[all-commits] [llvm/llvm-project] 66e049: [GlobalISel] Do not run verifier after ResetMachin...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 66e0498dafbfa7f8fd7deaa88ae62bdf38a12113
      https://github.com/llvm/llvm-project/commit/66e0498dafbfa7f8fd7deaa88ae62bdf38a12113
  Author: David Green <david.green at arm.com>
  Date:   2025-01-29 (Wed, 29 Jan 2025)

  Changed paths:
    M llvm/lib/CodeGen/TargetPassConfig.cpp
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.gfx950.ll

  Log Message:
  -----------
  [GlobalISel] Do not run verifier after ResetMachineFunctionPass (#124799)

After we fall back from GlobalISel to SDAG, the verifier gets called,
which calls getReservedRegs which uses SIMachineFunctionInfo::usesAGPRs
which caches the result of UsesAGPRs. Because we have just fallen-back
the function is empty and it incorrectly gets cached to false. This
patch makes sure we don't try to run the verifier whilst the function is
empty.



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