[all-commits] [llvm/llvm-project] 00926a: [SCEV][LAA] Support multiplication overflow comput...

[annamthomas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 00926a6db6b3379aac05bf6b180123d1e2b0d382
      https://github.com/llvm/llvm-project/commit/00926a6db6b3379aac05bf6b180123d1e2b0d382
  Author: annamthomas <anna at azul.com>
  Date:   2025-08-27 (Wed, 27 Aug 2025)

  Changed paths:
    M llvm/lib/Analysis/Loads.cpp
    M llvm/lib/Analysis/LoopAccessAnalysis.cpp
    M llvm/lib/Analysis/ScalarEvolution.cpp
    M llvm/test/Transforms/LoopVectorize/vect.stats.ll

  Log Message:
  -----------
  [SCEV][LAA] Support multiplication overflow computation (#155236)

Add support for identifying multiplication overflow in SCEV.
This is needed in LoopAccessAnalysis and that limitation was worked
around by 484417a.
This allows early-exit vectorization to work as expected in
vect.stats.ll test without needing the workaround.



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