[all-commits] [llvm/llvm-project] 15383d: [EarlyCSE] Support memset loads (#194268)

[nataliakokoromyti via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 15383dcdb4012387d94fab67fed4519613bf9a19
      https://github.com/llvm/llvm-project/commit/15383dcdb4012387d94fab67fed4519613bf9a19
  Author: nataliakokoromyti <nataliakokoromyti at gmail.com>
  Date:   2026-05-04 (Mon, 04 May 2026)

  Changed paths:
    M llvm/lib/Transforms/Scalar/EarlyCSE.cpp
    A llvm/test/Transforms/EarlyCSE/memset-load.ll

  Log Message:
  -----------
  [EarlyCSE] Support memset loads (#194268)

This PR addresses the zero-`memset` case in EarlyCSE as discussed in
#194080. If we do a `memset` of zero and then load back from the same
base pointer, we can fold that load to `null`.



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