[Ada] Make pragma Inspection_Point work for constants

gcc/ada/

	* gcc-interface/trans.c (lvalue_required_p) <N_Pragma>: New case.
	<N_Pragma_Argument_Association>: Likewise.
	(Pragma_to_gnu) <Pragma_Inspection_Point>: Fetch the corresponding
	variable of a constant before marking it as addressable.

diff --git a/gcc/ada/gcc-interface/trans.c b/gcc/ada/gcc-interface/trans.c
index f767cc6..47fbbc9 100644 (file)
--- a/gcc/ada/gcc-interface/trans.c
+++ b/gcc/ada/gcc-interface/trans.c
@@ -865,6 +865,20 @@ lvalue_required_p (Node_Id gnat_node, tree gnu_type, bool constant,
              || must_pass_by_ref (gnu_type)
              || default_pass_by_ref (gnu_type));
 
+    case N_Pragma_Argument_Association:
+      return lvalue_required_p (gnat_parent, gnu_type, constant,
+                               address_of_constant);
+
+    case N_Pragma:
+      if (Is_Pragma_Name (Chars (Pragma_Identifier (gnat_parent))))
+       {
+         const unsigned char id
+           = Get_Pragma_Id (Chars (Pragma_Identifier (gnat_parent)));
+         return id == Pragma_Inspection_Point;
+       }
+      else
+       return 0;
+
     case N_Indexed_Component:
       /* Only the array expression can require an lvalue.  */
       if (Prefix (gnat_parent) != gnat_node)
@@ -1387,6 +1401,9 @@ Pragma_to_gnu (Node_Id gnat_node)
          char *comment;
 #endif
          gnu_expr = maybe_unconstrained_array (gnu_expr);
+         if (TREE_CODE (gnu_expr) == CONST_DECL
+             && DECL_CONST_CORRESPONDING_VAR (gnu_expr))
+           gnu_expr = DECL_CONST_CORRESPONDING_VAR (gnu_expr);
          gnat_mark_addressable (gnu_expr);
 
 #ifdef ASM_COMMENT_START