http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59779
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-03-13
Ever confirmed|0 |1
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Indeed, you're right, seems cddce1 removes the first loop when HOST_WIDE_INT is
32-bit. So, you really don't need -ftree-parallelize-loop=4 at all, the
testcase would just abort at runtime. Looking into it.