Fold vector to scalar optimization

[Richard Guenther]

On Wed, Nov 3, 2010 at 7:11 PM, Artem Shinkarov
<artyom.shinkaroff@gmail.com> wrote:
> ChangeLog:
>
> 2010-11-01  Artjoms Sinkarovs <artyom.shinakroff@gmail.com>
>
>    gcc/
>    * passes.c (init_optimization_passes): Move veclower after SSA.
>    * tree-vect-generic.c (expand_vector_operations_1): Handle conversion.
>
>    gcc/testsuite/
>    * gcc.dg/vec-scal-opt.c: New testcase.
>    * gcc.dg/vec-scal-opt1.c: New testcase.
>    * gcc.dg/vec-scal-opt2.c: New testcase.

I am retesting the following variant which I slightly changed and will commit it
after that succeeded.

Richard.

2010-11-03  Artjoms Sinkarovs <artyom.shinakroff@gmail.com>
        Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Move veclower after SSA.
        * tree-vect-generic.c (uniform_vector_p): New function.
        (expand_vector_operations_1): Handle conversion.

        testsuite/
        * gcc.dg/vec-scal-opt.c: New testcase.
        * gcc.dg/vec-scal-opt1.c: New testcase.
        * gcc.dg/vec-scal-opt2.c: New testcase.
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