LLVMStructWriteNode.java

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package com.oracle.truffle.llvm.nodes.base;

import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.llvm.runtime.LLVMAddress;
import com.oracle.truffle.llvm.runtime.LLVMFunction;
import com.oracle.truffle.llvm.runtime.floating.LLVM80BitFloat;
import com.oracle.truffle.llvm.runtime.global.LLVMGlobalVariable;
import com.oracle.truffle.llvm.runtime.memory.LLVMHeap;
import com.oracle.truffle.llvm.runtime.memory.LLVMMemory;
import com.oracle.truffle.llvm.runtime.memory.LLVMNativeFunctions;
import com.oracle.truffle.llvm.runtime.memory.LLVMNativeFunctions.MemCopyNode;

public abstract class LLVMStructWriteNode extends Node {

    public abstract Object executeWrite(VirtualFrame frame, Object address, Object value);

    public abstract static class LLVMPrimitiveStructWriteNode extends LLVMStructWriteNode {

        @Specialization
        public Object executeWrite(LLVMAddress address, boolean value) {
            LLVMMemory.putI1(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, byte value) {
            LLVMMemory.putI8(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, short value) {
            LLVMMemory.putI16(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, int value) {
            LLVMMemory.putI32(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, long value) {
            LLVMMemory.putI64(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, float value) {
            LLVMMemory.putFloat(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, double value) {
            LLVMMemory.putDouble(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVM80BitFloat value) {
            LLVMMemory.put80BitFloat(address, value);
            return null;
        }

        // global variable descriptor

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, boolean value) {
            address.putI1(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, byte value) {
            address.putI8(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, short value) {
            address.putI16(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, int value) {
            address.putI32(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, long value) {
            address.putI64(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, float value) {
            address.putFloat(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, double value) {
            address.putDouble(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, LLVM80BitFloat value) {
            LLVMMemory.put80BitFloat(address.getNativeLocation(), value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVMAddress value) {
            LLVMMemory.putAddress(address, value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, LLVMAddress value) {
            address.putAddress(value);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVMGlobalVariable value) {
            LLVMMemory.putAddress(address, value.getNativeLocation());
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, LLVMGlobalVariable value) {
            LLVMMemory.putAddress(address.getNativeLocation(), value.getNativeLocation());
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVMFunction value) {
            LLVMHeap.putFunctionPointer(address, value.getFunctionPointer());
            return null;
        }
    }

    public abstract static class LLVMCompoundStructWriteNode extends LLVMStructWriteNode {

        private int size;

        @Child private MemCopyNode memCopy;

        public LLVMCompoundStructWriteNode(LLVMNativeFunctions heapFunctions, int size) {
            this.size = size;
            this.memCopy = heapFunctions.createMemCopyNode();
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVMAddress value) {
            memCopy.execute(address, value, size);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, LLVMAddress value) {
            memCopy.execute(address.getNativeLocation(), value, size);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMAddress address, LLVMGlobalVariable value) {
            memCopy.execute(address, value.getNativeLocation(), size);
            return null;
        }

        @Specialization
        public Object executeWrite(LLVMGlobalVariable address, LLVMGlobalVariable value) {
            memCopy.execute(address.getNativeLocation(), value.getNativeLocation(), size);
            return null;
        }

    }

    public abstract static class LLVMEmptyStructWriteNode extends LLVMStructWriteNode {

        @Specialization
        @SuppressWarnings("unused")
        public Object executeWrite(LLVMAddress address, Object value) {
            return null;
        }

    }

}