Re: [PATCH, vec-tails 06/10] Mark the first vector store generated for a scalar store

[Jeff Law]

On 05/19/2016 01:43 PM, Ilya Enkovich wrote:

Hi,

This patch STMT_VINFO_FIRST_COPY_P field to statement vec info.
This is used to find the first vector store generated for a
scalar one.  For other statements I use original scalar statement
to find the first and following vector statement.  For stores
original scalar statement is removed and this new fiels is used
to mark a chain start.  Also original data reference and vector
type are preserved in the first vector statement for masking
purposes.

Thanks,
Ilya
--
gcc/

2016-05-19  Ilya Enkovich  <ilya.enkov...@intel.com>

        * tree-vect-stmts.c (vectorizable_mask_load_store): Mark
        the first copy of generated vector stores.
        (vectorizable_store): Mark the first copy of generated
        vector stores and provide it with vectype and the original
        data reference.
        * tree-vectorizer.h (struct _stmt_vec_info): Add first_copy_p
        field.
        (STMT_VINFO_FIRST_COPY_P): New.

OK when the rest of the patch kit is approved.

jeff