[all-commits] [llvm/llvm-project] 811e50: [llvm][CodeGen] Update checking method of loop-car...

[Hua Tian via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 811e505c5b43242b20029cbd7a85d87763addf83
      https://github.com/llvm/llvm-project/commit/811e505c5b43242b20029cbd7a85d87763addf83
  Author: Hua Tian <akiratian at tencent.com>
  Date:   2024-06-26 (Wed, 26 Jun 2024)

  Changed paths:
    M llvm/lib/CodeGen/WindowScheduler.cpp
    M llvm/test/CodeGen/Hexagon/swp-ws-dead-def.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-exp-dbg.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-exp.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-fail-0.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-fail-1.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-fail-2.mir
    A llvm/test/CodeGen/Hexagon/swp-ws-fail-3.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-meta-instr.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-phi.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-sqrt.mir
    M llvm/test/CodeGen/Hexagon/swp-ws-weak-dep.mir

  Log Message:
  -----------
  [llvm][CodeGen] Update checking method of loop-carried phi in window scheduler (#96288)

Added some logic to check loop-carried phis in the window scheduler. It now includes the scenario where the preceding phi uses the virtual register defined by the succeeding phi.



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