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 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
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 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
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 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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package com.oracle.truffle.llvm.runtime.nodes.asm;

import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMStatementNode;
import com.oracle.truffle.llvm.runtime.nodes.asm.support.LLVMAMD64WriteValueNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.store.LLVMI16StoreNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.store.LLVMI32StoreNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.store.LLVMI64StoreNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.store.LLVMI8StoreNode;
import com.oracle.truffle.llvm.runtime.pointer.LLVMNativePointer;
import com.oracle.truffle.llvm.runtime.pointer.LLVMPointer;

@NodeChild(value = "rax", type = LLVMExpressionNode.class)
@NodeChild(value = "rdi", type = LLVMExpressionNode.class)
@NodeChild(value = "df", type = LLVMExpressionNode.class)
public abstract class LLVMAMD64StosNode extends LLVMStatementNode {
    @Child protected LLVMAMD64WriteValueNode writeRDI;

    public LLVMAMD64StosNode(LLVMAMD64WriteValueNode writeRDI) {
        this.writeRDI = writeRDI;
    }

    public abstract static class LLVMAMD64StosbNode extends LLVMAMD64StosNode {
        @Child protected LLVMI8StoreNode store;

        public LLVMAMD64StosbNode(LLVMAMD64WriteValueNode writeRDI) {
            super(writeRDI);
            store = LLVMI8StoreNode.create();
        }

        @Specialization
        protected void opI8(VirtualFrame frame, byte al, long rdi, boolean df) {
            store.executeWithTarget(LLVMNativePointer.create(rdi), al);
            writeRDI.execute(frame, rdi + (df ? -1 : 1));
        }

        @Specialization
        protected void opI8(VirtualFrame frame, byte al, LLVMPointer rdi, boolean df) {
            store.executeWithTarget(rdi, al);
            writeRDI.execute(frame, rdi.increment(df ? -1 : 1));
        }
    }

    public abstract static class LLVMAMD64StoswNode extends LLVMAMD64StosNode {
        @Child protected LLVMI16StoreNode store;

        public LLVMAMD64StoswNode(LLVMAMD64WriteValueNode writeRDI) {
            super(writeRDI);
            store = LLVMI16StoreNode.create();
        }

        @Specialization
        protected void opI8(VirtualFrame frame, short al, long rdi, boolean df) {
            store.executeWithTarget(LLVMNativePointer.create(rdi), al);
            writeRDI.execute(frame, rdi + (df ? -2 : 2));
        }

        @Specialization
        protected void opI8(VirtualFrame frame, short al, LLVMPointer rdi, boolean df) {
            store.executeWithTarget(rdi, al);
            writeRDI.execute(frame, rdi.increment(df ? -2 : 2));
        }
    }

    public abstract static class LLVMAMD64StosdNode extends LLVMAMD64StosNode {
        @Child protected LLVMI32StoreNode store;

        public LLVMAMD64StosdNode(LLVMAMD64WriteValueNode writeRDI) {
            super(writeRDI);
            store = LLVMI32StoreNode.create();
        }

        @Specialization
        protected void opI8(VirtualFrame frame, int al, long rdi, boolean df) {
            store.executeWithTarget(LLVMNativePointer.create(rdi), al);
            writeRDI.execute(frame, rdi + (df ? -4 : 4));
        }

        @Specialization
        protected void opI8(VirtualFrame frame, int al, LLVMPointer rdi, boolean df) {
            store.executeWithTarget(rdi, al);
            writeRDI.execute(frame, rdi.increment(df ? -4 : 4));
        }
    }

    public abstract static class LLVMAMD64StosqNode extends LLVMAMD64StosNode {
        @Child protected LLVMI64StoreNode store;

        public LLVMAMD64StosqNode(LLVMAMD64WriteValueNode writeRDI) {
            super(writeRDI);
            store = LLVMI64StoreNode.create();
        }

        @Specialization
        protected void opI8(VirtualFrame frame, long al, long rdi, boolean df) {
            store.executeWithTarget(LLVMNativePointer.create(rdi), al);
            writeRDI.execute(frame, rdi + (df ? -8 : 8));
        }

        @Specialization
        protected void opI8(VirtualFrame frame, long al, LLVMPointer rdi, boolean df) {
            store.executeWithTarget(rdi, al);
            writeRDI.execute(frame, rdi.increment(df ? -8 : 8));
        }
    }
}