Re: kind of regression -fprofile-* between r126538 and r126587
Hi Andrew, after applying the patch the problem was fixed! crafty 'works' after -fprofile-generate/-use like a charm (again)! Thank you :-) Best regards, Thomas On Mon, 16 Jul 2007, Andrew Pinski wrote: On 7/16/07, Janis Johnson [EMAIL PROTECTED] wrote: I don't have time right now to look into it, either. I think we have a handle on this regression. See http://gcc.gnu.org/ml/gcc-patches/2007-07/msg01462.html for an approved patch. Thanks, Andrew Pinski
Re: kind of regression -fprofile-* between r126538 and r126587
On Thu, 2007-07-12 at 20:54 +0200, Thomas Veith wrote: Hi *, when compiling crafty-20.14 with CFLAGS='$(CFLAGS) -Wall -pipe -D_REENTRANT -march=i686 -O3 \ -fprofile-use -fbranch-probabilities -fomit-frame-pointer \ -ftree-vectorize -ftree-vectorizer-verbose=1 -msse2 \ -fno-gcse -mpreferred-stack-boundary=2' with rev. 125687 crafty breaks severly -- with rev. 126538 it compiles and runs smoothly. How does it break? I tried building crafty from SPEC CPU2000 on powerpc-linux with -fprofile-generate/-use and various other optimizations with current mainline and found that with feedback plus -O1 the resulting program hangs with the test (short) input. As you can see, there are a lot of options involved and crafty is a big program so I'm not able to provide a reduced testcase and file a PR in bugzilla. But maybe someone can take this as a hint. I don't have time right now to look into it, either. Janis
Re: kind of regression -fprofile-* between r126538 and r126587
On 7/16/07, Janis Johnson [EMAIL PROTECTED] wrote: I don't have time right now to look into it, either. I think we have a handle on this regression. See http://gcc.gnu.org/ml/gcc-patches/2007-07/msg01462.html for an approved patch. Thanks, Andrew Pinski PS See you in Ottawa tomorrow evening.
kind of regression -fprofile-* between r126538 and r126587
Hi *, when compiling crafty-20.14 with CFLAGS='$(CFLAGS) -Wall -pipe -D_REENTRANT -march=i686 -O3 \ -fprofile-use -fbranch-probabilities -fomit-frame-pointer \ -ftree-vectorize -ftree-vectorizer-verbose=1 -msse2 \ -fno-gcse -mpreferred-stack-boundary=2' with rev. 125687 crafty breaks severly -- with rev. 126538 it compiles and runs smoothly. As you can see, there are a lot of options involved and crafty is a big program so I'm not able to provide a reduced testcase and file a PR in bugzilla. But maybe someone can take this as a hint. Best regards, Thomas p.s.: when compiling without -fprofile-use, there is an almost 10% speedup from r126538 to r126587.. congrats!!! r126538 - Raw nodes per second: 1043604 r126587 - Raw nodes per second: 1132738
