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[Bug target/42040] [ia64] Inappropriate address spills
- From: "sje at cup dot hp dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Mar 2010 20:48:41 -0000
- Subject: [Bug target/42040] [ia64] Inappropriate address spills
- References: <bug-42040-119@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #12 from sje at cup dot hp dot com 2010-03-22 20:48 -------
Since the proposed patch to meant to address non-optimimal code generation I
decided to try the patch with SPEC2006 and see if it helped the performance. On
SPECint, I got a 3% slowdown, mostly due to 429.mcf slowing down a lot (20%).
471.omnetap also slowed down (7%) and nothing else changed much. With SPECfp,
we got a 0.36% speedup, with 434.zeusmp (4.4%) and 459.GemsFTDT (3.39%)
speeding up the most and no significant slowdowns. I will try to see what
happened with 429.mcf and see why that slowed down so much.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42040