State cleanups from jit branch

gcc/ChangeLog:
	* cgraph.c (cgraph_c_finalize): New function.
	* cgraph.h (cgraph_c_finalize): New prototype.
	(cgraphunit_c_finalize): New prototype.
	* cgraphunit.c (first_analyzed): Move from analyze_functions
	to file-scope.
	(first_analyzed_var): Likewise.
	(analyze_functions): Move static variables into file-scope.
	(cgraphunit_c_finalize): New function.
	* diagnostic.c (diagnostic_finish): Free the memory for
	context->classify_diagnostic and context->printer, running the
	destructor for the latter.
	(bt_stop): Use toplev::main.
	* dwarf2out.c (dwarf2out_finalize): New function.
	* dwarf2out.h (dwarf2out_c_finalize): New prototype.
	* gcse.c (gcse_c_finalize): New function.
	* gcse.h (gcse_c_finalize): New prototype.
	* ggc-page.c (init_ggc): Make idempotent.
	* input.c (input_location): Initialize to UNKNOWN_LOCATION.
	* ipa-cp.c (ipa_cp_c_finalize): New function.
	* ipa-prop.h (ipa_cp_c_finalize): New prototype.
	* ipa-pure-const.c (function_insertion_hook_holder): Move to be
	a field of class pass_ipa_pure_const.
	(node_duplication_hook_holder): Likewise.
	(node_removal_hook_holder): Likewise.
	(register_hooks): Convert to method...
	(pass_ipa_pure_const::register_hooks): ...here, converting
	static variable init_p into...
	(pass_ipa_pure_const::init_p): ...new field.
	(pure_const_generate_summary): Update invocation of
	register_hooks to invoke as a method of current_pass.
	(pure_const_read_summary): Likewise.
	(propagate): Convert to...
	(pass_ipa_pure_const::execute): ...method.
	* ipa-reference.c (ipa_init): Move static bool init_p from here
	to...
	(ipa_init_p): New file-scope variable, so that it can be reset
	when repeatedly invoking the compiler within one process by...
	(ipa_reference_c_finalize): New function.
	* ipa-reference.h (ipa_reference_c_finalize): New.
	* main.c (main): Replace invocation of toplev_main with
	construction of a toplev instance, and call its "main" method.
	* params.c (global_init_params): Add an assert that
	params_finished is false.
	(params_c_finalize): New.
	* params.h (params_c_finalize): New.
	* passes.c (execute_ipa_summary_passes): Set "current_pass" before
	invoking generate_summary, for the benefit of pass_ipa_pure_const.
	(ipa_write_summaries_2): Assign "pass" to "current_pass" global
	before calling write_summary hook.
	(ipa_write_optimization_summaries_1): Likewise when calling
	write_optimization_summary hook.
	(ipa_read_summaries_1): Likewise for read_summary hook.
	(ipa_read_optimization_summaries_1): Likewise for
	read_optimization_summary hook.
	(execute_ipa_stmt_fixups): Likewise.
	* stringpool.c (init_stringpool): Clean up if we're called more
	than once.
	* timevar.c (timevar_init): Ignore repeated calls.
	* toplev.c: Include "dwarf2out.h", "ipa-reference.h", "gcse.h",
	"ipa-prop.h".
	(general_init): Reset "input_location" to UNKNOWN_LOCATION.
	(initialize_rtl): Move static local "initialized_once"
	into file scope, and rename to...
	(rtl_initialized): New variable.
	(do_compile): Move timevar initialization from here to
	toplev::start_timevars.
	(toplev::toplev, toplev::~toplev, toplev::start_timevars,
	toplev::finalize): New functions.
	(toplev_main): Rename to...
	(toplev::main): ...this.
	* toplev.h (class toplev): New class.

From-SVN: r216522

1 files changed, 65 insertions, 48 deletions

diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c
index b5ded3e..c221cd0 100644
--- a/gcc/ipa-pure-const.c
+++ b/gcc/ipa-pure-const.c
@@ -115,10 +115,45 @@ typedef struct funct_state_d * funct_state;
 
 static vec<funct_state> funct_state_vec;
 
-/* Holders of ipa cgraph hooks: */
-static struct cgraph_node_hook_list *function_insertion_hook_holder;
-static struct cgraph_2node_hook_list *node_duplication_hook_holder;
-static struct cgraph_node_hook_list *node_removal_hook_holder;
+static bool gate_pure_const (void);
+
+namespace {
+
+const pass_data pass_data_ipa_pure_const =
+{
+  IPA_PASS, /* type */
+  "pure-const", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  TV_IPA_PURE_CONST, /* tv_id */
+  0, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  0, /* todo_flags_finish */
+};
+
+class pass_ipa_pure_const : public ipa_opt_pass_d
+{
+public:
+  pass_ipa_pure_const(gcc::context *ctxt);
+
+  /* opt_pass methods: */
+  bool gate (function *) { return gate_pure_const (); }
+  unsigned int execute (function *fun);
+
+  void register_hooks (void);
+
+private:
+  bool init_p;
+
+  /* Holders of ipa cgraph hooks: */
+  struct cgraph_node_hook_list *function_insertion_hook_holder;
+  struct cgraph_2node_hook_list *node_duplication_hook_holder;
+  struct cgraph_node_hook_list *node_removal_hook_holder;
+
+}; // class pass_ipa_pure_const
+
+} // anon namespace
 
 /* Try to guess if function body will always be visible to compiler
    when compiling the call and whether compiler will be able
@@ -881,11 +916,10 @@ remove_node_data (struct cgraph_node *node, void *data ATTRIBUTE_UNUSED)
 }
 
 
-static void
+void
+pass_ipa_pure_const::
 register_hooks (void)
 {
-  static bool init_p = false;
-
   if (init_p)
     return;
 
@@ -908,7 +942,8 @@ pure_const_generate_summary (void)
 {
   struct cgraph_node *node;
 
-  register_hooks ();
+  pass_ipa_pure_const *pass = static_cast <pass_ipa_pure_const *> (current_pass);
+  pass->register_hooks ();
 
   /* Process all of the functions.
 
@@ -989,7 +1024,9 @@ pure_const_read_summary (void)
   struct lto_file_decl_data *file_data;
   unsigned int j = 0;
 
-  register_hooks ();
+  pass_ipa_pure_const *pass = static_cast <pass_ipa_pure_const *> (current_pass);
+  pass->register_hooks ();
+
   while ((file_data = file_data_vec[j++]))
     {
       const char *data;
@@ -1470,8 +1507,9 @@ propagate_nothrow (void)
 /* Produce the global information by preforming a transitive closure
    on the local information that was produced by generate_summary.  */
 
-static unsigned int
-propagate (void)
+unsigned int
+pass_ipa_pure_const::
+execute (function *)
 {
   struct cgraph_node *node;
 
@@ -1500,44 +1538,23 @@ gate_pure_const (void)
 	  && !seen_error ());
 }
 
-namespace {
-
-const pass_data pass_data_ipa_pure_const =
+pass_ipa_pure_const::pass_ipa_pure_const(gcc::context *ctxt)
+    : ipa_opt_pass_d(pass_data_ipa_pure_const, ctxt,
+		     pure_const_generate_summary, /* generate_summary */
+		     pure_const_write_summary, /* write_summary */
+		     pure_const_read_summary, /* read_summary */
+		     NULL, /* write_optimization_summary */
+		     NULL, /* read_optimization_summary */
+		     NULL, /* stmt_fixup */
+		     0, /* function_transform_todo_flags_start */
+		     NULL, /* function_transform */
+		     NULL), /* variable_transform */
+  init_p(false),
+  function_insertion_hook_holder(NULL),
+  node_duplication_hook_holder(NULL),
+  node_removal_hook_holder(NULL)
 {
-  IPA_PASS, /* type */
-  "pure-const", /* name */
-  OPTGROUP_NONE, /* optinfo_flags */
-  TV_IPA_PURE_CONST, /* tv_id */
-  0, /* properties_required */
-  0, /* properties_provided */
-  0, /* properties_destroyed */
-  0, /* todo_flags_start */
-  0, /* todo_flags_finish */
-};
-
-class pass_ipa_pure_const : public ipa_opt_pass_d
-{
-public:
-  pass_ipa_pure_const (gcc::context *ctxt)
-    : ipa_opt_pass_d (pass_data_ipa_pure_const, ctxt,
-		      pure_const_generate_summary, /* generate_summary */
-		      pure_const_write_summary, /* write_summary */
-		      pure_const_read_summary, /* read_summary */
-		      NULL, /* write_optimization_summary */
-		      NULL, /* read_optimization_summary */
-		      NULL, /* stmt_fixup */
-		      0, /* function_transform_todo_flags_start */
-		      NULL, /* function_transform */
-		      NULL) /* variable_transform */
-  {}
-
-  /* opt_pass methods: */
-  virtual bool gate (function *) { return gate_pure_const (); }
-  virtual unsigned int execute (function *) { return propagate (); }
-
-}; // class pass_ipa_pure_const
-
-} // anon namespace
+}
 
 ipa_opt_pass_d *
 make_pass_ipa_pure_const (gcc::context *ctxt)