* c-tree.h (C_DECL_REGISTER): New.

[pf3gnuchains/gcc-fork.git] / gcc / c-typeck.c

diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 59bccab..64b568c 100644 (file)
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -1525,7 +1525,7 @@ build_array_ref (tree array, tree index)
          tree foo = array;
          while (TREE_CODE (foo) == COMPONENT_REF)
            foo = TREE_OPERAND (foo, 0);
-         if (TREE_CODE (foo) == VAR_DECL && DECL_REGISTER (foo))
+         if (TREE_CODE (foo) == VAR_DECL && C_DECL_REGISTER (foo))
            pedwarn ("ISO C forbids subscripting `register' array");
          else if (! flag_isoc99 && ! lvalue_p (foo))
            pedwarn ("ISO C90 forbids subscripting non-lvalue array");
@@ -2495,7 +2495,7 @@ build_unary_op (enum tree_code code, tree xarg, int flag)
 
 /* Return nonzero if REF is an lvalue valid for this language.
    Lvalues can be assigned, unless their type has TYPE_READONLY.
-   Lvalues can have their address taken, unless they have DECL_REGISTER.  */
+   Lvalues can have their address taken, unless they have C_DECL_REGISTER.  */
 
 int
 lvalue_p (tree ref)
@@ -2604,7 +2604,7 @@ c_mark_addressable (tree exp)
       case CONST_DECL:
       case PARM_DECL:
       case RESULT_DECL:
-       if (DECL_REGISTER (x) && !TREE_ADDRESSABLE (x)
+       if (C_DECL_REGISTER (x)
            && DECL_NONLOCAL (x))
          {
            if (TREE_PUBLIC (x) || TREE_STATIC (x) || DECL_EXTERNAL (x))
@@ -2616,7 +2616,7 @@ c_mark_addressable (tree exp)
            pedwarn ("register variable `%s' used in nested function",
                     IDENTIFIER_POINTER (DECL_NAME (x)));
          }
-       else if (DECL_REGISTER (x) && !TREE_ADDRESSABLE (x))
+       else if (C_DECL_REGISTER (x))
          {
            if (TREE_PUBLIC (x) || TREE_STATIC (x) || DECL_EXTERNAL (x))
              {
@@ -2625,17 +2625,6 @@ c_mark_addressable (tree exp)
                return false;
              }
 
-           /* If we are making this addressable due to its having
-              volatile components, give a different error message.  Also
-              handle the case of an unnamed parameter by not trying
-              to give the name.  */
-
-           else if (C_TYPE_FIELDS_VOLATILE (TREE_TYPE (x)))
-             {
-               error ("cannot put object with volatile field into register");
-               return false;
-             }
-
            pedwarn ("address of register variable `%s' requested",
                     IDENTIFIER_POINTER (DECL_NAME (x)));
          }