[PATCH] D80478: [X86][AVX] Call SimplifyDemandedBits on MaskedLoadSDNode with non-boolean masks
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat May 23 13:15:31 PDT 2020
RKSimon created this revision.
RKSimon added reviewers: craig.topper, spatel.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.
On X86 (AVX1/AVX), non-boolean masked loads only demand the sign bit of the mask., we already do the equivalent for masked stores.
Annoyingly I can't easily handle this inside TargetLowering::SimplifyDemandedBits as this is an x86 specific case for a generic node.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D80478
Files:
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/masked_load.ll
llvm/test/CodeGen/X86/pr45563-2.ll
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