re PR bootstrap/63280 (Double free in GCC compiled with LTO and -O3.)

gcc/
	PR bootstrap/63280
	* target-globals.c (target_globals::~target_globals): Fix location
	of ira_int destruction.

From-SVN: r215515

gcc/ChangeLog

+2014-09-23  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR bootstrap/63280
+	* target-globals.c (target_globals::~target_globals): Fix location
+	of ira_int destruction.
+
 2014-09-23  Renlin Li  <renlin.li@arm.com>
 
 	* config/aarch64/aarch64.md (return): New.

gcc/target-globals.c

@@ -121,10 +121,10 @@ save_target_globals_default_opts ()
 
 target_globals::~target_globals ()
 {
-  ira_int->~target_ira_int ();
   /* default_target_globals points to static data so shouldn't be freed.  */
   if (this != &default_target_globals)
     {
+      ira_int->~target_ira_int ();
       hard_regs->finalize ();
       XDELETE (flag_state);
       XDELETE (regs);