------- Comment #1 from hjl at lucon dot org 2007-02-08 17:01 ------- Created an attachment (id=13021) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13021&action=view) A testcase
# /usr/gcc-good/bin/gfortran -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /net/gnu-13/export/gnu/src/gcc/gcc/configure --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --enable-shared --enable-threads=posix --enable-haifa --enable-checking=assert --prefix=/usr/gcc-4.3 --with-local-prefix=/usr/local Thread model: posix gcc version 4.3.0 20061211 (experimental) [trunk revision 119728] # /usr/gcc-4.3/bin/gfortran -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /net/gnu-13/export/gnu/src/gcc/gcc/configure --enable-clocale=gnu --with-system-zlib --enable-decimal-float=yes --with-demangler-in-ld --enable-shared --enable-threads=posix --enable-haifa --enable-checking=assert --prefix=/usr/gcc-4.3 --with-local-prefix=/usr/local Thread model: posix gcc version 4.3.0 20070206 (experimental) [trunk revision 121636] # make /usr/gcc-good/bin/gfortran -c -O2 -ffast-math -static -o old.o e_c3d.f /usr/gcc-4.3/bin/gfortran -O2 -ffast-math -static -c -o tr535.o tr535.f /usr/gcc-4.3/bin/gfortran -O2 -ffast-math -static -o old old.o tr535.o /usr/gcc-4.3/bin/gfortran -c -O2 -ffast-math -static -o new.o e_c3d.f /usr/gcc-4.3/bin/gfortran -O2 -ffast-math -static -o new new.o tr535.o time ./old 0.03user 0.00system 0:00.03elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+82minor)pagefaults 0swaps time ./new 0.10user 0.00system 0:00.10elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+83minor)pagefaults 0swaps -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30735
