[all-commits] [llvm/llvm-project] 6b6216: Account for PATCHABLE instrs in Branch Relaxation

Daniel Hoekwater via All-commits all-commits at lists.llvm.org
Fri Apr 14 16:15:32 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6b62166b4cf8ec69f40a81d143fa1d623b4b0d0c
  Author: Daniel Hoekwater <hoekwater at google.com>
  Date:   2023-04-14 (Fri, 14 Apr 2023)

  Changed paths:
    M llvm/lib/CodeGen/TargetInstrInfo.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
    A llvm/test/CodeGen/AArch64/branch-relax-xray.ll
    M llvm/test/CodeGen/AArch64/machine-outliner-patchable.ll
    A llvm/test/CodeGen/AArch64/machine-outliner-patchable.mir

  Log Message:
  Account for PATCHABLE instrs in Branch Relaxation

PATCHABLE_* instructions expand to up to 36-byte
sleds. Updating the size of PATCHABLE instructions
causes them to be outlined, so we need to add a
check to prevent the outliner from considering
basic blocks that contain PATCHABLE instructions.

Differential Revision: https://reviews.llvm.org/D147982

More information about the All-commits mailing list