derek.holloway
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81 lines
2.6 KiB
YAML
81 lines
2.6 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
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# RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -run-pass=early-machinelicm %s -o - | FileCheck %s
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# RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -passes=early-machinelicm %s -o - | FileCheck %s
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# Issue #100115: test that MachineLICM does not assert on the undef use operand
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# of the REG_SEQUENCE instruction.
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---
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name: test_undef_use
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tracksRegLiveness: true
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body: |
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; CHECK-LABEL: name: test_undef_use
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.1(0x80000000)
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; CHECK-NEXT: liveins: $vgpr0, $vgpr1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
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; CHECK-NEXT: [[DEF1:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1:
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; CHECK-NEXT: successors: %bb.3(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[REG_SEQUENCE:%[0-9]+]]:vreg_64 = REG_SEQUENCE undef %3:vgpr_32, %subreg.sub0, undef [[DEF]], %subreg.sub1
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; CHECK-NEXT: S_BRANCH %bb.3
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2:
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; CHECK-NEXT: successors: %bb.5(0x04000000), %bb.1(0x7c000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: $vcc_lo = COPY undef [[DEF1]]
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; CHECK-NEXT: S_CBRANCH_VCCNZ %bb.5, implicit $vcc_lo
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; CHECK-NEXT: S_BRANCH %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.3:
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; CHECK-NEXT: successors: %bb.4(0x04000000), %bb.3(0x7c000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: S_CBRANCH_SCC1 %bb.3, implicit undef $scc
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; CHECK-NEXT: S_BRANCH %bb.4
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.4:
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; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: SI_LOOP undef [[DEF1]], %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
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; CHECK-NEXT: S_BRANCH %bb.2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.5:
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; CHECK-NEXT: S_ENDPGM 0
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bb.0:
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successors: %bb.1(0x80000000)
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liveins: $vgpr0, $vgpr1
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%0:vgpr_32 = IMPLICIT_DEF
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%1:sreg_32 = IMPLICIT_DEF
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bb.1:
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successors: %bb.3(0x80000000)
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%2:vreg_64 = REG_SEQUENCE undef %3:vgpr_32, %subreg.sub0, undef %0, %subreg.sub1
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S_BRANCH %bb.3
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bb.2:
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successors: %bb.5(0x04000000), %bb.1(0x7c000000)
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$vcc_lo = COPY undef %1
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S_CBRANCH_VCCNZ %bb.5, implicit $vcc
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S_BRANCH %bb.1
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bb.3:
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successors: %bb.4(0x04000000), %bb.3(0x7c000000)
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S_CBRANCH_SCC1 %bb.3, implicit undef $scc
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S_BRANCH %bb.4
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bb.4:
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successors: %bb.2(0x40000000), %bb.1(0x40000000)
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SI_LOOP undef %1, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
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S_BRANCH %bb.2
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bb.5:
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S_ENDPGM 0
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...
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