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[Bug tree-optimization/37916] [4.0 Regression] SSA names causing register pressure; unnecessarily many simultaneously "live" names.
- From: "hp at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Oct 2008 20:57:27 -0000
- Subject: [Bug tree-optimization/37916] [4.0 Regression] SSA names causing register pressure; unnecessarily many simultaneously "live" names.
- References: <bug-37916-507@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from hp at gcc dot gnu dot org 2008-10-25 20:57 -------
Created an attachment (id=16543)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16543&action=view)
Assembly output corresponding to gcc-4.4.0 (trunk at 141361)
For cris-axis-elf, with -O2 -march=v10 -mno-mul-bug-workaround -fno-ivopts
-fno-reorder-blocks -fno-gcse
(Shutting off ivopts has a proven overall positive effect on this port.)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37916