[all-commits] [llvm/llvm-project] 7e6594: [llvm][CodeGen] avoid repeated interval calculatio...

[Hua Tian via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7e65944292278cc245e36cc6ca971654d584012d
      https://github.com/llvm/llvm-project/commit/7e65944292278cc245e36cc6ca971654d584012d
  Author: Hua Tian <akiratian at tencent.com>
  Date:   2025-04-03 (Thu, 03 Apr 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/ModuloSchedule.h
    M llvm/lib/CodeGen/ModuloSchedule.cpp
    A llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir

  Log Message:
  -----------
  [llvm][CodeGen] avoid repeated interval calculation in window scheduler (#132352)

Some new registers are reused when replacing some old ones in
certain use case of ModuloScheduleExpander. It is necessary to
avoid repeated interval calculations for these registers.



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