[all-commits] [llvm/llvm-project] 546a9c: CodeGen: Fix bypassing legality checks for IMPLICI...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 546a9ce80cac8fe73d239496010ae84972da3ca8
      https://github.com/llvm/llvm-project/commit/546a9ce80cac8fe73d239496010ae84972da3ca8
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2023-12-06 (Wed, 06 Dec 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetInstrInfo.h
    M llvm/lib/Target/X86/X86InstrInfo.cpp
    A llvm/test/CodeGen/AArch64/implicit-def-remat-requires-impdef-check.mir

  Log Message:
  -----------
  CodeGen: Fix bypassing legality checks for IMPLICIT_DEF rematerialization (#73934)

It's permitted to have extra implicit-def operands of the same main
register
after the main register def. If there are implicit operands, use the
standard
legality checks which verify the operand contents.

Depends #73933