Chenbing Zheng d30cf77cb1 [InstCombine] complete fold extractvalue (any_mul_with_overflow X, -1) ...

When we do extractvalue (any_mul_with_overflow X, -1) --> (-X and icmp),
which left partly failed to match vector constant with poison element.
This patch try to fix it.

Alive2: https://alive2.llvm.org/ce/z/2rGp_3

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D132996

2022-09-02 10:58:42 +08:00

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