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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
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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.NodeChild;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.llvm.runtime.nodes.asm.support.LLVMAMD64UpdateFlagsNode.LLVMAMD64UpdateCPZSOFlagsNode;
import com.oracle.truffle.llvm.runtime.nodes.asm.support.LLVMAMD64WriteTupelNode;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMStatementNode;

@NodeChild(value = "left", type = LLVMExpressionNode.class)
@NodeChild(value = "right", type = LLVMExpressionNode.class)
public abstract class LLVMAMD64XaddNode extends LLVMStatementNode {
    @Child protected LLVMAMD64UpdateCPZSOFlagsNode flags;

    @Child protected LLVMAMD64WriteTupelNode out;

    private LLVMAMD64XaddNode(LLVMAMD64UpdateCPZSOFlagsNode flags, LLVMAMD64WriteTupelNode out) {
        this.flags = flags;
        this.out = out;
    }

    public abstract static class LLVMAMD64XaddbNode extends LLVMAMD64XaddNode {
        public LLVMAMD64XaddbNode(LLVMAMD64UpdateCPZSOFlagsNode flags, LLVMAMD64WriteTupelNode out) {
            super(flags, out);
        }

        @Specialization
        protected void doOp(VirtualFrame frame, byte left, byte right) {
            byte result = (byte) (left + right);
            boolean overflow = (result < 0 && left > 0 && right > 0) || (result > 0 && left < 0 && right < 0);
            boolean carry = ((left < 0 || right < 0) && result > 0) || (left < 0 && right < 0);
            flags.execute(frame, overflow, carry, result);
            out.execute(frame, right, result);
        }
    }

    public abstract static class LLVMAMD64XaddwNode extends LLVMAMD64XaddNode {
        public LLVMAMD64XaddwNode(LLVMAMD64UpdateCPZSOFlagsNode flags, LLVMAMD64WriteTupelNode out) {
            super(flags, out);
        }

        @Specialization
        protected void doOp(VirtualFrame frame, short left, short right) {
            short result = (short) (left + right);
            boolean overflow = (result < 0 && left > 0 && right > 0) || (result > 0 && left < 0 && right < 0);
            boolean carry = ((left < 0 || right < 0) && result > 0) || (left < 0 && right < 0);
            flags.execute(frame, overflow, carry, result);
            out.execute(frame, right, result);
        }
    }

    public abstract static class LLVMAMD64XaddlNode extends LLVMAMD64XaddNode {
        public LLVMAMD64XaddlNode(LLVMAMD64UpdateCPZSOFlagsNode flags, LLVMAMD64WriteTupelNode out) {
            super(flags, out);
        }

        @Specialization
        protected void doOp(VirtualFrame frame, int left, int right) {
            int result = left + right;
            boolean overflow = (result < 0 && left > 0 && right > 0) || (result > 0 && left < 0 && right < 0);
            boolean carry = ((left < 0 || right < 0) && result > 0) || (left < 0 && right < 0);
            flags.execute(frame, overflow, carry, result);
            out.execute(frame, right, result);
        }
    }

    public abstract static class LLVMAMD64XaddqNode extends LLVMAMD64XaddNode {
        public LLVMAMD64XaddqNode(LLVMAMD64UpdateCPZSOFlagsNode flags, LLVMAMD64WriteTupelNode out) {
            super(flags, out);
        }

        @Specialization
        protected void doOp(VirtualFrame frame, long left, long right) {
            long result = left + right;
            boolean overflow = (result < 0 && left > 0 && right > 0) || (result > 0 && left < 0 && right < 0);
            boolean carry = ((left < 0 || right < 0) && result > 0) || (left < 0 && right < 0);
            flags.execute(frame, overflow, carry, result);
            out.execute(frame, right, result);
        }
    }
}