[PATCH] D58585: [DAGCombine] Add undef shuffle elt support to partitionShuffleOfConcats
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Feb 23 14:32:35 PST 2019
RKSimon created this revision.
RKSimon added reviewers: craig.topper, spatel, niravd, efriedma.
Herald added a project: LLVM.
Support undef shuffle mask indices in the shuffle(concat_vectors, concat_vectors) -> concat_vectors fold
Repository:
rL LLVM
https://reviews.llvm.org/D58585
Files:
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
test/CodeGen/X86/subvector-broadcast.ll
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