re PR rtl-optimization/72855 (Long compile time due to integrity checking during…

re PR rtl-optimization/72855 (Long compile time due to integrity checking during dataflow analysis per loop)

2016-08-11  Richard Biener  <rguenther@suse.de>
	    Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR rtl-optimization/72855
	* df-core.c (df_verify): Turn off DF_VERIFY_SCHEDULED at end.


Co-Authored-By: Bill Schmidt <wschmidt@linux.vnet.ibm.com>

From-SVN: r239395

gcc/ChangeLog

+2016-08-11  Richard Biener  <rguenther@suse.de>
+	    Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	PR rtl-optimization/72855
+	* df-core.c (df_verify): Turn off DF_VERIFY_SCHEDULED at end.
+
 2016-08-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
 	PR target/72863

gcc/df-core.c

@@ -1833,6 +1833,7 @@ df_verify (void)
   if (df_live)
     df_live_verify_transfer_functions ();
 #endif
+  df->changeable_flags &= ~DF_VERIFY_SCHEDULED;
 }
 
 #ifdef DF_DEBUG_CFG