[Bug rtl-optimization/66795] Incorrect and missed optimizations of __builtin_frame_address

pinskia at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Jul 18 00:19:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66795

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The code below is invalid as __builtin_frame_address is only for reading from
the current frame.  Also -O2 enables -fomit-frame-pointer which might cause the
frame pointer to go away.


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