[all-commits] [llvm/llvm-project] 66badf: VT: teach a special-case optz about samesign (#122...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 66badf224ade6e78d5da005f6a9819092fd8767b
      https://github.com/llvm/llvm-project/commit/66badf224ade6e78d5da005f6a9819092fd8767b
  Author: Ramkumar Ramachandra <ramkumar.ramachandra at codasip.com>
  Date:   2025-01-12 (Sun, 12 Jan 2025)

  Changed paths:
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/test/Analysis/ValueTracking/implied-condition-samesign.ll

  Log Message:
  -----------
  VT: teach a special-case optz about samesign (#122590)

There is a narrow special-case in isImpliedCondICmps that can benefit
from being taught about samesign. Since it costs us nothing to implement
it, teach it about samesign, for completeness. This patch marks the
completion of the effort to teach ValueTracking about samesign.



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