tree 404d436e85174bd538db500972eda825ae201174
parent 3109d03cffac663e4bd297095c382bc83d1216a4
author Juneyoung Lee <aqjune@gmail.com> 1618711024 +0900
committer Copybara-Service <copybara-worker@google.com> 1618720509 -0700

Update m_Undef to match vectors/aggrs with undefs and poisons mixed

This fixes https://reviews.llvm.org/D93990#2666922
by teaching `m_Undef` to match vectors/aggrs with poison elements.

As suggested, fixes in InstCombine files to use the `m_Undef` matcher instead
of `isa<UndefValue>` will be followed.

Reviewed By: lebedev.ri

Differential Revision: https://reviews.llvm.org/D100122

GitOrigin-RevId: 2813acb7d1f70ec1d4a2a1360028950a0bc2ac8f