[all-commits] [llvm/llvm-project] b09b9a: [llvm][CodeGen] Fix the empty interval issue in Wi...

[Hua Tian via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b09b9ac1081d19c8021df8e55e96cd1325f0eed0
      https://github.com/llvm/llvm-project/commit/b09b9ac1081d19c8021df8e55e96cd1325f0eed0
  Author: Hua Tian <akiratian at tencent.com>
  Date:   2025-03-17 (Mon, 17 Mar 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/ModuloSchedule.h
    M llvm/lib/CodeGen/ModuloSchedule.cpp
    A llvm/test/CodeGen/Hexagon/swp-ws-live-intervals-issue128714.mir

  Log Message:
  -----------
  [llvm][CodeGen] Fix the empty interval issue in Window Scheduler (#129204)

The interval of newly generated reg in ModuloScheduleExpander is empty.
This will cause crash at some corner case. This patch recalculate the
live intervals of these regs.



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