[Bug tree-optimization/52019] [4.7 Regression] tree-ssa/ipa-split-5.c fails with -fno-tree-sra because of CLOBBERS

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52019

--- Comment #2 from rguenther at suse dot de <rguenther at suse dot de> 2012-02-22 10:16:01 UTC ---
On Wed, 22 Feb 2012, jakub at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52019
> 
> Jakub Jelinek <jakub at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |jakub at gcc dot gnu.org
> 
> --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-22 10:11:28 UTC ---
> Shouldn't IPA split just ignore clobbers when deciding whether to split?
> Then obviously it needs to handle them somehow, but IMHO the decision shouldn't
> take them into account.

Yes.  The question is how exactly ... the idea was that dropping them
(for 'unused' vars) would be appropriate.

Richard.