test/CodeGen/AMDGPU/NextUseAnalysis/sequence_2_loops.mir - llvm-project/llvm - Git at Google

 # RUN: llc -mtriple=amdgcn -mcpu=gfx1200 \
 # RUN:     -run-pass=amdgpu-next-use-printer \
 # RUN:     -amdgpu-next-use-analysis-config=graphics \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-as-json=- \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-verbose \
 # RUN:     -filetype=null \
 # RUN:     %s | FileCheck --check-prefix=CHECK-GX-JSON %s

 # RUN: llc -mtriple=amdgcn -mcpu=gfx1200 \
 # RUN:     -run-pass=amdgpu-next-use-printer \
 # RUN:     -amdgpu-next-use-analysis-config=compute \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-as-json=- \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-verbose \
 # RUN:     -filetype=null \
 # RUN:     %s | FileCheck --check-prefix=CHECK-CP-JSON %s

 # RUN: llc -mtriple=amdgcn -mcpu=gfx1200 \
 # RUN:     "-passes=require<amdgpu-next-use-analysis>,print<amdgpu-next-use-analysis>" \
 # RUN:     -amdgpu-next-use-analysis-config=compute \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-as-json=- \
 # RUN:     -amdgpu-next-use-analysis-dump-distance-verbose \
 # RUN:     -filetype=null \
 # RUN:     %s | FileCheck --check-prefix=CHECK-CP-JSON %s

 #
 # MIR CFG:
 #
 #       bb.0
 #           |
 #           +<--------+
 #       bb.1    |
 #           +---------+
 #           |
 #        bb.2
 #           |
 #           +<--------+
 #       bb.3    |
 #           +---------+
 #           |
 #       bb.4
 #

 --- |
   define amdgpu_ps i32 @test6(ptr addrspace(1) %gep1, ptr addrspace(1) %gep2, ptr addrspace(1) %p1, ptr addrspace(1) %p3) {
   ret i32 0
   }
 ...

 ---
 name:            test6
 tracksRegLiveness: true
 body:             |
   bb.0:
     successors: %bb.1(0x80000000)
     liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7

     %0:vgpr_32 = COPY $vgpr7
     %1:vgpr_32 = COPY $vgpr6
     %2:vgpr_32 = COPY $vgpr5
     %3:vgpr_32 = COPY $vgpr4
     %4:vgpr_32 = COPY $vgpr3
     %5:vgpr_32 = COPY $vgpr2
     %6:vgpr_32 = COPY $vgpr1
     %7:vgpr_32 = COPY $vgpr0
     %8:vreg_64 = REG_SEQUENCE %3, %subreg.sub0, %2, %subreg.sub1
     %9:vreg_64 = REG_SEQUENCE %5, %subreg.sub0, %4, %subreg.sub1
     %10:vreg_64 = REG_SEQUENCE %7, %subreg.sub0, %6, %subreg.sub1
     %11:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 0, 0, implicit $exec :: (load (s8) from %ir.p1, addrspace 1)
     %12:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 1, 0, implicit $exec :: (load (s8) from %ir.p1 + 1, addrspace 1)
     %13:vgpr_32 = V_LSHL_OR_B32_e64 %12, 8, %11, implicit $exec
     %14:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 2, 0, implicit $exec :: (load (s8) from %ir.p1 + 2, addrspace 1)
     %15:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 3, 0, implicit $exec :: (load (s8) from %ir.p1 + 3, addrspace 1)
     %16:vgpr_32 = V_LSHL_OR_B32_e64 %15, 8, %14, implicit $exec
     %17:vgpr_32 = V_LSHL_OR_B32_e64 %16, 16, %13, implicit $exec
     %18:vgpr_32 = V_MOV_B32_e32 100, implicit $exec
     %19:sreg_32 = S_MOV_B32 1
     %20:sreg_32 = S_MOV_B32 0

   bb.1:
     successors: %bb.2(0x04000000), %bb.1(0x7c000000)

     %21:sreg_32 = PHI %20, %bb.0, %22, %bb.1
     %23:sreg_32 = PHI %20, %bb.0, %24, %bb.1
     %25:sreg_32 = PHI %19, %bb.0, %26, %bb.1
     %27:vgpr_32 = PHI %17, %bb.0, %28, %bb.1
     %29:vgpr_32 = PHI %18, %bb.0, %30, %bb.1
     %31:vgpr_32 = PHI %17, %bb.0, %32, %bb.1
     %33:sreg_32 = S_ADD_I32 %25, -1, implicit-def dead $scc
     %34:sreg_32_xm0 = S_ASHR_I32 %33, 31, implicit-def dead $scc
     %35:sreg_64 = REG_SEQUENCE %33, %subreg.sub0, %34, %subreg.sub1
     %36:sreg_64 = nsw S_LSHL_B64 %35, 2, implicit-def dead $scc
     %37:vgpr_32, %38:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %9.sub0, %36.sub0, 0, implicit $exec
     %39:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %9.sub1, %38, 0, implicit $exec
     %40:vreg_64 = REG_SEQUENCE %37, %subreg.sub0, %39, %subreg.sub1
     %41:vgpr_32 = GLOBAL_LOAD_DWORD %40, 0, 0, implicit $exec :: (load (s32) from %ir.gep1, addrspace 1)
     %28:vgpr_32 = V_ADD_U32_e64 %25, %41, 0, implicit $exec
     %30:vgpr_32 = V_MUL_LO_U32_e64 %41, %25, implicit $exec
     GLOBAL_STORE_SHORT_D16_HI %10, %30, 2, 0, implicit $exec :: (store (s16) into %ir.p1 + 2, addrspace 1)
     GLOBAL_STORE_SHORT %10, %30, 0, 0, implicit $exec :: (store (s16) into %ir.p1, addrspace 1)
     %42:vgpr_32, %43:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %8.sub0, %36.sub0, 0, implicit $exec
     %44:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %8.sub1, %43, 0, implicit $exec
     %45:vreg_64 = REG_SEQUENCE %42, %subreg.sub0, %44, %subreg.sub1
     %46:vgpr_32 = GLOBAL_LOAD_USHORT %45, 0, 0, implicit $exec :: (load (s16) from %ir.gep2, addrspace 1)
     %47:vgpr_32 = GLOBAL_LOAD_USHORT %45, 2, 0, implicit $exec :: (load (s16) from %ir.gep2 + 2, addrspace 1)
     %48:vgpr_32 = V_LSHL_OR_B32_e64 %47, 16, %46, implicit $exec
     %26:sreg_32 = S_ADD_I32 %25, 1, implicit-def dead $scc
     %24:sreg_32 = S_ADD_I32 %23, -1, implicit-def dead $scc
     %32:vgpr_32 = V_ADD_U32_e64 %23, %48, 0, implicit $exec
     %49:sreg_32 = V_CMP_GE_U32_e64 %25, %1, implicit $exec
     %22:sreg_32 = SI_IF_BREAK %49, %21, implicit-def dead $scc
     %50:vgpr_32 = COPY %26, implicit $exec
     SI_LOOP %22, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
     S_BRANCH %bb.2

   bb.2:
     successors: %bb.3(0x80000000)

     SI_END_CF %22, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
     %51:vgpr_32 = V_ADD_U32_e64 -2, %50, 0, implicit $exec
     %52:vgpr_32 = V_MUL_LO_U32_e64 %30, %51, implicit $exec
     %53:vgpr_32 = V_MUL_LO_U32_e64 100, %27, implicit $exec
     GLOBAL_STORE_DWORD %8, %53, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)
     %54:sreg_32 = S_MOV_B32 0

   bb.3:
     successors: %bb.4(0x04000000), %bb.3(0x7c000000)

     %55:sreg_32 = PHI %54, %bb.2, %56, %bb.3
     %57:sreg_32 = PHI %54, %bb.2, %58, %bb.3
     %59:vgpr_32 = PHI %31, %bb.2, %52, %bb.3
     %58:sreg_32 = S_ADD_I32 %57, 2, implicit-def dead $scc
     %60:sreg_32 = V_CMP_GE_U32_e64 %58, %0, implicit $exec
     %56:sreg_32 = SI_IF_BREAK %60, %55, implicit-def dead $scc
     %61:vgpr_32 = COPY %58, implicit $exec
     SI_LOOP %56, %bb.3, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
     S_BRANCH %bb.4

   bb.4:
     SI_END_CF %56, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
     GLOBAL_STORE_DWORD %8, %59, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)
     %62:vgpr_32 = V_ADD3_U32_e64 %59, %61, %29, implicit $exec
     %63:vgpr_32 = V_ADD3_U32_e64 %62, %53, %41, implicit $exec
     %64:vgpr_32 = V_ADD3_U32_e64 %17, %63, 100, implicit $exec
     %65:sreg_32_xm0 = V_READFIRSTLANE_B32 %64, implicit $exec
     $sgpr0 = COPY %65
     SI_RETURN_TO_EPILOG killed $sgpr0
 ...
 ---


 # CHECK-GX-JSON:      {
 # CHECK-GX-JSON-NEXT:  "next-use-analysis": {
 # CHECK-GX-JSON-NEXT:    "furthest-distances": {
 # CHECK-GX-JSON-NEXT:      "bb.0": [
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%0:vgpr_32 = COPY $vgpr7",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {},
 # CHECK-GX-JSON-NEXT:          "furthest": {},
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {}
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%1:vgpr_32 = COPY $vgpr6",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4126
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4126
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4126
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%2:vgpr_32 = COPY $vgpr5",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4125
 # CHECK-GX-JSON-DAG:             "%1": 46
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4125
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4125
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%3:vgpr_32 = COPY $vgpr4",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4124
 # CHECK-GX-JSON-DAG:             "%1": 45
 # CHECK-GX-JSON-DAG:             "%2": 5
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4124
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4124
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%4:vgpr_32 = COPY $vgpr3",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4123
 # CHECK-GX-JSON-DAG:             "%1": 44
 # CHECK-GX-JSON-DAG:             "%2": 4
 # CHECK-GX-JSON-DAG:             "%3": 4
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4123
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4123
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%5:vgpr_32 = COPY $vgpr2",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4122
 # CHECK-GX-JSON-DAG:             "%1": 43
 # CHECK-GX-JSON-DAG:             "%2": 3
 # CHECK-GX-JSON-DAG:             "%3": 3
 # CHECK-GX-JSON-DAG:             "%4": 4
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4122
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4122
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%6:vgpr_32 = COPY $vgpr1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4121
 # CHECK-GX-JSON-DAG:             "%1": 42
 # CHECK-GX-JSON-DAG:             "%2": 2
 # CHECK-GX-JSON-DAG:             "%3": 2
 # CHECK-GX-JSON-DAG:             "%4": 3
 # CHECK-GX-JSON-DAG:             "%5": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4121
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4121
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%7:vgpr_32 = COPY $vgpr0",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4120
 # CHECK-GX-JSON-DAG:             "%1": 41
 # CHECK-GX-JSON-DAG:             "%2": 1
 # CHECK-GX-JSON-DAG:             "%3": 1
 # CHECK-GX-JSON-DAG:             "%4": 2
 # CHECK-GX-JSON-DAG:             "%5": 2
 # CHECK-GX-JSON-DAG:             "%6": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4120
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4120
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%8:vreg_64 = REG_SEQUENCE %3, %subreg.sub0, %2, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4119
 # CHECK-GX-JSON-DAG:             "%1": 40
 # CHECK-GX-JSON-DAG:             "%2": 0
 # CHECK-GX-JSON-DAG:             "%3": 0
 # CHECK-GX-JSON-DAG:             "%4": 1
 # CHECK-GX-JSON-DAG:             "%5": 1
 # CHECK-GX-JSON-DAG:             "%6": 2
 # CHECK-GX-JSON-DAG:             "%7": 2
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4119
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4119
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%9:vreg_64 = REG_SEQUENCE %5, %subreg.sub0, %4, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4118
 # CHECK-GX-JSON-DAG:             "%1": 39
 # CHECK-GX-JSON-DAG:             "%4": 0
 # CHECK-GX-JSON-DAG:             "%5": 0
 # CHECK-GX-JSON-DAG:             "%6": 1
 # CHECK-GX-JSON-DAG:             "%7": 1
 # CHECK-GX-JSON-DAG:             "%8:sub0": 30
 # CHECK-GX-JSON-DAG:             "%8:sub1": 31
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4118
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4118
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%10:vreg_64 = REG_SEQUENCE %7, %subreg.sub0, %6, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4117
 # CHECK-GX-JSON-DAG:             "%1": 38
 # CHECK-GX-JSON-DAG:             "%6": 0
 # CHECK-GX-JSON-DAG:             "%7": 0
 # CHECK-GX-JSON-DAG:             "%8:sub0": 29
 # CHECK-GX-JSON-DAG:             "%8:sub1": 30
 # CHECK-GX-JSON-DAG:             "%9:sub0": 21
 # CHECK-GX-JSON-DAG:             "%9:sub1": 22
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4117
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4117
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%11:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 0, 0, implicit $exec :: (load (s8) from %ir.p1, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4116
 # CHECK-GX-JSON-DAG:             "%1": 37
 # CHECK-GX-JSON-DAG:             "%8:sub0": 28
 # CHECK-GX-JSON-DAG:             "%8:sub1": 29
 # CHECK-GX-JSON-DAG:             "%9:sub0": 20
 # CHECK-GX-JSON-DAG:             "%9:sub1": 21
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4116
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4116
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%12:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 1, 0, implicit $exec :: (load (s8) from %ir.p1 + 1, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4115
 # CHECK-GX-JSON-DAG:             "%1": 36
 # CHECK-GX-JSON-DAG:             "%8:sub0": 27
 # CHECK-GX-JSON-DAG:             "%8:sub1": 28
 # CHECK-GX-JSON-DAG:             "%9:sub0": 19
 # CHECK-GX-JSON-DAG:             "%9:sub1": 20
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON-DAG:             "%11": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4115
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4115
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%13:vgpr_32 = V_LSHL_OR_B32_e64 %12, 8, %11, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4114
 # CHECK-GX-JSON-DAG:             "%1": 35
 # CHECK-GX-JSON-DAG:             "%8:sub0": 26
 # CHECK-GX-JSON-DAG:             "%8:sub1": 27
 # CHECK-GX-JSON-DAG:             "%9:sub0": 18
 # CHECK-GX-JSON-DAG:             "%9:sub1": 19
 # CHECK-GX-JSON-DAG:             "%10": 1
 # CHECK-GX-JSON-DAG:             "%11": 0
 # CHECK-GX-JSON-DAG:             "%12": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4114
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4114
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%14:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 2, 0, implicit $exec :: (load (s8) from %ir.p1 + 2, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4113
 # CHECK-GX-JSON-DAG:             "%1": 34
 # CHECK-GX-JSON-DAG:             "%8:sub0": 25
 # CHECK-GX-JSON-DAG:             "%8:sub1": 26
 # CHECK-GX-JSON-DAG:             "%9:sub0": 17
 # CHECK-GX-JSON-DAG:             "%9:sub1": 18
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON-DAG:             "%13": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4113
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4113
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%15:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 3, 0, implicit $exec :: (load (s8) from %ir.p1 + 3, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4112
 # CHECK-GX-JSON-DAG:             "%1": 33
 # CHECK-GX-JSON-DAG:             "%8:sub0": 24
 # CHECK-GX-JSON-DAG:             "%8:sub1": 25
 # CHECK-GX-JSON-DAG:             "%9:sub0": 16
 # CHECK-GX-JSON-DAG:             "%9:sub1": 17
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON-DAG:             "%13": 2
 # CHECK-GX-JSON-DAG:             "%14": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4112
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4112
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%16:vgpr_32 = V_LSHL_OR_B32_e64 %15, 8, %14, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4111
 # CHECK-GX-JSON-DAG:             "%1": 32
 # CHECK-GX-JSON-DAG:             "%8:sub0": 23
 # CHECK-GX-JSON-DAG:             "%8:sub1": 24
 # CHECK-GX-JSON-DAG:             "%9:sub0": 15
 # CHECK-GX-JSON-DAG:             "%9:sub1": 16
 # CHECK-GX-JSON-DAG:             "%10": 21
 # CHECK-GX-JSON-DAG:             "%13": 1
 # CHECK-GX-JSON-DAG:             "%14": 0
 # CHECK-GX-JSON-DAG:             "%15": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4111
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4111
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%17:vgpr_32 = V_LSHL_OR_B32_e64 %16, 16, %13, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4110
 # CHECK-GX-JSON-DAG:             "%1": 31
 # CHECK-GX-JSON-DAG:             "%8:sub0": 22
 # CHECK-GX-JSON-DAG:             "%8:sub1": 23
 # CHECK-GX-JSON-DAG:             "%9:sub0": 14
 # CHECK-GX-JSON-DAG:             "%9:sub1": 15
 # CHECK-GX-JSON-DAG:             "%10": 20
 # CHECK-GX-JSON-DAG:             "%13": 0
 # CHECK-GX-JSON-DAG:             "%16": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4110
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4110
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%18:vgpr_32 = V_MOV_B32_e32 100, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4109
 # CHECK-GX-JSON-DAG:             "%1": 30
 # CHECK-GX-JSON-DAG:             "%8:sub0": 21
 # CHECK-GX-JSON-DAG:             "%8:sub1": 22
 # CHECK-GX-JSON-DAG:             "%9:sub0": 13
 # CHECK-GX-JSON-DAG:             "%9:sub1": 14
 # CHECK-GX-JSON-DAG:             "%10": 19
 # CHECK-GX-JSON-DAG:             "%17": 6
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4109
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4109
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%19:sreg_32 = S_MOV_B32 1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4108
 # CHECK-GX-JSON-DAG:             "%1": 29
 # CHECK-GX-JSON-DAG:             "%8:sub0": 20
 # CHECK-GX-JSON-DAG:             "%8:sub1": 21
 # CHECK-GX-JSON-DAG:             "%9:sub0": 12
 # CHECK-GX-JSON-DAG:             "%9:sub1": 13
 # CHECK-GX-JSON-DAG:             "%10": 18
 # CHECK-GX-JSON-DAG:             "%17": 5
 # CHECK-GX-JSON-DAG:             "%18": 6
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4108
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4108
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%20:sreg_32 = S_MOV_B32 0",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 28
 # CHECK-GX-JSON-DAG:             "%8:sub0": 19
 # CHECK-GX-JSON-DAG:             "%8:sub1": 20
 # CHECK-GX-JSON-DAG:             "%9:sub0": 11
 # CHECK-GX-JSON-DAG:             "%9:sub1": 12
 # CHECK-GX-JSON-DAG:             "%10": 17
 # CHECK-GX-JSON-DAG:             "%17": 4
 # CHECK-GX-JSON-DAG:             "%18": 5
 # CHECK-GX-JSON-DAG:             "%19": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:      ],
 # CHECK-GX-JSON-NEXT:      "bb.1": [
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%21:sreg_32 = PHI %20, %bb.0, %22, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 27
 # CHECK-GX-JSON-DAG:             "%8:sub0": 18
 # CHECK-GX-JSON-DAG:             "%8:sub1": 19
 # CHECK-GX-JSON-DAG:             "%9:sub0": 10
 # CHECK-GX-JSON-DAG:             "%9:sub1": 11
 # CHECK-GX-JSON-DAG:             "%10": 16
 # CHECK-GX-JSON-DAG:             "%17": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%23:sreg_32 = PHI %20, %bb.0, %24, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 26
 # CHECK-GX-JSON-DAG:             "%8:sub0": 17
 # CHECK-GX-JSON-DAG:             "%8:sub1": 18
 # CHECK-GX-JSON-DAG:             "%9:sub0": 9
 # CHECK-GX-JSON-DAG:             "%9:sub1": 10
 # CHECK-GX-JSON-DAG:             "%10": 15
 # CHECK-GX-JSON-DAG:             "%17": 2
 # CHECK-GX-JSON-DAG:             "%21": 27
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%25:sreg_32 = PHI %19, %bb.0, %26, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 25
 # CHECK-GX-JSON-DAG:             "%8:sub0": 16
 # CHECK-GX-JSON-DAG:             "%8:sub1": 17
 # CHECK-GX-JSON-DAG:             "%9:sub0": 8
 # CHECK-GX-JSON-DAG:             "%9:sub1": 9
 # CHECK-GX-JSON-DAG:             "%10": 14
 # CHECK-GX-JSON-DAG:             "%17": 1
 # CHECK-GX-JSON-DAG:             "%21": 26
 # CHECK-GX-JSON-DAG:             "%23": 23
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%27:vgpr_32 = PHI %17, %bb.0, %28, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 24
 # CHECK-GX-JSON-DAG:             "%8:sub0": 15
 # CHECK-GX-JSON-DAG:             "%8:sub1": 16
 # CHECK-GX-JSON-DAG:             "%9:sub0": 7
 # CHECK-GX-JSON-DAG:             "%9:sub1": 8
 # CHECK-GX-JSON-DAG:             "%10": 13
 # CHECK-GX-JSON-DAG:             "%17": 0
 # CHECK-GX-JSON-DAG:             "%21": 25
 # CHECK-GX-JSON-DAG:             "%23": 22
 # CHECK-GX-JSON-DAG:             "%25": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%29:vgpr_32 = PHI %18, %bb.0, %30, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 23
 # CHECK-GX-JSON-DAG:             "%8:sub0": 14
 # CHECK-GX-JSON-DAG:             "%8:sub1": 15
 # CHECK-GX-JSON-DAG:             "%9:sub0": 6
 # CHECK-GX-JSON-DAG:             "%9:sub1": 7
 # CHECK-GX-JSON-DAG:             "%10": 12
 # CHECK-GX-JSON-DAG:             "%17": 1
 # CHECK-GX-JSON-DAG:             "%21": 24
 # CHECK-GX-JSON-DAG:             "%23": 21
 # CHECK-GX-JSON-DAG:             "%25": 2
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%0",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4107
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%31:vgpr_32 = PHI %17, %bb.0, %32, %bb.1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 22
 # CHECK-GX-JSON-DAG:             "%8:sub0": 13
 # CHECK-GX-JSON-DAG:             "%8:sub1": 14
 # CHECK-GX-JSON-DAG:             "%9:sub0": 5
 # CHECK-GX-JSON-DAG:             "%9:sub1": 6
 # CHECK-GX-JSON-DAG:             "%10": 11
 # CHECK-GX-JSON-DAG:             "%17": 0
 # CHECK-GX-JSON-DAG:             "%21": 23
 # CHECK-GX-JSON-DAG:             "%23": 20
 # CHECK-GX-JSON-DAG:             "%25": 1
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%29",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5257
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%29",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5257
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%33:sreg_32 = S_ADD_I32 %25, -1, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 21
 # CHECK-GX-JSON-DAG:             "%8:sub0": 12
 # CHECK-GX-JSON-DAG:             "%8:sub1": 13
 # CHECK-GX-JSON-DAG:             "%9:sub0": 4
 # CHECK-GX-JSON-DAG:             "%9:sub1": 5
 # CHECK-GX-JSON-DAG:             "%10": 10
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 22
 # CHECK-GX-JSON-DAG:             "%23": 19
 # CHECK-GX-JSON-DAG:             "%25": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%34:sreg_32_xm0 = S_ASHR_I32 %33, 31, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 20
 # CHECK-GX-JSON-DAG:             "%8:sub0": 11
 # CHECK-GX-JSON-DAG:             "%8:sub1": 12
 # CHECK-GX-JSON-DAG:             "%9:sub0": 3
 # CHECK-GX-JSON-DAG:             "%9:sub1": 4
 # CHECK-GX-JSON-DAG:             "%10": 9
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 21
 # CHECK-GX-JSON-DAG:             "%23": 18
 # CHECK-GX-JSON-DAG:             "%25": 7
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%33": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%35:sreg_64 = REG_SEQUENCE %33, %subreg.sub0, %34, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 19
 # CHECK-GX-JSON-DAG:             "%8:sub0": 10
 # CHECK-GX-JSON-DAG:             "%8:sub1": 11
 # CHECK-GX-JSON-DAG:             "%9:sub0": 2
 # CHECK-GX-JSON-DAG:             "%9:sub1": 3
 # CHECK-GX-JSON-DAG:             "%10": 8
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 20
 # CHECK-GX-JSON-DAG:             "%23": 17
 # CHECK-GX-JSON-DAG:             "%25": 6
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%33": 0
 # CHECK-GX-JSON-DAG:             "%34": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%36:sreg_64 = nsw S_LSHL_B64 %35, 2, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 18
 # CHECK-GX-JSON-DAG:             "%8:sub0": 9
 # CHECK-GX-JSON-DAG:             "%8:sub1": 10
 # CHECK-GX-JSON-DAG:             "%9:sub0": 1
 # CHECK-GX-JSON-DAG:             "%9:sub1": 2
 # CHECK-GX-JSON-DAG:             "%10": 7
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 19
 # CHECK-GX-JSON-DAG:             "%23": 16
 # CHECK-GX-JSON-DAG:             "%25": 5
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%35": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%37:vgpr_32, %38:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %9.sub0, %36.sub0, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 17
 # CHECK-GX-JSON-DAG:             "%8:sub0": 8
 # CHECK-GX-JSON-DAG:             "%8:sub1": 9
 # CHECK-GX-JSON-DAG:             "%9:sub0": 0
 # CHECK-GX-JSON-DAG:             "%9:sub1": 1
 # CHECK-GX-JSON-DAG:             "%10": 6
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 18
 # CHECK-GX-JSON-DAG:             "%23": 15
 # CHECK-GX-JSON-DAG:             "%25": 4
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 0
 # CHECK-GX-JSON-DAG:             "%36:sub1": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%39:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %9.sub1, %38, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 16
 # CHECK-GX-JSON-DAG:             "%8:sub0": 7
 # CHECK-GX-JSON-DAG:             "%8:sub1": 8
 # CHECK-GX-JSON-DAG:             "%9:sub1": 0
 # CHECK-GX-JSON-DAG:             "%10": 5
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 17
 # CHECK-GX-JSON-DAG:             "%23": 14
 # CHECK-GX-JSON-DAG:             "%25": 3
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 7
 # CHECK-GX-JSON-DAG:             "%36:sub1": 0
 # CHECK-GX-JSON-DAG:             "%37": 1
 # CHECK-GX-JSON-DAG:             "%38": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%40:vreg_64 = REG_SEQUENCE %37, %subreg.sub0, %39, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 15
 # CHECK-GX-JSON-DAG:             "%8:sub0": 6
 # CHECK-GX-JSON-DAG:             "%8:sub1": 7
 # CHECK-GX-JSON-DAG:             "%10": 4
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 16
 # CHECK-GX-JSON-DAG:             "%23": 13
 # CHECK-GX-JSON-DAG:             "%25": 2
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 6
 # CHECK-GX-JSON-DAG:             "%36:sub1": 7
 # CHECK-GX-JSON-DAG:             "%37": 0
 # CHECK-GX-JSON-DAG:             "%39": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%41:vgpr_32 = GLOBAL_LOAD_DWORD %40, 0, 0, implicit $exec :: (load (s32) from %ir.gep1, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 14
 # CHECK-GX-JSON-DAG:             "%8:sub0": 5
 # CHECK-GX-JSON-DAG:             "%8:sub1": 6
 # CHECK-GX-JSON-DAG:             "%10": 3
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 15
 # CHECK-GX-JSON-DAG:             "%23": 12
 # CHECK-GX-JSON-DAG:             "%25": 1
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 5
 # CHECK-GX-JSON-DAG:             "%36:sub1": 6
 # CHECK-GX-JSON-DAG:             "%40": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%28:vgpr_32 = V_ADD_U32_e64 %25, %41, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 13
 # CHECK-GX-JSON-DAG:             "%8:sub0": 4
 # CHECK-GX-JSON-DAG:             "%8:sub1": 5
 # CHECK-GX-JSON-DAG:             "%10": 2
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 14
 # CHECK-GX-JSON-DAG:             "%23": 11
 # CHECK-GX-JSON-DAG:             "%25": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 4
 # CHECK-GX-JSON-DAG:             "%36:sub1": 5
 # CHECK-GX-JSON-DAG:             "%41": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%30:vgpr_32 = V_MUL_LO_U32_e64 %41, %25, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 12
 # CHECK-GX-JSON-DAG:             "%8:sub0": 3
 # CHECK-GX-JSON-DAG:             "%8:sub1": 4
 # CHECK-GX-JSON-DAG:             "%10": 1
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 13
 # CHECK-GX-JSON-DAG:             "%23": 10
 # CHECK-GX-JSON-DAG:             "%25": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 3
 # CHECK-GX-JSON-DAG:             "%36:sub1": 4
 # CHECK-GX-JSON-DAG:             "%41": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "GLOBAL_STORE_SHORT_D16_HI %10, %30, 2, 0, implicit $exec :: (store (s16) into %ir.p1 + 2, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 11
 # CHECK-GX-JSON-DAG:             "%8:sub0": 2
 # CHECK-GX-JSON-DAG:             "%8:sub1": 3
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 12
 # CHECK-GX-JSON-DAG:             "%23": 9
 # CHECK-GX-JSON-DAG:             "%25": 8
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 0
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 2
 # CHECK-GX-JSON-DAG:             "%36:sub1": 3
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "GLOBAL_STORE_SHORT %10, %30, 0, 0, implicit $exec :: (store (s16) into %ir.p1, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 10
 # CHECK-GX-JSON-DAG:             "%8:sub0": 1
 # CHECK-GX-JSON-DAG:             "%8:sub1": 2
 # CHECK-GX-JSON-DAG:             "%10": 0
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 11
 # CHECK-GX-JSON-DAG:             "%23": 8
 # CHECK-GX-JSON-DAG:             "%25": 7
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 0
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 1
 # CHECK-GX-JSON-DAG:             "%36:sub1": 2
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%42:vgpr_32, %43:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %8.sub0, %36.sub0, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 9
 # CHECK-GX-JSON-DAG:             "%8:sub0": 0
 # CHECK-GX-JSON-DAG:             "%8:sub1": 1
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 10
 # CHECK-GX-JSON-DAG:             "%23": 7
 # CHECK-GX-JSON-DAG:             "%25": 6
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub0": 0
 # CHECK-GX-JSON-DAG:             "%36:sub1": 1
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%44:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %8.sub1, %43, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 8
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%8:sub1": 0
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 9
 # CHECK-GX-JSON-DAG:             "%23": 6
 # CHECK-GX-JSON-DAG:             "%25": 5
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%36:sub1": 0
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%42": 1
 # CHECK-GX-JSON-DAG:             "%43": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%45:vreg_64 = REG_SEQUENCE %42, %subreg.sub0, %44, %subreg.sub1",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 7
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 8
 # CHECK-GX-JSON-DAG:             "%23": 5
 # CHECK-GX-JSON-DAG:             "%25": 4
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%42": 0
 # CHECK-GX-JSON-DAG:             "%44": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%46:vgpr_32 = GLOBAL_LOAD_USHORT %45, 0, 0, implicit $exec :: (load (s16) from %ir.gep2, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 6
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 7
 # CHECK-GX-JSON-DAG:             "%23": 4
 # CHECK-GX-JSON-DAG:             "%25": 3
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%45": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%47:vgpr_32 = GLOBAL_LOAD_USHORT %45, 2, 0, implicit $exec :: (load (s16) from %ir.gep2 + 2, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 5
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 6
 # CHECK-GX-JSON-DAG:             "%23": 3
 # CHECK-GX-JSON-DAG:             "%25": 2
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%45": 0
 # CHECK-GX-JSON-DAG:             "%46": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%48:vgpr_32 = V_LSHL_OR_B32_e64 %47, 16, %46, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 4
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 5
 # CHECK-GX-JSON-DAG:             "%23": 2
 # CHECK-GX-JSON-DAG:             "%25": 1
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%46": 0
 # CHECK-GX-JSON-DAG:             "%47": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%26:sreg_32 = S_ADD_I32 %25, 1, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 3
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 4
 # CHECK-GX-JSON-DAG:             "%23": 1
 # CHECK-GX-JSON-DAG:             "%25": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%48": 2
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%24:sreg_32 = S_ADD_I32 %23, -1, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 2
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 3
 # CHECK-GX-JSON-DAG:             "%23": 0
 # CHECK-GX-JSON-DAG:             "%25": 2
 # CHECK-GX-JSON-DAG:             "%26": 4
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%48": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%32:vgpr_32 = V_ADD_U32_e64 %23, %48, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 1
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 2
 # CHECK-GX-JSON-DAG:             "%23": 0
 # CHECK-GX-JSON-DAG:             "%25": 1
 # CHECK-GX-JSON-DAG:             "%26": 3
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%48": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%49:sreg_32 = V_CMP_GE_U32_e64 %25, %1, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%1": 0
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 1
 # CHECK-GX-JSON-DAG:             "%25": 0
 # CHECK-GX-JSON-DAG:             "%26": 2
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%22:sreg_32 = SI_IF_BREAK %49, %21, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%21": 0
 # CHECK-GX-JSON-DAG:             "%26": 1
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%49": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%50:vgpr_32 = COPY %26, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%22": 1
 # CHECK-GX-JSON-DAG:             "%26": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "SI_LOOP %22, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%22": 0
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%50": 4098
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "S_BRANCH %bb.2",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4107
 # CHECK-GX-JSON-DAG:             "%8": 4101
 # CHECK-GX-JSON-DAG:             "%17": 5259
 # CHECK-GX-JSON-DAG:             "%22": 4097
 # CHECK-GX-JSON-DAG:             "%27": 4100
 # CHECK-GX-JSON-DAG:             "%29": 5257
 # CHECK-GX-JSON-DAG:             "%30": 4099
 # CHECK-GX-JSON-DAG:             "%31": 4105
 # CHECK-GX-JSON-DAG:             "%41": 5258
 # CHECK-GX-JSON-DAG:             "%50": 4098
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 5259
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:      ],
 # CHECK-GX-JSON-NEXT:      "bb.2": [
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "SI_END_CF %22, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 10
 # CHECK-GX-JSON-DAG:             "%8": 4
 # CHECK-GX-JSON-DAG:             "%17": 1162
 # CHECK-GX-JSON-DAG:             "%22": 0
 # CHECK-GX-JSON-DAG:             "%27": 3
 # CHECK-GX-JSON-DAG:             "%29": 1160
 # CHECK-GX-JSON-DAG:             "%30": 2
 # CHECK-GX-JSON-DAG:             "%31": 8
 # CHECK-GX-JSON-DAG:             "%41": 1161
 # CHECK-GX-JSON-DAG:             "%50": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1162
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1162
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%51:vgpr_32 = V_ADD_U32_e64 -2, %50, 0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 9
 # CHECK-GX-JSON-DAG:             "%8": 3
 # CHECK-GX-JSON-DAG:             "%17": 1161
 # CHECK-GX-JSON-DAG:             "%27": 2
 # CHECK-GX-JSON-DAG:             "%29": 1159
 # CHECK-GX-JSON-DAG:             "%30": 1
 # CHECK-GX-JSON-DAG:             "%31": 7
 # CHECK-GX-JSON-DAG:             "%41": 1160
 # CHECK-GX-JSON-DAG:             "%50": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1161
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1161
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%52:vgpr_32 = V_MUL_LO_U32_e64 %30, %51, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 8
 # CHECK-GX-JSON-DAG:             "%8": 2
 # CHECK-GX-JSON-DAG:             "%17": 1160
 # CHECK-GX-JSON-DAG:             "%27": 1
 # CHECK-GX-JSON-DAG:             "%29": 1158
 # CHECK-GX-JSON-DAG:             "%30": 0
 # CHECK-GX-JSON-DAG:             "%31": 6
 # CHECK-GX-JSON-DAG:             "%41": 1159
 # CHECK-GX-JSON-DAG:             "%51": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1160
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1160
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%53:vgpr_32 = V_MUL_LO_U32_e64 100, %27, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 7
 # CHECK-GX-JSON-DAG:             "%8": 1
 # CHECK-GX-JSON-DAG:             "%17": 1159
 # CHECK-GX-JSON-DAG:             "%27": 0
 # CHECK-GX-JSON-DAG:             "%29": 1157
 # CHECK-GX-JSON-DAG:             "%31": 5
 # CHECK-GX-JSON-DAG:             "%41": 1158
 # CHECK-GX-JSON-DAG:             "%52": 5
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1159
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1159
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "GLOBAL_STORE_DWORD %8, %53, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 6
 # CHECK-GX-JSON-DAG:             "%8": 0
 # CHECK-GX-JSON-DAG:             "%17": 1158
 # CHECK-GX-JSON-DAG:             "%29": 1156
 # CHECK-GX-JSON-DAG:             "%31": 4
 # CHECK-GX-JSON-DAG:             "%41": 1157
 # CHECK-GX-JSON-DAG:             "%52": 4
 # CHECK-GX-JSON-DAG:             "%53": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1158
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1158
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%54:sreg_32 = S_MOV_B32 0",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 5
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%31": 3
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%52": 3
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:      ],
 # CHECK-GX-JSON-NEXT:      "bb.3": [
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%55:sreg_32 = PHI %54, %bb.2, %56, %bb.3",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 4
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%52": 2
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%57:sreg_32 = PHI %54, %bb.2, %58, %bb.3",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 3
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%52": 1
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%55": 4
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%59:vgpr_32 = PHI %31, %bb.2, %52, %bb.3",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 2
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%52": 0
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%55": 3
 # CHECK-GX-JSON-DAG:             "%57": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%58:sreg_32 = S_ADD_I32 %57, 2, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 1
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%55": 2
 # CHECK-GX-JSON-DAG:             "%57": 0
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%60:sreg_32 = V_CMP_GE_U32_e64 %58, %0, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%0": 0
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%55": 1
 # CHECK-GX-JSON-DAG:             "%58": 0
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%56:sreg_32 = SI_IF_BREAK %60, %55, implicit-def dead $scc",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%55": 0
 # CHECK-GX-JSON-DAG:             "%58": 1
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON-DAG:             "%60": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%61:vgpr_32 = COPY %58, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%56": 1
 # CHECK-GX-JSON-DAG:             "%58": 0
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "SI_LOOP %56, %bb.3, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%56": 0
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON-DAG:             "%61": 1155
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "S_BRANCH %bb.4",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 1154
 # CHECK-GX-JSON-DAG:             "%17": 1157
 # CHECK-GX-JSON-DAG:             "%29": 1155
 # CHECK-GX-JSON-DAG:             "%41": 1156
 # CHECK-GX-JSON-DAG:             "%53": 1156
 # CHECK-GX-JSON-DAG:             "%56": 1153
 # CHECK-GX-JSON-DAG:             "%59": 1154
 # CHECK-GX-JSON-DAG:             "%61": 1155
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1157
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:      ],
 # CHECK-GX-JSON-NEXT:      "bb.4": [
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "SI_END_CF %56, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 1
 # CHECK-GX-JSON-DAG:             "%17": 4
 # CHECK-GX-JSON-DAG:             "%29": 2
 # CHECK-GX-JSON-DAG:             "%41": 3
 # CHECK-GX-JSON-DAG:             "%53": 3
 # CHECK-GX-JSON-DAG:             "%56": 0
 # CHECK-GX-JSON-DAG:             "%59": 1
 # CHECK-GX-JSON-DAG:             "%61": 2
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 4
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "GLOBAL_STORE_DWORD %8, %59, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%8": 0
 # CHECK-GX-JSON-DAG:             "%17": 3
 # CHECK-GX-JSON-DAG:             "%29": 1
 # CHECK-GX-JSON-DAG:             "%41": 2
 # CHECK-GX-JSON-DAG:             "%53": 2
 # CHECK-GX-JSON-DAG:             "%59": 0
 # CHECK-GX-JSON-DAG:             "%61": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 3
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 3
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%62:vgpr_32 = V_ADD3_U32_e64 %59, %61, %29, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%17": 2
 # CHECK-GX-JSON-DAG:             "%29": 0
 # CHECK-GX-JSON-DAG:             "%41": 1
 # CHECK-GX-JSON-DAG:             "%53": 1
 # CHECK-GX-JSON-DAG:             "%59": 0
 # CHECK-GX-JSON-DAG:             "%61": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 2
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 2
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%63:vgpr_32 = V_ADD3_U32_e64 %62, %53, %41, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%17": 1
 # CHECK-GX-JSON-DAG:             "%41": 0
 # CHECK-GX-JSON-DAG:             "%53": 0
 # CHECK-GX-JSON-DAG:             "%62": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 1
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%64:vgpr_32 = V_ADD3_U32_e64 %17, %63, 100, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%17": 0
 # CHECK-GX-JSON-DAG:             "%63": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%17",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "%65:sreg_32_xm0 = V_READFIRSTLANE_B32 %64, implicit $exec",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%64": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%64",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%64",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "$sgpr0 = COPY %65",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {
 # CHECK-GX-JSON-DAG:             "%65": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest": {
 # CHECK-GX-JSON-DAG:             "register": "%65",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               },
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {
 # CHECK-GX-JSON-DAG:             "register": "%65",
 # CHECK-GX-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-GX-JSON-DAG:             "distance": 0
 # CHECK-GX-JSON:               }
 # CHECK-GX-JSON-NEXT:        },
 # CHECK-GX-JSON-NEXT:        {
 # CHECK-GX-JSON-NEXT:          "instr": "SI_RETURN_TO_EPILOG killed $sgpr0",
 # CHECK-GX-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:          "distances": {},
 # CHECK-GX-JSON-NEXT:          "furthest": {},
 # CHECK-GX-JSON-NEXT:          "furthest-subreg": {}
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:      ]
 # CHECK-GX-JSON-NEXT:    },
 # CHECK-GX-JSON-NEXT:    "distance-from-def-to-closest-use": {
 # CHECK-GX-JSON-DAG:       "%0": 4127,
 # CHECK-GX-JSON-DAG:       "%1": 47,
 # CHECK-GX-JSON-DAG:       "%2": 6,
 # CHECK-GX-JSON-DAG:       "%3": 5,
 # CHECK-GX-JSON-DAG:       "%4": 5,
 # CHECK-GX-JSON-DAG:       "%5": 4,
 # CHECK-GX-JSON-DAG:       "%6": 4,
 # CHECK-GX-JSON-DAG:       "%7": 3,
 # CHECK-GX-JSON-DAG:       "%8": 31,
 # CHECK-GX-JSON-DAG:       "%9": 22,
 # CHECK-GX-JSON-DAG:       "%10": 1,
 # CHECK-GX-JSON-DAG:       "%11": 2,
 # CHECK-GX-JSON-DAG:       "%12": 1,
 # CHECK-GX-JSON-DAG:       "%13": 4,
 # CHECK-GX-JSON-DAG:       "%14": 2,
 # CHECK-GX-JSON-DAG:       "%15": 1,
 # CHECK-GX-JSON-DAG:       "%16": 1,
 # CHECK-GX-JSON-DAG:       "%17": 7,
 # CHECK-GX-JSON-DAG:       "%18": 7,
 # CHECK-GX-JSON-DAG:       "%19": 4,
 # CHECK-GX-JSON-DAG:       "%20": 1,
 # CHECK-GX-JSON-DAG:       "%21": 28,
 # CHECK-GX-JSON-DAG:       "%23": 24,
 # CHECK-GX-JSON-DAG:       "%25": 4,
 # CHECK-GX-JSON-DAG:       "%27": 4100,
 # CHECK-GX-JSON-DAG:       "%29": 5257,
 # CHECK-GX-JSON-DAG:       "%31": 4105,
 # CHECK-GX-JSON-DAG:       "%33": 1,
 # CHECK-GX-JSON-DAG:       "%34": 1,
 # CHECK-GX-JSON-DAG:       "%35": 1,
 # CHECK-GX-JSON-DAG:       "%36": 1,
 # CHECK-GX-JSON-DAG:       "%37": 2,
 # CHECK-GX-JSON-DAG:       "%38": 1,
 # CHECK-GX-JSON-DAG:       "%39": 1,
 # CHECK-GX-JSON-DAG:       "%40": 1,
 # CHECK-GX-JSON-DAG:       "%41": 1,
 # CHECK-GX-JSON-DAG:       "%28": "<unreachable>",
 # CHECK-GX-JSON-DAG:       "%30": 1,
 # CHECK-GX-JSON-DAG:       "%42": 2,
 # CHECK-GX-JSON-DAG:       "%43": 1,
 # CHECK-GX-JSON-DAG:       "%44": 1,
 # CHECK-GX-JSON-DAG:       "%45": 1,
 # CHECK-GX-JSON-DAG:       "%46": 2,
 # CHECK-GX-JSON-DAG:       "%47": 1,
 # CHECK-GX-JSON-DAG:       "%48": 3,
 # CHECK-GX-JSON-DAG:       "%26": 5,
 # CHECK-GX-JSON-DAG:       "%24": "<unreachable>",
 # CHECK-GX-JSON-DAG:       "%32": "<unreachable>",
 # CHECK-GX-JSON-DAG:       "%49": 1,
 # CHECK-GX-JSON-DAG:       "%22": 2,
 # CHECK-GX-JSON-DAG:       "%50": 4098,
 # CHECK-GX-JSON-DAG:       "%51": 1,
 # CHECK-GX-JSON-DAG:       "%52": 6,
 # CHECK-GX-JSON-DAG:       "%53": 1,
 # CHECK-GX-JSON-DAG:       "%54": 1,
 # CHECK-GX-JSON-DAG:       "%55": 5,
 # CHECK-GX-JSON-DAG:       "%57": 2,
 # CHECK-GX-JSON-DAG:       "%59": 1154,
 # CHECK-GX-JSON-DAG:       "%58": 1,
 # CHECK-GX-JSON-DAG:       "%60": 1,
 # CHECK-GX-JSON-DAG:       "%56": 2,
 # CHECK-GX-JSON-DAG:       "%61": 1155,
 # CHECK-GX-JSON-DAG:       "%62": 1,
 # CHECK-GX-JSON-DAG:       "%63": 1,
 # CHECK-GX-JSON-DAG:       "%64": 1,
 # CHECK-GX-JSON-DAG:       "%65": 1
 # CHECK-GX-JSON:         },
 # CHECK-GX-JSON-NEXT:    "paths": [
 # CHECK-GX-JSON:         ],
 # CHECK-GX-JSON-NEXT:    "metrics": {
 # CHECK-GX-JSON-NEXT:        "distance-cache": {
 # CHECK-GX-JSON-NEXT:            "hits": {{[0-9]+}},
 # CHECK-GX-JSON-NEXT:            "misses": {{[0-9]+}}
 # CHECK-GX-JSON-NEXT:        }
 # CHECK-GX-JSON-NEXT:    }
 # CHECK-GX-JSON-NEXT:  },
 # CHECK-GX-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.wall": {{[0-9.e+-]+}},
 # CHECK-GX-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.user": {{[0-9.e+-]+}},
 # CHECK-GX-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.sys": {{[0-9.e+-]+}}
 # CHECK-GX-JSON:      }
 # CHECK-CP-JSON:      {
 # CHECK-CP-JSON-NEXT:  "next-use-analysis": {
 # CHECK-CP-JSON-NEXT:    "furthest-distances": {
 # CHECK-CP-JSON-NEXT:      "bb.0": [
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%0:vgpr_32 = COPY $vgpr7",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {},
 # CHECK-CP-JSON-NEXT:          "furthest": {},
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {}
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%1:vgpr_32 = COPY $vgpr6",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 51
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 51
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 51
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%2:vgpr_32 = COPY $vgpr5",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 50
 # CHECK-CP-JSON-DAG:             "%1": 18
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 50
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 50
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%3:vgpr_32 = COPY $vgpr4",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 49
 # CHECK-CP-JSON-DAG:             "%1": 17
 # CHECK-CP-JSON-DAG:             "%2": 5
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 49
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 49
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%4:vgpr_32 = COPY $vgpr3",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 48
 # CHECK-CP-JSON-DAG:             "%1": 16
 # CHECK-CP-JSON-DAG:             "%2": 4
 # CHECK-CP-JSON-DAG:             "%3": 4
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 48
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 48
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%5:vgpr_32 = COPY $vgpr2",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 47
 # CHECK-CP-JSON-DAG:             "%1": 15
 # CHECK-CP-JSON-DAG:             "%2": 3
 # CHECK-CP-JSON-DAG:             "%3": 3
 # CHECK-CP-JSON-DAG:             "%4": 4
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 47
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 47
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%6:vgpr_32 = COPY $vgpr1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 46
 # CHECK-CP-JSON-DAG:             "%1": 14
 # CHECK-CP-JSON-DAG:             "%2": 2
 # CHECK-CP-JSON-DAG:             "%3": 2
 # CHECK-CP-JSON-DAG:             "%4": 3
 # CHECK-CP-JSON-DAG:             "%5": 3
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 46
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 46
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%7:vgpr_32 = COPY $vgpr0",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 45
 # CHECK-CP-JSON-DAG:             "%1": 13
 # CHECK-CP-JSON-DAG:             "%2": 1
 # CHECK-CP-JSON-DAG:             "%3": 1
 # CHECK-CP-JSON-DAG:             "%4": 2
 # CHECK-CP-JSON-DAG:             "%5": 2
 # CHECK-CP-JSON-DAG:             "%6": 3
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 45
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 45
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%8:vreg_64 = REG_SEQUENCE %3, %subreg.sub0, %2, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 44
 # CHECK-CP-JSON-DAG:             "%1": 12
 # CHECK-CP-JSON-DAG:             "%2": 0
 # CHECK-CP-JSON-DAG:             "%3": 0
 # CHECK-CP-JSON-DAG:             "%4": 1
 # CHECK-CP-JSON-DAG:             "%5": 1
 # CHECK-CP-JSON-DAG:             "%6": 2
 # CHECK-CP-JSON-DAG:             "%7": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 44
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 44
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%9:vreg_64 = REG_SEQUENCE %5, %subreg.sub0, %4, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 43
 # CHECK-CP-JSON-DAG:             "%1": 11
 # CHECK-CP-JSON-DAG:             "%4": 0
 # CHECK-CP-JSON-DAG:             "%5": 0
 # CHECK-CP-JSON-DAG:             "%6": 1
 # CHECK-CP-JSON-DAG:             "%7": 1
 # CHECK-CP-JSON-DAG:             "%8:sub0": 11
 # CHECK-CP-JSON-DAG:             "%8:sub1": 11
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 43
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 43
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%10:vreg_64 = REG_SEQUENCE %7, %subreg.sub0, %6, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 42
 # CHECK-CP-JSON-DAG:             "%1": 10
 # CHECK-CP-JSON-DAG:             "%6": 0
 # CHECK-CP-JSON-DAG:             "%7": 0
 # CHECK-CP-JSON-DAG:             "%8:sub0": 10
 # CHECK-CP-JSON-DAG:             "%8:sub1": 10
 # CHECK-CP-JSON-DAG:             "%9:sub0": 10
 # CHECK-CP-JSON-DAG:             "%9:sub1": 10
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 42
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 42
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%11:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 0, 0, implicit $exec :: (load (s8) from %ir.p1, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 41
 # CHECK-CP-JSON-DAG:             "%1": 9
 # CHECK-CP-JSON-DAG:             "%8:sub0": 9
 # CHECK-CP-JSON-DAG:             "%8:sub1": 9
 # CHECK-CP-JSON-DAG:             "%9:sub0": 9
 # CHECK-CP-JSON-DAG:             "%9:sub1": 9
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 41
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 41
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%12:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 1, 0, implicit $exec :: (load (s8) from %ir.p1 + 1, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 40
 # CHECK-CP-JSON-DAG:             "%1": 8
 # CHECK-CP-JSON-DAG:             "%8:sub0": 8
 # CHECK-CP-JSON-DAG:             "%8:sub1": 8
 # CHECK-CP-JSON-DAG:             "%9:sub0": 8
 # CHECK-CP-JSON-DAG:             "%9:sub1": 8
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%11": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 40
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 40
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%13:vgpr_32 = V_LSHL_OR_B32_e64 %12, 8, %11, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 39
 # CHECK-CP-JSON-DAG:             "%1": 7
 # CHECK-CP-JSON-DAG:             "%8:sub0": 7
 # CHECK-CP-JSON-DAG:             "%8:sub1": 7
 # CHECK-CP-JSON-DAG:             "%9:sub0": 7
 # CHECK-CP-JSON-DAG:             "%9:sub1": 7
 # CHECK-CP-JSON-DAG:             "%10": 1
 # CHECK-CP-JSON-DAG:             "%11": 0
 # CHECK-CP-JSON-DAG:             "%12": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 39
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 39
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%14:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 2, 0, implicit $exec :: (load (s8) from %ir.p1 + 2, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 38
 # CHECK-CP-JSON-DAG:             "%1": 6
 # CHECK-CP-JSON-DAG:             "%8:sub0": 6
 # CHECK-CP-JSON-DAG:             "%8:sub1": 6
 # CHECK-CP-JSON-DAG:             "%9:sub0": 6
 # CHECK-CP-JSON-DAG:             "%9:sub1": 6
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%13": 3
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 38
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 38
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%15:vgpr_32 = GLOBAL_LOAD_UBYTE %10, 3, 0, implicit $exec :: (load (s8) from %ir.p1 + 3, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 37
 # CHECK-CP-JSON-DAG:             "%1": 5
 # CHECK-CP-JSON-DAG:             "%8:sub0": 5
 # CHECK-CP-JSON-DAG:             "%8:sub1": 5
 # CHECK-CP-JSON-DAG:             "%9:sub0": 5
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%13": 2
 # CHECK-CP-JSON-DAG:             "%14": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 37
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 37
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%16:vgpr_32 = V_LSHL_OR_B32_e64 %15, 8, %14, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 36
 # CHECK-CP-JSON-DAG:             "%1": 4
 # CHECK-CP-JSON-DAG:             "%8:sub0": 4
 # CHECK-CP-JSON-DAG:             "%8:sub1": 4
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 4
 # CHECK-CP-JSON-DAG:             "%10": 4
 # CHECK-CP-JSON-DAG:             "%13": 1
 # CHECK-CP-JSON-DAG:             "%14": 0
 # CHECK-CP-JSON-DAG:             "%15": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 36
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 36
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%17:vgpr_32 = V_LSHL_OR_B32_e64 %16, 16, %13, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 35
 # CHECK-CP-JSON-DAG:             "%1": 3
 # CHECK-CP-JSON-DAG:             "%8:sub0": 3
 # CHECK-CP-JSON-DAG:             "%8:sub1": 3
 # CHECK-CP-JSON-DAG:             "%9:sub0": 3
 # CHECK-CP-JSON-DAG:             "%9:sub1": 3
 # CHECK-CP-JSON-DAG:             "%10": 3
 # CHECK-CP-JSON-DAG:             "%13": 0
 # CHECK-CP-JSON-DAG:             "%16": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 35
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 35
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%18:vgpr_32 = V_MOV_B32_e32 100, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 34
 # CHECK-CP-JSON-DAG:             "%1": 2
 # CHECK-CP-JSON-DAG:             "%8:sub0": 2
 # CHECK-CP-JSON-DAG:             "%8:sub1": 2
 # CHECK-CP-JSON-DAG:             "%9:sub0": 2
 # CHECK-CP-JSON-DAG:             "%9:sub1": 2
 # CHECK-CP-JSON-DAG:             "%10": 2
 # CHECK-CP-JSON-DAG:             "%17": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 34
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 34
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%19:sreg_32 = S_MOV_B32 1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 33
 # CHECK-CP-JSON-DAG:             "%1": 1
 # CHECK-CP-JSON-DAG:             "%8:sub0": 1
 # CHECK-CP-JSON-DAG:             "%8:sub1": 1
 # CHECK-CP-JSON-DAG:             "%9:sub0": 1
 # CHECK-CP-JSON-DAG:             "%9:sub1": 1
 # CHECK-CP-JSON-DAG:             "%10": 1
 # CHECK-CP-JSON-DAG:             "%17": 1
 # CHECK-CP-JSON-DAG:             "%18": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 33
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 33
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%20:sreg_32 = S_MOV_B32 0",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 32
 # CHECK-CP-JSON-DAG:             "%1": 0
 # CHECK-CP-JSON-DAG:             "%8:sub0": 0
 # CHECK-CP-JSON-DAG:             "%8:sub1": 0
 # CHECK-CP-JSON-DAG:             "%9:sub0": 0
 # CHECK-CP-JSON-DAG:             "%9:sub1": 0
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%17": 0
 # CHECK-CP-JSON-DAG:             "%18": 0
 # CHECK-CP-JSON-DAG:             "%19": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 32
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%0",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 32
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:      ],
 # CHECK-CP-JSON-NEXT:      "bb.1": [
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%21:sreg_32 = PHI %20, %bb.0, %22, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%23:sreg_32 = PHI %20, %bb.0, %24, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%25:sreg_32 = PHI %19, %bb.0, %26, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON-DAG:             "%23": 19
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%27:vgpr_32 = PHI %17, %bb.0, %28, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON-DAG:             "%23": 19
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%29:vgpr_32 = PHI %18, %bb.0, %30, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON-DAG:             "%23": 19
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%31:vgpr_32 = PHI %17, %bb.0, %32, %bb.1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON-DAG:             "%23": 19
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%33:sreg_32 = S_ADD_I32 %25, -1, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 21
 # CHECK-CP-JSON-DAG:             "%8:sub0": 12
 # CHECK-CP-JSON-DAG:             "%8:sub1": 13
 # CHECK-CP-JSON-DAG:             "%9:sub0": 4
 # CHECK-CP-JSON-DAG:             "%9:sub1": 5
 # CHECK-CP-JSON-DAG:             "%10": 10
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 22
 # CHECK-CP-JSON-DAG:             "%23": 19
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%34:sreg_32_xm0 = S_ASHR_I32 %33, 31, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 20
 # CHECK-CP-JSON-DAG:             "%8:sub0": 11
 # CHECK-CP-JSON-DAG:             "%8:sub1": 12
 # CHECK-CP-JSON-DAG:             "%9:sub0": 3
 # CHECK-CP-JSON-DAG:             "%9:sub1": 4
 # CHECK-CP-JSON-DAG:             "%10": 9
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 21
 # CHECK-CP-JSON-DAG:             "%23": 18
 # CHECK-CP-JSON-DAG:             "%25": 7
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%33": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%35:sreg_64 = REG_SEQUENCE %33, %subreg.sub0, %34, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 19
 # CHECK-CP-JSON-DAG:             "%8:sub0": 10
 # CHECK-CP-JSON-DAG:             "%8:sub1": 11
 # CHECK-CP-JSON-DAG:             "%9:sub0": 2
 # CHECK-CP-JSON-DAG:             "%9:sub1": 3
 # CHECK-CP-JSON-DAG:             "%10": 8
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 20
 # CHECK-CP-JSON-DAG:             "%23": 17
 # CHECK-CP-JSON-DAG:             "%25": 6
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%33": 0
 # CHECK-CP-JSON-DAG:             "%34": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%36:sreg_64 = nsw S_LSHL_B64 %35, 2, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 18
 # CHECK-CP-JSON-DAG:             "%8:sub0": 9
 # CHECK-CP-JSON-DAG:             "%8:sub1": 10
 # CHECK-CP-JSON-DAG:             "%9:sub0": 1
 # CHECK-CP-JSON-DAG:             "%9:sub1": 2
 # CHECK-CP-JSON-DAG:             "%10": 7
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 19
 # CHECK-CP-JSON-DAG:             "%23": 16
 # CHECK-CP-JSON-DAG:             "%25": 5
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%35": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%37:vgpr_32, %38:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %9.sub0, %36.sub0, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 17
 # CHECK-CP-JSON-DAG:             "%8:sub0": 8
 # CHECK-CP-JSON-DAG:             "%8:sub1": 9
 # CHECK-CP-JSON-DAG:             "%9:sub0": 0
 # CHECK-CP-JSON-DAG:             "%9:sub1": 1
 # CHECK-CP-JSON-DAG:             "%10": 6
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 18
 # CHECK-CP-JSON-DAG:             "%23": 15
 # CHECK-CP-JSON-DAG:             "%25": 4
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 0
 # CHECK-CP-JSON-DAG:             "%36:sub1": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%39:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %9.sub1, %38, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 16
 # CHECK-CP-JSON-DAG:             "%8:sub0": 7
 # CHECK-CP-JSON-DAG:             "%8:sub1": 8
 # CHECK-CP-JSON-DAG:             "%9:sub0": 51
 # CHECK-CP-JSON-DAG:             "%9:sub1": 0
 # CHECK-CP-JSON-DAG:             "%10": 5
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 17
 # CHECK-CP-JSON-DAG:             "%23": 14
 # CHECK-CP-JSON-DAG:             "%25": 3
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 7
 # CHECK-CP-JSON-DAG:             "%36:sub1": 0
 # CHECK-CP-JSON-DAG:             "%37": 1
 # CHECK-CP-JSON-DAG:             "%38": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%40:vreg_64 = REG_SEQUENCE %37, %subreg.sub0, %39, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 15
 # CHECK-CP-JSON-DAG:             "%8:sub0": 6
 # CHECK-CP-JSON-DAG:             "%8:sub1": 7
 # CHECK-CP-JSON-DAG:             "%9:sub0": 50
 # CHECK-CP-JSON-DAG:             "%9:sub1": 51
 # CHECK-CP-JSON-DAG:             "%10": 4
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 16
 # CHECK-CP-JSON-DAG:             "%23": 13
 # CHECK-CP-JSON-DAG:             "%25": 2
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 6
 # CHECK-CP-JSON-DAG:             "%36:sub1": 7
 # CHECK-CP-JSON-DAG:             "%37": 0
 # CHECK-CP-JSON-DAG:             "%39": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%41:vgpr_32 = GLOBAL_LOAD_DWORD %40, 0, 0, implicit $exec :: (load (s32) from %ir.gep1, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 14
 # CHECK-CP-JSON-DAG:             "%8:sub0": 5
 # CHECK-CP-JSON-DAG:             "%8:sub1": 6
 # CHECK-CP-JSON-DAG:             "%9:sub0": 49
 # CHECK-CP-JSON-DAG:             "%9:sub1": 50
 # CHECK-CP-JSON-DAG:             "%10": 3
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 15
 # CHECK-CP-JSON-DAG:             "%23": 12
 # CHECK-CP-JSON-DAG:             "%25": 1
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 5
 # CHECK-CP-JSON-DAG:             "%36:sub1": 6
 # CHECK-CP-JSON-DAG:             "%40": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%28:vgpr_32 = V_ADD_U32_e64 %25, %41, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 13
 # CHECK-CP-JSON-DAG:             "%8:sub0": 4
 # CHECK-CP-JSON-DAG:             "%8:sub1": 5
 # CHECK-CP-JSON-DAG:             "%9:sub0": 48
 # CHECK-CP-JSON-DAG:             "%9:sub1": 49
 # CHECK-CP-JSON-DAG:             "%10": 2
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 14
 # CHECK-CP-JSON-DAG:             "%23": 11
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 4
 # CHECK-CP-JSON-DAG:             "%36:sub1": 5
 # CHECK-CP-JSON-DAG:             "%41": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%30:vgpr_32 = V_MUL_LO_U32_e64 %41, %25, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 12
 # CHECK-CP-JSON-DAG:             "%8:sub0": 3
 # CHECK-CP-JSON-DAG:             "%8:sub1": 4
 # CHECK-CP-JSON-DAG:             "%9:sub0": 47
 # CHECK-CP-JSON-DAG:             "%9:sub1": 48
 # CHECK-CP-JSON-DAG:             "%10": 1
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 13
 # CHECK-CP-JSON-DAG:             "%23": 10
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 16
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 3
 # CHECK-CP-JSON-DAG:             "%36:sub1": 4
 # CHECK-CP-JSON-DAG:             "%41": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "GLOBAL_STORE_SHORT_D16_HI %10, %30, 2, 0, implicit $exec :: (store (s16) into %ir.p1 + 2, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 11
 # CHECK-CP-JSON-DAG:             "%8:sub0": 2
 # CHECK-CP-JSON-DAG:             "%8:sub1": 3
 # CHECK-CP-JSON-DAG:             "%9:sub0": 46
 # CHECK-CP-JSON-DAG:             "%9:sub1": 47
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 12
 # CHECK-CP-JSON-DAG:             "%23": 9
 # CHECK-CP-JSON-DAG:             "%25": 8
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 15
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 0
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 2
 # CHECK-CP-JSON-DAG:             "%36:sub1": 3
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "GLOBAL_STORE_SHORT %10, %30, 0, 0, implicit $exec :: (store (s16) into %ir.p1, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 10
 # CHECK-CP-JSON-DAG:             "%8:sub0": 1
 # CHECK-CP-JSON-DAG:             "%8:sub1": 2
 # CHECK-CP-JSON-DAG:             "%9:sub0": 45
 # CHECK-CP-JSON-DAG:             "%9:sub1": 46
 # CHECK-CP-JSON-DAG:             "%10": 0
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 11
 # CHECK-CP-JSON-DAG:             "%23": 8
 # CHECK-CP-JSON-DAG:             "%25": 7
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 14
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 0
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 1
 # CHECK-CP-JSON-DAG:             "%36:sub1": 2
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%42:vgpr_32, %43:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 %8.sub0, %36.sub0, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 9
 # CHECK-CP-JSON-DAG:             "%8:sub0": 0
 # CHECK-CP-JSON-DAG:             "%8:sub1": 1
 # CHECK-CP-JSON-DAG:             "%9:sub0": 44
 # CHECK-CP-JSON-DAG:             "%9:sub1": 45
 # CHECK-CP-JSON-DAG:             "%10": 50
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 10
 # CHECK-CP-JSON-DAG:             "%23": 7
 # CHECK-CP-JSON-DAG:             "%25": 6
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 13
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 13
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub0": 0
 # CHECK-CP-JSON-DAG:             "%36:sub1": 1
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%44:vgpr_32, dead $sgpr_null = V_ADDC_U32_e64 %36.sub1, %8.sub1, %43, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 8
 # CHECK-CP-JSON-DAG:             "%8:sub0": 51
 # CHECK-CP-JSON-DAG:             "%8:sub1": 0
 # CHECK-CP-JSON-DAG:             "%9:sub0": 43
 # CHECK-CP-JSON-DAG:             "%9:sub1": 44
 # CHECK-CP-JSON-DAG:             "%10": 49
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 9
 # CHECK-CP-JSON-DAG:             "%23": 6
 # CHECK-CP-JSON-DAG:             "%25": 5
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 12
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 12
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%36:sub1": 0
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%42": 1
 # CHECK-CP-JSON-DAG:             "%43": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%45:vreg_64 = REG_SEQUENCE %42, %subreg.sub0, %44, %subreg.sub1",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 7
 # CHECK-CP-JSON-DAG:             "%8:sub0": 50
 # CHECK-CP-JSON-DAG:             "%8:sub1": 51
 # CHECK-CP-JSON-DAG:             "%9:sub0": 42
 # CHECK-CP-JSON-DAG:             "%9:sub1": 43
 # CHECK-CP-JSON-DAG:             "%10": 48
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 8
 # CHECK-CP-JSON-DAG:             "%23": 5
 # CHECK-CP-JSON-DAG:             "%25": 4
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 11
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 11
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%42": 0
 # CHECK-CP-JSON-DAG:             "%44": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%46:vgpr_32 = GLOBAL_LOAD_USHORT %45, 0, 0, implicit $exec :: (load (s16) from %ir.gep2, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 6
 # CHECK-CP-JSON-DAG:             "%8:sub0": 49
 # CHECK-CP-JSON-DAG:             "%8:sub1": 50
 # CHECK-CP-JSON-DAG:             "%9:sub0": 41
 # CHECK-CP-JSON-DAG:             "%9:sub1": 42
 # CHECK-CP-JSON-DAG:             "%10": 47
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 7
 # CHECK-CP-JSON-DAG:             "%23": 4
 # CHECK-CP-JSON-DAG:             "%25": 3
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 10
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 10
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%45": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%47:vgpr_32 = GLOBAL_LOAD_USHORT %45, 2, 0, implicit $exec :: (load (s16) from %ir.gep2 + 2, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 5
 # CHECK-CP-JSON-DAG:             "%8:sub0": 48
 # CHECK-CP-JSON-DAG:             "%8:sub1": 49
 # CHECK-CP-JSON-DAG:             "%9:sub0": 40
 # CHECK-CP-JSON-DAG:             "%9:sub1": 41
 # CHECK-CP-JSON-DAG:             "%10": 46
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 6
 # CHECK-CP-JSON-DAG:             "%23": 3
 # CHECK-CP-JSON-DAG:             "%25": 2
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 9
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 9
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%45": 0
 # CHECK-CP-JSON-DAG:             "%46": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%48:vgpr_32 = V_LSHL_OR_B32_e64 %47, 16, %46, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 4
 # CHECK-CP-JSON-DAG:             "%8:sub0": 47
 # CHECK-CP-JSON-DAG:             "%8:sub1": 48
 # CHECK-CP-JSON-DAG:             "%9:sub0": 39
 # CHECK-CP-JSON-DAG:             "%9:sub1": 40
 # CHECK-CP-JSON-DAG:             "%10": 45
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 5
 # CHECK-CP-JSON-DAG:             "%23": 2
 # CHECK-CP-JSON-DAG:             "%25": 1
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 8
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 8
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%46": 0
 # CHECK-CP-JSON-DAG:             "%47": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%26:sreg_32 = S_ADD_I32 %25, 1, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 3
 # CHECK-CP-JSON-DAG:             "%8:sub0": 46
 # CHECK-CP-JSON-DAG:             "%8:sub1": 47
 # CHECK-CP-JSON-DAG:             "%9:sub0": 38
 # CHECK-CP-JSON-DAG:             "%9:sub1": 39
 # CHECK-CP-JSON-DAG:             "%10": 44
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 4
 # CHECK-CP-JSON-DAG:             "%23": 1
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 7
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 7
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%48": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%24:sreg_32 = S_ADD_I32 %23, -1, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 2
 # CHECK-CP-JSON-DAG:             "%8:sub0": 45
 # CHECK-CP-JSON-DAG:             "%8:sub1": 46
 # CHECK-CP-JSON-DAG:             "%9:sub0": 37
 # CHECK-CP-JSON-DAG:             "%9:sub1": 38
 # CHECK-CP-JSON-DAG:             "%10": 43
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 3
 # CHECK-CP-JSON-DAG:             "%23": 0
 # CHECK-CP-JSON-DAG:             "%25": 2
 # CHECK-CP-JSON-DAG:             "%26": 4
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 6
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 6
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%48": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%32:vgpr_32 = V_ADD_U32_e64 %23, %48, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 1
 # CHECK-CP-JSON-DAG:             "%8:sub0": 44
 # CHECK-CP-JSON-DAG:             "%8:sub1": 45
 # CHECK-CP-JSON-DAG:             "%9:sub0": 36
 # CHECK-CP-JSON-DAG:             "%9:sub1": 37
 # CHECK-CP-JSON-DAG:             "%10": 42
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 2
 # CHECK-CP-JSON-DAG:             "%23": 0
 # CHECK-CP-JSON-DAG:             "%24": 5
 # CHECK-CP-JSON-DAG:             "%25": 1
 # CHECK-CP-JSON-DAG:             "%26": 3
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 5
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 5
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%48": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%49:sreg_32 = V_CMP_GE_U32_e64 %25, %1, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 0
 # CHECK-CP-JSON-DAG:             "%8:sub0": 43
 # CHECK-CP-JSON-DAG:             "%8:sub1": 44
 # CHECK-CP-JSON-DAG:             "%9:sub0": 35
 # CHECK-CP-JSON-DAG:             "%9:sub1": 36
 # CHECK-CP-JSON-DAG:             "%10": 41
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 1
 # CHECK-CP-JSON-DAG:             "%24": 4
 # CHECK-CP-JSON-DAG:             "%25": 0
 # CHECK-CP-JSON-DAG:             "%26": 2
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 4
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 4
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%32": 4
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%22:sreg_32 = SI_IF_BREAK %49, %21, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 51
 # CHECK-CP-JSON-DAG:             "%8:sub0": 42
 # CHECK-CP-JSON-DAG:             "%8:sub1": 43
 # CHECK-CP-JSON-DAG:             "%9:sub0": 34
 # CHECK-CP-JSON-DAG:             "%9:sub1": 35
 # CHECK-CP-JSON-DAG:             "%10": 40
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%21": 0
 # CHECK-CP-JSON-DAG:             "%24": 3
 # CHECK-CP-JSON-DAG:             "%26": 1
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 3
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 3
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%32": 3
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%49": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%50:vgpr_32 = COPY %26, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 50
 # CHECK-CP-JSON-DAG:             "%8:sub0": 41
 # CHECK-CP-JSON-DAG:             "%8:sub1": 42
 # CHECK-CP-JSON-DAG:             "%9:sub0": 33
 # CHECK-CP-JSON-DAG:             "%9:sub1": 34
 # CHECK-CP-JSON-DAG:             "%10": 39
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%22": 1
 # CHECK-CP-JSON-DAG:             "%24": 2
 # CHECK-CP-JSON-DAG:             "%26": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 2
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 2
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%32": 2
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "SI_LOOP %22, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 49
 # CHECK-CP-JSON-DAG:             "%8:sub0": 40
 # CHECK-CP-JSON-DAG:             "%8:sub1": 41
 # CHECK-CP-JSON-DAG:             "%9:sub0": 32
 # CHECK-CP-JSON-DAG:             "%9:sub1": 33
 # CHECK-CP-JSON-DAG:             "%10": 38
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%22": 0
 # CHECK-CP-JSON-DAG:             "%24": 1
 # CHECK-CP-JSON-DAG:             "%26": 1
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 1
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 1
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%32": 1
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%50": 3330
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "S_BRANCH %bb.2",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3334
 # CHECK-CP-JSON-DAG:             "%1": 48
 # CHECK-CP-JSON-DAG:             "%8:sub0": 39
 # CHECK-CP-JSON-DAG:             "%8:sub1": 40
 # CHECK-CP-JSON-DAG:             "%9:sub0": 31
 # CHECK-CP-JSON-DAG:             "%9:sub1": 32
 # CHECK-CP-JSON-DAG:             "%10": 37
 # CHECK-CP-JSON-DAG:             "%17": 4107
 # CHECK-CP-JSON-DAG:             "%22": 0
 # CHECK-CP-JSON-DAG:             "%24": 0
 # CHECK-CP-JSON-DAG:             "%26": 0
 # CHECK-CP-JSON-DAG:             "%27": 3332
 # CHECK-CP-JSON-DAG:             "%28": 0
 # CHECK-CP-JSON-DAG:             "%29": 4105
 # CHECK-CP-JSON-DAG:             "%30": 0
 # CHECK-CP-JSON-DAG:             "%31": 3334
 # CHECK-CP-JSON-DAG:             "%32": 0
 # CHECK-CP-JSON-DAG:             "%41": 4106
 # CHECK-CP-JSON-DAG:             "%50": 3330
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4107
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:      ],
 # CHECK-CP-JSON-NEXT:      "bb.2": [
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "SI_END_CF %22, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 5
 # CHECK-CP-JSON-DAG:             "%8": 4
 # CHECK-CP-JSON-DAG:             "%17": 16
 # CHECK-CP-JSON-DAG:             "%22": 0
 # CHECK-CP-JSON-DAG:             "%27": 3
 # CHECK-CP-JSON-DAG:             "%29": 14
 # CHECK-CP-JSON-DAG:             "%30": 2
 # CHECK-CP-JSON-DAG:             "%31": 5
 # CHECK-CP-JSON-DAG:             "%41": 15
 # CHECK-CP-JSON-DAG:             "%50": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 16
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 16
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%51:vgpr_32 = V_ADD_U32_e64 -2, %50, 0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 4
 # CHECK-CP-JSON-DAG:             "%8": 3
 # CHECK-CP-JSON-DAG:             "%17": 15
 # CHECK-CP-JSON-DAG:             "%27": 2
 # CHECK-CP-JSON-DAG:             "%29": 13
 # CHECK-CP-JSON-DAG:             "%30": 1
 # CHECK-CP-JSON-DAG:             "%31": 4
 # CHECK-CP-JSON-DAG:             "%41": 14
 # CHECK-CP-JSON-DAG:             "%50": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 15
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 15
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%52:vgpr_32 = V_MUL_LO_U32_e64 %30, %51, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 3
 # CHECK-CP-JSON-DAG:             "%8": 2
 # CHECK-CP-JSON-DAG:             "%17": 14
 # CHECK-CP-JSON-DAG:             "%27": 1
 # CHECK-CP-JSON-DAG:             "%29": 12
 # CHECK-CP-JSON-DAG:             "%30": 0
 # CHECK-CP-JSON-DAG:             "%31": 3
 # CHECK-CP-JSON-DAG:             "%41": 13
 # CHECK-CP-JSON-DAG:             "%51": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 14
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 14
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%53:vgpr_32 = V_MUL_LO_U32_e64 100, %27, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 2
 # CHECK-CP-JSON-DAG:             "%8": 1
 # CHECK-CP-JSON-DAG:             "%17": 13
 # CHECK-CP-JSON-DAG:             "%27": 0
 # CHECK-CP-JSON-DAG:             "%29": 11
 # CHECK-CP-JSON-DAG:             "%31": 2
 # CHECK-CP-JSON-DAG:             "%41": 12
 # CHECK-CP-JSON-DAG:             "%52": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 13
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 13
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "GLOBAL_STORE_DWORD %8, %53, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 1
 # CHECK-CP-JSON-DAG:             "%8": 0
 # CHECK-CP-JSON-DAG:             "%17": 12
 # CHECK-CP-JSON-DAG:             "%29": 10
 # CHECK-CP-JSON-DAG:             "%31": 1
 # CHECK-CP-JSON-DAG:             "%41": 11
 # CHECK-CP-JSON-DAG:             "%52": 1
 # CHECK-CP-JSON-DAG:             "%53": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 12
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 12
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%54:sreg_32 = S_MOV_B32 0",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 0
 # CHECK-CP-JSON-DAG:             "%8": 8
 # CHECK-CP-JSON-DAG:             "%17": 11
 # CHECK-CP-JSON-DAG:             "%29": 9
 # CHECK-CP-JSON-DAG:             "%31": 0
 # CHECK-CP-JSON-DAG:             "%41": 10
 # CHECK-CP-JSON-DAG:             "%52": 0
 # CHECK-CP-JSON-DAG:             "%53": 10
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 11
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 11
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:      ],
 # CHECK-CP-JSON-NEXT:      "bb.3": [
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%55:sreg_32 = PHI %54, %bb.2, %56, %bb.3",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 1
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 5
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%57:sreg_32 = PHI %54, %bb.2, %58, %bb.3",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 1
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 5
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%55": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%59:vgpr_32 = PHI %31, %bb.2, %52, %bb.3",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 1
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 5
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%55": 2
 # CHECK-CP-JSON-DAG:             "%57": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%58:sreg_32 = S_ADD_I32 %57, 2, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 1
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 5
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%55": 2
 # CHECK-CP-JSON-DAG:             "%57": 0
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%60:sreg_32 = V_CMP_GE_U32_e64 %58, %0, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 0
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 4
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%55": 1
 # CHECK-CP-JSON-DAG:             "%58": 0
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%56:sreg_32 = SI_IF_BREAK %60, %55, implicit-def dead $scc",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 11
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 3
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%55": 0
 # CHECK-CP-JSON-DAG:             "%58": 1
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON-DAG:             "%60": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%61:vgpr_32 = COPY %58, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 10
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 2
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%56": 1
 # CHECK-CP-JSON-DAG:             "%58": 0
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "SI_LOOP %56, %bb.3, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 9
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 1
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%56": 0
 # CHECK-CP-JSON-DAG:             "%58": 1
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON-DAG:             "%61": 771
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "S_BRANCH %bb.4",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%0": 8
 # CHECK-CP-JSON-DAG:             "%8": 770
 # CHECK-CP-JSON-DAG:             "%17": 773
 # CHECK-CP-JSON-DAG:             "%29": 771
 # CHECK-CP-JSON-DAG:             "%41": 772
 # CHECK-CP-JSON-DAG:             "%52": 0
 # CHECK-CP-JSON-DAG:             "%53": 772
 # CHECK-CP-JSON-DAG:             "%56": 0
 # CHECK-CP-JSON-DAG:             "%58": 0
 # CHECK-CP-JSON-DAG:             "%59": 770
 # CHECK-CP-JSON-DAG:             "%61": 771
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 773
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:      ],
 # CHECK-CP-JSON-NEXT:      "bb.4": [
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "SI_END_CF %56, implicit-def dead $exec, implicit-def dead $scc, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%8": 1
 # CHECK-CP-JSON-DAG:             "%17": 4
 # CHECK-CP-JSON-DAG:             "%29": 2
 # CHECK-CP-JSON-DAG:             "%41": 3
 # CHECK-CP-JSON-DAG:             "%53": 3
 # CHECK-CP-JSON-DAG:             "%56": 0
 # CHECK-CP-JSON-DAG:             "%59": 1
 # CHECK-CP-JSON-DAG:             "%61": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 4
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "GLOBAL_STORE_DWORD %8, %59, 0, 0, implicit $exec :: (store (s32) into %ir.p3, addrspace 1)",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%8": 0
 # CHECK-CP-JSON-DAG:             "%17": 3
 # CHECK-CP-JSON-DAG:             "%29": 1
 # CHECK-CP-JSON-DAG:             "%41": 2
 # CHECK-CP-JSON-DAG:             "%53": 2
 # CHECK-CP-JSON-DAG:             "%59": 0
 # CHECK-CP-JSON-DAG:             "%61": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 3
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 3
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%62:vgpr_32 = V_ADD3_U32_e64 %59, %61, %29, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%17": 2
 # CHECK-CP-JSON-DAG:             "%29": 0
 # CHECK-CP-JSON-DAG:             "%41": 1
 # CHECK-CP-JSON-DAG:             "%53": 1
 # CHECK-CP-JSON-DAG:             "%59": 0
 # CHECK-CP-JSON-DAG:             "%61": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 2
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 2
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%63:vgpr_32 = V_ADD3_U32_e64 %62, %53, %41, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%17": 1
 # CHECK-CP-JSON-DAG:             "%41": 0
 # CHECK-CP-JSON-DAG:             "%53": 0
 # CHECK-CP-JSON-DAG:             "%62": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 1
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 1
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%64:vgpr_32 = V_ADD3_U32_e64 %17, %63, 100, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%17": 0
 # CHECK-CP-JSON-DAG:             "%63": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%17",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "%65:sreg_32_xm0 = V_READFIRSTLANE_B32 %64, implicit $exec",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%64": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%64",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%64",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "$sgpr0 = COPY %65",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {
 # CHECK-CP-JSON-DAG:             "%65": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest": {
 # CHECK-CP-JSON-DAG:             "register": "%65",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               },
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {
 # CHECK-CP-JSON-DAG:             "register": "%65",
 # CHECK-CP-JSON-DAG:             "use": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "use-mi": "{{[^"]+}}",
 # CHECK-CP-JSON-DAG:             "distance": 0
 # CHECK-CP-JSON:               }
 # CHECK-CP-JSON-NEXT:        },
 # CHECK-CP-JSON-NEXT:        {
 # CHECK-CP-JSON-NEXT:          "instr": "SI_RETURN_TO_EPILOG killed $sgpr0",
 # CHECK-CP-JSON-NEXT:          "id": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "head-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "tail-len": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:          "distances": {},
 # CHECK-CP-JSON-NEXT:          "furthest": {},
 # CHECK-CP-JSON-NEXT:          "furthest-subreg": {}
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:      ]
 # CHECK-CP-JSON-NEXT:    },
 # CHECK-CP-JSON-NEXT:    "distance-from-def-to-closest-use": {
 # CHECK-CP-JSON-DAG:       "%0": 52,
 # CHECK-CP-JSON-DAG:       "%1": 19,
 # CHECK-CP-JSON-DAG:       "%2": 6,
 # CHECK-CP-JSON-DAG:       "%3": 5,
 # CHECK-CP-JSON-DAG:       "%4": 5,
 # CHECK-CP-JSON-DAG:       "%5": 4,
 # CHECK-CP-JSON-DAG:       "%6": 4,
 # CHECK-CP-JSON-DAG:       "%7": 3,
 # CHECK-CP-JSON-DAG:       "%8": 12,
 # CHECK-CP-JSON-DAG:       "%9": 11,
 # CHECK-CP-JSON-DAG:       "%10": 1,
 # CHECK-CP-JSON-DAG:       "%11": 2,
 # CHECK-CP-JSON-DAG:       "%12": 1,
 # CHECK-CP-JSON-DAG:       "%13": 4,
 # CHECK-CP-JSON-DAG:       "%14": 2,
 # CHECK-CP-JSON-DAG:       "%15": 1,
 # CHECK-CP-JSON-DAG:       "%16": 1,
 # CHECK-CP-JSON-DAG:       "%17": 3,
 # CHECK-CP-JSON-DAG:       "%18": 2,
 # CHECK-CP-JSON-DAG:       "%19": 1,
 # CHECK-CP-JSON-DAG:       "%20": 0,
 # CHECK-CP-JSON-DAG:       "%21": 22,
 # CHECK-CP-JSON-DAG:       "%23": 19,
 # CHECK-CP-JSON-DAG:       "%25": 0,
 # CHECK-CP-JSON-DAG:       "%27": 3332,
 # CHECK-CP-JSON-DAG:       "%29": 4105,
 # CHECK-CP-JSON-DAG:       "%31": 3334,
 # CHECK-CP-JSON-DAG:       "%33": 1,
 # CHECK-CP-JSON-DAG:       "%34": 1,
 # CHECK-CP-JSON-DAG:       "%35": 1,
 # CHECK-CP-JSON-DAG:       "%36": 1,
 # CHECK-CP-JSON-DAG:       "%37": 2,
 # CHECK-CP-JSON-DAG:       "%38": 1,
 # CHECK-CP-JSON-DAG:       "%39": 1,
 # CHECK-CP-JSON-DAG:       "%40": 1,
 # CHECK-CP-JSON-DAG:       "%41": 1,
 # CHECK-CP-JSON-DAG:       "%28": 17,
 # CHECK-CP-JSON-DAG:       "%30": 1,
 # CHECK-CP-JSON-DAG:       "%42": 2,
 # CHECK-CP-JSON-DAG:       "%43": 1,
 # CHECK-CP-JSON-DAG:       "%44": 1,
 # CHECK-CP-JSON-DAG:       "%45": 1,
 # CHECK-CP-JSON-DAG:       "%46": 2,
 # CHECK-CP-JSON-DAG:       "%47": 1,
 # CHECK-CP-JSON-DAG:       "%48": 3,
 # CHECK-CP-JSON-DAG:       "%26": 5,
 # CHECK-CP-JSON-DAG:       "%24": 6,
 # CHECK-CP-JSON-DAG:       "%32": 5,
 # CHECK-CP-JSON-DAG:       "%49": 1,
 # CHECK-CP-JSON-DAG:       "%22": 2,
 # CHECK-CP-JSON-DAG:       "%50": 3330,
 # CHECK-CP-JSON-DAG:       "%51": 1,
 # CHECK-CP-JSON-DAG:       "%52": 3,
 # CHECK-CP-JSON-DAG:       "%53": 1,
 # CHECK-CP-JSON-DAG:       "%54": 0,
 # CHECK-CP-JSON-DAG:       "%55": 2,
 # CHECK-CP-JSON-DAG:       "%57": 0,
 # CHECK-CP-JSON-DAG:       "%59": 770,
 # CHECK-CP-JSON-DAG:       "%58": 1,
 # CHECK-CP-JSON-DAG:       "%60": 1,
 # CHECK-CP-JSON-DAG:       "%56": 2,
 # CHECK-CP-JSON-DAG:       "%61": 771,
 # CHECK-CP-JSON-DAG:       "%62": 1,
 # CHECK-CP-JSON-DAG:       "%63": 1,
 # CHECK-CP-JSON-DAG:       "%64": 1,
 # CHECK-CP-JSON-DAG:       "%65": 1
 # CHECK-CP-JSON:         },
 # CHECK-CP-JSON-NEXT:    "paths": [
 # CHECK-CP-JSON:         ],
 # CHECK-CP-JSON-NEXT:    "metrics": {
 # CHECK-CP-JSON-NEXT:        "distance-cache": {
 # CHECK-CP-JSON-NEXT:            "hits": {{[0-9]+}},
 # CHECK-CP-JSON-NEXT:            "misses": {{[0-9]+}}
 # CHECK-CP-JSON-NEXT:        }
 # CHECK-CP-JSON-NEXT:    }
 # CHECK-CP-JSON-NEXT:  },
 # CHECK-CP-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.wall": {{[0-9.e+-]+}},
 # CHECK-CP-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.user": {{[0-9.e+-]+}},
 # CHECK-CP-JSON-DAG:   "time.amdgpu-next-use-analysis-json.json.sys": {{[0-9.e+-]+}}
 # CHECK-CP-JSON:      }