tree-pass.h (TODO_do_not_ggc_collect): New.

2013-04-12  Richard Biener  <rguenther@suse.de>

	* tree-pass.h (TODO_do_not_ggc_collect): New.
	* passes.c (execute_one_ipa_transform_pass): Honor
	TODO_do_not_ggc_collect.
	(execute_one_pass): Likewise.

	Revert
	2013-04-10  Richard Biener  <rguenther@suse.de>

	* passes.c (init_optimization_passes): Remove reload pass.
	* ira.c (do_reload): Merge into ...
	(ira): ... this.
	(rest_of_handle_reload): Remove.
	(pass_reload): Likewise.
	* config/i386/i386.c (ix86_option_override): Refer to ira instead
	of reload for vzeroupper pass placement.

	* g++.dg/pr55604.C: Use -fdump-rtl-ira.

From-SVN: r197865

7 files changed, 74 insertions, 8 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aa33272..cf92ee9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,21 @@
+2013-04-12  Richard Biener  <rguenther@suse.de>
+
+	* tree-pass.h (TODO_do_not_ggc_collect): New.
+	* passes.c (execute_one_ipa_transform_pass): Honor
+	TODO_do_not_ggc_collect.
+	(execute_one_pass): Likewise.
+
+	Revert
+	2013-04-10  Richard Biener  <rguenther@suse.de>
+
+	* passes.c (init_optimization_passes): Remove reload pass.
+	* ira.c (do_reload): Merge into ...
+	(ira): ... this.
+	(rest_of_handle_reload): Remove.
+	(pass_reload): Likewise.
+	* config/i386/i386.c (ix86_option_override): Refer to ira instead
+	of reload for vzeroupper pass placement.
+
 2013-04-12  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/56918
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 21ebd0f..9f5a24f 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3930,7 +3930,7 @@ static void
 ix86_option_override (void)
 {
   static struct register_pass_info insert_vzeroupper_info
-    = { &pass_insert_vzeroupper.pass, "ira",
+    = { &pass_insert_vzeroupper.pass, "reload",
 	1, PASS_POS_INSERT_AFTER
       };
 
diff --git a/gcc/ira.c b/gcc/ira.c
index edfc974..cfa287f 100644
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -4359,8 +4359,6 @@ ira (FILE *f)
   int rebuild_p;
   bool saved_flag_caller_saves = flag_caller_saves;
   enum ira_region saved_flag_ira_region = flag_ira_region;
-  basic_block bb;
-  bool need_dce;
 
   ira_conflicts_p = optimize > 0;
 
@@ -4590,6 +4588,13 @@ ira (FILE *f)
       flag_caller_saves = saved_flag_caller_saves;
       flag_ira_region = saved_flag_ira_region;
     }
+}
+
+static void
+do_reload (void)
+{
+  basic_block bb;
+  bool need_dce;
 
   if (flag_ira_verbose < 10)
     ira_dump_file = dump_file;
@@ -4629,6 +4634,8 @@ ira (FILE *f)
 
   timevar_pop (TV_RELOAD);
 
+  timevar_push (TV_IRA);
+
   if (ira_conflicts_p && ! ira_use_lra_p)
     {
       ira_free (ira_spilled_reg_stack_slots);
@@ -4686,6 +4693,8 @@ ira (FILE *f)
 
   if (need_dce && optimize)
     run_fast_dce ();
+
+  timevar_pop (TV_IRA);
 }
 
 /* Run the integrated register allocator.  */
@@ -4712,6 +4721,33 @@ struct rtl_opt_pass pass_ira =
   0,                                    /* properties_provided */
   0,                                    /* properties_destroyed */
   0,                                    /* todo_flags_start */
-  0                                     /* todo_flags_finish */
+  TODO_do_not_ggc_collect               /* todo_flags_finish */
+ }
+};
+
+static unsigned int
+rest_of_handle_reload (void)
+{
+  do_reload ();
+  return 0;
+}
+
+struct rtl_opt_pass pass_reload =
+{
+ {
+  RTL_PASS,
+  "reload",                             /* name */
+  OPTGROUP_NONE,                        /* optinfo_flags */
+  NULL,                                 /* gate */
+  rest_of_handle_reload,	        /* execute */
+  NULL,                                 /* sub */
+  NULL,                                 /* next */
+  0,                                    /* static_pass_number */
+  TV_RELOAD,	                        /* tv_id */
+  0,                                    /* properties_required */
+  0,                                    /* properties_provided */
+  0,                                    /* properties_destroyed */
+  0,                                    /* todo_flags_start */
+  0					/* todo_flags_finish */
  }
 };
diff --git a/gcc/passes.c b/gcc/passes.c
index c9911b9..47dca56 100644
--- a/gcc/passes.c
+++ b/gcc/passes.c
@@ -1620,6 +1620,7 @@ init_optimization_passes (void)
       NEXT_PASS (pass_sms);
       NEXT_PASS (pass_sched);
       NEXT_PASS (pass_ira);
+      NEXT_PASS (pass_reload);
       NEXT_PASS (pass_postreload);
 	{
 	  struct opt_pass **p = &pass_postreload.pass.sub;
@@ -2186,7 +2187,8 @@ execute_one_ipa_transform_pass (struct cgraph_node *node,
   current_pass = NULL;
 
   /* Signal this is a suitable GC collection point.  */
-  ggc_collect ();
+  if (!(todo_after & TODO_do_not_ggc_collect))
+    ggc_collect ();
 }
 
 /* For the current function, execute all ipa transforms. */
@@ -2365,7 +2367,8 @@ execute_one_pass (struct opt_pass *pass)
   current_pass = NULL;
 
   /* Signal this is a suitable GC collection point.  */
-  ggc_collect ();
+  if (!((todo_after | pass->todo_flags_finish) & TODO_do_not_ggc_collect))
+    ggc_collect ();
 
   return true;
 }
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6272c49..57b3c5b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2013-04-12  Richard Biener  <rguenther@suse.de>
+
+	Revert
+	2013-04-10  Richard Biener  <rguenther@suse.de>
+
+	* g++.dg/pr55604.C: Use -fdump-rtl-ira.
+
 2013-04-12  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/56845
diff --git a/gcc/testsuite/g++.dg/pr55604.C b/gcc/testsuite/g++.dg/pr55604.C
index b2e7af0..135ae4d 100644
--- a/gcc/testsuite/g++.dg/pr55604.C
+++ b/gcc/testsuite/g++.dg/pr55604.C
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O -fdump-rtl-ira" } */
+/* { dg-options "-O -fdump-rtl-reload" } */
 
 main ()
 {
@@ -8,4 +8,4 @@ main ()
   __builtin_printf ("%d %s\n", t, s);
 }
 
-/* { dg-final { cleanup-rtl-dump "ira" } } */
+/* { dg-final { cleanup-rtl-dump "reload" } } */
diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h
index a6bb4fa..b8c59a7 100644
--- a/gcc/tree-pass.h
+++ b/gcc/tree-pass.h
@@ -154,6 +154,7 @@ struct simple_ipa_opt_pass
   (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp)
 
 /* To-do flags.  */
+#define TODO_do_not_ggc_collect		(1 << 1)
 #define TODO_verify_ssa			(1 << 2)
 #define TODO_verify_flow		(1 << 3)
 #define TODO_verify_stmts		(1 << 4)
@@ -445,6 +446,7 @@ extern struct rtl_opt_pass pass_mode_switching;
 extern struct rtl_opt_pass pass_sms;
 extern struct rtl_opt_pass pass_sched;
 extern struct rtl_opt_pass pass_ira;
+extern struct rtl_opt_pass pass_reload;
 extern struct rtl_opt_pass pass_clean_state;
 extern struct rtl_opt_pass pass_branch_prob;
 extern struct rtl_opt_pass pass_value_profile_transformations;