Shivam Gupta 46aba711ab [InstCombine] (icmp eq A, -1) & (icmp eq B, -1) --> (icmp eq (A&B), -1) ...

This patch add another icmp fold for -1 case.

This fixes https://github.com/llvm/llvm-project/issues/62311,
where we want instcombine to merge all compare intructions together so
later passes like simplifycfg and slpvectorize can better optimize this
chained comparison.

Reviewed By: goldstein.w.n

Differential Revision: https://reviews.llvm.org/D151660

2023-06-08 09:00:05 +05:30

2.1 KiB

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