1; RUN: opt -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s 2 3; Check that BasicAA falls back to MayAlias (instead of PartialAlias) when none 4; of its little tricks are applicable. 5 6; CHECK: MayAlias: float* %arrayidxA, float* %arrayidxB 7 8define void @fallback_mayalias(ptr noalias nocapture %C, i64 %i, i64 %j) local_unnamed_addr { 9entry: 10 %cmp = icmp ne i64 %i, %j 11 call void @llvm.assume(i1 %cmp) 12 13 %arrayidxA = getelementptr inbounds float, ptr %C, i64 %i 14 store float undef, ptr %arrayidxA, align 4 15 16 %arrayidxB = getelementptr inbounds float, ptr %C, i64 %j 17 store float undef, ptr %arrayidxB, align 4 18 19 ret void 20} 21 22declare void @llvm.assume(i1) 23