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[Bug rtl-optimization/13931] [3.4/4.0/4.1 Regression] combiner much slower on big basic blocks
- From: "ian at airs dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Oct 2005 18:19:48 -0000
- Subject: [Bug rtl-optimization/13931] [3.4/4.0/4.1 Regression] combiner much slower on big basic blocks
- References: <bug-13931-7849@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #35 from ian at airs dot com 2005-10-10 18:19 -------
Created an attachment (id=9952)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9952&action=view)
Patch
This patch fixes the problem in this PR, and also does not lose the REG_DEAD
note in the hppa64-hp-hpux11 test case. I won't try to checkin until it has
been tested on hppa64-hp-hpux11. Unfortunately, that target reportedly does
not bootstrap at the moment for unrelated reasons.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13931