2005-09-23 David Edelsohn <edelsohn@gnu.org>

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

diff --git a/gcc/target.h b/gcc/target.h
index d6b9f5e..564c333 100644 (file)
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -13,7 +13,7 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
  In other words, you are welcome to use, share and improve this program.
  You are forbidden to forbid anyone else to use, share and improve
@@ -93,6 +93,9 @@ struct gcc_target
     /* Output an internal label.  */
     void (* internal_label) (FILE *, const char *, unsigned long);
 
+    /* Emit a ttype table reference to a typeinfo object.  */
+    bool (* ttype) (rtx);
+
     /* Emit an assembler directive to set visibility for the symbol
        associated with the tree decl.  */
     void (* visibility) (tree, int);
@@ -390,6 +393,9 @@ struct gcc_target
   /* True if the insn X cannot be duplicated.  */
   bool (* cannot_copy_insn_p) (rtx);
 
+  /* True if X is considered to be commutative.  */
+  bool (* commutative_p) (rtx, int);
+
   /* Given an address RTX, undo the effects of LEGITIMIZE_ADDRESS.  */
   rtx (* delegitimize_address) (rtx);
 
@@ -443,6 +449,10 @@ struct gcc_target
      invalid addresses.  */
   int (* address_cost) (rtx x);
 
+  /* Return where to allocate pseudo for a given hard register initial
+     value.  */
+  rtx (* allocate_initial_value) (rtx x);
+
   /* Given a register, this hook should return a parallel of registers
      to represent where to find the register pieces.  Define this hook
      if the register and its mode are represented in Dwarf in
@@ -526,7 +536,16 @@ struct gcc_target
      from VA_ARG_EXPR.  LHS is left hand side of MODIFY_EXPR, RHS
      is right hand side.  Returns true if the statements doesn't need
      to be checked for va_list references.  */
-  bool (*stdarg_optimize_hook) (struct stdarg_info *ai, tree lhs, tree rhs);
+  bool (* stdarg_optimize_hook) (struct stdarg_info *ai, tree lhs, tree rhs);
+
+  /* This target hook allows the operating system to override the DECL
+     that represents the external variable that contains the stack
+     protection guard variable.  The type of this DECL is ptr_type_node.  */
+  tree (* stack_protect_guard) (void);
+
+  /* This target hook allows the operating system to override the CALL_EXPR
+     that is invoked when a check vs the guard variable fails.  */
+  tree (* stack_protect_fail) (void);
 
   /* Returns NULL if target supports the insn within a doloop block,
      otherwise it returns an error message.  */
@@ -584,8 +603,25 @@ struct gcc_target
        is not allowed for this 'val' argument; NULL otherwise. */
     const char *(*invalid_arg_for_unprototyped_fn) (tree typelist, 
                                                    tree funcdecl, tree val);
+
+    /* Return an rtx for the return value location of the function
+       specified by FN_DECL_OR_TYPE with a return type of RET_TYPE.  */
+    rtx (*function_value) (tree ret_type, tree fn_decl_or_type,
+                          bool outgoing);
   } calls;
 
+  /* Return the diagnostic message string if conversion from FROMTYPE
+     to TOTYPE is not allowed, NULL otherwise.  */
+  const char *(*invalid_conversion) (tree fromtype, tree totype);
+
+  /* Return the diagnostic message string if the unary operation OP is
+     not permitted on TYPE, NULL otherwise.  */
+  const char *(*invalid_unary_op) (int op, tree type);
+
+  /* Return the diagnostic message string if the binary operation OP
+     is not permitted on TYPE1 and TYPE2, NULL otherwise.  */
+  const char *(*invalid_binary_op) (int op, tree type1, tree type2);
+
   /* Functions specific to the C++ frontend.  */
   struct cxx {
     /* Return the integer type used for guard variables.  */
@@ -626,6 +662,9 @@ struct gcc_target
     bool (*use_aeabi_atexit) (void);
   } cxx;
 
+  /* True if unwinding tables should be generated by default.  */
+  bool unwind_tables_default;
+
   /* Leave the boolean fields at the end.  */
 
   /* True if arbitrary sections are supported.  */
@@ -662,6 +701,11 @@ struct gcc_target
      synchronization is explicitly requested.  */
   bool relaxed_ordering;
 
+  /* Returns true if we should generate exception tables for use with the
+     ARM EABI.  The effects the encoding of function exception specifications.
+   */
+  bool arm_eabi_unwinder;
+
   /* Leave the boolean fields at the end.  */
 };