[PATCH] D127766: [InstCombine] Fold memcmp of constant arrays and variable size

[Martin Sebor via Phabricator via llvm-commits]

msebor updated this revision to Diff 437334.
msebor added a comment.

Revision 2 of the patch including:

- Handle same arguments in the new `optimizeMemCmpVarSize` and adjust loop.
- Remove constant string handling from `optimizeMemCmpConstantSize`.
- Remove special cases from `LibCallSimplifier::optimizeMemCmpBCmpCommon`.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127766/new/

https://reviews.llvm.org/D127766

Files:
  llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
  llvm/test/Transforms/InstCombine/memcmp-5.ll

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