1; RUN: opt -lint -disable-output < %s 2>&1 | FileCheck %s
2
3declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) nounwind argmemonly
4
5define void @f_memcpy() {
6entry:
7  %dst = alloca [1000 x i8], align 2
8  %src = alloca [1000 x i8], align 4
9  %dst.i8 = bitcast [1000 x i8]* %dst to i8*
10  %src.i8 = bitcast [1000 x i8]* %src to i8*
11; CHECK: Undefined behavior: Memory reference address is misaligned
12; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
13  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
14; CHECK: Undefined behavior: Memory reference address is misaligned
15; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false)
16  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false)
17; CHECK-NOT: @llvm.memcpy.p0i8.p0i8.i32
18  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
19  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 2 %src.i8, i32 200, i1 false)
20  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
21
22  ret void
23}
24
25declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) nounwind argmemonly
26
27define void @f_memmove() {
28entry:
29  %dst = alloca [1000 x i8], align 2
30  %src = alloca [1000 x i8], align 4
31  %dst.i8 = bitcast [1000 x i8]* %dst to i8*
32  %src.i8 = bitcast [1000 x i8]* %src to i8*
33; CHECK: Undefined behavior: Memory reference address is misaligned
34; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
35  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
36; CHECK: Undefined behavior: Memory reference address is misaligned
37; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false)
38  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false)
39; CHECK-NOT: @llvm.memmove.p0i8.p0i8.i32
40  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 1 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
41  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 2 %src.i8, i32 200, i1 false)
42  call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false)
43
44  ret void
45}
46
47declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) nounwind argmemonly
48
49define void @f_memset() {
50entry:
51  %dst = alloca [1000 x i8], align 2
52  %dst.i8 = bitcast [1000 x i8]* %dst to i8*
53; CHECK: Undefined behavior: Memory reference address is misaligned
54; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* align 4 %dst.i8, i8 55, i32 200, i1 false)
55  call void @llvm.memset.p0i8.i32(i8* align 4 %dst.i8, i8 55, i32 200, i1 false)
56; CHECK-NOT: @llvm.memset.p0i8.i32
57  call void @llvm.memset.p0i8.i32(i8* align 1 %dst.i8, i8 55, i32 200, i1 false)
58  call void @llvm.memset.p0i8.i32(i8* align 2 %dst.i8, i8 55, i32 200, i1 false)
59
60  ret void
61}
62