Hi, I notice that PNGCrush compiled with GCC 4.4.0 (release) is about 20% slower compared to GCC 3.4.0 build. (Amiga 68...@50mhz).
CFLAGS = -I. -DNO_FSEEKO -O2 -fomit-frame-pointer -Wall -m68060 -s PNGCrush test.png out.png Here are the results: GCC 3.4.0 build: CPU time used = 267.340 seconds (decoding 16.940, encoding 247.800, other 2.600 seconds) GCC 4.4.0 build: CPU time used = 328.360 seconds (decoding 16.800, encoding 309.260, other 2.300 seconds) Maybe someone with m68k Debian/PPC/x86 can compile PNGCrush with GCC 3.4.0 and GCC 4.4.0, so we will know if this regression happens there too? Here is a link to the source code (I used PNGCrush 1.6.15 for test): http://sourceforge.net/project/showfiles.php?group_id=1689&package_id=1641 Here is a link to PNG image: http://www.filejumbo.com/Download/D8F7981723E5F07C/ Regards -- Summary: GCC 4.4.0 vs 3.4.0 - PNGCrush is about 20% slower when compiled with GCC 4.4.0 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ami_stuff at o2 dot pl GCC host triplet: i686-cygwin GCC target triplet: m68k-amigaos http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40454