Added info that ORC is newer than MCJIT to the readme.

llvm/README.md

@@ -61,6 +61,8 @@ We can use [Maven 3](http://maven.apache.org/) to download and install automatic
 
 ### The `Factorial.java` source file
 
+This example is based on MCJIT. There is a newer alternative called ORC. You can find an example using ORC [here](samples/llvm/OrcJit.java).
+
 ```java
 import org.bytedeco.javacpp.*;
 import org.bytedeco.llvm.LLVM.*;
@@ -73,11 +75,8 @@ public class Factorial {
 
     public static void main(String[] args) {
         // Stage 1: Initialize LLVM components
-        LLVMInitializeCore(LLVMGetGlobalPassRegistry());
-        LLVMLinkInMCJIT();
-        LLVMInitializeNativeAsmPrinter();
-        LLVMInitializeNativeAsmParser();
-        LLVMInitializeNativeTarget();
+	    LLVMInitializeNativeTarget();
+	    LLVMInitializeNativeAsmPrinter();
 
         // Stage 2: Build the factorial function.
         LLVMContextRef context = LLVMContextCreate();
@@ -119,6 +118,9 @@ public class Factorial {
         LLVMAddIncoming(phi, phiValues, phiBlocks, /* pairCount */ 2);
         LLVMBuildRet(builder, phi);
 
+	    // Print generated LLVM-IR to console (optional)
+	    LLVMDumpModule(module);
+
         // Stage 3: Verify the module using LLVMVerifier
         if (LLVMVerifyModule(module, LLVMPrintMessageAction, error) != 0) {
             LLVMDisposeMessage(error);
@@ -127,11 +129,7 @@ public class Factorial {
 
         // Stage 4: Create a pass pipeline using the legacy pass manager
         LLVMPassManagerRef pm = LLVMCreatePassManager();
-        LLVMAddAggressiveInstCombinerPass(pm);
-        LLVMAddNewGVNPass(pm);
-        LLVMAddCFGSimplificationPass(pm);
         LLVMRunPassManager(pm, module);
-        LLVMDumpModule(module);
 
         // Stage 5: Execute the code using MCJIT
         LLVMExecutionEngineRef engine = new LLVMExecutionEngineRef();
@@ -145,8 +143,8 @@ public class Factorial {
         LLVMGenericValueRef argument = LLVMCreateGenericValueOfInt(i32Type, 10, /* signExtend */ 0);
         LLVMGenericValueRef result = LLVMRunFunction(engine, factorial, /* argumentCount */ 1, argument);
         System.out.println();
-        System.out.println("; Running factorial(10) with MCJIT...");
-        System.out.println("; Result: " + LLVMGenericValueToInt(result, /* signExtend */ 0));
+        System.out.println("Running factorial(10) with MCJIT...");
+        System.out.println("Result: " + LLVMGenericValueToInt(result, /* signExtend */ 0));
 
         // Stage 6: Dispose of the allocated resources
         LLVMDisposeExecutionEngine(engine);