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tree-flow.h (execute_update_addresses_taken): Adjust. 

* tree-flow.h (execute_update_addresses_taken): Adjust.
	* tree-ssa.c (maybe_optimize_var): Tweak comment and dump messages.
	(execute_update_addresses_taken): Remove parameter and OPTIMIZE test.
	* passes.c (execute_function_todo): Adjust calls to above function.

From-SVN: r164571
This commit is contained in:
Eric Botcazou 2010-09-23 22:06:18 +00:00 committed by Eric Botcazou
parent 962b8a0e7e
commit f61c8291cb
4 changed files with 28 additions and 26 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2010-09-23 Eric Botcazou <ebotcazou@adacore.com>
* tree-flow.h (execute_update_addresses_taken): Adjust.
* tree-ssa.c (maybe_optimize_var): Tweak comment and dump messages.
(execute_update_addresses_taken): Remove parameter and OPTIMIZE test.
* passes.c (execute_function_todo): Adjust calls to above function.
2010-09-23 Anatoly Sokolov <aesok@post.ru>
* config/arm/arm.h (OUTPUT_ADDR_CONST_EXTRA): Remove.

8
gcc/passes.c
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@ -1206,15 +1206,13 @@ execute_function_todo (void *data)
cfun->last_verified &= ~TODO_verify_ssa;
}
if (flags & TODO_update_address_taken)
execute_update_addresses_taken (true);
if (flags & TODO_rebuild_alias)
{
if (!(flags & TODO_update_address_taken))
execute_update_addresses_taken (true);
execute_update_addresses_taken ();
compute_may_aliases ();
}
else if (optimize && (flags & TODO_update_address_taken))
execute_update_addresses_taken ();
if (flags & TODO_remove_unused_locals)
remove_unused_locals ();

2
gcc/tree-flow.h
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@ -559,7 +559,7 @@ extern void delete_tree_ssa (void);
extern bool ssa_undefined_value_p (tree);
extern void warn_uninit (tree, const char *, void *);
extern unsigned int warn_uninitialized_vars (bool);
extern void execute_update_addresses_taken (bool);
extern void execute_update_addresses_taken (void);
/* Call-back function for walk_use_def_chains(). At each reaching
definition, a function with this prototype is called. */

37
gcc/tree-ssa.c
View File

@ -1885,9 +1885,9 @@ non_rewritable_mem_ref_base (tree ref)
return NULL_TREE;
}
/* When possible, clear ADDRESSABLE bit or set the REGISTER bit
and mark the variable VAR for conversion into SSA. Returns true
when updating stmts is required. */
/* When possible, clear TREE_ADDRESSABLE bit or set DECL_GIMPLE_REG_P bit and
mark the variable VAR for conversion into SSA. Return true when updating
stmts is required. */
static bool
maybe_optimize_var (tree var, bitmap addresses_taken, bitmap not_reg_needs)
@ -1918,11 +1918,12 @@ maybe_optimize_var (tree var, bitmap addresses_taken, bitmap not_reg_needs)
update_vops = true;
if (dump_file)
{
fprintf (dump_file, "No longer having address taken ");
fprintf (dump_file, "No longer having address taken: ");
print_generic_expr (dump_file, var, 0);
fprintf (dump_file, "\n");
}
}
if (!DECL_GIMPLE_REG_P (var)
&& !bitmap_bit_p (not_reg_needs, DECL_UID (var))
&& (TREE_CODE (TREE_TYPE (var)) == COMPLEX_TYPE
@ -1935,7 +1936,7 @@ maybe_optimize_var (tree var, bitmap addresses_taken, bitmap not_reg_needs)
update_vops = true;
if (dump_file)
{
fprintf (dump_file, "Decl is now a gimple register ");
fprintf (dump_file, "Now a gimple register: ");
print_generic_expr (dump_file, var, 0);
fprintf (dump_file, "\n");
}
@ -1947,14 +1948,14 @@ maybe_optimize_var (tree var, bitmap addresses_taken, bitmap not_reg_needs)
/* Compute TREE_ADDRESSABLE and DECL_GIMPLE_REG_P for local variables. */
void
execute_update_addresses_taken (bool do_optimize)
execute_update_addresses_taken (void)
{
tree var;
gimple_stmt_iterator gsi;
basic_block bb;
bitmap addresses_taken = BITMAP_ALLOC (NULL);
bitmap not_reg_needs = BITMAP_ALLOC (NULL);
bool update_vops = false;
tree var;
unsigned i;
/* Collect into ADDRESSES_TAKEN all variables whose address is taken within
@ -2047,20 +2048,16 @@ execute_update_addresses_taken (bool do_optimize)
}
}
/* When possible, clear ADDRESSABLE bit or set the REGISTER bit
and mark variable for conversion into SSA. */
if (optimize && do_optimize)
{
/* We cannot iterate over all referenced vars as that can contain
unused vars from BLOCK trees which cause code generation
differences for -g vs. -g0. */
for (var = DECL_ARGUMENTS (cfun->decl); var; var = DECL_CHAIN (var))
update_vops |= maybe_optimize_var (var, addresses_taken, not_reg_needs);
FOR_EACH_VEC_ELT (tree, cfun->local_decls, i, var)
update_vops |= maybe_optimize_var (var, addresses_taken, not_reg_needs);
}
/* We cannot iterate over all referenced vars because that can contain
unused vars from BLOCK trees, which causes code generation differences
for -g vs. -g0. */
for (var = DECL_ARGUMENTS (cfun->decl); var; var = DECL_CHAIN (var))
update_vops |= maybe_optimize_var (var, addresses_taken, not_reg_needs);
/* Operand caches needs to be recomputed for operands referencing the updated
FOR_EACH_VEC_ELT (tree, cfun->local_decls, i, var)
update_vops |= maybe_optimize_var (var, addresses_taken, not_reg_needs);
/* Operand caches need to be recomputed for operands referencing the updated
variables. */
if (update_vops)
{