# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=liveintervals,si-lower-control-flow,si-lower-control-flow -verify-machineinstrs %s -o - | FileCheck -check-prefixes=GCN %s
# Check that assert is not triggered
---
name: si-lower-control-flow
body: |
bb.0:
; GCN-LABEL: name: si-lower-control-flow
; GCN: [[COPY:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
; GCN-NEXT: [[S_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM [[COPY]], 16, 0
; GCN-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32_xm0 = S_AND_B32 [[S_LOAD_DWORD_IMM]], 255, implicit-def $scc
; GCN-NEXT: dead [[S_AND_B32_1:%[0-9]+]]:sreg_32_xm0 = S_AND_B32 65535, [[S_AND_B32_]], implicit-def $scc
; GCN-NEXT: S_ENDPGM 0
%0:sgpr_64 = COPY $sgpr4_sgpr5
%1:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %0, 16, 0
%2:sreg_32_xm0 = S_AND_B32 %1, 255, implicit-def $scc
%3:sreg_32_xm0 = S_AND_B32 65535, %2, implicit-def $scc
S_ENDPGM 0
...
---
name: preserve_undef_flag_si_if_src
tracksRegLiveness: true
body: |
; GCN-LABEL: name: preserve_undef_flag_si_if_src
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY]], undef %1:sreg_64, implicit-def dead $scc
; GCN-NEXT: dead [[S_XOR_B64_:%[0-9]+]]:sreg_64 = S_XOR_B64 [[S_AND_B64_]], [[COPY]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: S_CBRANCH_EXECZ %bb.2, implicit $exec
; GCN-NEXT: S_BRANCH %bb.1
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.1, %bb.2
%1:sreg_64 = SI_IF undef %0:sreg_64, %bb.2, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
S_BRANCH %bb.1
bb.1:
successors: %bb.2
bb.2:
S_ENDPGM 0
...
# We need to split the block for SI_END_CF, but
---
name: end_cf_split_block_end
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_end
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY2]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[S_MOV_B64_term]]
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: S_ENDPGM 0
bb.0:
liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %1, implicit $exec
%4:sreg_64_xexec = SI_IF %3, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%5:sreg_64_xexec = S_MOV_B64_term %4, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2
%6:sreg_64_xexec = COPY %5
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
bb.2:
S_ENDPGM 0
...
---
name: end_cf_split_block_physreg_livein
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_physreg_livein
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY2]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[S_MOV_B64_term]]
; GCN-NEXT: S_NOP 0
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_SLEEP 3
; GCN-NEXT: S_NOP 0, implicit $vgpr0, implicit $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: S_ENDPGM 0
bb.0:
liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %1, implicit $exec
%4:sreg_64_xexec = SI_IF %3, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%5:sreg_64_xexec = S_MOV_B64_term %4, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2
liveins: $vgpr0, $sgpr4_sgpr5
%6:sreg_64_xexec = COPY %5
S_NOP 0
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_SLEEP 3
S_NOP 0, implicit $vgpr0, implicit $sgpr4_sgpr5
bb.2:
S_ENDPGM 0
...
---
name: end_cf_split_block_physreg_livein_liveout
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_physreg_livein_liveout
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x0000000000000003
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY2]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x0000000000000003
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[S_MOV_B64_term]]
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_SLEEP 3
; GCN-NEXT: S_NOP 0
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x0000000000000003
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_ENDPGM 0, implicit $vgpr0, implicit $sgpr4_sgpr5, implicit $sgpr8_sgpr9_sgpr10_sgpr11
bb.0:
liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x00000003
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %1, implicit $exec
%4:sreg_64_xexec = SI_IF %3, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%5:sreg_64_xexec = S_MOV_B64_term %4, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2
liveins: $vgpr0, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x00000003
%6:sreg_64_xexec = COPY %5
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_SLEEP 3
S_NOP 0
bb.2:
liveins: $vgpr0, $sgpr4_sgpr5, $sgpr8_sgpr9_sgpr10_sgpr11:0x00000003
S_ENDPGM 0, implicit $vgpr0, implicit $sgpr4_sgpr5, implicit $sgpr8_sgpr9_sgpr10_sgpr11
...
---
name: end_cf_split_block_physreg_liveout
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_physreg_liveout
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY2]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[S_MOV_B64_term]]
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: $vgpr3 = V_MOV_B32_e32 0, implicit $exec
; GCN-NEXT: $sgpr4_sgpr5 = S_MOV_B64 32
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: liveins: $vgpr3, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_ENDPGM 0, implicit $vgpr3, implicit $sgpr4_sgpr5
bb.0:
liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %1, implicit $exec
%4:sreg_64_xexec = SI_IF %3, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%5:sreg_64_xexec = S_MOV_B64_term %4, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2
%6:sreg_64_xexec = COPY %5
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
$vgpr3 = V_MOV_B32_e32 0, implicit $exec
$sgpr4_sgpr5 = S_MOV_B64 32
bb.2:
liveins: $vgpr3, $sgpr4_sgpr5
S_ENDPGM 0, implicit $vgpr3, implicit $sgpr4_sgpr5
...
---
name: end_cf_split_block_physreg_live_across_split
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_physreg_live_across_split
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_EQ_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY2]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[S_MOV_B64_term]]
; GCN-NEXT: $sgpr4_sgpr5 = S_MOV_B64 32
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_SLEEP 3, implicit $sgpr4_sgpr5
; GCN-NEXT: S_NOP 0
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: liveins: $vgpr0, $sgpr4_sgpr5
; GCN-NEXT: {{ $}}
; GCN-NEXT: S_ENDPGM 0, implicit $vgpr0, implicit $sgpr4_sgpr5
bb.0:
liveins: $vgpr0, $vgpr1, $sgpr30_sgpr31, $sgpr4_sgpr5
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %1, implicit $exec
%4:sreg_64_xexec = SI_IF %3, %bb.1, implicit-def $exec, implicit-def dead $scc, implicit $exec
%5:sreg_64_xexec = S_MOV_B64_term %4, implicit $exec
S_BRANCH %bb.2
bb.1:
successors: %bb.2
liveins: $vgpr0, $sgpr4_sgpr5
%6:sreg_64_xexec = COPY %5
$sgpr4_sgpr5 = S_MOV_B64 32
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
S_SLEEP 3, implicit $sgpr4_sgpr5
S_NOP 0
bb.2:
liveins: $vgpr0, $sgpr4_sgpr5
S_ENDPGM 0, implicit $vgpr0, implicit $sgpr4_sgpr5
...
---
name: end_cf_split_block_process_next_inst
tracksRegLiveness: true
body: |
; GCN-LABEL: name: end_cf_split_block_process_next_inst
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x80000000)
; GCN-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr2
; GCN-NEXT: [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY1]], implicit $exec
; GCN-NEXT: [[V_CMP_EQ_U32_e64_1:%[0-9]+]]:sreg_64_xexec = V_CMP_EQ_U32_e64 [[COPY]], [[COPY2]], implicit $exec
; GCN-NEXT: dead [[S_MOV_B64_:%[0-9]+]]:sreg_64_xexec = S_MOV_B64 0
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY3:%[0-9]+]]:sreg_64_xexec = COPY [[V_CMP_EQ_U32_e64_]]
; GCN-NEXT: $exec = S_OR_B64_term $exec, [[COPY3]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.2(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY4:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY4]], [[V_CMP_EQ_U32_e64_1]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64_xexec = S_XOR_B64 [[S_AND_B64_]], [[COPY4]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_]]
; GCN-NEXT: dead [[S_MOV_B64_term:%[0-9]+]]:sreg_64_xexec = S_MOV_B64_term [[S_XOR_B64_]], implicit $exec
; GCN-NEXT: S_CBRANCH_EXECZ %bb.2, implicit $exec
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: S_ENDPGM 0
bb.0:
liveins: $vgpr0, $vgpr1, $vgpr2
%0:vgpr_32 = COPY killed $vgpr0
%1:vgpr_32 = COPY killed $vgpr1
%2:vgpr_32 = COPY killed $vgpr2
%3:sreg_64_xexec = V_CMP_EQ_U32_e64 %0, killed %1, implicit $exec
%4:sreg_64_xexec = V_CMP_EQ_U32_e64 killed %0, killed %2, implicit $exec
%5:sreg_64_xexec = S_MOV_B64 0
bb.1:
successors: %bb.2
%6:sreg_64_xexec = COPY %3
SI_END_CF killed %6, implicit-def $exec, implicit-def dead $scc, implicit $exec
%7:sreg_64_xexec = SI_IF %4, %bb.2, implicit-def $exec, implicit-def dead $scc, implicit $exec
%8:sreg_64_xexec = S_MOV_B64_term %7, implicit $exec
bb.2:
S_ENDPGM 0
...
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