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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs -run-pass=si-optimize-exec-masking -o - %s | FileCheck %s
# Make sure we can still optimize writes to exec when there are
# additional terminators after the exec write. This can happen with
# phi users of control flow intrinsics.
---
name: instructions_after_copy_to_exec
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: instructions_after_copy_to_exec
; CHECK: bb.0:
; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK-NEXT: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $vgpr1 = V_MOV_B32_e32 0, implicit $exec
; CHECK-NEXT: renamable $vcc = V_CMP_EQ_U32_e64 0, killed $vgpr0, implicit $exec
; CHECK-NEXT: $sgpr0_sgpr1 = S_AND_SAVEEXEC_B64 $vcc, implicit-def $exec, implicit-def $scc, implicit $exec
; CHECK-NEXT: renamable $sgpr0_sgpr1 = S_XOR_B64 $exec, killed renamable $sgpr0_sgpr1, implicit-def dead $scc
; CHECK-NEXT: renamable $sgpr0_sgpr1 = COPY killed renamable $sgpr0_sgpr1, implicit $exec
; CHECK-NEXT: S_CBRANCH_EXECZ %bb.2, implicit $exec
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1:
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: liveins: $sgpr0_sgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: S_NOP 0, implicit $sgpr0_sgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2:
; CHECK-NEXT: liveins: $sgpr0_sgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: S_NOP 0, implicit $sgpr0_sgpr1
bb.0:
liveins: $vgpr0
renamable $vgpr1 = V_MOV_B32_e32 0, implicit $exec
renamable $vcc = V_CMP_EQ_U32_e64 0, killed $vgpr0, implicit $exec
renamable $sgpr0_sgpr1 = COPY $exec, implicit-def $exec
renamable $sgpr2_sgpr3 = S_AND_B64 renamable $sgpr0_sgpr1, renamable $vcc, implicit-def dead $scc
renamable $sgpr0_sgpr1 = S_XOR_B64 renamable $sgpr2_sgpr3, killed renamable $sgpr0_sgpr1, implicit-def dead $scc
$exec = S_MOV_B64_term killed renamable $sgpr2_sgpr3
renamable $sgpr0_sgpr1 = S_MOV_B64_term killed renamable $sgpr0_sgpr1, implicit $exec
S_CBRANCH_EXECZ %bb.2, implicit $exec
bb.1:
liveins: $sgpr0_sgpr1
S_NOP 0, implicit $sgpr0_sgpr1
bb.2:
liveins: $sgpr0_sgpr1
S_NOP 0, implicit $sgpr0_sgpr1
...
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