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 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
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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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package com.oracle.truffle.llvm.runtime.nodes.asm;

import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.llvm.runtime.memory.LLVMStack.LLVMStackAccess;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.load.LLVMI16LoadNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.load.LLVMI32LoadNode;
import com.oracle.truffle.llvm.runtime.nodes.memory.load.LLVMI64LoadNode;
import com.oracle.truffle.llvm.runtime.pointer.LLVMPointer;

public abstract class LLVMAMD64PopNode extends LLVMExpressionNode {

    protected final LLVMStackAccess stackAccess;

    protected LLVMAMD64PopNode(LLVMStackAccess stackAccess) {
        this.stackAccess = stackAccess;
    }

    public abstract static class LLVMAMD64PopwNode extends LLVMAMD64PopNode {
        protected LLVMAMD64PopwNode(LLVMStackAccess stackAccess) {
            super(stackAccess);
        }

        @Specialization
        protected Object doI16(VirtualFrame frame,
                        @Cached LLVMI16LoadNode load) {
            LLVMPointer stackPointer = stackAccess.executeGet(frame);
            try {
                return load.executeWithTarget(stackPointer);
            } finally {
                stackAccess.executeSet(frame, stackPointer.increment(LLVMExpressionNode.I16_SIZE_IN_BYTES));
            }
        }
    }

    public abstract static class LLVMAMD64PoplNode extends LLVMAMD64PopNode {
        protected LLVMAMD64PoplNode(LLVMStackAccess stackAccess) {
            super(stackAccess);
        }

        @Specialization
        protected Object doI32(VirtualFrame frame,
                        @Cached LLVMI32LoadNode load) {
            LLVMPointer stackPointer = stackAccess.executeGet(frame);
            try {
                return load.executeWithTarget(stackPointer);
            } finally {
                stackAccess.executeSet(frame, stackPointer.increment(LLVMExpressionNode.I32_SIZE_IN_BYTES));
            }
        }
    }

    public abstract static class LLVMAMD64PopqNode extends LLVMAMD64PopNode {
        protected LLVMAMD64PopqNode(LLVMStackAccess stackAccess) {
            super(stackAccess);
        }

        @Specialization
        protected Object doI64(VirtualFrame frame,
                        @Cached LLVMI64LoadNode load) {
            LLVMPointer stackPointer = stackAccess.executeGet(frame);
            try {
                return load.executeWithTargetGeneric(stackPointer);
            } finally {
                stackAccess.executeSet(frame, stackPointer.increment(LLVMExpressionNode.I64_SIZE_IN_BYTES));
            }
        }
    }
}