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, 0 insertions, 34 deletions

diff --git a/gcc/stmt.c b/gcc/stmt.c
index 8164c2d..86d4fe9 100644
--- a/gcc/stmt.c
+++ b/gcc/stmt.c
@@ -2042,40 +2042,6 @@ expand_decl (tree decl)
     }
 }
 
-/* Emit code to allocate T_SIZE bytes of dynamic stack space for ALLOC.  */
-void
-expand_stack_alloc (tree alloc, tree t_size)
-{
-  rtx address, dest, size;
-  tree var, type;
-
-  if (TREE_CODE (alloc) != ADDR_EXPR)
-    abort ();
-  var = TREE_OPERAND (alloc, 0);
-  if (TREE_CODE (var) != VAR_DECL)
-    abort ();
-
-  type = TREE_TYPE (var);
-
-  /* Compute the variable's size, in bytes.  */
-  size = expand_expr (t_size, NULL_RTX, VOIDmode, 0);
-  free_temp_slots ();
-
-  /* Allocate space on the stack for the variable.  */
-  address = XEXP (DECL_RTL (var), 0);
-  dest = allocate_dynamic_stack_space (size, address, TYPE_ALIGN (type));
-  if (dest != address)
-    emit_move_insn (address, dest);
-
-  /* Indicate the alignment we actually gave this variable.  */
-#ifdef STACK_BOUNDARY
-  DECL_ALIGN (var) = STACK_BOUNDARY;
-#else
-  DECL_ALIGN (var) = BIGGEST_ALIGNMENT;
-#endif
-  DECL_USER_ALIGN (var) = 0;
-}
-
 /* Emit code to save the current value of stack.  */
 rtx
 expand_stack_save (void)