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| author | Dan Gohman <gohman@apple.com> | 2011-04-27 18:39:03 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2011-04-27 18:39:03 +0000 |
| commit | bddc1ca18a8ca23f6f145d2f5d006fa07e72a870 (patch) | |
| tree | 1afb359ced10ad7ac499db3f1daf94af5589ae21 /test/Analysis/BasicAA | |
| parent | a2a162077c80ebacc7c1b0bd92892ae207f1231f (diff) | |
| download | external_llvm-bddc1ca18a8ca23f6f145d2f5d006fa07e72a870.zip external_llvm-bddc1ca18a8ca23f6f145d2f5d006fa07e72a870.tar.gz external_llvm-bddc1ca18a8ca23f6f145d2f5d006fa07e72a870.tar.bz2 | |
When analyzing functions known to only access argument pointees,
only check arguments with pointer types. Update the documentation
of IntrReadArgMem reflect this.
While here, add support for TBAA tags on intrinsic calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130317 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/BasicAA')
| -rw-r--r-- | test/Analysis/BasicAA/intrinsics.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/intrinsics.ll b/test/Analysis/BasicAA/intrinsics.ll new file mode 100644 index 0000000..bec878a --- /dev/null +++ b/test/Analysis/BasicAA/intrinsics.ll @@ -0,0 +1,23 @@ +; 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(i8* %p, i32 16) nounwind +; CHECK-NEXT: call void @llvm.arm.neon.vst1.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(i8* %p, i32 16) nounwind + call void @llvm.arm.neon.vst1.v8i16(i8* %q, <8 x i16> %y, i32 16) + %b = call <8 x i16> @llvm.arm.neon.vld1.v8i16(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(i8*, i32) nounwind readonly +declare void @llvm.arm.neon.vst1.v8i16(i8*, <8 x i16>, i32) nounwind |