[PATCH] D61665: [TailCall] Disable tail call if the callee function contain __builtin_frame_address or __builtin_return_address

[Alex Bradbury via Phabricator via llvm-commits]

asb added a comment.

The description of the llvm.frameaddress and llvm.returnaddress intrinsics seems to indicate that these are "best effort" and LLVM doesn't really guarantee a correct result for a depth > 1 https://llvm.org/docs/LangRef.html#llvm-returnaddress-intrinsic https://llvm.org/docs/LangRef.html#llvm-returnaddress-intrinsic

Is there a particular use case that is improved by improving the quality of frameaddress/returnaddress results?


Repository:
  rL LLVM

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  https://reviews.llvm.org/D61665/new/

https://reviews.llvm.org/D61665