This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/24160] [4.1 Regression] ICE with -O1 -ftree-vectorize -msse
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Oct 2005 13:10:44 -0000
- Subject: [Bug rtl-optimization/24160] [4.1 Regression] ICE with -O1 -ftree-vectorize -msse
- References: <bug-24160-8902@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #11 from pinskia at gcc dot gnu dot org 2005-10-04 13:10 -------
> BTW: Peerhaps a tree expert could look into an optimized tree dump, maybe
> something can be done there.
I doubt it. Unless you find that:
q.0 = (int) &q;
r = &q + (char *) (((long unsigned int) q.0 + 3) / 4 * 4) - &q;
Is a constant, for the reduced testcase that is). This is a reload/ra bug and
really should be fixed there and not worked around anywhere else.
Well &q - &q == 0, so for the reduced testcase, there is some improvements with
a new re-association but it would only help the issue a little bit.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24160