diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM/atomicrmw_minmax.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/atomicrmw_minmax.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/atomicrmw_minmax.ll b/llvm/test/CodeGen/ARM/atomicrmw_minmax.ll new file mode 100644 index 00000000000..87ec23a9a37 --- /dev/null +++ b/llvm/test/CodeGen/ARM/atomicrmw_minmax.ll @@ -0,0 +1,21 @@ +; RUN: llc -march=arm -mcpu=cortex-a9 %s -o - |& FileCheck %s + +; CHECK: max: +define i32 @max(i8 %ctx, i32* %ptr, i32 %val) +{ +; CHECK: ldrex +; CHECK: cmp [[old:r[0-9]*]], [[val:r[0-9]*]] +; CHECK: movhi {{r[0-9]*}}, [[old]] + %old = atomicrmw umax i32* %ptr, i32 %val monotonic + ret i32 %old +} + +; CHECK: min: +define i32 @min(i8 %ctx, i32* %ptr, i32 %val) +{ +; CHECK: ldrex +; CHECK: cmp [[old:r[0-9]*]], [[val:r[0-9]*]] +; CHECK: movlo {{r[0-9]*}}, [[old]] + %old = atomicrmw umin i32* %ptr, i32 %val monotonic + ret i32 %old +} |
