This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- From: "dmixm at marine dot febras dot ru" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Jul 2007 01:24:07 -0000
- Subject: [Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- References: <bug-11180-6291@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from dmixm at marine dot febras dot ru 2007-07-27 01:24 -------
Yes, results are:
avr-gcc-3.3.6: O0 --> 75, O1,O2,O3,Os --> 79
avr-gcc-4.2.1: O0 --> 109, O1,O2,O3,Os --> 79
The mistake is corrected? It is possible to tell and so as now
application of keys of optimization shortens a code. However,
"correction" does not improve quality of optimization, it only worsens
not optimized code.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180