X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firnode.c;h=47a5ce5a12671f8161702f0fba8498a4351d92d3;hb=637542932dc27dcdfc7def09b58d9d5d4c34fb77;hp=114245fe14e33b1d7a50d3f8cf61888caf2958e4;hpb=cf79d3e7dfc60cb5ec8f2cdab9b620b40ff14566;p=libfirm

diff --git a/ir/ir/irnode.c b/ir/ir/irnode.c
index 114245fe1..47a5ce5a1 100644
--- a/ir/ir/irnode.c
+++ b/ir/ir/irnode.c
@@ -53,32 +53,44 @@ const char *get_pnc_string(int pnc) {
   return pnc_name_arr[pnc];
 }
 
-/**
+/*
  * Calculates the negated pnc condition.
  */
 int
 get_negated_pnc(int pnc) {
   switch (pnc) {
-  case pn_Cmp_False: return pn_Cmp_True;  break;
-  case pn_Cmp_Eq:    return pn_Cmp_Ne;    break;
-  case pn_Cmp_Lt:    return pn_Cmp_Uge;   break;
-  case pn_Cmp_Le:    return pn_Cmp_Ug;    break;
-  case pn_Cmp_Gt:    return pn_Cmp_Ule;   break;
-  case pn_Cmp_Ge:    return pn_Cmp_Ul;    break;
-  case pn_Cmp_Lg:    return pn_Cmp_Ue;    break;
-  case pn_Cmp_Leg:   return pn_Cmp_Uo;    break;
-  case pn_Cmp_Uo:    return pn_Cmp_Leg;   break;
-  case pn_Cmp_Ue:    return pn_Cmp_Lg;    break;
-  case pn_Cmp_Ul:    return pn_Cmp_Ge;    break;
-  case pn_Cmp_Ule:   return pn_Cmp_Gt;    break;
-  case pn_Cmp_Ug:    return pn_Cmp_Le;    break;
-  case pn_Cmp_Uge:   return pn_Cmp_Lt;    break;
-  case pn_Cmp_Ne:    return pn_Cmp_Eq;    break;
-  case pn_Cmp_True:  return pn_Cmp_False; break;
+  case pn_Cmp_False: return pn_Cmp_True;
+  case pn_Cmp_Eq:    return pn_Cmp_Ne;
+  case pn_Cmp_Lt:    return pn_Cmp_Uge;
+  case pn_Cmp_Le:    return pn_Cmp_Ug;
+  case pn_Cmp_Gt:    return pn_Cmp_Ule;
+  case pn_Cmp_Ge:    return pn_Cmp_Ul;
+  case pn_Cmp_Lg:    return pn_Cmp_Ue;
+  case pn_Cmp_Leg:   return pn_Cmp_Uo;
+  case pn_Cmp_Uo:    return pn_Cmp_Leg;
+  case pn_Cmp_Ue:    return pn_Cmp_Lg;
+  case pn_Cmp_Ul:    return pn_Cmp_Ge;
+  case pn_Cmp_Ule:   return pn_Cmp_Gt;
+  case pn_Cmp_Ug:    return pn_Cmp_Le;
+  case pn_Cmp_Uge:   return pn_Cmp_Lt;
+  case pn_Cmp_Ne:    return pn_Cmp_Eq;
+  case pn_Cmp_True:  return pn_Cmp_False;
   }
   return 99; /* to shut up gcc */
 }
 
+/* Calculates the swapped pnc condition, i.e., "<" --> ">" */
+int
+get_swapped_pnc(int pnc) {
+  int code    = pnc & ~(pn_Cmp_Lt|pn_Cmp_Gt);
+  int lesser  = pnc & pn_Cmp_Lt;
+  int greater = pnc & pn_Cmp_Gt;
+
+  code |= (lesser ? pn_Cmp_Gt : 0) | (greater ? pn_Cmp_Lt : 0);
+
+  return code;
+}
+
 const char *pns_name_arr [] = {
   "initial_exec", "global_store",
   "frame_base", "globals", "args"
@@ -602,7 +614,6 @@ get_Block_cfgpred_arr (ir_node *node)
   return (ir_node **)&(get_irn_in(node)[1]);
 }
 
-
 int
 get_Block_n_cfgpreds (ir_node *node) {
   assert ((node->op == op_Block));
@@ -633,29 +644,26 @@ set_Block_matured (ir_node *node, bool matured) {
   assert (node->op == op_Block);
   node->attr.block.matured = matured;
 }
+
 unsigned long
-get_Block_block_visited (ir_node *node) {
-  assert (node->op == op_Block);
-  return node->attr.block.block_visited;
+(get_Block_block_visited)(ir_node *node) {
+  return _get_Block_block_visited(node);
 }
 
 void
-set_Block_block_visited (ir_node *node, unsigned long visit) {
-  assert (node->op == op_Block);
-  node->attr.block.block_visited = visit;
+(set_Block_block_visited)(ir_node *node, unsigned long visit) {
+  _set_Block_block_visited(node, visit);
 }
 
 /* For this current_ir_graph must be set. */
 void
-mark_Block_block_visited (ir_node *node) {
-  assert (node->op == op_Block);
-  node->attr.block.block_visited = get_irg_block_visited(current_ir_graph);
+(mark_Block_block_visited)(ir_node *node) {
+  _mark_Block_block_visited(node);
 }
 
 int
-Block_not_block_visited(ir_node *node) {
-  assert (node->op == op_Block);
-  return (node->attr.block.block_visited < get_irg_block_visited(current_ir_graph));
+(Block_not_block_visited)(ir_node *node) {
+  return _Block_not_block_visited(node);
 }
 
 ir_node *
@@ -723,6 +731,16 @@ int (is_Block_dead)(const ir_node *block) {
   return _is_Block_dead(block);
 }
 
+ir_extblk *get_Block_extbb(const ir_node *block) {
+  assert(is_Block(block));
+  return block->attr.block.extblk;
+}
+
+void set_Block_extbb(ir_node *block, ir_extblk *extblk) {
+  assert(is_Block(block));
+  block->attr.block.extblk = extblk;
+}
+
 void
 set_Start_irg(ir_node *node, ir_graph *irg) {
   assert(node->op == op_Start);
@@ -1357,6 +1375,52 @@ set_Cast_type (ir_node *node, type *to_tp) {
   node->attr.cast.totype = to_tp;
 }
 
+
+/* Checks for upcast.
+ *
+ * Returns true if the Cast node casts a class type to a super type.
+ */
+int is_Cast_upcast(ir_node *node) {
+  type *totype   = get_Cast_type(node);
+  type *fromtype = get_irn_typeinfo_type(get_Cast_op(node));
+  ir_graph *myirg = get_irn_irg(node);
+
+  assert(get_irg_typeinfo_state(myirg) == ir_typeinfo_consistent);
+  assert(fromtype);
+
+  while (is_Pointer_type(totype) && is_Pointer_type(fromtype)) {
+    totype   = get_pointer_points_to_type(totype);
+    fromtype = get_pointer_points_to_type(fromtype);
+  }
+
+  assert(fromtype);
+
+  if (!is_Class_type(totype)) return false;
+  return is_subclass_of(fromtype, totype);
+}
+
+/* Checks for downcast.
+ *
+ * Returns true if the Cast node casts a class type to a sub type.
+ */
+int is_Cast_downcast(ir_node *node) {
+  type *totype   = get_Cast_type(node);
+  type *fromtype = get_irn_typeinfo_type(get_Cast_op(node));
+
+  assert(get_irg_typeinfo_state(get_irn_irg(node)) == ir_typeinfo_consistent);
+  assert(fromtype);
+
+  while (is_Pointer_type(totype) && is_Pointer_type(fromtype)) {
+    totype   = get_pointer_points_to_type(totype);
+    fromtype = get_pointer_points_to_type(fromtype);
+  }
+
+  assert(fromtype);
+
+  if (!is_Class_type(totype)) return false;
+  return is_subclass_of(totype, fromtype);
+}
+
 int
 (is_unop)(const ir_node *node) {
   return _is_unop(node);
@@ -1767,7 +1831,7 @@ type *get_Proj_type(ir_node *n)
 }
 
 ir_node *
-get_Proj_pred (ir_node *node) {
+get_Proj_pred (const ir_node *node) {
   assert (is_Proj(node));
   return get_irn_n(node, 0);
 }
@@ -1779,7 +1843,7 @@ set_Proj_pred (ir_node *node, ir_node *pred) {
 }
 
 long
-get_Proj_proj (ir_node *node) {
+get_Proj_proj (const ir_node *node) {
   assert (is_Proj(node));
   if (get_irn_opcode(node) == iro_Proj) {
     return node->attr.proj;
@@ -1981,19 +2045,31 @@ skip_Tuple (ir_node *node) {
     pred = skip_Id(get_Proj_pred(node));
     if (get_irn_op(pred) == op_Proj) /* nested Tuple ? */
       pred = skip_Id(skip_Tuple(pred));
-    if (get_irn_op(pred) == op_Tuple)
+    else if (get_irn_op(pred) == op_Tuple)
       return get_Tuple_pred(pred, get_Proj_proj(node));
   }
   return node;
 }
 
-/** returns operand of node if node is a Cast */
+/* returns operand of node if node is a Cast */
 ir_node *skip_Cast  (ir_node *node) {
-  if (node && get_irn_op(node) == op_Cast) {
-    return skip_Id(get_irn_n(node, 0));
-  } else {
-    return node;
-  }
+  if (node && get_irn_op(node) == op_Cast)
+    return get_Cast_op(node);
+  return node;
+}
+
+/* returns operand of node if node is a Confirm */
+ir_node *skip_Confirm  (ir_node *node) {
+  if (node && get_irn_op(node) == op_Confirm)
+    return get_Confirm_value(node);
+  return node;
+}
+
+/* skip all high-level ops */
+ir_node *skip_HighLevel(ir_node *node) {
+  if (node && is_op_highlevel(get_irn_op(node)))
+    return get_irn_n(node, 0);
+  return node;
 }
 
 #if 0
@@ -2068,6 +2144,11 @@ int
   return _is_Bad(node);
 }
 
+int
+(is_Const)(const ir_node *node) {
+	return _is_Const(node);
+}
+
 int
 (is_no_Block)(const ir_node *node) {
   return _is_no_Block(node);
@@ -2080,9 +2161,8 @@ int
 
 /* returns true if node is a Unknown node. */
 int
-is_Unknown (const ir_node *node) {
-  assert(node);
-  return (get_irn_op(node) == op_Unknown);
+(is_Unknown)(const ir_node *node) {
+  return _is_Unknown(node);
 }
 
 int