builtins.c (expand_builtin_setjmp_receiver): Update call of get_arg_pointer_save_area.

	* builtins.c (expand_builtin_setjmp_receiver): Update call of
	get_arg_pointer_save_area.
	* expr.c (init_expr): Just clear out rtl.expr.
	* function.c (free_after_compilation): Clear out whole RTL structure.
	(get_func_frame_size): Merge into ...
	(get_frame_size): ... this one.
	(assign_stack_local_1): Merge into ...
	(assign_stack_local): ... this one.
	(expand_function_end): Update call of get_arg_pointer_save_area.
	(get_art_pointer_save_area): Remove cfun argument.
	* function.h (emit_status): regno_pointer_align does not need length
	attribute. Move x_regno_reg_rtx to ...
	(regno_reg_rtx): ... new global array.
	(reg_rtx_no, seq_stack, REGNO_POINTER_ALIGN): Update accestors.
	(pending_stack_adjust, inhibit_defer_pop, saveregs_value,
	apply_args_value, forced_labels, stack_pointer_delta): Update accestors.
	(struct varasm_status): Move here from varasm.c
	(struct rtl_data): New. Move here some fields from struct function.
	(return_label, naked_return_label, stack_slot_list, parm_birth_insn,
	frame_offset, stack_check_probe_note, arg_pointer_save_area,
	used_temp_slots avail_temp_slots, temp_slot_level,
	nonlocal_goto_handler_labels): Update accesstors.
	(rtl): New global variable.
	(struct function): Move some fileds to rtl_data.
	(get_arg_pointer_save_area): Update prototype.
	* emit-rtl.c (rtl): Declare.
	(regno_reg_rtx): Declare.
	(first_insn, last_insn, cur_insn_uid, last_location, first_label_num): Update.
	(gen_reg_rtx): Update.
	(init_virtual_regs): Do not tate emit_status argument.
	(init_emit): Do not allocate emit.
	* varasm.c (varasm_statuc): Move to function.h.
	(n_deferred_constatns): Update accestor.
	(init_varasm_status): Do not allocate varasm_status.
	(force_const_mem, get_pool_size, output_constant_pool): Update.
	* stmt.c (force_label_rtx): Do not use x_ prefixes.
	(expand_nl_goto_receiver): Update get_arg_pointer_save_area.

From-SVN: r133759

1 files changed, 30 insertions, 69 deletions

diff --git a/gcc/function.c b/gcc/function.c
index 4e2da89..325a205 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -193,8 +193,6 @@ struct temp_slot GTY(())
 
 /* Forward declarations.  */
 
-static rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int,
-				 struct function *);
 static struct temp_slot *find_temp_slot_from_address (rtx);
 static void pad_to_arg_alignment (struct args_size *, int, struct args_size *);
 static void pad_below (struct args_size *, enum machine_mode, tree);
@@ -315,45 +313,18 @@ free_after_compilation (struct function *f)
   VEC_free (int, heap, prologue);
   VEC_free (int, heap, epilogue);
   VEC_free (int, heap, sibcall_epilogue);
+  free (rtl.emit.regno_pointer_align);
 
+  memset (&rtl, 0, sizeof (rtl));
   f->eh = NULL;
-  f->expr = NULL;
-  f->emit = NULL;
-  f->varasm = NULL;
   f->machine = NULL;
   f->cfg = NULL;
 
-  f->x_avail_temp_slots = NULL;
-  f->x_used_temp_slots = NULL;
   f->arg_offset_rtx = NULL;
   f->return_rtx = NULL;
   f->internal_arg_pointer = NULL;
-  f->x_nonlocal_goto_handler_labels = NULL;
-  f->x_return_label = NULL;
-  f->x_naked_return_label = NULL;
-  f->x_stack_slot_list = NULL;
-  f->x_stack_check_probe_note = NULL;
-  f->x_arg_pointer_save_area = NULL;
-  f->x_parm_birth_insn = NULL;
-  f->epilogue_delay_list = NULL;
 }
 
-/* Allocate fixed slots in the stack frame of the current function.  */
-
-/* Return size needed for stack frame based on slots so far allocated in
-   function F.
-   This size counts from zero.  It is not rounded to PREFERRED_STACK_BOUNDARY;
-   the caller may have to do that.  */
-
-static HOST_WIDE_INT
-get_func_frame_size (struct function *f)
-{
-  if (FRAME_GROWS_DOWNWARD)
-    return -f->x_frame_offset;
-  else
-    return f->x_frame_offset;
-}
-
 /* Return size needed for stack frame based on slots so far allocated.
    This size counts from zero.  It is not rounded to PREFERRED_STACK_BOUNDARY;
    the caller may have to do that.  */
@@ -361,7 +332,10 @@ get_func_frame_size (struct function *f)
 HOST_WIDE_INT
 get_frame_size (void)
 {
-  return get_func_frame_size (cfun);
+  if (FRAME_GROWS_DOWNWARD)
+    return -frame_offset;
+  else
+    return frame_offset;
 }
 
 /* Issue an error message and return TRUE if frame OFFSET overflows in
@@ -393,13 +367,10 @@ frame_offset_overflow (HOST_WIDE_INT offset, tree func)
    -2 means use BITS_PER_UNIT,
    positive specifies alignment boundary in bits.
 
-   We do not round to stack_boundary here.
+   We do not round to stack_boundary here.  */
 
-   FUNCTION specifies the function to allocate in.  */
-
-static rtx
-assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
-		      struct function *function)
+rtx
+assign_stack_local (enum machine_mode mode, HOST_WIDE_INT size, int align)
 {
   rtx x, addr;
   int bigend_correction = 0;
@@ -434,14 +405,14 @@ assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
     alignment = align / BITS_PER_UNIT;
 
   if (FRAME_GROWS_DOWNWARD)
-    function->x_frame_offset -= size;
+    frame_offset -= size;
 
   /* Ignore alignment we can't do with expected alignment of the boundary.  */
   if (alignment * BITS_PER_UNIT > PREFERRED_STACK_BOUNDARY)
     alignment = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT;
 
-  if (function->stack_alignment_needed < alignment * BITS_PER_UNIT)
-    function->stack_alignment_needed = alignment * BITS_PER_UNIT;
+  if (cfun->stack_alignment_needed < alignment * BITS_PER_UNIT)
+    cfun->stack_alignment_needed = alignment * BITS_PER_UNIT;
 
   /* Calculate how many bytes the start of local variables is off from
      stack alignment.  */
@@ -461,13 +432,13 @@ assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
 	  like.  So we instead assume that ALIGNMENT is a power of two and
 	  use logical operations which are unambiguous.  */
       if (FRAME_GROWS_DOWNWARD)
-	function->x_frame_offset
-	  = (FLOOR_ROUND (function->x_frame_offset - frame_phase,
+	frame_offset
+	  = (FLOOR_ROUND (frame_offset - frame_phase,
 			  (unsigned HOST_WIDE_INT) alignment)
 	     + frame_phase);
       else
-	function->x_frame_offset
-	  = (CEIL_ROUND (function->x_frame_offset - frame_phase,
+	frame_offset
+	  = (CEIL_ROUND (frame_offset - frame_phase,
 			 (unsigned HOST_WIDE_INT) alignment)
 	     + frame_phase);
     }
@@ -479,7 +450,7 @@ assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
 
   /* If we have already instantiated virtual registers, return the actual
      address relative to the frame pointer.  */
-  if (function == cfun && virtuals_instantiated)
+  if (virtuals_instantiated)
     addr = plus_constant (frame_pointer_rtx,
 			  trunc_int_for_mode
 			  (frame_offset + bigend_correction
@@ -487,33 +458,23 @@ assign_stack_local_1 (enum machine_mode mode, HOST_WIDE_INT size, int align,
   else
     addr = plus_constant (virtual_stack_vars_rtx,
 			  trunc_int_for_mode
-			  (function->x_frame_offset + bigend_correction,
+			  (frame_offset + bigend_correction,
 			   Pmode));
 
   if (!FRAME_GROWS_DOWNWARD)
-    function->x_frame_offset += size;
+    frame_offset += size;
 
   x = gen_rtx_MEM (mode, addr);
   MEM_NOTRAP_P (x) = 1;
 
-  function->x_stack_slot_list
-    = gen_rtx_EXPR_LIST (VOIDmode, x, function->x_stack_slot_list);
+  stack_slot_list
+    = gen_rtx_EXPR_LIST (VOIDmode, x, stack_slot_list);
 
-  if (frame_offset_overflow (function->x_frame_offset, function->decl))
-    function->x_frame_offset = 0;
+  if (frame_offset_overflow (frame_offset, current_function_decl))
+    frame_offset = 0;
 
   return x;
 }
-
-/* Wrapper around assign_stack_local_1;  assign a local stack slot for the
-   current function.  */
-
-rtx
-assign_stack_local (enum machine_mode mode, HOST_WIDE_INT size, int align)
-{
-  return assign_stack_local_1 (mode, size, align, cfun);
-}
-
 
 /* Removes temporary slot TEMP from LIST.  */
 
@@ -3975,7 +3936,7 @@ static void
 prepare_function_start (void)
 {
   init_emit ();
-  init_varasm_status (cfun);
+  init_varasm_status ();
   init_expr ();
 
   cse_not_expected = ! optimize;
@@ -4440,7 +4401,7 @@ expand_function_end (void)
   /* If arg_pointer_save_area was referenced only from a nested
      function, we will not have initialized it yet.  Do that now.  */
   if (arg_pointer_save_area && ! cfun->arg_pointer_save_area_init)
-    get_arg_pointer_save_area (cfun);
+    get_arg_pointer_save_area ();
 
   /* If we are doing stack checking and this function makes calls,
      do a stack probe at the start of the function to ensure we have enough
@@ -4673,17 +4634,17 @@ expand_function_end (void)
 }
 
 rtx
-get_arg_pointer_save_area (struct function *f)
+get_arg_pointer_save_area (void)
 {
-  rtx ret = f->x_arg_pointer_save_area;
+  rtx ret = arg_pointer_save_area;
 
   if (! ret)
     {
-      ret = assign_stack_local_1 (Pmode, GET_MODE_SIZE (Pmode), 0, f);
-      f->x_arg_pointer_save_area = ret;
+      ret = assign_stack_local (Pmode, GET_MODE_SIZE (Pmode), 0);
+      arg_pointer_save_area = ret;
     }
 
-  if (f == cfun && ! f->arg_pointer_save_area_init)
+  if (! cfun->arg_pointer_save_area_init)
     {
       rtx seq;