[PATCH] D152431: [Inliner] Handle convergence control when inlining a call

[Sameer Sahasrabuddhe via Phabricator via llvm-commits]

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The inliner is now aware of controlled and uncontrolled convergent operations.
A call from function F to function G can be inlined only if:

- at least one of F or G does not make any convergent calls, or,
- both F and G make the same kind of convergent calls: controlled or uncontrolled.

When such a call is inlined, if G makes a call to the entry intrinsic, this is
now replaced with the token passed in the "convergencectrl" operand bundle at
the callsite.

This adapts and supersedes the original change D85606 <https://reviews.llvm.org/D85606> by
Nicolai Haehnle <nicolai.haehnle at amd.com>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152431

Files:
  llvm/include/llvm/Analysis/ConvergenceControlUsage.h
  llvm/include/llvm/Transforms/Scalar/PlaceSafepoints.h
  llvm/include/llvm/Transforms/Utils/Cloning.h
  llvm/lib/Analysis/CMakeLists.txt
  llvm/lib/Analysis/ConvergenceControlUsage.cpp
  llvm/lib/CodeGen/SafeStack.cpp
  llvm/lib/Passes/PassBuilder.cpp
  llvm/lib/Passes/PassRegistry.def
  llvm/lib/Transforms/Coroutines/CoroSplit.cpp
  llvm/lib/Transforms/IPO/AlwaysInliner.cpp
  llvm/lib/Transforms/IPO/Inliner.cpp
  llvm/lib/Transforms/IPO/ModuleInliner.cpp
  llvm/lib/Transforms/IPO/PartialInlining.cpp
  llvm/lib/Transforms/IPO/SampleProfile.cpp
  llvm/lib/Transforms/Scalar/PlaceSafepoints.cpp
  llvm/lib/Transforms/Utils/InlineFunction.cpp
  llvm/test/Transforms/Inline/cgscc-incremental-invalidate.ll
  llvm/test/Transforms/Inline/convergence-inline.ll
  llvm/test/Transforms/Inline/convergence-no-mixing.ll
  llvm/unittests/Analysis/FunctionPropertiesAnalysisTest.cpp

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