[PATCH] D75840: [ExpandMemCmp] Improve non-equality comparisons with zero.

[Clement Courbet via Phabricator via llvm-commits]

courbet created this revision.
courbet added reviewers: spatel, efriedma.
Herald added subscribers: jsji, hiraditya, nemanjai.
Herald added a project: LLVM.

This is one step towards fixing PR45147.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D75840

Files:
  llvm/lib/CodeGen/ExpandMemCmp.cpp
  llvm/test/CodeGen/PowerPC/memCmpUsedInZeroEqualityComparison.ll
  llvm/test/CodeGen/X86/memcmp-more-load-pairs.ll
  llvm/test/CodeGen/X86/memcmp.ll
  llvm/test/Transforms/ExpandMemCmp/X86/memcmp.ll

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