ami_stuff <ami_st...@o2.pl> writes: > I notice about 20% speed regression with GCC 4.4.0 PNGCrush build compared to > GCC 3.4.0 build (Amiga 68...@50mhz). > > CFLAGS = -I. -DNO_FSEEKO -O2 -fomit-frame-pointer -Wall -m68060 -s > > Here are the results: > > GCC 3.4.0: > > CPU time used = 267.340 seconds (decoding 16.940, > encoding 247.800, other 2.600 seconds) > > GCC 4.4.0: > > 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?
I assume that you are measuring the speed of the compiled code, not the speed of the compiler itself. Can you open a bug report about this, with enough information for other people to reproduce the results (e.g., pointer to source code being compiled and input file(s)). Thanks. Ian
