| ; 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: clc |
| ; CHECK-NEXT: cmpxchg8b {{.*}}(%rip) |
| ; CHECK-NEXT: cmpxchg16b {{.*}}(%rip) |
| ; CHECK-NEXT: clc |
| ; CHECK: #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}"([16 x i8]* nonnull @test_mem, [16 x i8]* nonnull @test_mem) #1 |
| ret void |
| } |