[PATCH] D153698: [InstCombine] canonicalize multi xor as cmp+select

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

We shouldn't restrict this to just xor, but generally recurse the operand replacement.



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Comment at: llvm/lib/Analysis/InstructionSimplify.cpp:4289
   transform(I->operands(), NewOps.begin(),
             [&](Value *V) { return V == Op ? RepOp : V; });
 
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This would be the place to recursively call simplifyWithOpReplaced().


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https://reviews.llvm.org/D153698