// a C# example adapted from http://www.mdevan.org/llvm-py/examples.html
public static int Main()
{
//Target.initializeX86Target();
var myModule = Gen.Core.moduleCreateWithName("tut2");
// create a function type taking 2 integers, return a 32-bit integer
var tyInt = Gen.Core.int32Type();
var funcType = Core.functionType(tyInt, new Gen.Core.TypeRef[] {tyInt, tyInt});
// create a function of that type
var gcd = Gen.Core.addFunction(myModule, "gcd", funcType);
var x = Gen.Core.getParam(gcd, 0u);
var y = Gen.Core.getParam(gcd, 1u);
Gen.Core.setValueName(x, "x");
Gen.Core.setValueName(y, "y");
// implement the function
// blocks...
var entry = Gen.Core.appendBasicBlock(gcd, "entry");
var ret = Gen.Core.appendBasicBlock(gcd, "return");
var condFalse = Gen.Core.appendBasicBlock(gcd, "cond_false");
var condTrue = Gen.Core.appendBasicBlock(gcd, "cond_true");
var condFalse2 = Gen.Core.appendBasicBlock(gcd, "cond_false_2");
// create a builder
var bldr = new Core.Builder();
Gen.Core.positionBuilderAtEnd(bldr, entry);
var xEqY = Gen.Core.buildICmp(bldr, Gen.Core.IntPredicate.IntEQ, x, y, "tmp");
Gen.Core.buildCondBr(bldr, xEqY, ret, condFalse);
Gen.Core.positionBuilderAtEnd(bldr, ret);
Gen.Core.buildRet(bldr, x);
Gen.Core.positionBuilderAtEnd(bldr, condFalse);
var xLtY = Gen.Core.buildICmp(bldr, Gen.Core.IntPredicate.IntULT, x, y, "tmp");
Gen.Core.buildCondBr(bldr, xLtY, condTrue, condFalse2);
Gen.Core.positionBuilderAtEnd(bldr, condTrue);
var ySubX = Gen.Core.buildSub(bldr, y, x, "tmp");
var recur1 = Core.buildCall(bldr, gcd, new Gen.Core.ValueRef[] {x, ySubX}, "tmp");
Gen.Core.buildRet(bldr, recur1);
Gen.Core.positionBuilderAtEnd(bldr, condFalse2);
var xSubY = Gen.Core.buildSub(bldr, x, y, "x_sub_y");
var recur2 = Core.buildCall(bldr, gcd, new Gen.Core.ValueRef[] {xSubY, y}, "tmp");
Gen.Core.buildRet(bldr, recur2);
Gen.Core.dumpModule(myModule);
Gen.BitWriter.writeBitcodeToFile(myModule, "tut2.bc");
var myEng = ExecutionEngine.createExecutionEngineForModule(myModule);
var _36 = Gen.ExecutionEngine.createGenericValueOfInt(tyInt, 36UL, false);
var _81 = Gen.ExecutionEngine.createGenericValueOfInt(tyInt, 81UL, false);
var result1 = ExecutionEngine.runFunction(
myEng,
gcd,
new Gen.ExecutionEngine.GenericValueRef[] {_36, _81});
System.Console.WriteLine(
"gcd(36, 81) -> " +
Gen.ExecutionEngine.genericValueToInt(result1, false));
// exit code
return 0;
}
public void CanSetupAtomic()
{
Core.Builder builder = this.CreateTo(this.CreateRoute());
builder = this.CreateAtomic(builder);
Assert.IsTrue(builder.IsAtomic);
}
public void CanSetupError()
{
Core.Builder builder = this.CreateTo(this.CreateRoute());
builder.Error(this.errorComponent.Object);
Assert.IsTrue(builder.WillProcessError);
}
public void CanChainTwoTo()
{
Core.Builder builder = this.CreateTo(this.CreateRoute());
builder.To("test://world?myHeader=Test");
Assert.IsTrue(builder.ToComponentCount == 2);
}
public void CanCreateTo()
{
Core.Builder builder = this.CreateTo(this.CreateRoute());
Assert.IsTrue(builder.ToComponentCount == 1);
}
private Core.Builder CreateAtomic(Core.Builder builder, string route = "test://hello")
{
return(builder.Atomic(route));
}
