Add control flow extraction to jit compiler.

src/test/java/org/luaj/jit/LuaJitBasicTest.java

@@ -0,0 +1,53 @@
+package org.luaj.jit;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import junit.framework.TestCase;
+
+import org.luaj.compiler.LuaC;
+import org.luaj.platform.J2sePlatform;
+import org.luaj.vm.LClosure;
+import org.luaj.vm.LPrototype;
+import org.luaj.vm.LuaState;
+import org.luaj.vm.Platform;
+
+/**
+ * Simple test cases for lua jit basic functional test
+ */
+public class LuaJitBasicTest extends TestCase {
+
+	static {
+	    Platform.setInstance(new J2sePlatform());
+		LuaC.install();
+	}
+
+    public void testPrintHelloWorld() throws IOException {
+    	stringTest( "print( 'hello, world' )" );
+    }
+
+    public void testForLoop() throws IOException {
+    	stringTest( "print 'starting'\n" +
+				"for i=1,3 do\n" +
+				"	print( 'i', i )\n" +
+				"end");
+    }
+        
+	private void stringTest(String program) throws IOException {		
+		InputStream is = new ByteArrayInputStream(program.getBytes());
+		LPrototype p = LuaC.compile(is, "program");
+		run( p );
+		LPrototype q = LuaJit.jitCompile( p );
+		assertTrue(p!=q);
+		run( q );
+	}
+	
+	private static void run(LPrototype p) {
+		LuaState vm = Platform.newLuaState();
+		LClosure c = p.newClosure(vm._G);
+		vm.pushlvalue(c);
+		vm.call(0, 0);
+	}
+    
+}