[all-commits] [llvm/llvm-project] c80739: [LAA/SLP] Don't truncate APInt in getPointersDiff ...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c807395011a027caae9ac196edfac328fb90443a
      https://github.com/llvm/llvm-project/commit/c807395011a027caae9ac196edfac328fb90443a
  Author: Ramkumar Ramachandra <ramkumar.ramachandra at codasip.com>
  Date:   2025-05-15 (Thu, 15 May 2025)

  Changed paths:
    M llvm/include/llvm/Analysis/LoopAccessAnalysis.h
    M llvm/lib/Analysis/LoopAccessAnalysis.cpp
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/long-pointer-distance.ll

  Log Message:
  -----------
  [LAA/SLP] Don't truncate APInt in getPointersDiff (#139941)

Change getPointersDiff to return an std::optional<int64_t>, and fill
this value with using APInt::trySExtValue. This simple change requires
changes to other functions in LAA, and major changes in SLPVectorizer
changing types from 32-bit to 64-bit.

Fixes #139202.



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