[PATCH] D141990: [InstSimplify] Add transform ctpop(X) -> 1 iff X is non-zero power of 2

[Nikita Popov via Phabricator via llvm-commits]

nikic added inline comments.


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Comment at: llvm/lib/Analysis/InstructionSimplify.cpp:5886
                                      const SimplifyQuery &Q) {
+  Value * Op0 = Call->getArgOperand(0);
   // Idempotent functions return the same result when called repeatedly.
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Any particular reason for this change? It doesn't look like you make use of it (note that Call->getType() == Op0->getType() below).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D141990/new/

https://reviews.llvm.org/D141990