This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
SPEC sixtrack regression on 64 bits machines
- From: Steven Bosscher <stevenb at suse dot de>
- To: Sebastian Pop <sebastian dot pop at cri dot ensmp dot fr>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 16 Aug 2005 20:43:49 +0200
- Subject: SPEC sixtrack regression on 64 bits machines
Hi,
Something commited a few days ago had resulted in a serious performance
hit for SPEC sixtrack on 64 bits machines... The obvious suspect is
Sebastian Pop's scev patch. The affected targets are at least AMD64 [1]
and PPC64 [2] but not i686 [3].
Sebastian, any idea what might have caused this?
Gr.
Steven
[1] http://www.suse.de/~aj/SPEC/amd64/CFP/summary-britten/200_sixtrack_recent_big.png
[2] http://people.redhat.com/dnovillo/spec2000.ppc64/gcc/200.sixtrack-run-ratio.png
[2] http://people.redhat.com/dnovillo/spec2000.i686/gcc/200.sixtrack-run-ratio.png