[all-commits] [llvm/llvm-project] 1b2ccf: [AMDGPU] Generate waterfall for calls with SGPR(in...

[Shoreshen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1b2ccf9c6c79d6e57ba6f0a4cf8a3bd1075edebb
      https://github.com/llvm/llvm-project/commit/1b2ccf9c6c79d6e57ba6f0a4cf8a3bd1075edebb
  Author: Shoreshen <372660931 at qq.com>
  Date:   2026-04-20 (Mon, 20 Apr 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.h
    M llvm/test/CodeGen/AMDGPU/call-args-inreg-no-sgpr-for-csrspill.ll
    R llvm/test/CodeGen/AMDGPU/tail-call-inreg-arguments.error.ll
    A llvm/test/CodeGen/AMDGPU/tail-call-inreg-arguments.waterfall.ll

  Log Message:
  -----------
  [AMDGPU] Generate waterfall for calls with SGPR(inreg) argument (#146997)

Fixing issue https://github.com/llvm/llvm-project/issues/140780

Generate waterfall loop for call using SGPR(inreg) argument but result
from divergent source (e.g. VGPR).



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