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[Bug middle-end/34477] [4.3 regression] Standard autoconf mktime test is too slow when compiled with -O2
- From: "ismail at pardus dot org dot tr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Dec 2007 10:30:39 -0000
- Subject: [Bug middle-end/34477] [4.3 regression] Standard autoconf mktime test is too slow when compiled with -O2
- References: <bug-34477-10490@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from ismail at pardus dot org dot tr 2007-12-15 10:30 -------
Timings with gcc 3.4.6 :
[~]> gcc -o mktime mktime.c
[~]> time ./mktime
real 0m0.052s
user 0m0.021s
[~]> gcc -O2 -o mktime mktime.c
[~]> time ./mktime
real 0m0.032s
user 0m0.021s
sys 0m0.011s
So this is a regression.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34477