25 lines
966 B
LLVM
25 lines
966 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
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; This used to crash due to Live Variable analysis removing the redundant eax
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; and edx clobbers, but not removing the inline asm flag operands that proceed
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; them.
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@test_mem = dso_local global [16 x i8] c"UUUUUUUUUUUUUUUU", align 16
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; Function Attrs: nounwind uwtable
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define dso_local void @foo() local_unnamed_addr {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: #APP
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; CHECK: clc
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; CHECK-NEXT: cmpxchg8b {{.*}}(%rip)
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; CHECK-NEXT: cmpxchg16b {{.*}}(%rip)
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; CHECK-NEXT: clc
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; CHECK: #NO_APP
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; CHECK-NEXT: retq
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entry:
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tail call void asm sideeffect inteldialect "clc\0A\09cmpxchg8b $0\0A\09cmpxchg16b $1\0A\09clc", "=*m,=*m,~{eax},~{edx},~{flags},~{rax},~{rdx},~{dirflag},~{fpsr},~{flags}"([16 x i8]* nonnull @test_mem, [16 x i8]* nonnull @test_mem) #1
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ret void
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}
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