[Bug rtl-optimization/21182] gcc can use registers but uses stack instead

[vda.linux at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21182



--- Comment #8 from Denis Vlasenko <vda.linux at googlemail dot com> 2013-01-18 
00:55:37 UTC ---

Grrr, another mistake. Correcting again:



Conclusion:

gcc-3.4.3 -O3 was close to ideal.

^^^^^^^^^

gcc-4.2.1 is worse.

gcc-4.6.3 got better a bit, still not as good as gcc-3.4.3 -O3 used to be.

                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^