LLVMSelectFactory.java example

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package com.oracle.truffle.llvm.parser.factories;

import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVM80BitFloatSelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMAddressSelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMDoubleSelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMFloatSelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMFunctionSelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMI16SelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMI1SelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMI32SelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMI64SelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMSelectNodeFactory.LLVMI8SelectNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMVectorSelectNodeFactory.LLVMI32VectorSelectNodeGen;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.types.PointerType;
import com.oracle.truffle.llvm.runtime.types.PrimitiveType;
import com.oracle.truffle.llvm.runtime.types.Type;
import com.oracle.truffle.llvm.runtime.types.VectorType;

final class LLVMSelectFactory {

    static LLVMExpressionNode createSelect(Type llvmType, LLVMExpressionNode condition, LLVMExpressionNode trueValue, LLVMExpressionNode falseValue) {
        if (Type.isFunctionOrFunctionPointer(llvmType)) {
            return LLVMFunctionSelectNodeGen.create(condition, trueValue, falseValue);
        } else if (llvmType instanceof PointerType) {
            return LLVMAddressSelectNodeGen.create(condition, trueValue, falseValue);
        } else if (llvmType instanceof PrimitiveType) {
            return handlePrimitive(llvmType, condition, trueValue, falseValue);
        } else {
            throw new AssertionError(llvmType);
        }
    }

    private static LLVMExpressionNode handlePrimitive(Type llvmType, LLVMExpressionNode condition, LLVMExpressionNode trueValue, LLVMExpressionNode falseValue) throws AssertionError {
        switch (((PrimitiveType) llvmType).getPrimitiveKind()) {
            case I1:
                return LLVMI1SelectNodeGen.create(condition, trueValue, falseValue);
            case I8:
                return LLVMI8SelectNodeGen.create(condition, trueValue, falseValue);
            case I16:
                return LLVMI16SelectNodeGen.create(condition, trueValue, falseValue);
            case I32:
                return LLVMI32SelectNodeGen.create(condition, trueValue, falseValue);
            case I64:
                return LLVMI64SelectNodeGen.create(condition, trueValue, falseValue);
            case FLOAT:
                return LLVMFloatSelectNodeGen.create(condition, trueValue, falseValue);
            case DOUBLE:
                return LLVMDoubleSelectNodeGen.create(condition, trueValue, falseValue);
            case X86_FP80:
                return LLVM80BitFloatSelectNodeGen.create(condition, trueValue, falseValue);
            default:
                throw new AssertionError(llvmType);
        }
    }

    static LLVMExpressionNode createSelectVector(Type llvmType, LLVMExpressionNode condition, LLVMExpressionNode trueValue, LLVMExpressionNode falseValue) {
        if (llvmType instanceof VectorType && ((VectorType) llvmType).getElementType() == PrimitiveType.I32) {
            return LLVMI32VectorSelectNodeGen.create(condition, trueValue, falseValue);
        } else {
            throw new AssertionError(llvmType);
        }
    }

}