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Remove first_pass_instance from pass_object_sizes

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2015-11-16  Tom de Vries  <tom@codesourcery.com>

	* passes.def: Add arg to pass_object_sizes pass instantiation.
	* tree-object-size.c (pass_object_sizes::pass_object_sizes): Initialize
	insert_min_max_p.
	(pass_object_sizes::set_pass_param): New member function.  Set
	insert_min_max_p.
	(pass_object_sizes::insert_min_max_p): New private member.
	(pass_object_sizes::execute): Use insert_min_max_p instead of
	first_pass_instance.

From-SVN: r230418
This commit is contained in:
Tom de Vries 2015-11-16 12:40:33 +00:00 committed by Tom de Vries
parent 5ce8d99a1b
commit 813ccd83ae
3 changed files with 24 additions and 5 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2015-11-16 Tom de Vries <tom@codesourcery.com>
* passes.def: Add arg to pass_object_sizes pass instantiation.
* tree-object-size.c (pass_object_sizes::pass_object_sizes): Initialize
insert_min_max_p.
(pass_object_sizes::set_pass_param): New member function. Set
insert_min_max_p.
(pass_object_sizes::insert_min_max_p): New private member.
(pass_object_sizes::execute): Use insert_min_max_p instead of
first_pass_instance.
2015-11-16 Tom de Vries <tom@codesourcery.com>
* passes.def: Add arg to pass_dominator pass instantiation.

4
gcc/passes.def
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@ -77,7 +77,7 @@ along with GCC; see the file COPYING3. If not see
NEXT_PASS (pass_all_early_optimizations);
PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
NEXT_PASS (pass_remove_cgraph_callee_edges);
NEXT_PASS (pass_object_sizes);
NEXT_PASS (pass_object_sizes, true /* insert_min_max_p */);
NEXT_PASS (pass_ccp);
/* After CCP we rewrite no longer addressed locals into SSA
form if possible. */
@ -164,7 +164,7 @@ along with GCC; see the file COPYING3. If not see
NEXT_PASS (pass_backprop);
NEXT_PASS (pass_phiprop);
NEXT_PASS (pass_forwprop);
NEXT_PASS (pass_object_sizes);
NEXT_PASS (pass_object_sizes, false /* insert_min_max_p */);
/* pass_build_alias is a dummy pass that ensures that we
execute TODO_rebuild_alias at this point. */
NEXT_PASS (pass_build_alias);

14
gcc/tree-object-size.c
View File

@ -1217,13 +1217,21 @@ class pass_object_sizes : public gimple_opt_pass
{
public:
pass_object_sizes (gcc::context *ctxt)
: gimple_opt_pass (pass_data_object_sizes, ctxt)
: gimple_opt_pass (pass_data_object_sizes, ctxt), insert_min_max_p (false)
{}
/* opt_pass methods: */
opt_pass * clone () { return new pass_object_sizes (m_ctxt); }
void set_pass_param (unsigned int n, bool param)
{
gcc_assert (n == 0);
insert_min_max_p = param;
}
virtual unsigned int execute (function *);
private:
/* Determines whether the pass instance creates MIN/MAX_EXPRs. */
bool insert_min_max_p;
}; // class pass_object_sizes
/* Dummy valueize function. */
@ -1250,12 +1258,12 @@ pass_object_sizes::execute (function *fun)
init_object_sizes ();
/* In the first pass instance, only attempt to fold
/* If insert_min_max_p, only attempt to fold
__builtin_object_size (x, 1) and __builtin_object_size (x, 3),
and rather than folding the builtin to the constant if any,
create a MIN_EXPR or MAX_EXPR of the __builtin_object_size
call result and the computed constant. */
if (first_pass_instance)
if (insert_min_max_p)
{
tree ost = gimple_call_arg (call, 1);
if (tree_fits_uhwi_p (ost))