[PATCH] D118492: [AMDGPU] Lazily init pal metadata on first function

[Sebastian Neubauer via Phabricator via llvm-commits]

sebastian-ne created this revision.
sebastian-ne added reviewers: arsenm, tpr.
Herald added subscribers: foad, kerbowa, hiraditya, t-tye, dstuttard, yaxunl, mgorny, nhaehnle, jvesely, kzhuravl.
sebastian-ne requested review of this revision.
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Delay reading global metadata until the first function or the end of
the file is emitted. That way, earlier module passes can set metadata
that is emitted in the ELF.

`emitStartOfAsmFile` gets called when the passes are initialized,
which prevented earlier passes from changing the metadata.

This fixes issues encountered after converting
AMDGPUResourceUsageAnalysis to a Module pass in D117504 <https://reviews.llvm.org/D117504>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D118492

Files:
  llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
  llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.h
  llvm/unittests/CodeGen/AMDGPUMetadataTest.cpp
  llvm/unittests/CodeGen/CMakeLists.txt

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