1; RUN: llc < %s -march=x86-64 -mattr=-sse -O0
2; PR9675
3
4define i32 @t() {
5entry:
6  %i = alloca i32, align 4
7  store i32 1, i32* %i, align 4
8  fence seq_cst
9  %0 = atomicrmw sub i32* %i, i32 1 monotonic
10  fence seq_cst
11  ret i32 0
12}
13