1 ; RUN: llc < %s -march=x86-64 -mcpu=core2 | FileCheck %s 2 3 ; Basic 128-bit cmpxchg 4 define void @t1(i128* nocapture %p) nounwind ssp { 5 entry: 6 ; CHECK movl $1, %ebx 7 ; CHECK: lock 8 ; CHECK-NEXT: cmpxchg16b 9 %r = cmpxchg i128* %p, i128 0, i128 1 seq_cst 10 ret void 11 } 12 13 ; FIXME: Handle 128-bit atomicrmw/load atomic/store atomic 14
