builtins.def (BUILT_IN_STACK_ALLOC): Remove.

        * builtins.def (BUILT_IN_STACK_ALLOC): Remove.
        * builtins.c (expand_builtin) <BUILT_IN_STACK_ALLOC>: Remove.
        * dwarf2out.c (loc_descriptor): Handle PARALLEL here ...
        (add_location_or_const_value_attribute): ... not here.  Use
        loc_descriptor_from_tree if possible.
        (loc_descriptor_from_tree_1): Rename from loc_descriptor_from_tree.
        Simplify address handling.  Handle DECL_VALUE_EXPR.  Handle register
        values specially.
        (loc_descriptor_from_tree): New.  Update callers.
        * expr.c (expand_var): Ignore DECL_VALUE_EXPR variables.
        * gimplify.c (gimplify_decl_expr): Lower variable sized types to
        pointer plus dereference.  Set DECL_VALUE_EXPR.  Set save_stack.
        (gimplify_call_expr): Do not recognize BUILT_IN_STACK_ALLOC
        and BUILT_IN_STACK_RESTORE.
        (gimplify_expr): Lower DECL_VALUE_EXPR decls.
        * stmt.c (expand_stack_alloc): Remove.
        * tree-mudflap.c (mx_register_decls): Don't look for
        BUILT_IN_STACK_ALLOC.
        * tree-nested.c (convert_local_reference): Likewise.
        * tree.h (DECL_VALUE_EXPR): New.
ada/
        * utils.c (gnat_install_builtins): Remove __builtin_stack_alloc,
        add __builtin_alloca.
fortran/
        * f95-lang.c (gfc_init_builtin_functions): Remove
         __builtin_stack_alloc, add __builtin_alloca.
        * trans-array.c (gfc_trans_auto_array_allocation): Use DECL_EXPR.
        * trans-decl.c (gfc_trans_auto_character_variable): Likewise.

From-SVN: r85794

1 files changed, 1 insertions, 35 deletions

diff --git a/gcc/tree-nested.c b/gcc/tree-nested.c
index e884260..7ae506e 100644
--- a/gcc/tree-nested.c
+++ b/gcc/tree-nested.c
@@ -855,7 +855,7 @@ convert_local_reference (tree *tp, int *walk_subtrees, void *data)
 {
   struct walk_stmt_info *wi = data;
   struct nesting_info *info = wi->info;
-  tree t = *tp, field, x, y;
+  tree t = *tp, field, x;
 
   switch (TREE_CODE (t))
     {
@@ -909,40 +909,6 @@ convert_local_reference (tree *tp, int *walk_subtrees, void *data)
       }
       break;
 
-    case CALL_EXPR:
-      *walk_subtrees = 1;
-
-      /* Ready for some fun?  We need to recognize
-	    __builtin_stack_alloc (&x, n)
-	 and insert
-	    FRAME.x = &x
-	 after that.  X should have use_pointer_in_frame set.  We can't
-	 do this any earlier, since we can't meaningfully evaluate &x.  */
-
-      x = get_callee_fndecl (t);
-      if (!x || DECL_BUILT_IN_CLASS (x) != BUILT_IN_NORMAL)
-	break;
-      if (DECL_FUNCTION_CODE (x) != BUILT_IN_STACK_ALLOC)
-	break;
-      t = TREE_VALUE (TREE_OPERAND (t, 1));
-      if (TREE_CODE (t) != ADDR_EXPR)
-	abort ();
-      t = TREE_OPERAND (t, 0);
-      if (TREE_CODE (t) != VAR_DECL)
-	abort ();
-      field = lookup_field_for_decl (info, t, NO_INSERT);
-      if (!field)
-	break;
-      if (!use_pointer_in_frame (t))
-	abort ();
-
-      x = build_addr (t);
-      y = get_frame_field (info, info->context, field, &wi->tsi);
-      x = build (MODIFY_EXPR, void_type_node, y, x);
-      SET_EXPR_LOCUS (x, EXPR_LOCUS (tsi_stmt (wi->tsi)));
-      tsi_link_after (&wi->tsi, x, TSI_SAME_STMT);
-      break;
-
     case REALPART_EXPR:
     case IMAGPART_EXPR:
     case COMPONENT_REF: