1 ; RUN: opt -basicaa -gvn -S < %s | FileCheck %s 2 3 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" 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(i8* %p, i32 16) [[ATTR:#[0-9]+]] 11 ; CHECK-NEXT: call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16) 12 ; CHECK-NEXT: %c = add <8 x i16> %a, %a 13 define <8 x i16> @test0(i8* noalias %p, i8* noalias %q, <8 x i16> %y) { 14 entry: 15 %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind 16 call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16) 17 %b = call <8 x i16> @llvm.arm.neon.vld1.v8i16(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* %p, i64 16 25 ; CHECK-NEXT: %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) [[ATTR]] 26 ; CHECK-NEXT: call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16) 27 ; CHECK-NEXT: %c = add <8 x i16> %a, %a 28 define <8 x i16> @test1(i8* %p, <8 x i16> %y) { 29 entry: 30 %q = getelementptr i8* %p, i64 16 31 %a = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind 32 call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16) 33 %b = call <8 x i16> @llvm.arm.neon.vld1.v8i16(i8* %p, i32 16) nounwind 34 %c = add <8 x i16> %a, %b 35 ret <8 x i16> %c 36 } 37 38 declare <8 x i16> @llvm.arm.neon.vld1.v8i16(i8*, i32) nounwind readonly 39 declare void @llvm.arm.neon.vst1.v8i16(i8*, <8 x i16>, i32) nounwind 40 41 ; CHECK: attributes #0 = { nounwind readonly } 42 ; CHECK: attributes [[ATTR]] = { nounwind } 43
