* config.gcc (extra_options): New variable for listing option files.

[pf3gnuchains/gcc-fork.git] / gcc / target.h

diff --git a/gcc/target.h b/gcc/target.h
index aa3542c..3513550 100644 (file)
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -1,5 +1,5 @@
 /* Data structure definitions for a generic GCC target.
-   Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
@@ -286,18 +286,21 @@ struct gcc_target
   struct vectorize
   {
     /* The following member value is a pointer to a function called
-       by te vectorizer, and when expanding a MISALIGNED_INDIRECT_REF
-       expression.  If the hook returns true (false) then a move* pattern
-       to/from memory can (cannot) be generated for this mode even if the
-       memory location is unaligned.  */
-    bool (* misaligned_mem_ok) (enum machine_mode);
-
-    /* The following member value is a pointer to a function called
        by the vectorizer, and return the decl of the target builtin
        function.  */
     tree (* builtin_mask_for_load) (void);
   } vectorize;
 
+  /* The initial value of target_flags.  */
+  int default_target_flags;
+
+  /* Handle target switch CODE (an OPT_* value).  ARG is the argument
+     passed to the switch; it is NULL if no argument was.  VALUE is the
+     value of ARG if CODE specifies a UInteger option, otherwise it is
+     1 if the positive form of the switch was used and 0 if the negative
+     form was.  Return true if the switch was valid.  */
+  bool (* handle_option) (size_t code, const char *arg, int value);
+
   /* Return machine mode for filter value.  */
   enum machine_mode (* eh_return_filter_mode) (void);
 
@@ -544,6 +547,17 @@ struct gcc_target
        the caller.  It is never called for TYPE requiring constructors.  */
     bool (* callee_copies) (CUMULATIVE_ARGS *ca, enum machine_mode mode,
                            tree type, bool named);
+
+    /* Return zero for arguments passed entirely on the stack or entirely
+       in registers.  If passed in both, return the number of bytes passed
+       in registers; the balance is therefore passed on the stack.  */
+    int (* arg_partial_bytes) (CUMULATIVE_ARGS *ca, enum machine_mode mode,
+                              tree type, bool named);
+
+    /* Return the diagnostic message string if function without a prototype
+       is not allowed for this 'val' argument; NULL otherwise. */
+    const char *(*invalid_arg_for_unprototyped_fn) (tree typelist, 
+                                                   tree funcdecl, tree val);
   } calls;
 
   /* Functions specific to the C++ frontend.  */
@@ -605,6 +619,10 @@ struct gcc_target
   /* True if #pragma extern_prefix is to be supported.  */
   bool handle_pragma_extern_prefix;
 
+  /* True if the target is allowed to reorder memory accesses unless
+     synchronization is explicitly requested.  */
+  bool relaxed_ordering;
+
   /* Leave the boolean fields at the end.  */
 };