| Eli Friedman | 43f51ae | 2011-08-26 21:21:21 +0000 | [diff] [blame] | 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 | ||||