X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fst%2Fexc.c;h=6fc1efd59556829f0c3d33b67fee1dcd56df97dd;hb=d0d85962ef52c14950db90e5981a7bea36023ab3;hp=9ce96dd8e325e350333c28d8c58841427f5f3f8b;hpb=3d507c5ed90a05f52cb9396c765369e35f08c029;p=libfirm

diff --git a/ir/st/exc.c b/ir/st/exc.c
index 9ce96dd8e..6fc1efd59 100644
--- a/ir/st/exc.c
+++ b/ir/st/exc.c
@@ -1,22 +1,26 @@
-/* Copyright (c) 2002 by Universität Karlsruhe (TH).  All Rights Reserved */
-//
-// Time-stamp: <Monday, 13.05.2002, 15:53:33 goetz@i44pc2.info.uni-karlsruhe.de>
-//
-
-/***
+/*
+ * Project:     libFIRM
+ * File name:   ir/st/exc.c
+ * Purpose:     Helper functions for jack exceptions.
+ * Author:      Florian Liekweg
+ * Modified by:
+ * Created:     4.3.2002
+ * CVS-ID:      $Id$
+ * Copyright:   (c) 2002-2003 Universität Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ */
+
+/**
    NAME
      exc
    PURPOSE
      Helper functions for exceptions
-   NOTES
+   S
      not quite complete
-   HISTORY
-     liekweg - Mar 4, 2002: Created.
-   CVS:
-     $Id$
 ***/
 
-# include "exc.h"
+#include <assert.h>
+#include "exc.h"
 
 static char* exc_strings [] = {
   "Invalid",					/* invalid */
@@ -40,7 +44,7 @@ static bool has_handler (ir_graph *graph, ir_node *b, ir_node *a)
   ir_node *succ = 0;
 
   assert (0 && "Wrongly implemented");
-  // must check for _immediate_ dominance !!!
+  /* must check for _immediate_ dominance !!! */
 
   if (is_handler_entry (graph, b) && dominates (graph, a, b))
 	return (true);
@@ -63,15 +67,15 @@ static bool is_exc_jmp (ir_node *node)
 {
   ir_op *op = get_irn_op (node);
 
-  // Proj_X (Load), Proj_X (Sto), Proj_X (Div_Int),
-  // Proj_X (Raise), Proj_X (Call), Proj_X (Alloc)
+  /* Proj_X (Load), Proj_X (Sto), Proj_X (Div_Int),
+     Proj_X (Raise), Proj_X (Call), Proj_X (Alloc) */
   if (op == op_Proj)
 	{
 	  op = get_irn_op (get_Proj_pred (node));
 
 	  assert ((is_fragile_op(get_Proj_pred(node))) &&
-		  (op != op_Bad) && (op != op_Unknown) &&
-		  (get_irn_mode(node) == mode_X));// Check for proper Proj attr
+		  (op != op_Bad) /*&& (op != op_Unknown)*/ &&
+		  (get_irn_mode(node) == mode_X));/* Check for proper Proj attr */
 	  return (true);
 	}
   else
@@ -83,21 +87,56 @@ static bool is_exc_jmp (ir_node *node)
 /*
 Return true iff the given node represents a normal cfg jump
 */
+#if 0
 static bool is_cfg_jmp (ir_node *node)
 {
   ir_op *op = get_irn_op (node);
 
   if (op == op_Proj)
-	{
-	  op = get_irn_op (get_Proj_pred (node));
+    {
+      op = get_irn_op (get_Proj_pred (node));
 
-	  // Proj_X (Proj_Cmp (Cond))
-	  if (op_Proj == op)
-		return (true);			/* check for op == op_Cmp and op == op_Cond */
-	}
+      /* Proj_X (Proj_Cmp (Cond)) */
+      if (op_Proj == op)
+	return (true);	/* check for op == op_Cmp and op == op_Cond */
+    }
 
   return (false);
 }
+#endif
+
+void set_Block_exc(ir_node *n, exc_t exc) {
+}
+
+exc_t get_Block_exc(ir_node *n) {
+  return 0;
+}
+
+
+/* handler handling for Blocks */
+void
+set_Block_handler (ir_node *block, ir_node *handler)  {
+  assert (is_Block(block));
+  assert (is_Block(handler));
+}
+
+ir_node *
+get_Block_handler (ir_node *block) {
+  assert (is_Block(block));
+  return (NULL);
+}
+
+/* handler handling for Nodes */
+void
+set_Node_handler (ir_node *node, ir_node *handler) {
+
+}
+
+ir_node *
+get_Node_handler (ir_node *node) {
+  return (NULL);
+}
+
 
 /*
  Return true iff a new exception region must be left upon entry of this block.
@@ -110,12 +149,10 @@ bool is_handler_entry (ir_graph *graph, ir_node *block)
   bool is_entry = true;
   int  i        = 0;
   int  n        = get_irn_arity (block);
-  ir_node *node = 0;
-  ir_op* op     = op_Bad;
 
   if (exc_invalid == get_Block_exc (block))
 	{
-	  for (i = 0; (i < n) && is_entry; i ++)
+	  for (i = 0; (i < n) && (is_entry == true); i ++)
 		if (is_exc_jmp (get_irn_n (block, i)))
 		  continue;
 		else
@@ -145,7 +182,7 @@ bool is_region_entry  (ir_graph *graph, ir_node *block)
 
 	  bool no_handler = true;
 
-	  for (i = 0; (i < n) && no_handler; i ++)
+	  for (i = 0; (i < n) && (no_handler == true); i ++)
 		{
 		  succ = get_irn_out (block, i);
 
@@ -159,7 +196,7 @@ bool is_region_entry  (ir_graph *graph, ir_node *block)
 
   return (exc_region == get_Block_exc (block));
 
-  return (TRUE);
+  return (true);
 }
 
 /*
@@ -181,7 +218,7 @@ bool is_handler_block (ir_graph *graph, ir_node *block)
 	  int n_blocks    = env->dt->n_blocks;
 	  int i           = 0;
 
-	  for (i = 0; (i < n_blocks) && no_handler; i ++)
+	  for (i = 0; (i < n_blocks) && (no_handler == true); i ++)
 		if (0 != (env->dt->masks [i] & block_mask)) /* if dominator */
 		  if (is_handler_entry (graph, env->dt->blocks [i])) /* is handler entry */
 			no_handler = false;