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[InstCombine] Fix extractelement use before def
authorSven van Haastregt <sven.vanhaastregt@arm.com>
Mon, 5 Jun 2017 09:18:10 +0000 (09:18 +0000)
committerSven van Haastregt <sven.vanhaastregt@arm.com>
Mon, 5 Jun 2017 09:18:10 +0000 (09:18 +0000)
commit3303806a3dc9d6f574a7c4ec44335b082451de40
treedbc60feedd11b716d193ec3c6ea327cdca7189cdtree | snapshot
parent3b482e4bca499b98ebfce87cf5a10bbe9029ddcacommit | diff
[InstCombine] Fix extractelement use before def

This fixes a bug that can cause extractelements with operands that
haven't been defined yet to be inserted at a wrong point when
optimising insertelements.

Patch by Karl Hylen.

Differential Revision: https://reviews.llvm.org/D33449

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304701 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/InstCombine/InstCombineVectorOps.cpp diff | blob | history
test/Transforms/InstCombine/insert-extract-shuffle.ll diff | blob | history
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