I use gcc 4.2.2 and I tried both -O0 and -O1. If I use -O1 I can see that use of stack is better. In gcc manual (http://gcc.gnu.org/onlinedocs/gcc-4.2.4/gcc/Optimize-Options.html#Optimize-Options) is reported that -O1 activate -fdefer-pop -fdelayed-branch -fguess-branch-probability -fcprop-registers -fif-conversion -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants so in gcc command line I have replaced -O1 with all these parameters, but I obtain a larger binary and a worst stack usage. Is the same thing of -O0. How can I reproduce -O1 behaviour using simple command line parameter? thanks -- Pro pace mundi adversus meganoides tertio Daitarn pugnabo. Nisi times hanc vim, pugna! Massimiliano Cialdi cialdi@xxxxxxxxx massimiliano.cialdi@xxxxxxxxxxxx
