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[Bug optimization/5738] GCSE missed optimization: common condition instructions
- 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 Jan 2004 07:30:49 -0000
- Subject: [Bug optimization/5738] GCSE missed optimization: common condition instructions
- References: <20020220135601.5738.dann@godzilla.ics.uci.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From kazu at cs dot umass dot edu 2004-01-04 07:30 -------
gcse_main() in gcse.c says
/* It does not make sense to run code hoisting unless we optimizing
for code size -- it rarely makes programs faster, and can make
them bigger if we did partial redundancy elimination (when optimizing
for space, we use a classic gcse algorithm instead of partial
redundancy algorithms). */
if (optimize_size)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=5738