------- Additional Comments From andre dot maute at gmx dot de 2004-12-10 22:36 ------- I don't think the compile time regression is solved in the actual g++-4.0. I made some run time measurements with the attached file compiletimetest2.cc on a PIII 550. The __DEBUG__ tests only enable <iostream> and some cerr lines. > g++ -v Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/specs Configured with: ../gcc-3.2.1/configure --prefix=/usr --enable-shared --enable-languages=c,c++ --enable-threads=posix --with-slibdir=/lib --enable-__cxa_atexit--enable-clocale=gnu Thread model: posix gcc version 3.2.1 > g++-3.3.5 -v Reading specs from /opt/gcc-3.3.5/lib/gcc-lib/i686-pc-linux-gnu/3.3.5/specs Configured with: ../gcc-3.3.5/configure --prefix=/opt/gcc-3.3.5 --enable-shared--enable-languages=c,c++ --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --program-suffix=-3.3.5 --with-cpu=pentium3 Thread model: posix gcc version 3.3.5 > g++-3.4.3 -v Reading specs from /opt/gcc-3.4.3/lib/gcc/i686-pc-linux-gnu/3.4.3/specs Configured with: ../gcc-3.4.3/configure --prefix=/opt/gcc-3.4.3 --enable-shared--enable-languages=c,c++ --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --program-suffix=-3.4.3 --with-arch=pentium3 Thread model: posix gcc version 3.4.3 g++-4.0-20041205 -v Reading specs from /opt/gcc-4.0-20041205/lib/gcc/i686-pc-linux-gnu/4.0.0/specs Configured with: ../gcc-4.0-20041205/configure --prefix=/opt/gcc-4.0-20041205 --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --disable-nls --program-suffix=-4.0-20041205 --with-arch=pentium3 Thread model: posix gcc version 4.0.0 20041205 (experimental) > time g++ -c -O3 -D __NDEBUG__ compiletimetest2.cc real 0m9.957s user 0m9.910s sys 0m0.090s > time g++ -c -O3 -D __DEBUG__ compiletimetest2.cc real 0m13.544s user 0m13.270s sys 0m0.170s > time g++-3.3.5 -c -O3 -D __NDEBUG__ compiletimetest2.cc real 0m9.881s user 0m9.740s sys 0m0.130s > time g++-3.3.5 -c -O3 -D __NDEBUG__ compiletimetest2.cc real 0m9.881s user 0m9.740s sys 0m0.130s > time g++-3.4.3 -c -O3 -D __NDEBUG__ compiletimetest2.cc real 0m18.614s user 0m18.240s sys 0m0.310s > time g++-3.4.3 -c -O3 -D __DEBUG__ compiletimetest2.cc real 0m21.563s user 0m21.050s sys 0m0.510s > time g++-4.0-20041205 -c -O3 -D __NDEBUG__ compiletimetest2.cc real 0m24.983s user 0m24.740s sys 0m0.160s > time g++-4.0-20041205 -c -O3 -D __DEBUG__ compiletimetest2.cc real 0m31.269s user 0m30.230s sys 0m0.240s Regards Andre
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16613
