[PATCH] D19341: Add micro-optimization for 'icmp slt (or A, B), A' to instsimplify.

[Nick Lewycky via llvm-commits]

nlewycky updated this revision to Diff 54431.
nlewycky added a comment.

Move the m_c_Op pattern matches out of ValueTracking.cpp and into PatternMatch.h. Reuse m_c_Or to simplify the new logic in InstructionSimplify.

Swap out a 0 for nullptr when used to initialize a pointer.


http://reviews.llvm.org/D19341

Files:
  include/llvm/Analysis/ValueTracking.h
  include/llvm/IR/PatternMatch.h
  lib/Analysis/InstructionSimplify.cpp
  lib/Analysis/ValueTracking.cpp
  test/Transforms/InstSimplify/compare.ll

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