# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -run-pass=si-optimize-exec-masking-pre-ra -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
# Check for regression from assuming an instruction was a copy after
# dropping the opcode check.
---
name: exec_src1_is_not_copy
tracksRegLiveness: true
machineFunctionInfo:
isEntryFunction: true
scratchRSrcReg: '$sgpr96_sgpr97_sgpr98_sgpr99'
frameOffsetReg: '$sgpr101'
body: |
; GCN-LABEL: name: exec_src1_is_not_copy
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GCN-NEXT: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_64 = COPY $exec
; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
; GCN-NEXT: [[V_CMP_NE_U32_e64_:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
; GCN-NEXT: [[COPY1:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY1]], [[V_CMP_NE_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: [[S_XOR_B64_:%[0-9]+]]:sreg_64 = S_XOR_B64 [[S_AND_B64_]], [[COPY1]], 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: successors: %bb.3(0x40000000), %bb.6(0x40000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[S_OR_SAVEEXEC_B64_:%[0-9]+]]:sreg_64 = S_OR_SAVEEXEC_B64 [[S_XOR_B64_]], implicit-def $exec, implicit-def $scc, implicit $exec
; GCN-NEXT: $exec = S_AND_B64 $exec, [[COPY]], implicit-def dead $scc
; GCN-NEXT: [[S_AND_B64_1:%[0-9]+]]:sreg_64 = S_AND_B64 $exec, [[S_OR_SAVEEXEC_B64_]], implicit-def $scc
; GCN-NEXT: $exec = S_XOR_B64_term $exec, [[S_AND_B64_1]], implicit-def $scc
; GCN-NEXT: S_CBRANCH_EXECZ %bb.6, implicit $exec
; GCN-NEXT: S_BRANCH %bb.3
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.4(0x40000000), %bb.5(0x40000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[V_CMP_NE_U32_e64_1:%[0-9]+]]:sreg_64 = V_CMP_NE_U32_e64 0, [[DEF]], implicit $exec
; GCN-NEXT: [[COPY2:%[0-9]+]]:sreg_64 = COPY $exec, implicit-def $exec
; GCN-NEXT: [[S_AND_B64_2:%[0-9]+]]:sreg_64 = S_AND_B64 [[COPY2]], [[V_CMP_NE_U32_e64_1]], implicit-def dead $scc
; GCN-NEXT: $exec = S_MOV_B64_term [[S_AND_B64_2]]
; GCN-NEXT: S_CBRANCH_EXECZ %bb.5, implicit $exec
; GCN-NEXT: S_BRANCH %bb.4
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.4:
; GCN-NEXT: successors: %bb.5(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.5:
; GCN-NEXT: successors: %bb.6(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: $exec = S_OR_B64 $exec, [[COPY2]], implicit-def $scc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.6:
; GCN-NEXT: $exec = S_OR_B64 $exec, [[S_AND_B64_1]], implicit-def $scc
bb.0:
successors: %bb.1, %bb.2
liveins: $vgpr0
%0:sreg_64 = COPY $exec
%1:vgpr_32 = IMPLICIT_DEF
%2:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
%3:sreg_64 = COPY $exec, implicit-def $exec
%4:sreg_64 = S_AND_B64 %3, %2, implicit-def dead $scc
%5:sreg_64 = S_XOR_B64 %4, %3, implicit-def dead $scc
$exec = S_MOV_B64_term %4
S_CBRANCH_EXECZ %bb.2, implicit $exec
S_BRANCH %bb.1
bb.1:
bb.2:
successors: %bb.3, %bb.6
%6:sreg_64 = S_OR_SAVEEXEC_B64 %5, implicit-def $exec, implicit-def $scc, implicit $exec
$exec = S_AND_B64 $exec, %0, implicit-def dead $scc
%7:sreg_64 = S_AND_B64 $exec, %6, implicit-def $scc
$exec = S_XOR_B64_term $exec, %7, implicit-def $scc
S_CBRANCH_EXECZ %bb.6, implicit $exec
S_BRANCH %bb.3
bb.3:
successors: %bb.4, %bb.5
%8:sreg_64 = V_CMP_NE_U32_e64 0, %1, implicit $exec
%9:sreg_64 = COPY $exec, implicit-def $exec
%10:sreg_64 = S_AND_B64 %9, %8, implicit-def dead $scc
$exec = S_MOV_B64_term %10
S_CBRANCH_EXECZ %bb.5, implicit $exec
S_BRANCH %bb.4
bb.4:
bb.5:
$exec = S_OR_B64 $exec, %9, implicit-def $scc
bb.6:
$exec = S_OR_B64 $exec, %7, implicit-def $scc
...
# When folding a v_cndmask and a v_cmp in a pattern leading to
# s_cbranch_vccz, ensure that an undef operand is handled correctly.
---
name: cndmask_cmp_cbranch_fold_undef
tracksRegLiveness: true
body: |
; GCN-LABEL: name: cndmask_cmp_cbranch_fold_undef
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: $vcc = S_ANDN2_B64 $exec, undef %1:sreg_64_xexec, implicit-def dead $scc
; GCN-NEXT: S_CBRANCH_VCCZ %bb.1, implicit $vcc
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
bb.0:
%1:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %0:sreg_64_xexec, implicit $exec
V_CMP_NE_U32_e32 1, %1, implicit-def $vcc, implicit $exec
$vcc = S_AND_B64 $exec, $vcc, implicit-def dead $scc
S_CBRANCH_VCCZ %bb.1, implicit $vcc
bb.1:
...
# Don't crash on exec copy to SGPR subregister.
---
name: exec_copy_to_subreg
tracksRegLiveness: true
body: |
; GCN-LABEL: name: exec_copy_to_subreg
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: dead undef [[COPY:%[0-9]+]].sub0:sgpr_256 = COPY $exec
; GCN-NEXT: dead [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %2:sreg_64_xexec, implicit $exec
; GCN-NEXT: S_BRANCH %bb.1
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
bb.0:
undef %0.sub0:sgpr_256 = COPY $exec
%2:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, undef %1:sreg_64_xexec, implicit $exec
S_BRANCH %bb.1
bb.1:
...
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