asan_emit_stack_protection returns an insn

2014-08-19  David Malcolm  <dmalcolm@redhat.com>

	* asan.h (asan_emit_stack_protection): Strengthen return type from
	rtx to rtx_insn *.
	* asan.c (asan_emit_stack_protection): Likewise.  Add local
	"insns" to hold the return value.

From-SVN: r214189

gcc/ChangeLog

 2014-08-19  David Malcolm  <dmalcolm@redhat.com>
 
+	* asan.h (asan_emit_stack_protection): Strengthen return type from
+	rtx to rtx_insn *.
+	* asan.c (asan_emit_stack_protection): Likewise.  Add local
+	"insns" to hold the return value.
+
+2014-08-19  David Malcolm  <dmalcolm@redhat.com>
+
 	* basic-block.h (bb_note): Strengthen return type from rtx to
 	rtx_note *.
 	* sched-int.h (bb_note): Likewise.

gcc/asan.c

@@ -974,11 +974,12 @@ asan_function_start (void)
    assigned to PBASE, when not doing use after return protection, or
    corresponding address based on __asan_stack_malloc* return value.  */
 
-rtx
+rtx_insn *
 asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb,
 			    HOST_WIDE_INT *offsets, tree *decls, int length)
 {
   rtx shadow_base, shadow_mem, ret, mem, orig_base, lab;
+  rtx_insn *insns;
   char buf[30];
   unsigned char shadow_bytes[4];
   HOST_WIDE_INT base_offset = offsets[length - 1];
@@ -1248,9 +1249,9 @@ asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb,
   if (lab)
     emit_label (lab);
 
-  ret = get_insns ();
+  insns = get_insns ();
   end_sequence ();
-  return ret;
+  return insns;
 }
 
 /* Return true if DECL, a global var, might be overridden and needs

gcc/asan.h

@@ -23,8 +23,8 @@ along with GCC; see the file COPYING3.  If not see
 
 extern void asan_function_start (void);
 extern void asan_finish_file (void);
-extern rtx asan_emit_stack_protection (rtx, rtx, unsigned int, HOST_WIDE_INT *,
-				       tree *, int);
+extern rtx_insn *asan_emit_stack_protection (rtx, rtx, unsigned int,
+					     HOST_WIDE_INT *, tree *, int);
 extern bool asan_protect_global (tree);
 extern void initialize_sanitizer_builtins (void);
 extern tree asan_dynamic_init_call (bool);