This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Patches ping



On May 4, 2005, at 2:07 PM, Zdenek Dvorak wrote:


Hello,


The problem is known for about a month now, and nobody bothered
to do
anything about it.



IIRC, one problem in this area was fixed By Diego and/or Jeff. In any
case,
it would be useful if you provide more info to refresh our memory.




I don't know what the issue was. You can see it yourself if you apply
the patch. basically, at the end of the vectorizing pass, there are
statements which if you call update_stmt() on them, they get a
different
set of operands. This means they needed to be updated during the pass
because they are out of date when the pass is over.



I thought this was addressed by, http://gcc.gnu.org/ml/gcc/2005-04/msg00848.html

This thread started at
    Semi-Latent Bug in tree vectorizer
    http://gcc.gnu.org/ml/gcc/2005-04/msg00382.html


obviously, that was a different bug.

Well, I wanted to know what is "the known problem for about a month" ? This was the only thing I knew and it looked similar. So, I appreciate pointers for earlier discussions you referred above.

Otherwise, I'll try this patch myself, in next couple of days to
understand what is going on.

-
Devang


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]