gimple.h (gimple_statement_base): Annotate with GTY chain_next.

2012-08-20  Richard Guenther  <rguenther@suse.de>

	* gimple.h (gimple_statement_base): Annotate with GTY chain_next.

From-SVN: r190525

gcc/ChangeLog

 2012-08-20  Richard Guenther  <rguenther@suse.de>
 
+	* gimple.h (gimple_statement_base): Annotate with GTY chain_next.
+
+2012-08-20  Richard Guenther  <rguenther@suse.de>
+
 	PR bootstrap/54326
 	* genoutput.c (note_constraint): Properly use CONST_CAST.
 

gcc/gimple.h

@@ -151,7 +151,7 @@ typedef struct
 /* Data structure definitions for GIMPLE tuples.  NOTE: word markers
    are for 64 bit hosts.  */
 
-struct GTY(()) gimple_statement_base {
+struct GTY((chain_next ("%h.next"))) gimple_statement_base {
   /* [ WORD 1 ]
      Main identifying code for a tuple.  */
   ENUM_BITFIELD(gimple_code) code : 8;