no i am not using any -O options. using only individual options but many of them are not woking. I have applied all the indivisual -f* switches on the entire gcc torture testsuite. Interestingly i found that only around 15 switches are giving some impact. Is there any testsuite which can be used to check each and every -f* switch. vikramsp wrote: > > hello there... i am trying my hands on gcc optimisations options. > i tried e.g. -finline-functions, -funroll-loops and the likes but none > worked for me > for ex. i tried -funroll-loops for code > for (int i = 0; i < 3; ++i) > a[i] = i; > > which should unroll like > a[0] = 0 > a[1] = 1 > a[2] = 2 > but it didn't seem to happen. > please help me write good test case or suggest some. i am using gcc > 4.1.2. tried 5.4.2 also on rhel5 > > Best Regards > -- View this message in context: http://old.nabble.com/gcc-optimisation-problem-tp31332634p31333022.html Sent from the gcc - Help mailing list archive at Nabble.com.
