1 ; RUN: opt < %s -globals-aa -gvn -S | FileCheck %s
3 @X = internal global i32 4
5 define i32 @test_cmpxchg(i32* %P) {
6 ; CHECK-LABEL: @test_cmpxchg
7 ; CHECK-NEXT: store i32 12, i32* @X
8 ; CHECK-NEXT: call void @modrefX_cmpxchg()
9 ; CHECK-NEXT: %V = load i32, i32* @X
10 ; CHECK-NEXT: ret i32 %V
12 call void @modrefX_cmpxchg()
13 %V = load i32, i32* @X
17 define void @modrefX_cmpxchg() {
18 %1 = cmpxchg i32* @X, i32 0, i32 -1 monotonic monotonic
22 define i32 @test_atomicrmw(i32* %P) {
23 ; CHECK-LABEL: @test_atomicrmw
24 ; CHECK-NEXT: store i32 12, i32* @X
25 ; CHECK-NEXT: call void @modrefXatomicrmw()
26 ; CHECK-NEXT: %V = load i32, i32* @X
27 ; CHECK-NEXT: ret i32 %V
29 call void @modrefXatomicrmw()
30 %V = load i32, i32* @X
34 define void @modrefXatomicrmw() {
35 %1 = atomicrmw add i32* @X, i32 1 acquire