1; RUN: opt -basicaa -gvn -S < %s | FileCheck %s
2
3target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
4
5; BasicAA should prove that these calls don't interfere, since they are
6; IntrArgReadMem and have noalias pointers.
7
8; CHECK:      define <8 x i16> @test0(i8* noalias %p, i8* noalias %q, <8 x i16> %y) {
9; CHECK-NEXT: entry:
10; CHECK-NEXT:   %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) [[ATTR:#[0-9]+]]
11; CHECK-NEXT:   call void @llvm.arm.neon.vst1.p0i8.v8i16(i8* %q, <8 x i16> %y, i32 16)
12; CHECK-NEXT:   %c = add <8 x i16> %a, %a
13define <8 x i16> @test0(i8* noalias %p, i8* noalias %q, <8 x i16> %y) {
14entry:
15  %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) nounwind
16  call void @llvm.arm.neon.vst1.p0i8.v8i16(i8* %q, <8 x i16> %y, i32 16)
17  %b = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) nounwind
18  %c = add <8 x i16> %a, %b
19  ret <8 x i16> %c
20}
21
22; CHECK:      define <8 x i16> @test1(i8* %p, <8 x i16> %y) {
23; CHECK-NEXT: entry:
24; CHECK-NEXT:   %q = getelementptr i8, i8* %p, i64 16
25; CHECK-NEXT:   %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) [[ATTR]]
26; CHECK-NEXT:   call void @llvm.arm.neon.vst1.p0i8.v8i16(i8* %q, <8 x i16> %y, i32 16)
27; CHECK-NEXT:   %c = add <8 x i16> %a, %a
28define <8 x i16> @test1(i8* %p, <8 x i16> %y) {
29entry:
30  %q = getelementptr i8, i8* %p, i64 16
31  %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) nounwind
32  call void @llvm.arm.neon.vst1.p0i8.v8i16(i8* %q, <8 x i16> %y, i32 16)
33  %b = call <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8* %p, i32 16) nounwind
34  %c = add <8 x i16> %a, %b
35  ret <8 x i16> %c
36}
37
38declare <8 x i16> @llvm.arm.neon.vld1.v8i16.p0i8(i8*, i32) nounwind readonly
39declare void @llvm.arm.neon.vst1.p0i8.v8i16(i8*, <8 x i16>, i32) nounwind
40
41; CHECK: attributes #0 = { argmemonly nounwind readonly }
42; CHECK: attributes #1 = { argmemonly nounwind }
43; CHECK: attributes [[ATTR]] = { nounwind }
44