derek.holloway
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90 lines
3.0 KiB
YAML
90 lines
3.0 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 aarch64-none-elf -run-pass=block-placement -O3 -o - %s | FileCheck %s
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# RUN: llc -mtriple aarch64-none-elf -passes='require<profile-summary>,function(machine-function(block-placement))' -O3 -o - %s | FileCheck %s
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## Check that block-placement does not perform tail duplication on the
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## PAUTH_EPILOGUE instruction. If that happened, the two prologues would use
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## different addresses while calculating the return address signature, so the
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## epilogue could only be correct for (at most) one of them.
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--- |
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define void @test() "frame-pointer"="non-leaf" {
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entry:
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ret void
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}
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declare void @f()
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...
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---
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name: test
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body: |
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; CHECK-LABEL: name: test
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; CHECK: bb.0.entry:
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; CHECK-NEXT: successors: %bb.1(0x30000000), %bb.2(0x50000000)
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; CHECK-NEXT: liveins: $w0, $w1, $lr
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: CBZW renamable $w0, %bb.1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2:
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; CHECK-NEXT: successors: %bb.3(0x80000000)
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; CHECK-NEXT: liveins: $w0, $w1, $lr
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: B %bb.3
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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: liveins: $w1, $lr
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: renamable $w8 = MOVZWi 1, 0
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.3:
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; CHECK-NEXT: successors: %bb.5(0x30000000), %bb.4(0x50000000)
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; CHECK-NEXT: liveins: $w1, $w8, $lr
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: frame-setup PAUTH_PROLOGUE implicit-def $lr, implicit killed $lr, implicit $sp
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; CHECK-NEXT: CBZW killed renamable $w1, %bb.5
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.4:
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; CHECK-NEXT: successors: %bb.5(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.5:
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; CHECK-NEXT: BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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; CHECK-NEXT: frame-destroy PAUTH_EPILOGUE implicit-def $lr, implicit killed $lr, implicit $sp
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; CHECK-NEXT: TCRETURNdi @f, 0, csr_aarch64_aapcs, implicit $sp
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $w0, $w1, $lr
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CBNZW renamable $w0, %bb.2
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bb.1:
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successors: %bb.3(0x80000000)
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liveins: $w1, $lr
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renamable $w8 = MOVZWi 1, 0
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B %bb.3
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bb.2:
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successors: %bb.3(0x80000000)
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liveins: $w0, $w1, $lr
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bb.3:
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successors: %bb.5(0x30000000), %bb.4(0x50000000)
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liveins: $w1, $w8, $lr
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frame-setup PAUTH_PROLOGUE implicit-def $lr, implicit killed $lr, implicit $sp
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CBZW killed renamable $w1, %bb.5
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bb.4:
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successors: %bb.5(0x80000000)
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BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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bb.5:
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BL @f, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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frame-destroy PAUTH_EPILOGUE implicit-def $lr, implicit killed $lr, implicit $sp
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TCRETURNdi @f, 0, csr_aarch64_aapcs, implicit $sp
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...
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