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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
; This used to crash due to Live Variable analysis removing the redundant eax
; and edx clobbers, but not removing the inline asm flag operands that proceed
; them.
@test_mem = dso_local global [16 x i8] c"UUUUUUUUUUUUUUUU", align 16
; Function Attrs: nounwind uwtable
define dso_local void @foo() local_unnamed_addr {
; CHECK-LABEL: foo:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: #APP
; CHECK-EMPTY:
; CHECK-NEXT: clc
; CHECK-NEXT: cmpxchg8b test_mem(%rip)
; CHECK-NEXT: cmpxchg16b test_mem(%rip)
; CHECK-NEXT: clc
; CHECK-EMPTY:
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: retq
entry:
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}"(ptr elementtype([16 x i8]) nonnull @test_mem, ptr elementtype([16 x i8]) nonnull @test_mem) #1
ret void
}
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