commit 1a173bb1a6ef3c3ddc2b0a1950d97d1ed4d8bd16
author Yevgeny Rouban <yrouban@azul.com> Thu Mar 25 21:32:55 2021 +0700
committer Copybara-Service <copybara-worker@google.com> Thu Mar 25 15:48:16 2021 -0700
tree 5d25a7b963c030ad48dfc0896e1ac3c9cb2bb2e1
parent 35828c199f27485651a0a818504cfc21056ff53c

[SLP] Fix crash in reduction for integer min/max

The SCEV commit b46c085d2b6d1 [NFCI] SCEVExpander:
    emit intrinsics for integral {u,s}{min,max} SCEV expressions
seems to reveal a new crash in SLPVectorizer.
SLP crashes expecting a SelectInst as an externally used value
but umin() call is found.

The patch relaxes the assumption to make the IR flag propagation safe.

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D99328

GitOrigin-RevId: f7ef26ef0b29a7c864209b78abf4445407a154b1