LLVMDoubleCompareNode.java

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package com.oracle.truffle.llvm.nodes.op.compare;

import com.oracle.truffle.api.CompilerAsserts;
import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.NodeChildren;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.nodes.ExplodeLoop;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;

@NodeChildren({@NodeChild(type = LLVMExpressionNode.class), @NodeChild(type = LLVMExpressionNode.class)})
public abstract class LLVMDoubleCompareNode extends LLVMExpressionNode {

    @ExplodeLoop
    private static boolean areOrdered(double... vals) {
        CompilerAsserts.compilationConstant(vals.length);
        for (double val : vals) {
            if (Double.isNaN(val)) {
                return false;
            }
        }
        return true;
    }

    public abstract static class LLVMDoubleOltNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 < val2) {
                assert areOrdered(val1, val2);
                return true;
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOgtNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 > val2) {
                assert areOrdered(val1, val2);
                return true;
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOgeNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 >= val2) {
                assert areOrdered(val1, val2);
                return true;
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOleNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 <= val2) {
                assert areOrdered(val1, val2);
                return true;
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOeqNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 == val2) {
                assert areOrdered(val1, val2);
                return true;
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOneNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            if (val1 != val2) {
                return areOrdered(val1, val2);
            } else {
                return false;
            }
        }
    }

    public abstract static class LLVMDoubleOrdNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return areOrdered(val1, val2);
        }
    }

    public abstract static class LLVMDoubleUeqNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !areOrdered(val1, val2) || val1 == val2;
        }
    }

    public abstract static class LLVMDoubleUgtNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !(val1 <= val2);
        }
    }

    public abstract static class LLVMDoubleUgeNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !(val1 < val2);
        }
    }

    public abstract static class LLVMDoubleUleNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !(val1 > val2);
        }
    }

    public abstract static class LLVMDoubleUltNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !(val1 >= val2);
        }
    }

    public abstract static class LLVMDoubleUneNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !(val1 == val2);
        }
    }

    public abstract static class LLVMDoubleUnoNode extends LLVMDoubleCompareNode {
        @Specialization
        public boolean executeI1(double val1, double val2) {
            return !areOrdered(val1, val2);
        }
    }

}