This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/41881] Complete unrolling (inner) versus vectorization of reduction
- From: "drow at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Oct 2009 22:41:56 -0000
- Subject: [Bug tree-optimization/41881] Complete unrolling (inner) versus vectorization of reduction
- References: <bug-41881-3264@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from drow at gcc dot gnu dot org 2009-10-30 22:41 -------
Subject: Re: Complete unrolling (inner)
versus vectorization of reduction
On Fri, Oct 30, 2009 at 10:20:46PM -0000, rguenth at gcc dot gnu dot org wrote:
> You could use -O2 -ftree-vectorize.
No:
static bool
gate_tree_complete_unroll_inner (void)
{
return optimize >= 2;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41881