[PATCH] D12547: Add support for function attribute "disable_tail_calls"

[Aaron Ballman via cfe-commits]

aaron.ballman added a comment.

In http://reviews.llvm.org/D12547#287153, @ahatanak wrote:

> Marking virtual functions as disable_tail_calls is fine since disable_tail_calls affects the call sites inside the body of the marked function. In your example, it prevents tail call optimization on call sites inside B::g, but doesn't affect call sites in D::g.


Okay, that's reasonable, but you should definitely update the documentation to reflect that and have at least one codegen test that ensures the behavior is implemented as-expected.


http://reviews.llvm.org/D12547