[all-commits] [llvm/llvm-project] aaf746: X86: Remove stale EFLAGS live range when convertin...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/codegen/x86-convertto3addr-eflags-lis
  Home:   https://github.com/llvm/llvm-project
  Commit: aaf7461b4208bb670b0de24794f136061bfc4f49
      https://github.com/llvm/llvm-project/commit/aaf7461b4208bb670b0de24794f136061bfc4f49
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrInfo.cpp
    A llvm/test/CodeGen/X86/twoaddr-lea-eflags-liveintervals.ll

  Log Message:
  -----------
  X86: Remove stale EFLAGS live range when converting ADD to LEA

convertToThreeAddress may rewrite an EFLAGS-clobbering ADD into an LEA, which
does not define EFLAGS. hasLiveCondCodeDef guarantees the EFLAGS def was dead, so
drop its LiveIntervals value, otherwise the verifier would fail.

Fixes verifier errors with -early-live-intervals.

Co-authored-by: Claude (Claude-Opus-4.8)


  Commit: 582f097be1376e6bfe75f0572c60fda6c9d42d75
      https://github.com/llvm/llvm-project/commit/582f097be1376e6bfe75f0572c60fda6c9d42d75
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrInfo.cpp
    M llvm/test/CodeGen/X86/twoaddr-lea-eflags-liveintervals.ll

  Log Message:
  -----------
  review feedback


  Commit: c6197dd7f0564f5cc4a5da3bcc43cac1195a1eb2
      https://github.com/llvm/llvm-project/commit/c6197dd7f0564f5cc4a5da3bcc43cac1195a1eb2
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/test/CodeGen/X86/twoaddr-lea-eflags-liveintervals.ll

  Log Message:
  -----------
  more-tests


Compare: https://github.com/llvm/llvm-project/compare/b5cdef27f10b...c6197dd7f056

To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications