[all-commits] [llvm/llvm-project] f38c40: VT: teach isImpliedCondMatchingOperands about same...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f38c40bff399fda9cbed522816f7ddd18f6c0918
      https://github.com/llvm/llvm-project/commit/f38c40bff399fda9cbed522816f7ddd18f6c0918
  Author: Ramkumar Ramachandra <ramkumar.ramachandra at codasip.com>
  Date:   2025-01-11 (Sat, 11 Jan 2025)

  Changed paths:
    M llvm/include/llvm/IR/InstrTypes.h
    M llvm/include/llvm/IR/Instructions.h
    M llvm/include/llvm/SandboxIR/Instruction.h
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/lib/IR/Instructions.cpp
    M llvm/lib/Transforms/Scalar/NewGVN.cpp
    M llvm/test/Analysis/ValueTracking/implied-condition-samesign.ll

  Log Message:
  -----------
  VT: teach isImpliedCondMatchingOperands about samesign (#122474)

Move isImplied{True,False}ByMatchingCmp from CmpInst to ICmpInst, so
that it can operate on CmpPredicate instead of CmpInst::Predicate, and
teach it about samesign. There are two callers of this function, and we
choose to migrate the one in ValueTracking, namely
isImpliedCondMatchingOperands to CmpPredicate, hence teaching it about
samesign, with visible test impact.



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