[PATCH] D47113: [CVP] Teach CorrelatedValuePropagation to reduce the width of lshr instruction.
Justin Lebar via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon May 21 08:48:16 PDT 2018
jlebar added a comment.
In https://reviews.llvm.org/D47113#1106541, @bixia wrote:
> InstCombiner::visitShl performs similar narrowing without checking user count and can increase the total number to ZExt instructions.
Sounds like a bug then, per @spatel's comment quoted in https://reviews.llvm.org/D47113#1106261?
Repository:
rL LLVM
https://reviews.llvm.org/D47113
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