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df-scan.c (struct df_scan_problem_data): Remove the mw_link_pool alloc pool. 

2008-06-08  Steven Bosscher  <stevenb.gcc@gmail.com>

	* df-scan.c (struct df_scan_problem_data): Remove the
	mw_link_pool alloc pool.
	(df_scan_free_internal): Don't free it.
	(df_scan_alloc): Don't allocate it.
	* df.h (struct df_link): Update comment.

From-SVN: r136576
This commit is contained in:
Steven Bosscher 2008-06-09 01:56:08 +00:00 committed by Kenneth Zadeck
parent 1a4322553b
commit fed6152d2e
3 changed files with 10 additions and 8 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2008-06-08 Steven Bosscher <stevenb.gcc@gmail.com>
* df-scan.c (struct df_scan_problem_data): Remove the
mw_link_pool alloc pool.
(df_scan_free_internal): Don't free it.
(df_scan_alloc): Don't allocate it.
* df.h (struct df_link): Update comment.
2008-06-08 Nathan Sidwell <nathan@codesourcery.com>
* except.h: Correct checks for when SJLJ exceptions must be used.

5
gcc/df-scan.c
View File

@ -166,7 +166,6 @@ struct df_scan_problem_data
alloc_pool insn_pool;
alloc_pool reg_pool;
alloc_pool mw_reg_pool;
alloc_pool mw_link_pool;
bitmap_obstack reg_bitmaps;
bitmap_obstack insn_bitmaps;
};
@ -221,7 +220,6 @@ df_scan_free_internal (void)
free_alloc_pool (problem_data->insn_pool);
free_alloc_pool (problem_data->reg_pool);
free_alloc_pool (problem_data->mw_reg_pool);
free_alloc_pool (problem_data->mw_link_pool);
bitmap_obstack_release (&problem_data->reg_bitmaps);
bitmap_obstack_release (&problem_data->insn_bitmaps);
free (df_scan->problem_data);
@ -312,9 +310,6 @@ df_scan_alloc (bitmap all_blocks ATTRIBUTE_UNUSED)
problem_data->mw_reg_pool
= create_alloc_pool ("df_scan_mw_reg pool",
sizeof (struct df_mw_hardreg), block_size);
problem_data->mw_link_pool
= create_alloc_pool ("df_scan_mw_link pool",
sizeof (struct df_link), block_size);
bitmap_obstack_initialize (&problem_data->reg_bitmaps);
bitmap_obstack_initialize (&problem_data->insn_bitmaps);

5
gcc/df.h
View File

@ -409,9 +409,8 @@ struct df_ref_extract
enum machine_mode mode;
};
/* These links are used for two purposes:
1) def-use or use-def chains.
2) Multiword hard registers that underly a single hardware register. */
/* These links are used for ref-ref chains. Currently only DEF-USE and
USE-DEF chains can be built by DF. */
struct df_link
{
struct df_ref *ref;