This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug fortran/18943] more than quadratic compile-time behavior with many arithmetic if statements
- From: "Thomas dot Koenig at online dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Dec 2004 08:57:50 -0000
- Subject: [Bug fortran/18943] more than quadratic compile-time behavior with many arithmetic if statements
- References: <20041212171016.18943.Thomas.Koenig@online.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From Thomas dot Koenig at online dot de 2004-12-13 08:57 -------
It's not exponential, the exponent is somewhere between
2.2 and 2.3.
Here's a number of test cases on an Itanium 2 with 1.3 GHz:
$last time(s)
10000 476.4
7000 212.8
5000 101.2
3000 29.8
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|exponential (?) compile-time|more than quadratic compile-
|behavior with many |time behavior with many
|arithmetic if statements |arithmetic if statements
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18943