Compiling this program takes a very long time with GCC 4.x compared with GCC
3.3. GCC 3.4 fails to compile it, which has already been reported as PR18462.
Compile times for current mainline, GCC 4.0 and GCC 3.3 on a 500 MHz Pentium III
with 512 MB RAM:
[EMAIL PROTECTED] cgx]$ time g++-cvs -O3 -c CheckersGameX.ii
real 0m41.298s
user 0m39.016s
sys 0m0.958s
[EMAIL PROTECTED] cgx]$ g++-cvs -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-cvs/configure --program-suffix=-cvs
--enable-threads=posix --enable-languages=c,c++ --enable-__cxa_atexit
--prefix=/home/petur/opt/gcc-cvs --disable-checking
Thread model: posix
gcc version 4.1.0 20050430 (experimental)
[EMAIL PROTECTED] cgx]$ time g++400 -O3 -c CheckersGameX.ii
real 0m43.372s
user 0m39.739s
sys 0m0.966s
[EMAIL PROTECTED] cgx]$ g++400 -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.0.0/configure --program-suffix=400
--enable-version-specific-runtime-libs --enable-threads=posix
--enable-languages=c,c++,java --enable-__cxa_atexit
Thread model: posix
gcc version 4.0.0
[EMAIL PROTECTED] cgx]$ time g++335 -O3 -c CheckersGameX.ii
real 0m0.115s
user 0m0.051s
sys 0m0.018s
[EMAIL PROTECTED] cgx]$ g++335 -v
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3.5/specs
Configured with: ../gcc-3.3.5/configure --program-suffix=335
--enable-threads=posix --enable-version-specific-runtime-libs
--enable-languages=c,c++
Thread model: posix
gcc version 3.3.5
--
Summary: [4.0/4.1 Regression] Very high compile time
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: peturrun at internet dot is
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21308
