91th Cygnus<->FSF merge

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

diff --git a/gcc/function.h b/gcc/function.h
index 36640b8..63c26ac 100644 (file)
--- a/gcc/function.h
+++ b/gcc/function.h
@@ -1,5 +1,5 @@
 /* Structure for saving state for a nested function.
-   Copyright (C) 1989, 1992, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1989, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -15,7 +15,8 @@ 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 
 #ifndef NULL_TREE
@@ -26,12 +27,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #endif
 
 struct var_refs_queue
-  {
-    rtx modified;
-    enum machine_mode promoted_mode;
-    int unsignedp;
-    struct var_refs_queue *next;
-  };
+{
+  rtx modified;
+  enum machine_mode promoted_mode;
+  int unsignedp;
+  struct var_refs_queue *next;
+};
 
 /* Stack of pending (incomplete) sequences saved by `start_sequence'.
    Each element describes one pending sequence.
@@ -47,6 +48,14 @@ struct sequence_stack
 };
 
 extern struct sequence_stack *sequence_stack;
+
+/* Stack of single obstacks.  */
+
+struct simple_obstack_stack
+{
+  struct obstack *obstack;
+  struct simple_obstack_stack *next;
+};
 \f
 /* This structure can save all the important global and static variables
    describing the status of the current function.  */
@@ -61,18 +70,22 @@ struct function
   int pops_args;
   int returns_struct;
   int returns_pcc_struct;
+  int returns_pointer;
   int needs_context;
   int calls_setjmp;
   int calls_longjmp;
   int calls_alloca;
   int has_nonlocal_label;
   int has_nonlocal_goto;
+  int contains_functions;
   rtx nonlocal_goto_handler_slot;
   rtx nonlocal_goto_stack_level;
   tree nonlocal_labels;
   int args_size;
   int pretend_args_size;
   rtx arg_offset_rtx;
+  int varargs;
+  int stdarg;
   int max_parm_reg;
   rtx *parm_reg_stack_loc;
   int outgoing_args_size;
@@ -82,7 +95,7 @@ struct function
   rtx save_expr_regs;
   rtx stack_slot_list;
   rtx parm_birth_insn;
-  int frame_offset;
+  HOST_WIDE_INT frame_offset;
   rtx tail_recursion_label;
   rtx tail_recursion_reentry;
   rtx internal_arg_pointer;
@@ -97,6 +110,7 @@ struct function
   /* This slot is initialized as 0 and is added to
      during the nested function.  */
   struct var_refs_queue *fixup_var_refs_queue;
+  CUMULATIVE_ARGS args_info;
 
   /* For stmt.c  */
   struct nesting *block_stack;
@@ -114,10 +128,19 @@ struct function
   int emit_lineno;
   struct goto_fixup *goto_fixup_chain;
 
+  /* For exception handling information.  */
+  struct eh_stack ehstack;
+  struct eh_queue ehqueue;
+  rtx catch_clauses;
+  struct label_node *false_label_stack;
+  struct label_node *caught_return_label_stack;
+  tree protect_list;
+  rtx dhc;
+  rtx dcc;
+
   /* For expr.c.  */
   int pending_stack_adjust;
   int inhibit_defer_pop;
-  tree cleanups_this_call;
   rtx saveregs_value;
   rtx apply_args_value;
   rtx forced_labels;
@@ -133,6 +156,7 @@ struct function
   int last_linenum;
   char *last_filename;
   char *regno_pointer_flag;
+  char *regno_pointer_align;
   int regno_pointer_flag_length;
   rtx *regno_reg_rtx;
 
@@ -157,6 +181,7 @@ struct function
   struct obstack *expression_obstack;
   struct obstack *saveable_obstack;
   struct obstack *rtl_obstack;
+  struct simple_obstack_stack *inline_obstacks;
 
   /* For integrate.c.  */
   int uses_const_pool;
@@ -200,12 +225,21 @@ extern struct function *outer_function_chain;
    the index of that block in the vector.  */
 extern tree *identify_blocks PROTO((tree, rtx));
 
+/* Return size needed for stack frame based on slots so far allocated.
+   This size counts from zero.  It is not rounded to STACK_BOUNDARY;
+   the caller may have to do that.  */
+extern HOST_WIDE_INT get_frame_size PROTO((void));
+
 /* These variables hold pointers to functions to
    save and restore machine-specific data,
    in push_function_context and pop_function_context.  */
 extern void (*save_machine_status) ();
 extern void (*restore_machine_status) ();
 
+/* Save and restore varasm.c status for a nested function.  */
+extern void save_varasm_status         PROTO((struct function *));
+extern void restore_varasm_status      PROTO((struct function *));
+
 #ifdef rtx
 #undef rtx
 #endif