David Green 6e41d60a71 [SelectionDAG] Change computeAliasing signature from optional<uint64> to LocationSize. (#83017) ...

This is another smaller step of #70452, changing the signature of
computeAliasing() from optional<uint64_t> to LocationSize, and follow-up
changes in DAGCombiner::mayAlias(). There are some test change due to
the previous AA->isNoAlias call incorrectly using an unknown size
(~UINT64_T(0)). This should then be improved again in #70452 when the
types are known to be scalable.

2024-02-28 09:43:05 +00:00

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