[PATCH] D58583: [X86][AVX] Pull out some INSERT_SUBVECTOR combines into a combineConcatVectorOps helper. NFCI
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Feb 23 12:58:12 PST 2019
RKSimon created this revision.
RKSimon added reviewers: craig.topper, spatel.
Herald added a project: LLVM.
A lot of the INSERT_SUBVECTOR combines can be more generally handled as if they have come from a CONCAT_VECTORS node.
I've been investigating adding a CONCAT_VECTORS combine to X86, but this is a much easier first step that avoids the issue of handling a number of pre-legalization issues that I've encountered.
Repository:
rL LLVM
https://reviews.llvm.org/D58583
Files:
lib/Target/X86/X86ISelLowering.cpp
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