[Bug debug/41371] [4.5/4.6 Regression] var-tracking is slow and memory hungry
rguenth at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Fri Jun 4 11:04:00 GMT 2010
------- Comment #35 from rguenth at gcc dot gnu dot org 2010-06-04 11:03 -------
Created an attachment (id=20837)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20837&action=view)
bnc611650
Another testcase from open-office this time, on i?86-linux only.
$> time g++ -c -g -Os -fomit-frame-pointer analysis.ii
real 103m46.642s
user 96m21.093s
sys 0m1.196s
$> time g++ -c -g -Os analysis.ii
real 0m19.345s
user 0m19.177s
sys 0m0.168s
$> time g++ -c -Os -fomit-frame-pointer analysis.ii
real 0m3.747s
user 0m3.640s
sys 0m0.104s
numbers above are from the 4.5 branch rev. 159866. trunk is also very slow,
but the compile didn't yet finish.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41371
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