13 lines
317 B
LLVM
13 lines
317 B
LLVM
; 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 cmpxchg16b
|
|
%r = cmpxchg i128* %p, i128 0, i128 1 seq_cst seq_cst
|
|
ret void
|
|
}
|
|
|
|
; FIXME: Handle 128-bit atomicrmw/load atomic/store atomic
|