rtti.c (involves_incomplete_p): Add fall through comment.

	* rtti.c (involves_incomplete_p): Add fall through comment.

	* dwarf2out.c (loc_descriptor): Add fall through comment.
	(add_const_value_attribute): Likewise.

From-SVN: r240624

gcc/ChangeLog

+2016-09-29  Marek Polacek  <polacek@redhat.com>
+
+	* dwarf2out.c (loc_descriptor): Add fall through comment.
+	(add_const_value_attribute): Likewise.
+
 2016-09-29  Matthew Wahab  <matthew.wahab@arm.com>
 
 	* config/arm/arm.md (*arm_movsi_insn): Replace "t2" arch attribute

gcc/cp/ChangeLog

+2016-09-29  Marek Polacek  <polacek@redhat.com>
+
+	* rtti.c (involves_incomplete_p): Add fall through comment.
+
 2016-09-28  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/77467

gcc/cp/rtti.c

@@ -855,7 +855,7 @@ involves_incomplete_p (tree type)
     case UNION_TYPE:
       if (!COMPLETE_TYPE_P (type))
 	return true;
-
+      /* Fall through.  */
     default:
       /* All other types do not involve incomplete class types.  */
       return false;

gcc/dwarf2out.c

@@ -14554,6 +14554,7 @@ loc_descriptor (rtx rtl, machine_mode mode,
     case SYMBOL_REF:
       if (!const_ok_for_output (rtl))
 	break;
+      /* FALLTHROUGH */
     case LABEL_REF:
       if (mode != VOIDmode && GET_MODE_SIZE (mode) == DWARF2_ADDR_SIZE
 	  && (dwarf_version >= 4 || !dwarf_strict))
@@ -17201,6 +17202,7 @@ add_const_value_attribute (dw_die_ref die, rtx rtl)
     case SYMBOL_REF:
       if (!const_ok_for_output (rtl))
 	return false;
+      /* FALLTHROUGH */
     case LABEL_REF:
       if (dwarf_version >= 4 || !dwarf_strict)
 	goto rtl_addr;