> -----Original Message----- > From: Ian Lance Taylor [mailto:[EMAIL PROTECTED] > Sent: Tuesday, April 17, 2007 4:20 PM > To: Eric Weddington > Cc: 'Steven Bosscher'; gcc@gcc.gnu.org; 'Joerg Wunsch'; > 'Anatoly Sokolov' > Subject: Re: GCC -On optimization passes: flag and doc issues > > Eric Weddington <[EMAIL PROTECTED]> writes: > > > "Also, as you mention the target code has a chance to tune > this ..., can you > > give me a hint about > > where to look for these knobs? I might give it a try to > see whether I > > can find a more optimal set of parameters." > > > > This was in response to your comment in #4. Do you have any concrete > > suggestions? > > Define OPTIMIZATION_OPTIONS in the CPU.h file. See the internal > documentation, and examples in many backends.
Thanks for your help. We'll look into it. > If the code size increases for AVR, when using -Os, when comparing an > older release to mainline or 4.2 branch, you should report that as a > regression in bugzilla. Thanks. Will change the bug report to reflect that. Eric
