| ; RUN: llc < %s -march=ppc64 | FileCheck %s |
| |
| define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind { |
| ; CHECK: exchange_and_add: |
| ; CHECK: ldarx |
| %tmp = atomicrmw add i64* %mem, i64 %val monotonic |
| ; CHECK: stdcx. |
| ret i64 %tmp |
| } |
| |
| define i64 @exchange_and_cmp(i64* %mem) nounwind { |
| ; CHECK: exchange_and_cmp: |
| ; CHECK: ldarx |
| %tmp = cmpxchg i64* %mem, i64 0, i64 1 monotonic |
| ; CHECK: stdcx. |
| ; CHECK: stdcx. |
| ret i64 %tmp |
| } |
| |
| define i64 @exchange(i64* %mem, i64 %val) nounwind { |
| ; CHECK: exchange: |
| ; CHECK: ldarx |
| %tmp = atomicrmw xchg i64* %mem, i64 1 monotonic |
| ; CHECK: stdcx. |
| ret i64 %tmp |
| } |
