1*9880d681SAndroid Build Coastguard Worker; RUN: opt -basicaa -memcpyopt -S < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-macosx10.7.0" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker@x = global i32 0 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdeclare void @otherf(i32*) 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Worker; memcpyopt should not touch atomic ops 13*9880d681SAndroid Build Coastguard Workerdefine void @test1() nounwind uwtable ssp { 14*9880d681SAndroid Build Coastguard Worker; CHECK: test1 15*9880d681SAndroid Build Coastguard Worker; CHECK: store atomic 16*9880d681SAndroid Build Coastguard Worker %x = alloca [101 x i32], align 16 17*9880d681SAndroid Build Coastguard Worker %bc = bitcast [101 x i32]* %x to i8* 18*9880d681SAndroid Build Coastguard Worker call void @llvm.memset.p0i8.i64(i8* %bc, i8 0, i64 400, i32 16, i1 false) 19*9880d681SAndroid Build Coastguard Worker %gep1 = getelementptr inbounds [101 x i32], [101 x i32]* %x, i32 0, i32 100 20*9880d681SAndroid Build Coastguard Worker store atomic i32 0, i32* %gep1 unordered, align 4 21*9880d681SAndroid Build Coastguard Worker %gep2 = getelementptr inbounds [101 x i32], [101 x i32]* %x, i32 0, i32 0 22*9880d681SAndroid Build Coastguard Worker call void @otherf(i32* %gep2) 23*9880d681SAndroid Build Coastguard Worker ret void 24*9880d681SAndroid Build Coastguard Worker} 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Worker; memcpyopt across unordered store 27*9880d681SAndroid Build Coastguard Workerdefine void @test2() nounwind uwtable ssp { 28*9880d681SAndroid Build Coastguard Worker; CHECK: test2 29*9880d681SAndroid Build Coastguard Worker; CHECK: call 30*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: store atomic 31*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call 32*9880d681SAndroid Build Coastguard Worker %old = alloca i32 33*9880d681SAndroid Build Coastguard Worker %new = alloca i32 34*9880d681SAndroid Build Coastguard Worker call void @otherf(i32* nocapture %old) 35*9880d681SAndroid Build Coastguard Worker store atomic i32 0, i32* @x unordered, align 4 36*9880d681SAndroid Build Coastguard Worker %v = load i32, i32* %old 37*9880d681SAndroid Build Coastguard Worker store i32 %v, i32* %new 38*9880d681SAndroid Build Coastguard Worker call void @otherf(i32* nocapture %new) 39*9880d681SAndroid Build Coastguard Worker ret void 40*9880d681SAndroid Build Coastguard Worker} 41*9880d681SAndroid Build Coastguard Worker 42