[all-commits] [llvm/llvm-project] bc0a81: [AggressiveInstCombine] Create zext during store m...

[Nikita Popov via All-commits]

  Branch: refs/heads/release/22.x
  Home:   https://github.com/llvm/llvm-project
  Commit: bc0a819e2f79e415b60f665ce3a214e9594cf141
      https://github.com/llvm/llvm-project/commit/bc0a819e2f79e415b60f665ce3a214e9594cf141
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2026-02-16 (Mon, 16 Feb 2026)

  Changed paths:
    M llvm/lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp
    M llvm/test/Transforms/AggressiveInstCombine/X86/store-merge.ll

  Log Message:
  -----------
  [AggressiveInstCombine] Create zext during store merge (#181125)

The top extracted value can include shifted-in zero bits. In that case
we should emit a zext before the new store.

Fixes https://github.com/llvm/llvm-project/issues/181117.

(cherry picked from commit 4167b285e228ee1cfff77f30eee66cbc7b4dd3db)



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