[Bug target/38629] target-specific parameters for inline heuristics not defined for AVR

[steven at gcc dot gnu dot org]

------- Comment #1 from steven at gcc dot gnu dot org  2008-12-26 15:38 -------
GCC inline heuristics are just that: heuristics. They are not optimal for all
targets but only for those targets that they have been tuned for.

For AVR, nobody ever tuned the heuristics, despite several suggestions (see
e.g. bug 30908).  In this case, PARAM_INLINE_CALL_COST and MOVE_RATIO should be
tuned for AVR.

Therefore, target enhancement request.


-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |enhancement
             Status|UNCONFIRMED                 |NEW
          Component|c                           |target
     Ever Confirmed|0                           |1
   GCC host triplet|i386/cygwin                 |
   Last reconfirmed|0000-00-00 00:00:00         |2008-12-26 15:38:49
               date|                            |
            Summary|gcc version 4.2.x, 4.3.x and|target-specific parameters
                   |4.4.0 are doing (too much)  |for inline heuristics not
                   |automatic inlining with -O1,|defined for AVR
                   |-O2 and -Os                 |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38629