[all-commits] [llvm/llvm-project] e19261: [TableGen] Add a SmallPtrSet to track WriteRes tha...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e19261faf5c771bd7951b987abe8de698469e9f1
      https://github.com/llvm/llvm-project/commit/e19261faf5c771bd7951b987abe8de698469e9f1
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-01-23 (Thu, 23 Jan 2025)

  Changed paths:
    M llvm/utils/TableGen/Common/CodeGenSchedule.cpp
    M llvm/utils/TableGen/Common/CodeGenSchedule.h

  Log Message:
  -----------
  [TableGen] Add a SmallPtrSet to track WriteRes that are referenced by some ReadAdvance. NFC (#124160)

Use this to remove a linear scan from CodeGenProcModel::hasReadOfWrite.

This reduces build time of RISCVGenSubtargetInfo.inc on by machine from
~6 seconds to ~3 seconds.



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