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