[PATCH] D94633: [FunctionAttrs] Infer willreturn for functions without loops

[Nikita Popov via Phabricator via llvm-commits]

nikic created this revision.
nikic added reviewers: fhahn, jdoerfert.
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If a function doesn't contain loops and does not call non-willreturn functions, then it is willreturn. Handling of the loop case is left as an exercise to the reader ;)

I think this should give us enough inference to move forward with D94106 <https://reviews.llvm.org/D94106>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94633

Files:
  lib/Transforms/IPO/FunctionAttrs.cpp
  test/Analysis/TypeBasedAliasAnalysis/functionattrs.ll
  test/CodeGen/AMDGPU/inline-attr.ll
  test/CodeGenOpenCL/convergent.cl
  test/Transforms/FunctionAttrs/atomic.ll
  test/Transforms/FunctionAttrs/incompatible_fn_attrs.ll
  test/Transforms/FunctionAttrs/nofree.ll
  test/Transforms/FunctionAttrs/optnone.ll
  test/Transforms/FunctionAttrs/willreturn.ll
  test/Transforms/FunctionAttrs/writeonly.ll
  test/Transforms/InferFunctionAttrs/norecurse_debug.ll

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