diff options
Diffstat (limited to 'test/CodeGen/X86/cmpxchg16b.ll')
| -rw-r--r-- | test/CodeGen/X86/cmpxchg16b.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/cmpxchg16b.ll b/test/CodeGen/X86/cmpxchg16b.ll new file mode 100644 index 0000000..ba1c4ef --- /dev/null +++ b/test/CodeGen/X86/cmpxchg16b.ll @@ -0,0 +1,13 @@ +; RUN: llc < %s -march=x86-64 -mcpu=core2 | FileCheck %s + +; Basic 128-bit cmpxchg +define void @t1(i128* nocapture %p) nounwind ssp { +entry: +; CHECK movl $1, %ebx +; CHECK: lock +; CHECK-NEXT: cmpxchg16b + %r = cmpxchg i128* %p, i128 0, i128 1 seq_cst + ret void +} + +; FIXME: Handle 128-bit atomicrmw/load atomic/store atomic |
