[all-commits] [llvm/llvm-project] 90a997: [llvm][CodeGen] Fixed a bug in stall cycle calcula...

[Kai Yan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 90a997988279ecd0e9aefcf14ee0642093b03398
      https://github.com/llvm/llvm-project/commit/90a997988279ecd0e9aefcf14ee0642093b03398
  Author: Kai Yan <aklkaiyan at tencent.com>
  Date:   2024-07-25 (Thu, 25 Jul 2024)

  Changed paths:
    M llvm/lib/CodeGen/WindowScheduler.cpp
    A llvm/test/CodeGen/Hexagon/swp-ws-stall-cycle.mir

  Log Message:
  -----------
  [llvm][CodeGen] Fixed a bug in stall cycle calculation for window scheduler (#99451)

Fixed a bug in stall cycle calculation.
When a register defined by an instruction in the current iteration is
used by an instruction in the next iteration, we have modified the
number of stall cycle that need to be inserted.



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