1;  RUN: llc -march=arm -mcpu=cortex-a9 < %s | FileCheck %s
2
3;  CHECK-LABEL: max:
4define i32 @max(i8 %ctx, i32* %ptr, i32 %val)
5{
6;  CHECK: ldrex
7;  CHECK: cmp [[old:r[0-9]*]], [[val:r[0-9]*]]
8;  CHECK: movhi {{r[0-9]*}}, [[old]]
9  %old = atomicrmw umax i32* %ptr, i32 %val monotonic
10  ret i32 %old
11}
12
13;  CHECK-LABEL: min:
14define i32 @min(i8 %ctx, i32* %ptr, i32 %val)
15{
16;  CHECK: ldrex
17;  CHECK: cmp [[old:r[0-9]*]], [[val:r[0-9]*]]
18;  CHECK: movlo {{r[0-9]*}}, [[old]]
19  %old = atomicrmw umin i32* %ptr, i32 %val monotonic
20  ret i32 %old
21}
22