[PATCH] D22900: Revert r244207 - Mark calls in thunk functions as tail-call optimization

[Amjad Aboud via cfe-commits]

aaboud added a comment.

> ISTM that the DWARF spec intended such thunks to be encoded as `DW_AT_trampoline`.  That seems more appropriate than relying on codegen emitting a tailcall.  This way the debugger can make the policy decision of whether or not thunks should show up in the backtrace.

> 

> In any case, correctness must always trump all else.  Reverting to green should take precedence over a QoI bug like PR24235.


I agree to the revert, though I am not sure about the new test, it looks too complected, especially the command line.
I will let David decide on accepting that test or ask for improvement.

Regards,
Amjad


https://reviews.llvm.org/D22900