| ; RUN: opt -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s |
| |
| ; Check that BasicAA falls back to MayAlias (instead of PartialAlias) when none |
| ; of its little tricks are applicable. |
| |
| ; CHECK: MayAlias: float* %arrayidxA, float* %arrayidxB |
| |
| define void @fallback_mayalias(ptr noalias nocapture %C, i64 %i, i64 %j) local_unnamed_addr { |
| entry: |
| %cmp = icmp ne i64 %i, %j |
| call void @llvm.assume(i1 %cmp) |
| |
| %arrayidxA = getelementptr inbounds float, ptr %C, i64 %i |
| store float undef, ptr %arrayidxA, align 4 |
| |
| %arrayidxB = getelementptr inbounds float, ptr %C, i64 %j |
| store float undef, ptr %arrayidxB, align 4 |
| |
| ret void |
| } |
| |
| declare void @llvm.assume(i1) |
