* doc/fragments.texi, doc/trouble.texi: Remove links to old

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

diff --git a/gcc/c-convert.c b/gcc/c-convert.c
index 8dc8550..947c79b 100644 (file)
--- a/gcc/c-convert.c
+++ b/gcc/c-convert.c
@@ -1,22 +1,22 @@
 /* Language-level data type conversion for GNU C.
    Copyright (C) 1987, 1988, 1991, 1998 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
 
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
 
 
 /* This file contains the functions for converting C expressions
@@ -61,8 +61,8 @@ tree
 convert (type, expr)
      tree type, expr;
 {
-  register tree e = expr;
-  register enum tree_code code = TREE_CODE (type);
+  tree e = expr;
+  enum tree_code code = TREE_CODE (type);
 
   if (type == TREE_TYPE (expr)
       || TREE_CODE (expr) == ERROR_MARK
@@ -88,12 +88,24 @@ convert (type, expr)
 #endif
   if (code == INTEGER_TYPE || code == ENUMERAL_TYPE)
     return fold (convert_to_integer (type, e));
+  if (code == BOOLEAN_TYPE)
+    {
+      tree t = truthvalue_conversion (expr);
+      /* If truthvalue_conversion returns a NOP_EXPR, we must fold it here
+        to avoid infinite recursion between fold () and convert ().  */
+      if (TREE_CODE (t) == NOP_EXPR)
+       return fold (build1 (NOP_EXPR, type, TREE_OPERAND (t, 0)));
+      else
+       return fold (build1 (NOP_EXPR, type, t));
+    }
   if (code == POINTER_TYPE || code == REFERENCE_TYPE)
     return fold (convert_to_pointer (type, e));
   if (code == REAL_TYPE)
     return fold (convert_to_real (type, e));
   if (code == COMPLEX_TYPE)
     return fold (convert_to_complex (type, e));
+  if (code == VECTOR_TYPE)
+    return fold (convert_to_vector (type, e));
 
   error ("conversion to non-scalar type requested");
   return error_mark_node;