2014-04-16 17:18 GMT+04:00 Ilya Enkovich <enkovich....@gmail.com>:
> Hi,
>
> This patch add new field for varpool_node to mark vars requiring bounds
> initalization. These changes were previously reverted from 4.9 and I'll
> assume patch is OK for trunk if no objections arise.
>
> Patch was bootstrapped and tested for linux-x86_64.
>
> Thanks,
> Ilya
> --
> gcc/
>
> 2014-04-16 Ilya Enkovich <ilya.enkov...@intel.com>
>
> * cgraph.h (varpool_node): Add need_bounds_init field.
> * lto-cgraph.c (lto_output_varpool_node): Output
> need_bounds_init value.
> (input_varpool_node): Read need_bounds_init value.
> * varpool.c (dump_varpool_node): Dump need_bounds_init field.
>
>
> diff --git a/gcc/cgraph.h b/gcc/cgraph.h
> index 15310d8..a6a51cf 100644
> --- a/gcc/cgraph.h
> +++ b/gcc/cgraph.h
> @@ -640,6 +640,10 @@ public:
> /* Set when variable is scheduled to be assembled. */
> unsigned output : 1;
>
> + /* Set when variable has statically initialized pointer
> + or is a static bounds variable and needs initalization. */
> + unsigned need_bounds_init : 1;
> +
> /* Set if the variable is dynamically initialized, except for
> function local statics. */
> unsigned dynamically_initialized : 1;
> diff --git a/gcc/lto-cgraph.c b/gcc/lto-cgraph.c
> index 173067f..999ce3d 100644
> --- a/gcc/lto-cgraph.c
> +++ b/gcc/lto-cgraph.c
> @@ -585,6 +585,7 @@ lto_output_varpool_node (struct lto_simple_output_block
> *ob, varpool_node *node,
> && boundary_p && !DECL_EXTERNAL (node->decl), 1);
> /* in_other_partition. */
> }
> + bp_pack_value (&bp, node->need_bounds_init, 1);
> streamer_write_bitpack (&bp);
> if (node->same_comdat_group && !boundary_p)
> {
> @@ -1160,6 +1161,7 @@ input_varpool_node (struct lto_file_decl_data
> *file_data,
> node->analyzed = bp_unpack_value (&bp, 1);
> node->used_from_other_partition = bp_unpack_value (&bp, 1);
> node->in_other_partition = bp_unpack_value (&bp, 1);
> + node->need_bounds_init = bp_unpack_value (&bp, 1);
> if (node->in_other_partition)
> {
> DECL_EXTERNAL (node->decl) = 1;
> diff --git a/gcc/varpool.c b/gcc/varpool.c
> index acb5221..0eeb2b6 100644
> --- a/gcc/varpool.c
> +++ b/gcc/varpool.c
> @@ -205,6 +205,8 @@ dump_varpool_node (FILE *f, varpool_node *node)
> fprintf (f, " initialized");
> if (node->output)
> fprintf (f, " output");
> + if (node->need_bounds_init)
> + fprintf (f, " need-bounds-init");
> if (TREE_READONLY (node->decl))
> fprintf (f, " read-only");
> if (ctor_for_folding (node->decl) != error_mark_node)
Will install it in a couple of days.
Ilya
