[all-commits] [llvm/llvm-project] 51fe5d: [InstCombine] Pre-commit tests related to ADDLIKE+...

[Björn Pettersson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 51fe5d2c314619796c29af6bd717c5c212faa811
      https://github.com/llvm/llvm-project/commit/51fe5d2c314619796c29af6bd717c5c212faa811
  Author: Björn Pettersson <bjorn.a.pettersson at ericsson.com>
  Date:   2025-04-14 (Mon, 14 Apr 2025)

  Changed paths:
    M llvm/test/Transforms/InstCombine/array.ll

  Log Message:
  -----------
  [InstCombine] Pre-commit tests related to ADDLIKE+GEP->GEP+GEP. NFC (#135154)

InstCombine can transform ADD+GEP into GEP+GEP. But those rewrites does
not currently trigger when the ADD is a disjoint OR (which happens to be
the canonical form for certain ADD operations). Add lit tests to show
that we are lacking such rewrites.

Also add a test case showing that we do not preserve "inbounds nuw",
"nusw nuw" and "nuw" when doing such transforms and the ADD/OR is
known to be NUW.



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