import java.util.*;
public class FlatMethod extends FlatNode {
- FlatNode method_entry;
- MethodDescriptor method;
- TaskDescriptor task;
- Vector parameterTemps;
- Vector tagTemps;
- Hashtable tagtointmap;
-
- FlatMethod(MethodDescriptor md, FlatNode entry) {
- method=md;
- task=null;
- method_entry=entry;
- parameterTemps=new Vector();
- tagTemps=new Vector();
- tagtointmap=new Hashtable();
- }
-
- FlatMethod(TaskDescriptor td, FlatNode entry) {
- task=td;
- method=null;
- method_entry=entry;
- parameterTemps=new Vector();
- tagTemps=new Vector();
- tagtointmap=new Hashtable();
- }
-
- public String toString() {
- return method.toString();
- }
-
- public MethodDescriptor getMethod() {
- return method;
- }
+ MethodDescriptor method;
+ TaskDescriptor task;
+ Vector parameterTemps;
+ Vector tagTemps;
+ Hashtable tagtointmap;
+ FlatExit flatExit;
+
+ public FlatMethod(MethodDescriptor md, FlatExit fe) {
+ method=md;
+ task=null;
+ parameterTemps=new Vector();
+ tagTemps=new Vector();
+ tagtointmap=new Hashtable();
+ flatExit=fe;
+ }
+
+ FlatMethod(TaskDescriptor td, FlatExit fe) {
+ task=td;
+ method=null;
+ parameterTemps=new Vector();
+ tagTemps=new Vector();
+ tagtointmap=new Hashtable();
+ flatExit=fe;
+ }
+
+ public String toString() {
+ String ret = "FlatMethod_";
+ if( method != null ) {
+ ret += method.toString();
+ } else {
+ ret += task.toString();
+ }
+ ret+="(";
+ boolean first=true;
+ for(int i=0; i<numParameters(); i++) {
+ if (first) {
+ first=false;
+ } else
+ ret+=", ";
+ ret+=getParameter(i);
+ }
+ ret+=")";
+ return ret;
+ }
+
+ public MethodDescriptor getMethod() {
+ return method;
+ }
+
+ public TaskDescriptor getTask() {
+ return task;
+ }
+
+ public int kind() {
+ return FKind.FlatMethod;
+ }
+
+ public void addParameterTemp(TempDescriptor t) {
+ parameterTemps.add(t);
+ }
+
+ public int numParameters() {
+ return parameterTemps.size();
+ }
+
+ public void addTagTemp(TempDescriptor t) {
+ tagtointmap.put(t, new Integer(tagTemps.size()));
+ tagTemps.add(t);
+ }
+
+ public int getTagInt(TempDescriptor t) {
+ return ((Integer)tagtointmap.get(t)).intValue();
+ }
+
+ public int numTags() {
+ return tagTemps.size();
+ }
+
+ public TempDescriptor getTag(int i) {
+ return (TempDescriptor) tagTemps.get(i);
+ }
+
+ public TempDescriptor getParameter(int i) {
+ return (TempDescriptor) parameterTemps.get(i);
+ }
+
+ public FlatExit getFlatExit() {
+ return flatExit;
+ }
+
+ public void check() {
+ Set<FlatNode> set=getNodeSet();
+ for(Iterator<FlatNode> setit=set.iterator(); setit.hasNext(); ) {
+ FlatNode fn=setit.next();
+ for(int i=0; i<fn.numPrev(); i++) {
+ FlatNode fnprev=fn.getPrev(i);
+ if (!set.contains(fnprev)) {
+ System.out.println(fn+" has unreachable parent:"+i+" "+fnprev);
+ System.out.println(printMethod());
+ throw new Error();
- public TaskDescriptor getTask() {
- return task;
- }
-
- public void addParameterTemp(TempDescriptor t) {
- parameterTemps.add(t);
- }
-
- public int numParameters() {
- return parameterTemps.size();
- }
-
- public void addTagTemp(TempDescriptor t) {
- tagtointmap.put(t, new Integer(tagTemps.size()));
- tagTemps.add(t);
- }
-
- public int getTagInt(TempDescriptor t) {
- return ((Integer)tagtointmap.get(t)).intValue();
- }
-
- public int numTags() {
- return tagTemps.size();
- }
-
- public TempDescriptor getTag(int i) {
- return (TempDescriptor) tagTemps.get(i);
- }
-
- public TempDescriptor getParameter(int i) {
- return (TempDescriptor) parameterTemps.get(i);
- }
-
- public FlatNode methodEntryNode() {
- return method_entry;
- }
-
-
- public Set getNodeSet() {
- HashSet tovisit=new HashSet();
- HashSet visited=new HashSet();
- tovisit.add(method_entry);
- while(!tovisit.isEmpty()) {
- FlatNode fn=(FlatNode)tovisit.iterator().next();
- tovisit.remove(fn);
- visited.add(fn);
- for(int i=0;i<fn.numNext();i++) {
- FlatNode nn=fn.getNext(i);
- if (!visited.contains(nn))
- tovisit.add(nn);
- }
}
- return visited;
- }
-
- /** This method returns a string that is a human readable
- * representation of this method. */
-
- public String printMethod() {
- String st=method+" {\n";
- HashSet tovisit=new HashSet();
- HashSet visited=new HashSet();
- int labelindex=0;
- Hashtable nodetolabel=new Hashtable();
- tovisit.add(method_entry);
- FlatNode current_node=null;
- //Assign labels 1st
- //Node needs a label if it is
- while(!tovisit.isEmpty()) {
- FlatNode fn=(FlatNode)tovisit.iterator().next();
- tovisit.remove(fn);
- visited.add(fn);
-
-// System.out.println("Next : "+fn.numNext());
-
- for(int i=0;i<fn.numNext();i++) {
- FlatNode nn=fn.getNext(i);
- if(i>0) {
- //1) Edge >1 of node
- nodetolabel.put(nn,new Integer(labelindex++));
- }
- if (!visited.contains(nn)&&!tovisit.contains(nn)) {
- tovisit.add(nn);
- } else {
- //2) Join point
- nodetolabel.put(nn,new Integer(labelindex++));
- }
- }
+ }
+ }
+ }
+
+ /** This method returns a set of the nodes in this flat representation */
+
+ public Set<FlatNode> getNodeSet() {
+ HashSet<FlatNode> tovisit=new HashSet<FlatNode>();
+ HashSet<FlatNode> visited=new HashSet<FlatNode>();
+ tovisit.add(this);
+ while(!tovisit.isEmpty()) {
+ FlatNode fn=tovisit.iterator().next();
+ tovisit.remove(fn);
+ visited.add(fn);
+ for(int i=0; i<fn.numNext(); i++) {
+ FlatNode nn=fn.getNext(i);
+ if (nn==null)
+ continue;
+ if (!visited.contains(nn))
+ tovisit.add(nn);
+ }
+ }
+ return visited;
+ }
+
+ public String printMethod() {
+ return printMethod(null);
+ }
+
+ /** This method returns a string that is a human readable
+ * representation of this method. */
+
+ public String printMethod(Map map) {
+ String st=method+" {\n";
+ HashSet tovisit=new HashSet();
+ HashSet visited=new HashSet();
+ int labelindex=0;
+ Hashtable nodetolabel=new Hashtable();
+ tovisit.add(this);
+ FlatNode current_node=null;
+ //Assign labels 1st
+ //Node needs a label if it is
+ while(!tovisit.isEmpty()) {
+ FlatNode fn=(FlatNode)tovisit.iterator().next();
+ tovisit.remove(fn);
+ visited.add(fn);
+
+ for(int i=0; i<fn.numNext(); i++) {
+ FlatNode nn=fn.getNext(i);
+ if(i>0) {
+ //1) Edge >1 of node
+ nodetolabel.put(nn,new Integer(labelindex++));
}
-
- //Do the actual printing
- tovisit=new HashSet();
- visited=new HashSet();
- tovisit.add(method_entry);
- while(current_node!=null||!tovisit.isEmpty()) {
- if (current_node==null) {
- current_node=(FlatNode)tovisit.iterator().next();
- tovisit.remove(current_node);
- }
- visited.add(current_node);
- if (nodetolabel.containsKey(current_node))
- st+="L"+nodetolabel.get(current_node)+":\n";
- if (current_node.numNext()==0) {
- st+=" "+current_node.toString()+"\n";
- current_node=null;
- } else if(current_node.numNext()==1) {
- st+=" "+current_node.toString()+"\n";
- FlatNode nextnode=current_node.getNext(0);
- if (visited.contains(nextnode)) {
- st+="goto L"+nodetolabel.get(nextnode)+"\n";
- current_node=null;
- } else
- current_node=nextnode;
- } else if (current_node.numNext()==2) {
- /* Branch */
- st+=" "+((FlatCondBranch)current_node).toString("L"+nodetolabel.get(current_node.getNext(1)))+"\n";
- if (!visited.contains(current_node.getNext(1)))
- tovisit.add(current_node.getNext(1));
- if (visited.contains(current_node.getNext(0))) {
- st+="goto L"+nodetolabel.get(current_node.getNext(0))+"\n";
- current_node=null;
- } else
- current_node=current_node.getNext(0);
- } else throw new Error();
+ if (!visited.contains(nn)&&!tovisit.contains(nn)) {
+ tovisit.add(nn);
+ } else {
+ //2) Join point
+ nodetolabel.put(nn,new Integer(labelindex++));
}
- return st+"}\n";
- }
-
- public TempDescriptor [] writesTemps() {
- return (TempDescriptor[]) parameterTemps.toArray(new TempDescriptor[ parameterTemps.size()]);
- }
+ }
+ }
+
+ //Do the actual printing
+ tovisit=new HashSet();
+ visited=new HashSet();
+ tovisit.add(this);
+ while(current_node!=null||!tovisit.isEmpty()) {
+ if (current_node==null) {
+ current_node=(FlatNode)tovisit.iterator().next();
+ tovisit.remove(current_node);
+ } else {
+ if (tovisit.contains(current_node))
+ tovisit.remove(current_node);
+ }
+ visited.add(current_node);
+ if (nodetolabel.containsKey(current_node)) {
+ st+="L"+nodetolabel.get(current_node)+":\n";
+ for(int i=0; i<current_node.numPrev(); i++) {
+ st+="i="+i+" "+current_node.getPrev(i);
+ }
+ st+="\n";
+ }
+ if (current_node.numNext()==0) {
+ if (map==null)
+ st+=" "+current_node.toString()+"\n";
+ else
+ st+=" "+current_node.toString()+"["+map.get(current_node)+"]\n";
+ current_node=null;
+ } else if(current_node.numNext()==1) {
+ if (map==null)
+ st+=" "+current_node.toString()+"\n";
+ else
+ st+=" "+current_node.toString()+"["+map.get(current_node)+"]\n";
+ FlatNode nextnode=current_node.getNext(0);
+ if (visited.contains(nextnode)) {
+ st+="goto L"+nodetolabel.get(nextnode)+"\n";
+ current_node=null;
+ } else
+ current_node=nextnode;
+ } else if (current_node.numNext()==2) {
+ /* Branch */
+ st+=" "+((FlatCondBranch)current_node).toString("L"+nodetolabel.get(current_node.getNext(1)))+"\n";
+ if (!visited.contains(current_node.getNext(1)))
+ tovisit.add(current_node.getNext(1));
+ if (visited.contains(current_node.getNext(0))) {
+ st+="goto L"+nodetolabel.get(current_node.getNext(0))+"\n";
+ current_node=null;
+ } else
+ current_node=current_node.getNext(0);
+ } else throw new Error();
+ }
+ return st+"}\n";
+ }
+
+ public TempDescriptor [] writesTemps() {
+ return (TempDescriptor[])parameterTemps.toArray(new TempDescriptor[ parameterTemps.size()]);
+ }
}
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