24 lines
765 B
LLVM
24 lines
765 B
LLVM
; RUN: opt -basicaa -aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s
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; Check that BasicAA falls back to MayAlias (instead of PartialAlias) when none
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; of its little tricks are applicable.
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; CHECK: MayAlias: float* %arrayidxA, float* %arrayidxB
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define void @fallback_mayalias(float* noalias nocapture %C, i64 %i, i64 %j) local_unnamed_addr {
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entry:
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%shl = shl i64 %i, 3
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%mul = shl nsw i64 %j, 4
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%addA = add nsw i64 %mul, %shl
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%orB = or i64 %shl, 1
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%addB = add nsw i64 %mul, %orB
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%arrayidxA = getelementptr inbounds float, float* %C, i64 %addA
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store float undef, float* %arrayidxA, align 4
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%arrayidxB = getelementptr inbounds float, float* %C, i64 %addB
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store float undef, float* %arrayidxB, align 4
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ret void
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}
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