+
−; RUN: llc < %s -march=x86-64 -mattr=-sse -O0
+
−; PR9675
+
−
+
−define i32 @t() {
+
−entry:
+
−  %i = alloca i32, align 4
+
−  store i32 1, i32* %i, align 4
+
−  fence seq_cst
+
−  %0 = atomicrmw sub i32* %i, i32 1 monotonic
+
−  fence seq_cst
+
−  ret i32 0
+
−}