[PATCH] D97818: [OpenMP] Remove GPU globalization calls in the middle-end

[Joseph Huber via Phabricator via llvm-commits]

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The changes introduced in D97680 <https://reviews.llvm.org/D97680> create a simpler interface to code that needs to be globalized. This interface is used to simplify the globalization calls in the middle end. We can build an abstract attribute on the call site of the globalization function and run a fixed-point analysis using the Attributor to determine if any calls capture the memory that's been globalized. If the result is that there is no capturing, then the globalization call can be simply replaced with an alloca instruction because that memory cannot escape the thread and does not need globalization.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97818

Files:
  llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
  llvm/lib/Transforms/IPO/AttributorAttributes.cpp
  llvm/lib/Transforms/IPO/OpenMPOpt.cpp
  llvm/test/Transforms/OpenMP/remove_globalization.ll

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