1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -globals-aa -gvn -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker@X = internal global i32 4 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdefine i32 @test_cmpxchg(i32* %P) { 6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_cmpxchg 7*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: store i32 12, i32* @X 8*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call void @modrefX_cmpxchg() 9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %V = load i32, i32* @X 10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 %V 11*9880d681SAndroid Build Coastguard Worker store i32 12, i32* @X 12*9880d681SAndroid Build Coastguard Worker call void @modrefX_cmpxchg() 13*9880d681SAndroid Build Coastguard Worker %V = load i32, i32* @X 14*9880d681SAndroid Build Coastguard Worker ret i32 %V 15*9880d681SAndroid Build Coastguard Worker} 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerdefine void @modrefX_cmpxchg() { 18*9880d681SAndroid Build Coastguard Worker %1 = cmpxchg i32* @X, i32 0, i32 -1 monotonic monotonic 19*9880d681SAndroid Build Coastguard Worker ret void 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerdefine i32 @test_atomicrmw(i32* %P) { 23*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_atomicrmw 24*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: store i32 12, i32* @X 25*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call void @modrefXatomicrmw() 26*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %V = load i32, i32* @X 27*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret i32 %V 28*9880d681SAndroid Build Coastguard Worker store i32 12, i32* @X 29*9880d681SAndroid Build Coastguard Worker call void @modrefXatomicrmw() 30*9880d681SAndroid Build Coastguard Worker %V = load i32, i32* @X 31*9880d681SAndroid Build Coastguard Worker ret i32 %V 32*9880d681SAndroid Build Coastguard Worker} 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Workerdefine void @modrefXatomicrmw() { 35*9880d681SAndroid Build Coastguard Worker %1 = atomicrmw add i32* @X, i32 1 acquire 36*9880d681SAndroid Build Coastguard Worker ret void 37*9880d681SAndroid Build Coastguard Worker} 38