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[Bug optimization/14706] [tree-ssa] range checks should be merged.
- From: "kazu at cs dot umass dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Apr 2004 16:29:09 -0000
- Subject: [Bug optimization/14706] [tree-ssa] range checks should be merged.
- References: <20040324052246.14706.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From kazu at cs dot umass dot edu 2004-04-04 16:29 -------
Speaking of "should only happen right before ...", we may want to
disable the range merging code in fold() because that tends to create
temporaries (after we have the ability to merge ranges in tree-ssa).
AFAIK, the more temporaries we have, the more memory usage, the fewer
jump threading opportunities, etc.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14706