re PR middle-end/79399 (GCC fails to compile big source at -O0)

	PR middle-end/79399
	* ira-int.h (struct target_ira_int): Change x_max_struct_costs_size
	type from int to size_t.
	* ira-costs.c (struct_costs_size): Change type from int to size_t.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r245256

gcc/ChangeLog

 2017-02-07  Jakub Jelinek  <jakub@redhat.com>
+	    Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/79399
+	* ira-int.h (struct target_ira_int): Change x_max_struct_costs_size
+	type from int to size_t.
+	* ira-costs.c (struct_costs_size): Change type from int to size_t.
+
+2017-02-07  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/79386
 	* cprop.c (bypass_conditional_jumps): Initialize

gcc/ira-costs.c

@@ -74,7 +74,7 @@ static struct costs *costs;
 static struct costs *total_allocno_costs;
 
 /* It is the current size of struct costs.  */
-static int struct_costs_size;
+static size_t struct_costs_size;
 
 /* Return pointer to structure containing costs of allocno or pseudo
    with given NUM in array ARR.  */

gcc/ira-int.h

@@ -782,7 +782,7 @@ struct target_ira_int {
 
   /* Initialized once.  It is a maximal possible size of the allocated
      struct costs.  */
-  int x_max_struct_costs_size;
+  size_t x_max_struct_costs_size;
 
   /* Allocated and initialized once, and used to initialize cost values
      for each insn.  */