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[Bug c/12780] Huge memory use while compiling a C file
- From: "dhazeghi at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Nov 2003 17:03:50 -0000
- Subject: [Bug c/12780] Huge memory use while compiling a C file
- References: <20031026230730.12780.casteyde.christian@free.fr>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dhazeghi at yahoo dot com 2003-11-14 17:03 -------
I fail to see any regression from 3.3.1 to current 3.3 branch (20031107). It looks like the loop
optimizer is taking the biggest chunk of time, but still, under 1/3 of total compile time. Using
flags -O3 -funroll-all-loops, the whole things takes around 120 seconds, 500 megs. With only -
O3, it gets aways with 70 seconds and 400 megs. On mainline it's even worse: 205 seconds for
only -O3. I'll see if I can shrink the code a bit for a better testcase...
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|[3.3.2 regression] Huge |Huge memory use while
|memory use while compiling a|compiling a C file
|C file |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12780