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df-problems.c (df_live_scratch): Convert to bitmap_head. 

* df-problems.c (df_live_scratch): Convert to bitmap_head.
	(df_live_alloc): Initialize df_live_scratch when initializing
	problem_data.
	(df_live_transfer_function): Update uses of df_live_scratch.
	(df_live_free): Free problem_data; clear df_live_scratch before
	releasing the obstack.
	(df_md_free): Free problem data.

From-SVN: r160612
This commit is contained in:
Jan Hubicka 2010-06-11 16:33:28 +02:00 committed by Jan Hubicka
parent 7ea6b6cf97
commit d725a1a5c0
2 changed files with 19 additions and 8 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2010-06-11 Jan Hubicka <jh@suse.cz>
* df-problems.c (df_live_scratch): Convert to bitmap_head.
(df_live_alloc): Initialize df_live_scratch when initializing
problem_data.
(df_live_transfer_function): Update uses of df_live_scratch.
(df_live_free): Free problem_data; clear df_live_scratch before
releasing the obstack.
(df_md_free): Free problem data.
2010-06-11 Jan Hubicka <jh@suse.cz>
* doc/invoke.texi (Wsuggest-attribute): Document.

17
gcc/df-problems.c
View File

@ -1368,7 +1368,7 @@ struct df_live_problem_data
/* Scratch var used by transfer functions. This is used to implement
an optimization to reduce the amount of space used to compute the
combined lr and live analysis. */
static bitmap df_live_scratch;
static bitmap_head df_live_scratch;
/* Set basic block info. */
@ -1423,9 +1423,8 @@ df_live_alloc (bitmap all_blocks ATTRIBUTE_UNUSED)
problem_data->out = NULL;
problem_data->in = NULL;
bitmap_obstack_initialize (&problem_data->live_bitmaps);
bitmap_initialize (&df_live_scratch, &problem_data->live_bitmaps);
}
if (!df_live_scratch)
df_live_scratch = BITMAP_ALLOC (&problem_data->live_bitmaps);
df_grow_bb_info (df_live);
@ -1595,12 +1594,12 @@ df_live_transfer_function (int bb_index)
/* We need to use a scratch set here so that the value returned from this
function invocation properly reflects whether the sets changed in a
significant way; i.e. not just because the lr set was anded in. */
bitmap_and (df_live_scratch, gen, &bb_lr_info->out);
bitmap_and (&df_live_scratch, gen, &bb_lr_info->out);
/* No register may reach a location where it is not used. Thus
we trim the rr result to the places where it is used. */
bitmap_and_into (in, &bb_lr_info->in);
return bitmap_ior_and_compl (out, df_live_scratch, in, kill);
return bitmap_ior_and_compl (out, &df_live_scratch, in, kill);
}
@ -1643,10 +1642,10 @@ df_live_free (void)
free_alloc_pool (df_live->block_pool);
df_live->block_info_size = 0;
free (df_live->block_info);
bitmap_clear (&df_live_scratch);
bitmap_obstack_release (&problem_data->live_bitmaps);
if (df_live_scratch)
BITMAP_FREE (df_live_scratch);
free (problem_data);
df_live->problem_data = NULL;
}
BITMAP_FREE (df_live->out_of_date_transfer_functions);
free (df_live);
@ -4545,6 +4544,8 @@ df_md_free (void)
bitmap_obstack_release (&problem_data->md_bitmaps);
free_alloc_pool (df_md->block_pool);
free (problem_data);
df_md->problem_data = NULL;
df_md->block_info_size = 0;
free (df_md->block_info);