test/CodeGen/AMDGPU/optimize-exec-mask-pre-ra-alloc-failure.mir

# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1030 -start-before=machine-scheduler -stop-after=virtregrewriter,0 -o - %s | FileCheck %s

---
# If optimize-exec-mask-pre-ra over approximates live intervals (not replicating splits)
# then this triggers a register allocation failure.

# CHECK-LABEL: name: test

name:            test
alignment:       1
tracksRegLiveness: true
registers:
  - { id: 0, class: sreg_32, preferred-register: '$vcc_lo' }
  - { id: 1, class: sreg_32, preferred-register: '$vcc_lo' }
  - { id: 2, class: sreg_32_xm0_xexec, preferred-register: '$vcc_lo' }
liveins:
  - { reg: '$sgpr4_sgpr5', virtual-reg: '%3' }
machineFunctionInfo:
  isEntryFunction: true
  scratchRSrcReg:  '$sgpr100_sgpr101_sgpr102_sgpr103'
  stackPtrOffsetReg: '$sgpr32'
body:             |
  bb.0.entry:
    liveins: $vgpr0, $sgpr4_sgpr5

    %3:sgpr_64 = COPY $sgpr4_sgpr5
    %4:vgpr_32 = COPY $vgpr0
    %5:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 16, 0
    S_BITCMP1_B32 %5, 0, implicit-def $scc
    %6:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    %7:sreg_32 = S_MOV_B32 -1
    %8:sreg_64_xexec = S_LOAD_DWORDX2_IMM %3, 136, 0
    S_CBRANCH_SCC1 %bb.2, implicit undef $scc
    S_BRANCH %bb.1

  bb.1:
    %9:sreg_64_xexec = S_LOAD_DWORDX2_IMM %3, 8, 0
    %10:sgpr_128 = S_LOAD_DWORDX4_IMM %3, 24, 0
    %11:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 40, 0
    %12:sgpr_128 = S_LOAD_DWORDX4_IMM %3, 48, 0
    %13:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 64, 0
    S_BITCMP1_B32 %11, 0, implicit-def $scc
    %14:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    S_BITCMP1_B32 %13, 0, implicit-def $scc
    %15:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    S_BITCMP1_B32 %13, 8, implicit-def $scc
    %2:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    %16:sreg_64_xexec = S_LOAD_DWORDX2_IMM %3, 72, 0
    %17:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 80, 0
    S_BITCMP1_B32 %17, 0, implicit-def $scc
    %18:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    S_BITCMP1_B32 %17, 8, implicit-def $scc
    %19:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    %20:sreg_64_xexec = S_LOAD_DWORDX2_IMM %3, 88, 0
    %21:sgpr_128 = S_LOAD_DWORDX4_IMM %3, 104, 0
    %22:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 120, 0
    S_BITCMP1_B32 %22, 0, implicit-def $scc
    %23:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    %24:sreg_64_xexec = S_LOAD_DWORDX2_IMM %3, 128, 0
    %25:sreg_64 = S_MOV_B64 0
    %26:sreg_64_xexec = S_LOAD_DWORDX2_IMM %25, 0, 0
    %27:sreg_64 = S_MOV_B64_IMM_PSEUDO 4652218415073722368
    %28:vreg_64 = V_MOV_B64_PSEUDO 0, implicit $exec
    %29:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, %14, implicit $exec
    %30:sreg_64 = S_MOV_B64_IMM_PSEUDO 4358002977218854975
    undef %31.sub1:sreg_64 = S_MOV_B32 -1064252416
    %32:sreg_32 = S_OR_B32 %19, %18, implicit-def dead $scc
    undef %33.sub1:sreg_64 = S_MOV_B32 2146435072
    %34:sreg_64 = S_MOV_B64_IMM_PSEUDO 4592094252754343337
    %35:sreg_64 = S_MOV_B64_IMM_PSEUDO 4593089322246397463
    %36:sreg_64 = S_MOV_B64_IMM_PSEUDO 4593150332132823898
    %37:sreg_64 = S_MOV_B64_IMM_PSEUDO 4593971714784152002
    %38:sreg_64 = S_MOV_B64_IMM_PSEUDO 4594710915293070409
    %39:sreg_64 = S_MOV_B64_IMM_PSEUDO 4595718710613720112
    %40:sreg_64 = S_MOV_B64_IMM_PSEUDO 4597174419628462798
    %41:sreg_64 = S_MOV_B64_IMM_PSEUDO 4598818590920614106
    %42:sreg_64 = S_MOV_B64_IMM_PSEUDO 4600877379321698716
    %43:sreg_64 = S_MOV_B64_IMM_PSEUDO 4604180019048437077
    undef %44.sub1:sreg_64 = S_MOV_B32 -1075489451
    %45:sreg_64 = S_MOV_B64_IMM_PSEUDO 4609176140021203710
    undef %46.sub1:sreg_64 = S_MOV_B32 -1132807010
    %47:sreg_64 = S_MOV_B64_IMM_PSEUDO 4508818957471820556
    %48:sreg_64 = S_MOV_B64_IMM_PSEUDO 4493147761815702327
    %49:sreg_64 = S_MOV_B64_IMM_PSEUDO 4523617260404727396
    %50:sreg_64 = S_MOV_B64_IMM_PSEUDO 4537941333260232368
    %51:sreg_64 = S_MOV_B64_IMM_PSEUDO 4551452160460988270
    %52:sreg_64 = S_MOV_B64_IMM_PSEUDO 4564047942395279280
    %53:sreg_64 = S_MOV_B64_IMM_PSEUDO 4575957461383652130
    %54:sreg_64 = S_MOV_B64_IMM_PSEUDO 4586165620538933921
    %55:sreg_64 = S_MOV_B64_IMM_PSEUDO 4595172819793696017
    %56:sreg_64 = S_MOV_B64_IMM_PSEUDO 4602678819172646923
    undef %57.sub1:sreg_64 = S_MOV_B32 -1101341163
    %7:sreg_32 = IMPLICIT_DEF
    %58:sreg_32 = IMPLICIT_DEF
    %59:sreg_32 = COPY %27.sub0
    %60:vreg_64 = COPY %28
    %61:vreg_64 = COPY %28
    %62:vreg_64 = COPY %28
    %63:vreg_64 = COPY %28
    %64:vreg_64 = COPY %28
    S_BRANCH %bb.3

  bb.2:
    %65:sreg_32 = COPY $exec_lo, implicit-def $exec_lo
    %66:sreg_32 = S_AND_B32 %65, %7, implicit-def dead $scc
    $exec_lo = S_MOV_B32_term %66
    S_CBRANCH_EXECZ %bb.18, implicit $exec
    S_BRANCH %bb.5

  bb.3:
    %67:sreg_32 = S_AND_B32 $exec_lo, %6, implicit-def dead $scc
    $vcc_lo = COPY %67
    %58:sreg_32 = S_OR_B32 %58, $exec_lo, implicit-def dead $scc
    S_CBRANCH_VCCNZ %bb.7, implicit killed $vcc

  bb.4:
    %64:vreg_64 = IMPLICIT_DEF
    %63:vreg_64 = IMPLICIT_DEF
    %62:vreg_64 = IMPLICIT_DEF
    %61:vreg_64 = IMPLICIT_DEF
    %60:vreg_64 = IMPLICIT_DEF
    %28:vreg_64 = IMPLICIT_DEF
    %68:sreg_32 = S_MOV_B32 -1
    S_BRANCH %bb.9

  bb.5:
    S_CBRANCH_SCC1 %bb.18, implicit undef $scc

  bb.6:
    %69:sreg_32_xm0_xexec = S_XOR_B32 %6, -1, implicit-def dead $scc
    %70:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %3, 96, 0
    S_BITCMP1_B32 %70, 0, implicit-def $scc
    %71:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    S_BITCMP1_B32 %8.sub1, 0, implicit-def $scc
    %72:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    %73:sreg_32_xm0_xexec = S_XOR_B32 %72, -1, implicit-def dead $scc
    %74:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, %73, implicit $exec
    %75:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, %71, implicit $exec
    %76:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, %69, implicit $exec
    S_BRANCH %bb.14

  bb.7:
    %77:vreg_64 = COPY %10.sub0_sub1
    %78:vreg_64 = FLAT_LOAD_DWORDX2 %77, 0, 0, implicit $exec, implicit $flat_scr
    %79:vreg_64 = COPY %10.sub2_sub3
    %80:vreg_64 = FLAT_LOAD_DWORDX2 %79, 0, 0, implicit $exec, implicit $flat_scr
    %81:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %29, implicit $exec
    $vcc_lo = S_AND_B32 $exec_lo, %81, implicit-def dead $scc
    %82:sreg_64 = COPY %12.sub0_sub1
    S_CBRANCH_VCCNZ %bb.10, implicit killed $vcc
    S_BRANCH %bb.8

  bb.8:
    %82:sreg_64 = S_MOV_B64 0
    S_BRANCH %bb.10

  bb.9:
    %83:sreg_32 = S_XOR_B32 %68, -1, implicit-def dead $scc
    %84:sreg_32 = S_AND_B32 $exec_lo, %58, implicit-def $scc
    %59:sreg_32 = S_OR_B32 %84, %59, implicit-def $scc
    %4:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
    %85:sreg_32 = S_ANDN2_B32 %7, $exec_lo, implicit-def dead $scc
    %86:sreg_32 = S_AND_B32 %83, $exec_lo, implicit-def dead $scc
    %7:sreg_32 = S_OR_B32 %85, %86, implicit-def dead $scc
    $exec_lo = S_ANDN2_B32_term $exec_lo, %59, implicit-def $scc
    S_CBRANCH_EXECNZ %bb.3, implicit $exec
    S_BRANCH %bb.19

  bb.10:
    %87:sreg_64_xexec = S_LOAD_DWORDX2_IMM %26, 16, 0
    undef %88.sub1:sreg_64 = S_AND_B32 %87.sub1, 2147483647, implicit-def dead $scc
    %89:vgpr_32 = nofpexcept V_FREXP_EXP_I32_F64_e64 2, %87, 0, 0, implicit $mode, implicit $exec
    %90:vreg_64 = V_CVT_F64_I32_e32 %89, implicit $mode, implicit $exec
    %91:vreg_64 = nofpexcept V_FMA_F64_e64 0, 0, 0, %30, 0, %87, 0, 0, implicit $mode, implicit $exec
    %0:sreg_32 = nofpexcept V_CMP_LT_F64_e64 0, %27, 0, %91, 0, implicit $mode, implicit $exec
    %31.sub0:sreg_64 = COPY %27.sub0
    %1:sreg_32 = nofpexcept V_CMP_GT_F64_e64 0, %31, 0, %90, 0, implicit $mode, implicit $exec
    S_CBRANCH_SCC0 %bb.12, implicit undef $scc

  bb.11:
    %92:sreg_32_xm0_xexec = S_OR_B32 %1, %0, implicit-def dead $scc
    undef %93.sub1:vreg_64 = V_CNDMASK_B32_e64 0, %21.sub3, 0, 0, %92, implicit $exec
    %93.sub0:vreg_64 = V_CNDMASK_B32_e64 0, %21.sub2, 0, 0, %92, implicit $exec
    S_BRANCH %bb.13

  bb.12:
    %93:vreg_64 = V_MOV_B64_PSEUDO 0, implicit $exec

  bb.13:
    %88.sub0:sreg_64 = COPY %87.sub0
    %94:vgpr_32 = COPY %16.sub0
    %95:vgpr_32 = V_CNDMASK_B32_e64 0, %82.sub0, 0, %94, %2, implicit $exec
    %96:vgpr_32 = COPY %16.sub1
    %97:vgpr_32 = V_CNDMASK_B32_e64 0, %82.sub1, 0, %96, %2, implicit $exec
    %98:vgpr_32 = V_CNDMASK_B32_e64 0, %97, 0, 2146959360, %18, implicit $exec
    dead %99:sreg_32 = S_AND_B32 %32, $exec_lo, implicit-def $scc
    %100:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit killed $scc
    undef %101.sub0:vreg_64 = V_CNDMASK_B32_e64 0, %95, 0, 0, %100, implicit $exec
    %101.sub1:vreg_64 = V_CNDMASK_B32_e64 0, %98, 0, 0, %19, implicit $exec
    %64:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %64, 0, %101, 0, 0, implicit $mode, implicit $exec
    %63:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %63, 0, %21.sub0_sub1, 0, 0, implicit $mode, implicit $exec
    %62:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %62, 0, %12.sub2_sub3, 0, 0, implicit $mode, implicit $exec
    %33.sub0:sreg_64 = COPY %27.sub0
    %102:sreg_32_xm0_xexec = nofpexcept V_CMP_EQ_F64_e64 0, %33, 0, %88, 0, implicit $mode, implicit $exec
    %103:sreg_32 = nofpexcept V_CMP_EQ_F64_e64 0, 0, 0, %87, 0, implicit $mode, implicit $exec
    %104:sreg_32 = S_XOR_B32 %15, %103, implicit-def dead $scc
    dead %105:sreg_32 = S_AND_B32 %104, $exec_lo, implicit-def $scc
    %106:sgpr_32 = S_CSELECT_B32 0, 2146435072, implicit killed $scc
    %107:vgpr_32 = V_CNDMASK_B32_e64 0, %93.sub1, 0, %106, %102, implicit $exec
    undef %108.sub1:vreg_64 = V_CNDMASK_B32_e64 0, %107, 0, 0, %23, implicit $exec
    %109:sreg_32_xm0_xexec = S_OR_B32 %23, %102, implicit-def dead $scc
    %108.sub0:vreg_64 = V_CNDMASK_B32_e64 0, %93.sub0, 0, 0, %109, implicit $exec
    %61:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %61, 0, %108, 0, 0, implicit $mode, implicit $exec
    %110:vreg_64 = nofpexcept V_FMA_F64_e64 0, %78, 0, %35, 0, %34, 0, 0, implicit $mode, implicit $exec
    %111:vreg_64 = nofpexcept V_FMA_F64_e64 0, %110, 0, 0, 0, %36, 0, 0, implicit $mode, implicit $exec
    %112:vreg_64 = nofpexcept V_FMA_F64_e64 0, %111, 0, 0, 0, %37, 0, 0, implicit $mode, implicit $exec
    %113:vreg_64 = nofpexcept V_FMA_F64_e64 0, %112, 0, 0, 0, %38, 0, 0, implicit $mode, implicit $exec
    %114:vreg_64 = nofpexcept V_FMA_F64_e64 0, %113, 0, 0, 0, %39, 0, 0, implicit $mode, implicit $exec
    %115:vreg_64 = nofpexcept V_FMA_F64_e64 0, %114, 0, 0, 0, %40, 0, 0, implicit $mode, implicit $exec
    %116:vreg_64 = nofpexcept V_FMA_F64_e64 0, %115, 0, 0, 0, %41, 0, 0, implicit $mode, implicit $exec
    %117:vreg_64 = nofpexcept V_FMA_F64_e64 0, %116, 0, 0, 0, %42, 0, 0, implicit $mode, implicit $exec
    %118:vreg_64 = nofpexcept V_ADD_F64_e64 0, %117, 0, %43, 0, 0, implicit $mode, implicit $exec
    %44.sub0:sreg_64 = COPY %43.sub0
    %119:vreg_64 = nofpexcept V_ADD_F64_e64 0, %118, 0, %44, 0, 0, implicit $mode, implicit $exec
    %120:vreg_64 = nofpexcept V_ADD_F64_e64 0, %24, 0, %119, 0, 0, implicit $mode, implicit $exec
    %121:vreg_64 = nofpexcept V_MUL_F64_e64 0, %9, 0, %120, 0, 0, implicit $mode, implicit $exec
    %122:vreg_64 = nofpexcept V_MUL_F64_e64 0, %121, 0, %45, 0, 0, implicit $mode, implicit $exec
    %46.sub0:sreg_64 = COPY %30.sub0
    %123:vreg_64 = nofpexcept V_FMA_F64_e64 0, %122, 0, %46, 0, %20, 0, 0, implicit $mode, implicit $exec
    %124:vreg_64 = nofpexcept V_FMA_F64_e64 0, %123, 0, %48, 0, %47, 0, 0, implicit $mode, implicit $exec
    %125:vreg_64 = nofpexcept V_FMA_F64_e64 0, %124, 0, 0, 0, %49, 0, 0, implicit $mode, implicit $exec
    %126:vreg_64 = nofpexcept V_FMA_F64_e64 0, %125, 0, 0, 0, %50, 0, 0, implicit $mode, implicit $exec
    %127:vreg_64 = nofpexcept V_FMA_F64_e64 0, %126, 0, 0, 0, %51, 0, 0, implicit $mode, implicit $exec
    %128:vreg_64 = nofpexcept V_FMA_F64_e64 0, %127, 0, 0, 0, %52, 0, 0, implicit $mode, implicit $exec
    %129:vreg_64 = nofpexcept V_FMA_F64_e64 0, %128, 0, 0, 0, %53, 0, 0, implicit $mode, implicit $exec
    %130:vreg_64 = nofpexcept V_FMA_F64_e64 0, %129, 0, 0, 0, %54, 0, 0, implicit $mode, implicit $exec
    %131:vreg_64 = nofpexcept V_FMA_F64_e64 0, %130, 0, 0, 0, %55, 0, 0, implicit $mode, implicit $exec
    %132:vreg_64 = nofpexcept V_FMA_F64_e64 0, %131, 0, 0, 0, %56, 0, 0, implicit $mode, implicit $exec
    %60:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %60, 0, %132, 0, 0, implicit $mode, implicit $exec
    %133:vreg_64 = nofpexcept V_FMA_F64_e64 0, %80, 0, 0, 0, %36, 0, 0, implicit $mode, implicit $exec
    %134:vreg_64 = nofpexcept V_FMA_F64_e64 0, %133, 0, 0, 0, %37, 0, 0, implicit $mode, implicit $exec
    %135:vreg_64 = nofpexcept V_FMA_F64_e64 0, %134, 0, 0, 0, %38, 0, 0, implicit $mode, implicit $exec
    %136:vreg_64 = nofpexcept V_FMA_F64_e64 0, %135, 0, 0, 0, %39, 0, 0, implicit $mode, implicit $exec
    %137:vreg_64 = nofpexcept V_FMA_F64_e64 0, %136, 0, 0, 0, %40, 0, 0, implicit $mode, implicit $exec
    %138:vreg_64 = nofpexcept V_FMA_F64_e64 0, %137, 0, 0, 0, %41, 0, 0, implicit $mode, implicit $exec
    %139:vreg_64 = nofpexcept V_FMA_F64_e64 0, %138, 0, 0, 0, %42, 0, 0, implicit $mode, implicit $exec
    %140:vreg_64 = nofpexcept V_MUL_F64_e64 0, %139, 0, %45, 0, 0, implicit $mode, implicit $exec
    %57.sub0:sreg_64 = COPY %48.sub0
    %141:vreg_64 = nofpexcept V_FMA_F64_e64 0, %140, 0, %57, 0, %47, 0, 0, implicit $mode, implicit $exec
    %142:vreg_64 = nofpexcept V_FMA_F64_e64 0, %141, 0, 0, 0, %49, 0, 0, implicit $mode, implicit $exec
    %143:vreg_64 = nofpexcept V_FMA_F64_e64 0, %142, 0, 0, 0, %50, 0, 0, implicit $mode, implicit $exec
    %144:vreg_64 = nofpexcept V_FMA_F64_e64 0, %143, 0, 0, 0, %51, 0, 0, implicit $mode, implicit $exec
    %145:vreg_64 = nofpexcept V_FMA_F64_e64 0, %144, 0, 0, 0, %52, 0, 0, implicit $mode, implicit $exec
    %146:vreg_64 = nofpexcept V_FMA_F64_e64 0, %145, 0, 0, 0, %53, 0, 0, implicit $mode, implicit $exec
    %147:vreg_64 = nofpexcept V_FMA_F64_e64 0, %146, 0, 0, 0, %54, 0, 0, implicit $mode, implicit $exec
    %148:vreg_64 = nofpexcept V_FMA_F64_e64 0, %147, 0, 0, 0, %55, 0, 0, implicit $mode, implicit $exec
    %149:vreg_64 = nofpexcept V_FMA_F64_e64 0, %148, 0, 0, 0, %56, 0, 0, implicit $mode, implicit $exec
    %28:vreg_64 = contract nofpexcept V_ADD_F64_e64 0, %28, 0, %149, 0, 0, implicit $mode, implicit $exec
    %58:sreg_32 = V_CMP_LE_U32_e64 %8.sub0, %4, implicit $exec
    %68:sreg_32 = S_MOV_B32 0
    S_BRANCH %bb.9

  bb.14:
    S_CBRANCH_SCC1 %bb.17, implicit undef $scc
    S_BRANCH %bb.15

  bb.15:
    %150:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %74, implicit $exec
    $vcc_lo = S_AND_B32 $exec_lo, %150, implicit-def dead $scc
    S_CBRANCH_VCCNZ %bb.17, implicit killed $vcc
    S_BRANCH %bb.16

  bb.16:
    %151:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %75, implicit $exec
    $vcc_lo = S_AND_B32 $exec_lo, %151, implicit-def dead $scc
    S_CBRANCH_VCCNZ %bb.16, implicit killed $vcc
    S_BRANCH %bb.17

  bb.17:
    %152:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %76, implicit $exec
    $vcc_lo = S_AND_B32 $exec_lo, %152, implicit-def dead $scc
    S_CBRANCH_VCCNZ %bb.14, implicit killed $vcc
    S_BRANCH %bb.18

  bb.18:
    $exec_lo = S_OR_B32 $exec_lo, %65, implicit-def $scc
    S_ENDPGM 0

  bb.19:
    $exec_lo = S_OR_B32 $exec_lo, %59, implicit-def $scc
    S_BRANCH %bb.2

...