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Re: Handle a + ~a in reassoc


On Wed, 14 Apr 2010, Richard Guenther wrote:

> 
> Btw, did you check where and why we generate the ~a in the first
> place?  It appears in the .original dump for your testcase.  I suppose
> this is a folding from the pre-tree-ssa days and nowadays should
> be done during/before expansion or by combine.

fold-const.c:10773 does the folding.  It was added as one of the fixes for
PR15784 in March 2005 (thus after the tree-ssa merge).

> 
> Richard.
> 
> > Thanks.
> > Alexander Monakov
>
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