49a8cd29ed54c64b3b1fd80612508262a4a7b519 - llvm-project/llvm

commit: 49a8cd29ed54c64b3b1fd80612508262a4a7b519
[log]
author: Juneyoung Lee <aqjune@gmail.com>
Sun Apr 18 10:57:04 2021 +0900
committer: Copybara-Service <copybara-worker@google.com>
Sat Apr 17 21:35:09 2021 -0700
tree: 404d436e85174bd538db500972eda825ae201174
parent: 3109d03cffac663e4bd297095c382bc83d1216a4 [diff]

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

include/llvm/Analysis/InstructionSimplify.h[diff]
include/llvm/IR/PatternMatch.h[diff]
test/Transforms/InstSimplify/icmp-constant.ll[diff]
unittests/IR/PatternMatch.cpp[diff]

4 files changed

tree: 404d436e85174bd538db500972eda825ae201174