The attached code takes 20 mins to compile on a Linux/Fedora 9 box when using
-O optimization, but only 21 seconds when using -O0
[plet...@quartic cxxps]$ time g++ -O -ftime-report -fmem-report -c cxxps.cpp >&
stat.txt
real 21m41.494s
user 16m24.774s
sys 0m19.713s
[plet...@quartic cxxps]$ time g++ -O0 -ftime-report -fmem-report -c cxxps.cpp
>& stat.txt
real 0m21.391s
user 0m17.666s
sys 0m2.453s
--
Summary: extremely long compile time
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pletzer at txcorp dot com
GCC build triplet: Configured with: ../configure --prefix=/usr --
mandir=/usr/share/
GCC host triplet: Linux quartic.txcorp.com 2.6.25.14-108.fc9.x86_64 #1 SMP
Mon Aug
GCC target triplet: x86_64-redhat-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39860
