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[Bug tree-optimization/25243] [4.1/4.2 Regression] Jump threading opportunity missed in tree-ssa but caught in jump1
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Dec 2005 18:05:00 -0000
- Subject: [Bug tree-optimization/25243] [4.1/4.2 Regression] Jump threading opportunity missed in tree-ssa but caught in jump1
- References: <bug-25243-280@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from steven at gcc dot gnu dot org 2005-12-05 18:05 -------
Created an attachment (id=10410)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10410&action=view)
follow SSA_NAME_VALUE deep
Hmmwell, the attached patch does bootstrap on i686,ia64, and x86-64, and it
passes regression testing on those targets too. Jeff, do you have an example
of when this could go into an infinite loop?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25243