[all-commits] [llvm/llvm-project] dc11d4: [MCA] [RegisterFile] Allow for skipping Defs with ...

[Patrick Holland via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dc11d4e6be2455e666319e01bc1c79a3ba750fbf
      https://github.com/llvm/llvm-project/commit/dc11d4e6be2455e666319e01bc1c79a3ba750fbf
  Author: Patrick Holland <pholland2 at apple.com>
  Date:   2021-06-17 (Thu, 17 Jun 2021)

  Changed paths:
    M llvm/lib/MCA/HardwareUnits/RegisterFile.cpp

  Log Message:
  -----------
  [MCA] [RegisterFile] Allow for skipping Defs with RegID of 0 (rather than assert(RegID) like we do before this patch).

This patch will allow developers to remove unwanted instruction Defs (most likely from within a target specific InstrPostProcess) by setting that Def's RegisterID to 0.
Differential Revision: https://reviews.llvm.org/D104433