| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3 |
| # RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -run-pass=si-fix-sgpr-copies -verify-machineinstrs -o - %s | FileCheck --check-prefixes=GCN %s |
| |
| --- |
| name: cmp_f16 |
| body: | |
| bb.0.entry: |
| ; GCN-LABEL: name: cmp_f16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:sreg_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_CVT_F16_U16_t16_e64_:%[0-9]+]]:vgpr_16 = V_CVT_F16_U16_t16_e64 0, [[DEF]], 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_CVT_F16_U16_t16_e64_]], %subreg.lo16, [[DEF2]], %subreg.hi16 |
| ; GCN-NEXT: [[V_CMP_LT_F16_t16_e64_:%[0-9]+]]:sreg_32_xm0_xexec = nofpexcept V_CMP_LT_F16_t16_e64 0, killed [[REG_SEQUENCE]].lo16, 0, [[DEF1]], 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, -1, killed [[V_CMP_LT_F16_t16_e64_]], implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:sreg_32 = IMPLICIT_DEF |
| %2:vgpr_16 = V_CVT_F16_U16_t16_e64 0, %0:vgpr_16, 0, 0, 0, implicit $mode, implicit $exec |
| %3:sreg_32 = COPY %2:vgpr_16 |
| nofpexcept S_CMP_LT_F16 killed %3:sreg_32, %1:sreg_32, implicit-def $scc, implicit $mode |
| %4:sreg_32_xm0_xexec = COPY $scc |
| %5:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, -1, killed %4, implicit $exec |
| ... |
| |
| --- |
| name: cvt_hi_f32_f16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: cvt_hi_f32_f16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_CVT_F16_U16_t16_e64_:%[0-9]+]]:vgpr_16 = V_CVT_F16_U16_t16_e64 0, [[DEF]], 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_CVT_F16_U16_t16_e64_]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY [[REG_SEQUENCE]] |
| ; GCN-NEXT: [[V_CVT_F32_F16_t16_e64_:%[0-9]+]]:vgpr_32 = V_CVT_F32_F16_t16_e64 0, [[COPY]].hi16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:vgpr_16 = V_CVT_F16_U16_t16_e64 0, %0:vgpr_16, 0, 0, 0, implicit $mode, implicit $exec |
| %2:sreg_32 = COPY %1:vgpr_16 |
| %3:sreg_32 = S_CVT_HI_F32_F16 %2:sreg_32, implicit $mode |
| ... |
| |
| --- |
| name: s_or_b32 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: s_or_b32 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_CVT_F16_U16_t16_e64_:%[0-9]+]]:vgpr_16 = V_CVT_F16_U16_t16_e64 0, [[DEF]], 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_CVT_F16_U16_t16_e64_]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_OR_B32_e64_:%[0-9]+]]:vgpr_32 = V_OR_B32_e64 [[REG_SEQUENCE]], [[REG_SEQUENCE]], implicit $exec |
| ; GCN-NEXT: [[V_CVT_F16_U16_t16_e64_1:%[0-9]+]]:vgpr_16 = V_CVT_F16_U16_t16_e64 0, [[V_OR_B32_e64_]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:vgpr_16 = V_CVT_F16_U16_t16_e64 0, %0:vgpr_16, 0, 0, 0, implicit $mode, implicit $exec |
| %2:sreg_32 = COPY %1:vgpr_16 |
| %3:sreg_32 = S_OR_B32 %2:sreg_32, %2:sreg_32, implicit-def $scc |
| %4:vgpr_16 = V_CVT_F16_U16_t16_e64 0, %3:sreg_32, 0, 0, 0, implicit $mode, implicit $exec |
| ... |
| |
| --- |
| name: salu16_usedby_salu32 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: salu16_usedby_salu32 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[DEF]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_TRUNC_F16_t16_e64_]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[REG_SEQUENCE]], [[DEF]], implicit $exec |
| %0:vgpr_32 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_32 |
| %2:sreg_32 = S_TRUNC_F16 %1:sreg_32, implicit $mode |
| %3:sreg_32 = S_XOR_B32 %2:sreg_32, %1:sreg_32, implicit-def $scc |
| ... |
| |
| --- |
| name: salu16_usedby_valu32 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: salu16_usedby_valu32 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[DEF]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_TRUNC_F16_t16_e64_]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[REG_SEQUENCE]], [[DEF]], implicit-def $scc, implicit $exec |
| %0:vgpr_32 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_32 |
| %2:sreg_32 = S_TRUNC_F16 %1:sreg_32, implicit $mode |
| %3:vgpr_32 = V_XOR_B32_e64 %2:sreg_32, %1:sreg_32, implicit-def $scc, implicit $exec |
| ... |
| |
| --- |
| name: salu32_usedby_salu16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: salu32_usedby_salu16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[DEF]], [[DEF]], implicit $exec |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[V_XOR_B32_e64_]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_32 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_32 |
| %2:sreg_32 = S_XOR_B32 %1:sreg_32, %1:sreg_32, implicit-def $scc |
| %3:sreg_32 = S_TRUNC_F16 %2:sreg_32, implicit $mode |
| ... |
| |
| --- |
| name: salu32_usedby_valu16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: salu32_usedby_valu16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[DEF]], [[DEF]], implicit $exec |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[V_XOR_B32_e64_]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_32 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_32 |
| %2:sreg_32 = S_XOR_B32 %1:sreg_32, %1:sreg_32, implicit-def $scc |
| %3:vgpr_16 = V_TRUNC_F16_t16_e64 0, %2:sreg_32, 0, 0, 0, implicit $mode, implicit $exec |
| ... |
| |
| --- |
| name: copy_vgpr16_sreg32_usedby_salu16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: copy_vgpr16_sreg32_usedby_salu16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[DEF]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[REG_SEQUENCE]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_16 |
| %2:sreg_32 = S_TRUNC_F16 %1:sreg_32, implicit $mode |
| ... |
| |
| --- |
| name: copy_vgpr16_sreg32_usedby_salu32 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: copy_vgpr16_sreg32_usedby_salu32 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[DEF]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[REG_SEQUENCE]], [[REG_SEQUENCE]], implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_16 |
| %2:sreg_32 = S_XOR_B32 %1:sreg_32, %1:sreg_32, implicit-def $scc |
| ... |
| |
| --- |
| name: copy_vgpr32_sreg32_usedby_valu16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: copy_vgpr32_sreg32_usedby_valu16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[V_TRUNC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_TRUNC_F16_t16_e64 0, [[DEF]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_32 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_32 |
| %2:vgpr_16 = V_TRUNC_F16_t16_e64 0, %1:sreg_32, 0, 0, 0, implicit $mode, implicit $exec |
| ... |
| |
| --- |
| name: S_FMAC_F16 |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: S_FMAC_F16 |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[DEF]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[DEF]], %subreg.lo16, [[DEF2]], %subreg.hi16 |
| ; GCN-NEXT: [[V_FMAC_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_FMAC_F16_t16_e64 0, [[REG_SEQUENCE1]].lo16, 0, [[REG_SEQUENCE1]].lo16, 0, [[REG_SEQUENCE]].lo16, 0, 0, 0, implicit $mode, implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:sgpr_lo16 = COPY %0:vgpr_16 |
| %2:sreg_32 = COPY %0:vgpr_16 |
| %3:sreg_32 = COPY %1:sgpr_lo16 |
| %4:sreg_32 = S_FMAC_F16 %3:sreg_32, %3:sreg_32, %2:sreg_32, implicit $mode |
| ... |
| |
| --- |
| name: legalize_with_multi_user |
| body: | |
| bb.0: |
| ; GCN-LABEL: name: legalize_with_multi_user |
| ; GCN: [[DEF:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[DEF]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_ADD_F16_t16_e64_:%[0-9]+]]:vgpr_16 = V_ADD_F16_t16_e64 0, [[REG_SEQUENCE]].lo16, 0, 1, 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 32768 |
| ; GCN-NEXT: [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[DEF3:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE1:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_ADD_F16_t16_e64_]], %subreg.lo16, [[DEF3]], %subreg.hi16 |
| ; GCN-NEXT: [[V_PK_FMA_F16_:%[0-9]+]]:vgpr_32 = V_PK_FMA_F16 11, [[S_MOV_B32_]], 0, [[REG_SEQUENCE1]], 8, [[DEF2]], 0, 0, 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[DEF4:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE2:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_ADD_F16_t16_e64_]], %subreg.lo16, [[DEF4]], %subreg.hi16 |
| ; GCN-NEXT: [[V_XOR_B32_e64_:%[0-9]+]]:vgpr_32 = V_XOR_B32_e64 [[REG_SEQUENCE2]], [[S_MOV_B32_]], implicit $exec |
| %0:vgpr_16 = IMPLICIT_DEF |
| %1:sreg_32 = COPY %0:vgpr_16 |
| %2:sreg_32 = S_ADD_F16 %1:sreg_32, 1, implicit $mode |
| %3:sreg_32 = S_MOV_B32 32768 |
| %4:vgpr_32 = IMPLICIT_DEF |
| %5:vgpr_32 = V_PK_FMA_F16 11, %3:sreg_32, 0, %2:sreg_32, 8, %4:vgpr_32, 0, 0, 0, 0, 0, implicit $mode, implicit $exec |
| %6:sreg_32 = S_XOR_B32 %2:sreg_32, %3:sreg_32, implicit-def dead $scc |
| ... |
| |
| --- |
| name: vgpr16_to_spgr32 |
| body: | |
| ; GCN-LABEL: name: vgpr16_to_spgr32 |
| ; GCN: bb.0.entry: |
| ; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000) |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: [[DEF:%[0-9]+]]:sreg_32 = IMPLICIT_DEF |
| ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY [[DEF]] |
| ; GCN-NEXT: [[DS_READ2_B32_gfx9_:%[0-9]+]]:vreg_64 = DS_READ2_B32_gfx9 killed [[COPY]], 0, 1, 0, implicit $exec :: (load (s64) from `ptr addrspace(3) poison` + 8, align 4, addrspace 3) |
| ; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[DS_READ2_B32_gfx9_]].sub0 |
| ; GCN-NEXT: [[V_CVT_F16_F32_t16_e64_:%[0-9]+]]:vgpr_16 = nofpexcept V_CVT_F16_F32_t16_e64 0, killed [[COPY1]], 0, 0, 0, implicit $mode, implicit $exec |
| ; GCN-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 65535 |
| ; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_16 = IMPLICIT_DEF |
| ; GCN-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vgpr_32 = REG_SEQUENCE [[V_CVT_F16_F32_t16_e64_]], %subreg.lo16, [[DEF1]], %subreg.hi16 |
| ; GCN-NEXT: [[V_READFIRSTLANE_B32_:%[0-9]+]]:sreg_32_xm0 = V_READFIRSTLANE_B32 [[REG_SEQUENCE]], implicit $exec |
| ; GCN-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32 = S_AND_B32 killed [[S_MOV_B32_]], killed [[V_READFIRSTLANE_B32_]], implicit-def dead $scc |
| ; GCN-NEXT: [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 5 |
| ; GCN-NEXT: [[S_MUL_I32_:%[0-9]+]]:sreg_32 = S_MUL_I32 killed [[S_AND_B32_]], killed [[S_MOV_B32_1]] |
| ; GCN-NEXT: [[S_MOV_B32_2:%[0-9]+]]:sreg_32 = S_MOV_B32 2 |
| ; GCN-NEXT: S_CMP_LG_U32 killed [[S_MUL_I32_]], killed [[S_MOV_B32_2]], implicit-def $scc |
| ; GCN-NEXT: S_CBRANCH_SCC1 %bb.2, implicit $scc |
| ; GCN-NEXT: S_BRANCH %bb.1 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: bb.1: |
| ; GCN-NEXT: [[S_MOV_B32_3:%[0-9]+]]:sreg_32 = S_MOV_B32 1 |
| ; GCN-NEXT: [[S_MOV_B32_4:%[0-9]+]]:sreg_32 = S_MOV_B32 killed [[S_MOV_B32_3]] |
| ; GCN-NEXT: $sgpr0 = COPY [[S_MOV_B32_4]] |
| ; GCN-NEXT: SI_RETURN_TO_EPILOG $sgpr0 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: bb.2: |
| ; GCN-NEXT: [[S_MOV_B32_5:%[0-9]+]]:sreg_32 = S_MOV_B32 2 |
| ; GCN-NEXT: [[S_MOV_B32_6:%[0-9]+]]:sreg_32 = S_MOV_B32 killed [[S_MOV_B32_5]] |
| ; GCN-NEXT: $sgpr0 = COPY [[S_MOV_B32_6]] |
| ; GCN-NEXT: SI_RETURN_TO_EPILOG $sgpr0 |
| bb.0.entry: |
| successors: %bb.1(0x40000000), %bb.2(0x40000000); %bb.1(50.00%), %bb.2(50.00%) |
| |
| %5:sreg_32 = IMPLICIT_DEF |
| %6:vgpr_32 = COPY %5:sreg_32 |
| %4:vreg_64 = DS_READ2_B32_gfx9 killed %6:vgpr_32, 0, 1, 0, implicit $exec :: (load (s64) from `ptr addrspace(3) poison` + 8, align 4, addrspace 3) |
| %7:sgpr_32 = COPY %4.sub0:vreg_64 |
| %8:vgpr_16 = nofpexcept V_CVT_F16_F32_t16_e64 0, killed %7:sgpr_32, 0, 0, 0, implicit $mode, implicit $exec |
| %9:sreg_32 = S_MOV_B32 65535 |
| %11:sreg_32 = COPY %8:vgpr_16 |
| %10:sreg_32 = S_AND_B32 killed %9:sreg_32, killed %11:sreg_32, implicit-def dead $scc |
| %12:sreg_32 = S_MOV_B32 5 |
| %13:sreg_32 = S_MUL_I32 killed %10:sreg_32, killed %12:sreg_32 |
| %14:sreg_32 = S_MOV_B32 2 |
| S_CMP_LG_U32 killed %13:sreg_32, killed %14:sreg_32, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.2, implicit $scc |
| S_BRANCH %bb.1 |
| bb.1: |
| %17:sreg_32 = S_MOV_B32 1 |
| %18:sreg_32 = S_MOV_B32 killed %17:sreg_32 |
| $sgpr0 = COPY %18:sreg_32 |
| SI_RETURN_TO_EPILOG $sgpr0 |
| bb.2: |
| %15:sreg_32 = S_MOV_B32 2 |
| %16:sreg_32 = S_MOV_B32 killed %15:sreg_32 |
| $sgpr0 = COPY %16:sreg_32 |
| SI_RETURN_TO_EPILOG $sgpr0 |
| ... |