[all-commits] [llvm/llvm-project] dd811e: Mips: Mark the assembler temporary def dead in Fas...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/mips/fastisel-branch-dead-at
  Home:   https://github.com/llvm/llvm-project
  Commit: dd811ec95604278f5e614224f3bcc5e13dbf2301
      https://github.com/llvm/llvm-project/commit/dd811ec95604278f5e614224f3bcc5e13dbf2301
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-09-30 (Wed, 30 Sep 2026)

  Changed paths:
    M llvm/lib/Target/Mips/MipsFastISel.cpp
    A llvm/test/CodeGen/Mips/Fast-ISel/branch-dead-at.ll

  Log Message:
  -----------
  Mips: Mark the assembler temporary def dead in FastISel branches

The conditional branch emitted by FastISel reserves $at for long branch
expansion, which only uses it as a scratch.

Co-Authored-By: Claude Opus 5 <noreply at anthropic.com>



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