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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple amdgcn-amd-amdhsa -mcpu=gfx1030 -verify-machineinstrs -run-pass=si-optimize-exec-masking-pre-ra %s -o - | FileCheck --check-prefix=GCN %s
# %8 is defined at the end, but it will be used in bb.2.
# Make sure we properly extend its liverange to the beginning of the bb.2.
# and to the end of the bb.6
---
name: def_later_than_use
tracksRegLiveness: true
body: |
; GCN-LABEL: name: def_later_than_use
; GCN: bb.0:
; GCN-NEXT: successors: %bb.1(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[GLOBAL_LOAD_USHORT:%[0-9]+]]:vgpr_32 = GLOBAL_LOAD_USHORT undef %1:vreg_64, 0, 0, implicit $exec
; GCN-NEXT: [[DEF:%[0-9]+]]:sreg_32_xm0_xexec = IMPLICIT_DEF
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.1:
; GCN-NEXT: successors: %bb.6(0x04000000), %bb.1(0x7c000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32 = S_AND_B32 $exec_lo, [[DEF]], implicit-def dead $scc
; GCN-NEXT: $vcc_lo = COPY [[S_AND_B32_]]
; GCN-NEXT: S_CBRANCH_VCCNZ %bb.6, implicit $vcc
; GCN-NEXT: S_BRANCH %bb.1
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.2:
; GCN-NEXT: successors: %bb.3(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: $vcc_lo = S_ANDN2_B32 $exec_lo, %8, implicit-def dead $scc
; GCN-NEXT: S_CBRANCH_VCCNZ %bb.3, implicit $vcc
; GCN-NEXT: S_BRANCH %bb.3
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.3:
; GCN-NEXT: successors: %bb.4(0x50000000), %bb.5(0x30000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: $exec_lo = S_OR_B32 $exec_lo, %6, implicit-def $scc
; GCN-NEXT: [[V_CMP_NE_U32_e64_:%[0-9]+]]:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %5, implicit $exec
; GCN-NEXT: $vcc_lo = S_AND_B32 $exec_lo, [[V_CMP_NE_U32_e64_]], implicit-def dead $scc
; GCN-NEXT: S_CBRANCH_VCCNZ %bb.5, implicit $vcc
; GCN-NEXT: S_BRANCH %bb.4
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.4:
; GCN-NEXT: successors: %bb.5(0x80000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.5:
; GCN-NEXT: S_ENDPGM 0
; GCN-NEXT: {{ $}}
; GCN-NEXT: bb.6:
; GCN-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[V_CMP_NEQ_F16_e64_:%[0-9]+]]:sreg_32_xm0_xexec = V_CMP_NEQ_F16_e64 0, 0, 0, [[GLOBAL_LOAD_USHORT]], 0, implicit $mode, implicit $exec
; GCN-NEXT: [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, [[V_CMP_NEQ_F16_e64_]], implicit $exec
; GCN-NEXT: [[S_CSELECT_B32_:%[0-9]+]]:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit undef $scc
; GCN-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32 = S_AND_B32 $exec_lo, [[S_CSELECT_B32_]], implicit-def dead $scc
; GCN-NEXT: $exec_lo = S_MOV_B32_term [[S_AND_B32_1]]
; GCN-NEXT: S_CBRANCH_EXECZ %bb.3, implicit $exec
; GCN-NEXT: S_BRANCH %bb.2
bb.0:
successors: %bb.1(0x80000000)
%0:vgpr_32 = GLOBAL_LOAD_USHORT undef %1:vreg_64, 0, 0, implicit $exec
%2:sreg_32_xm0_xexec = IMPLICIT_DEF
bb.1:
successors: %bb.6(0x04000000), %bb.1(0x7c000000)
%3:sreg_32 = S_AND_B32 $exec_lo, %2, implicit-def dead $scc
$vcc_lo = COPY %3
S_CBRANCH_VCCNZ %bb.6, implicit killed $vcc
S_BRANCH %bb.1
bb.2:
successors: %bb.3(0x80000000)
%4:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %5, implicit $exec
$vcc_lo = S_AND_B32 $exec_lo, %4, implicit-def dead $scc
S_CBRANCH_VCCNZ %bb.3, implicit killed $vcc
S_BRANCH %bb.3
bb.3:
successors: %bb.4(0x50000000), %bb.5(0x30000000)
$exec_lo = S_OR_B32 $exec_lo, %6, implicit-def $scc
%7:sreg_32_xm0_xexec = V_CMP_NE_U32_e64 1, %5, implicit $exec
$vcc_lo = S_AND_B32 $exec_lo, %7, implicit-def dead $scc
S_CBRANCH_VCCNZ %bb.5, implicit killed $vcc
S_BRANCH %bb.4
bb.4:
successors: %bb.5(0x80000000)
bb.5:
S_ENDPGM 0
bb.6:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
%8:sreg_32_xm0_xexec = V_CMP_NEQ_F16_e64 0, 0, 0, %0, 0, implicit $mode, implicit $exec
%5:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, %8, implicit $exec
%9:sreg_32_xm0_xexec = S_CSELECT_B32 -1, 0, implicit undef $scc
%10:sreg_32 = COPY $exec_lo, implicit-def $exec_lo
%6:sreg_32 = S_AND_B32 %10, %9, implicit-def dead $scc
$exec_lo = S_MOV_B32_term %6
S_CBRANCH_EXECZ %bb.3, implicit $exec
S_BRANCH %bb.2
...
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