This is the mail archive of the gcc@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: PRE (sometimes) confuses ivopts/scev?




On Mon, 24 Jan 2005, Richard Guenther wrote:

Daniel Berlin wrote:

Just as a followup, sebastian's patch is at (the actual patch is ta the end of the message. You sahouldn't need the other two parts he's pasted in front of it anymore, i believe)
http://gcc.gnu.org/ml/gcc-patches/2004-11/msg02444.html

This patch applied, but didn't help, I'll try to get more details and hopefully a reduced testcase.


it should be applied because it helps us detect more simple evolutions properly.
" during a bootstrap
there are about 7000 cases that are in fact just simple affine
evolution functions, but that are mishandled for the moment because
the scalar evolution analyzer was not enough smart to transform them."


In addition, the patch to teach PRE to stop creating *more* wraparounds is also in the mail archives, see http://gcc.gnu.org/ml/gcc-patches/2004-11/msg02222.html

This patch doesn't apply any more.

Yes, i know. The attached should apply.

Attachment: constify2.diff
Description: Text document


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