[Bug middle-end/45422] [4.6 Regression] compile time increases 3x.

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422

--- Comment #40 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-01-27 16:19:26 UTC ---
Btw, when I remove -fbounds-check the sizes are comparable (without
prefetching),
so I guess we are just better in removing bounds checking for 4.6 and that
triggers size-costly loop opts such as vectorization and unrolling.