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Diffstat (limited to 'test/CodeGen/PowerPC/atomic-1.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/atomic-1.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/atomic-1.ll b/test/CodeGen/PowerPC/atomic-1.ll new file mode 100644 index 0000000..ec4e42d --- /dev/null +++ b/test/CodeGen/PowerPC/atomic-1.ll @@ -0,0 +1,21 @@ +; RUN: llc < %s -march=ppc32 | grep lwarx | count 3 +; RUN: llc < %s -march=ppc32 | grep stwcx. | count 4 + +define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind { + %tmp = call i32 @llvm.atomic.load.add.i32( i32* %mem, i32 %val ) + ret i32 %tmp +} + +define i32 @exchange_and_cmp(i32* %mem) nounwind { + %tmp = call i32 @llvm.atomic.cmp.swap.i32( i32* %mem, i32 0, i32 1 ) + ret i32 %tmp +} + +define i32 @exchange(i32* %mem, i32 %val) nounwind { + %tmp = call i32 @llvm.atomic.swap.i32( i32* %mem, i32 1 ) + ret i32 %tmp +} + +declare i32 @llvm.atomic.load.add.i32(i32*, i32) nounwind +declare i32 @llvm.atomic.cmp.swap.i32(i32*, i32, i32) nounwind +declare i32 @llvm.atomic.swap.i32(i32*, i32) nounwind |