forked from OSchip/llvm-project
43 lines
1.9 KiB
LLVM
43 lines
1.9 KiB
LLVM
; RUN: opt -basicaa -gvn -S < %s | FileCheck %s
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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"
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; BasicAA should prove that these calls don't interfere, since they are
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; IntrArgReadMem and have noalias pointers.
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; CHECK: define <8 x i16> @test0(i8* noalias %p, i8* noalias %q, <8 x i16> %y) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) [[ATTR:#[0-9]+]]
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; CHECK-NEXT: call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16)
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; CHECK-NEXT: %c = add <8 x i16> %a, %a
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define <8 x i16> @test0(i8* noalias %p, i8* noalias %q, <8 x i16> %y) {
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entry:
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%a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind
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call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16)
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%b = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind
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%c = add <8 x i16> %a, %b
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ret <8 x i16> %c
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}
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; CHECK: define <8 x i16> @test1(i8* %p, <8 x i16> %y) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %q = getelementptr i8* %p, i64 16
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; CHECK-NEXT: %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) [[ATTR]]
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; CHECK-NEXT: call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16)
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; CHECK-NEXT: %c = add <8 x i16> %a, %a
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define <8 x i16> @test1(i8* %p, <8 x i16> %y) {
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entry:
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%q = getelementptr i8* %p, i64 16
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%a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind
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call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16)
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%b = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind
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%c = add <8 x i16> %a, %b
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ret <8 x i16> %c
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}
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declare <8 x i16> @llvm.arm.neon.vld1.v8i16(i8*, i32) nounwind readonly
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declare void @llvm.arm.neon.vst1.v8i16(i8*, <8 x i16>, i32) nounwind
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; CHECK: attributes #0 = { nounwind readonly }
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; CHECK: attributes [[ATTR]] = { nounwind }
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