LLVMMemoryReadWriteFactory.java example

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/*
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 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
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package com.oracle.truffle.llvm.parser.factories;

import com.oracle.truffle.api.source.SourceSection;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadDoubleVectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadFloatVectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadI16VectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadI1VectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadI32VectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadI64VectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMLoadVectorNodeFactory.LLVMLoadI8VectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVM80BitFloatStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMAddressStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMDoubleStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMFloatStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMFunctionStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMGlobalVariableStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMI16StoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMI1StoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMI32StoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMI64StoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMI8StoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMIVarBitStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreNodeFactory.LLVMStructStoreNodeGen;
import com.oracle.truffle.llvm.nodes.memory.LLVMStoreVectorNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNode.LLVMGlobalVariableDirectLoadNode;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNodeFactory.LLVM80BitFloatDirectLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNodeFactory.LLVMAddressDirectLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNodeFactory.LLVMFunctionDirectLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNodeFactory.LLVMIVarBitDirectLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDirectLoadNodeFactory.LLVMStructDirectLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMDoubleLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMFloatLoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMI16LoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMI1LoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMI32LoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMI64LoadNodeGen;
import com.oracle.truffle.llvm.nodes.memory.load.LLVMI8LoadNodeGen;
import com.oracle.truffle.llvm.nodes.others.LLVMAccessGlobalVariableStorageNode;
import com.oracle.truffle.llvm.parser.LLVMParserRuntime;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.types.ArrayType;
import com.oracle.truffle.llvm.runtime.types.PointerType;
import com.oracle.truffle.llvm.runtime.types.PrimitiveType;
import com.oracle.truffle.llvm.runtime.types.StructureType;
import com.oracle.truffle.llvm.runtime.types.Type;
import com.oracle.truffle.llvm.runtime.types.VariableBitWidthType;
import com.oracle.truffle.llvm.runtime.types.VectorType;

final class LLVMMemoryReadWriteFactory {

    private LLVMMemoryReadWriteFactory() {
    }

    static LLVMExpressionNode createLoad(Type resolvedResultType, LLVMExpressionNode loadTarget) {
        if (resolvedResultType instanceof VectorType) {
            return createLoadVector((VectorType) resolvedResultType, loadTarget, ((VectorType) resolvedResultType).getNumberOfElements());
        } else {
            int bits = resolvedResultType instanceof VariableBitWidthType
                            ? resolvedResultType.getBitSize()
                            : 0;
            return createLoad(resolvedResultType, loadTarget, bits);
        }
    }

    private static LLVMExpressionNode createLoad(Type resultType, LLVMExpressionNode loadTarget, int bits) {
        if (resultType instanceof PrimitiveType) {
            switch (((PrimitiveType) resultType).getPrimitiveKind()) {
                case I1:
                    return LLVMI1LoadNodeGen.create(loadTarget);
                case I8:
                    return LLVMI8LoadNodeGen.create(loadTarget);
                case I16:
                    return LLVMI16LoadNodeGen.create(loadTarget);
                case I32:
                    return LLVMI32LoadNodeGen.create(loadTarget);
                case I64:
                    return LLVMI64LoadNodeGen.create(loadTarget);
                case FLOAT:
                    return LLVMFloatLoadNodeGen.create(loadTarget);
                case DOUBLE:
                    return LLVMDoubleLoadNodeGen.create(loadTarget);
                case X86_FP80:
                    return LLVM80BitFloatDirectLoadNodeGen.create(loadTarget);
                default:
                    throw new AssertionError(resultType);
            }
        } else if (resultType instanceof VariableBitWidthType) {
            return LLVMIVarBitDirectLoadNodeGen.create(loadTarget, bits);
        } else if (Type.isFunctionOrFunctionPointer(resultType)) {
            return LLVMFunctionDirectLoadNodeGen.create(loadTarget);
        } else if (resultType instanceof StructureType || resultType instanceof ArrayType) {
            return LLVMStructDirectLoadNodeGen.create(loadTarget);
        } else if (resultType instanceof PointerType) {
            if (loadTarget instanceof LLVMAccessGlobalVariableStorageNode) {
                return new LLVMGlobalVariableDirectLoadNode(((LLVMAccessGlobalVariableStorageNode) loadTarget).getDescriptor());
            } else {
                return LLVMAddressDirectLoadNodeGen.create(loadTarget);
            }
        } else {
            throw new AssertionError(resultType);
        }
    }

    private static LLVMExpressionNode createLoadVector(VectorType resultType, LLVMExpressionNode loadTarget, int size) {
        switch (resultType.getElementType().getPrimitiveKind()) {
            case I1:
                return LLVMLoadI1VectorNodeGen.create(loadTarget, size);
            case I8:
                return LLVMLoadI8VectorNodeGen.create(loadTarget, size);
            case I16:
                return LLVMLoadI16VectorNodeGen.create(loadTarget, size);
            case I32:
                return LLVMLoadI32VectorNodeGen.create(loadTarget, size);
            case I64:
                return LLVMLoadI64VectorNodeGen.create(loadTarget, size);
            case FLOAT:
                return LLVMLoadFloatVectorNodeGen.create(loadTarget, size);
            case DOUBLE:
                return LLVMLoadDoubleVectorNodeGen.create(loadTarget, size);
            default:
                throw new AssertionError(resultType);
        }
    }

    static LLVMExpressionNode createStore(LLVMParserRuntime runtime, LLVMExpressionNode pointerNode, LLVMExpressionNode valueNode, Type type, SourceSection source) {
        return createStore(runtime, pointerNode, valueNode, type, runtime.getByteSize(type), source);
    }

    private static LLVMExpressionNode createStore(LLVMParserRuntime runtime, LLVMExpressionNode pointerNode, LLVMExpressionNode valueNode, Type type, int size, SourceSection source) {
        if (type instanceof PrimitiveType) {
            switch (((PrimitiveType) type).getPrimitiveKind()) {
                case I1:
                    return LLVMI1StoreNodeGen.create(source, pointerNode, valueNode);
                case I8:
                    return LLVMI8StoreNodeGen.create(source, pointerNode, valueNode);
                case I16:
                    return LLVMI16StoreNodeGen.create(source, pointerNode, valueNode);
                case I32:
                    return LLVMI32StoreNodeGen.create(source, pointerNode, valueNode);
                case I64:
                    return LLVMI64StoreNodeGen.create(source, pointerNode, valueNode);
                case FLOAT:
                    return LLVMFloatStoreNodeGen.create(source, pointerNode, valueNode);
                case DOUBLE:
                    return LLVMDoubleStoreNodeGen.create(source, pointerNode, valueNode);
                case X86_FP80:
                    return LLVM80BitFloatStoreNodeGen.create(source, pointerNode, valueNode);
                default:
                    throw new AssertionError(type);
            }
        } else if (type instanceof VariableBitWidthType) {
            return LLVMIVarBitStoreNodeGen.create((VariableBitWidthType) type, source, pointerNode, valueNode);
        } else if (Type.isFunctionOrFunctionPointer(type)) {
            return LLVMFunctionStoreNodeGen.create(type, source, pointerNode, valueNode);
        } else if (type instanceof StructureType || type instanceof ArrayType) {
            return LLVMStructStoreNodeGen.create(runtime.getNativeFunctions(), type, source, pointerNode, valueNode, size);
        } else if (type instanceof PointerType) {
            if (pointerNode instanceof LLVMAccessGlobalVariableStorageNode) {
                return LLVMGlobalVariableStoreNodeGen.create(((LLVMAccessGlobalVariableStorageNode) pointerNode).getDescriptor(), source, valueNode);
            } else {
                return LLVMAddressStoreNodeGen.create(type, source, pointerNode, valueNode);
            }
        } else if (type instanceof VectorType) {
            return LLVMStoreVectorNodeGen.create(type, source, pointerNode, valueNode);
        } else {
            throw new AssertionError(type);
        }
    }

}