This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Status of SEE and Autovectorization patches?
- From: Mircea Namolaru <NAMOLARU at il dot ibm dot com>
- To: Roger Sayle <roger at eyesopen dot com>
- Cc: Ayal Zaks <ZAKS at il dot ibm dot com>, gcc mailing list <gcc at gcc dot gnu dot org>, gcc-patches at gcc dot gnu dot org, "H. J. Lu" <hjl at lucon dot org>, leehod at gmail dot com, Leehod Baruch <leehod dot baruch at weizmann dot ac dot il>, Mark Mitchell <mark at codesourcery dot com>, Richard Henderson <rth at redhat dot com>
- Date: Sun, 7 May 2006 09:15:26 +0200
- Subject: Re: Status of SEE and Autovectorization patches?
> Given that this is more than a bootstrap problem with non-default flags,
> but testsuite regressions for gfortran and SPEC failures on a primary
> platform, I think this falls under GCC's 48 hour rule. This simply
> formalizes your phrase "short time frame" above, and means that it
you're
> unlikely to come up with a solution to these problems in the next day
> or two, that you/we should simply disable -fsee from being turned on by
> default at -O3.
I will disable -fsee for being turned on by default at -O3.
In parallel I will work to see what exactly are the x86 problems.
In my opinion the current x86 problems are due to some patterns difficult
to figure out on PowerPC, and a few safety tests will suffice to fix then
(i.e. to prevent the optimization to be done in these problematic cases).
Mirea