[all-commits] [llvm/llvm-project] fb6038: [DAG] isKnownNeverZero - add ISD::SRA/SRL Demanded...

[Pranshu Goyal via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fb6038d93781bd051a0c0641c4ab5229de62a92b
      https://github.com/llvm/llvm-project/commit/fb6038d93781bd051a0c0641c4ab5229de62a92b
  Author: Pranshu Goyal <78131793+pranshoe at users.noreply.github.com>
  Date:   2026-03-02 (Mon, 02 Mar 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/X86/known-never-zero.ll

  Log Message:
  -----------
  [DAG] isKnownNeverZero - add ISD::SRA/SRL DemandedElts handling and tests (#183577)

This patch updates `SelectionDAG::isKnownNeverZero` to support
`ISD::SRA`/`ISD::SRL` by forwarding the `DemandedElts` mask to its
operands.

Fixes #183046



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