[PATCH][RFC] Add -fno-aggressive-loop-optimizations

Pat Haugen pthaugen@linux.vnet.ibm.com
Wed Jan 30 17:26:00 GMT 2013


On 01/29/2013 04:53 AM, Richard Biener wrote:
> I'm curious about the affect of -fno-aggressive-loop-optimizations
> on SPEC CPU 2006 numbers (not curious enough to try for myself
> though).  Both on extra PASSes for official latest sources
> (I have no access to those) and on performance.
The patch/option result in both 464.h264ref and 416.gamess passing (as 
opposed to infinite loop). As for performance, I didn't see any 
difference outside of noise range for both 32-bit and 64-bit runs on 
PowerPC.

-Pat







More information about the Gcc-patches mailing list