[all-commits] [llvm/llvm-project] a301e1: [InstCombine] Split GEPs with multiple non-zero of...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a301e1a8952935a67c32ce76982bd50d8179e415
      https://github.com/llvm/llvm-project/commit/a301e1a8952935a67c32ce76982bd50d8179e415
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2025-09-10 (Wed, 10 Sep 2025)

  Changed paths:
    M clang/test/CodeGen/union-tbaa1.c
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    M llvm/test/Analysis/BasicAA/featuretest.ll
    M llvm/test/Transforms/InstCombine/2010-11-21-SizeZeroTypeGEP.ll
    M llvm/test/Transforms/InstCombine/gep-merge-constant-indices.ll
    M llvm/test/Transforms/InstCombine/gepofconstgepi8.ll
    M llvm/test/Transforms/InstCombine/gepphigep.ll
    M llvm/test/Transforms/InstCombine/getelementptr.ll
    M llvm/test/Transforms/InstCombine/load-cmp.ll
    M llvm/test/Transforms/InstCombine/opaque-ptr.ll
    M llvm/test/Transforms/InstCombine/ptrtoint-nullgep.ll
    M llvm/test/Transforms/InstCombine/select-gep.ll
    M llvm/test/Transforms/InstCombine/strcmp-3.ll
    M llvm/test/Transforms/InstCombine/strlen-7.ll
    M llvm/test/Transforms/InstCombine/strlen-8.ll
    M llvm/test/Transforms/InstCombine/vectorgep-crash.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-interleaved-accesses.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve2-histcnt.ll
    M llvm/test/Transforms/LoopVectorize/X86/consecutive-ptr-uniforms.ll
    M llvm/test/Transforms/LoopVectorize/induction.ll
    M llvm/test/Transforms/LoopVectorize/interleaved-accesses-pred-stores.ll
    M llvm/test/Transforms/LoopVectorize/interleaved-accesses.ll
    M llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

  Log Message:
  -----------
  [InstCombine] Split GEPs with multiple non-zero offsets (#151333)

Split GEPs that have more than one non-zero offset into two GEPs. This
is in preparation for the ptradd migration, which can only represent
such GEPs.

This also enables CSE and LICM of the common base.



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