1 ; RUN: opt -basicaa -memcpyopt -S < %s | FileCheck %s
3 target 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 target triple = "x86_64-apple-macosx10.7.0"
8 declare void @otherf(i32*)
10 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
12 ; memcpyopt should not touch atomic ops
13 define void @test1() nounwind uwtable ssp {
16 %x = alloca [101 x i32], align 16
17 %bc = bitcast [101 x i32]* %x to i8*
18 call void @llvm.memset.p0i8.i64(i8* %bc, i8 0, i64 400, i32 16, i1 false)
19 %gep1 = getelementptr inbounds [101 x i32]* %x, i32 0, i32 100
20 store atomic i32 0, i32* %gep1 unordered, align 4
21 %gep2 = getelementptr inbounds [101 x i32]* %x, i32 0, i32 0
22 call void @otherf(i32* %gep2)
26 ; memcpyopt across unordered store
27 define void @test2() nounwind uwtable ssp {
30 ; CHECK-NEXT: store atomic
34 call void @otherf(i32* nocapture %old)
35 store atomic i32 0, i32* @x unordered, align 4
37 store i32 %v, i32* %new
38 call void @otherf(i32* nocapture %new)