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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/53773] Vectorizer generates non-canonical multiplies
Date: Mon, 30 Jul 2012 08:47:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53773

--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> 2012-07-30 08:47:35 UTC ---
On Sun, 29 Jul 2012, wschmidt at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53773
> 
> William J. Schmidt <wschmidt at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>          AssignedTo|unassigned at gcc dot       |wschmidt at gcc dot gnu.org
>                    |gnu.org                     |
>    Target Milestone|---                         |4.8.0
> 
> --- Comment #5 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-07-29 16:54:45 UTC ---
> I'll take this one.
> 
> I think the assumption of operand placement is too embedded to tease out
> easily, so I'm going to approach this by re-canonicalizing PLUS_EXPR,
> POINTER_PLUS_EXPR, and MULT_EXPR when operand swapping has occurred.  Are there
> other tree codes that could be broken?

I don't think so