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src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java

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rev 52233 : Add scalable shapes for Arm Scalable Vector Extension.
Summary: Add scalable vector shapes to support Arm SVE better.
Reviewed-by: duke


1619 
1620     /**
1621      * Finds a species for an element type of {@code double} and shape.
1622      *
1623      * @param s the shape
1624      * @param <S> the type of shape
1625      * @return a species for an element type of {@code double} and shape
1626      * @throws IllegalArgumentException if no such species exists for the shape
1627      */
1628     @SuppressWarnings("unchecked")
1629     public static <S extends Shape> DoubleSpecies<S> species(S s) {
1630         Objects.requireNonNull(s);
1631         if (s == Shapes.S_64_BIT) {
1632             return (DoubleSpecies<S>) Double64Vector.SPECIES;
1633         } else if (s == Shapes.S_128_BIT) {
1634             return (DoubleSpecies<S>) Double128Vector.SPECIES;
1635         } else if (s == Shapes.S_256_BIT) {
1636             return (DoubleSpecies<S>) Double256Vector.SPECIES;
1637         } else if (s == Shapes.S_512_BIT) {
1638             return (DoubleSpecies<S>) Double512Vector.SPECIES;


1639         } else {
1640             throw new IllegalArgumentException("Bad shape: " + s);
1641         }
1642     }
1643 }



1619 
1620     /**
1621      * Finds a species for an element type of {@code double} and shape.
1622      *
1623      * @param s the shape
1624      * @param <S> the type of shape
1625      * @return a species for an element type of {@code double} and shape
1626      * @throws IllegalArgumentException if no such species exists for the shape
1627      */
1628     @SuppressWarnings("unchecked")
1629     public static <S extends Shape> DoubleSpecies<S> species(S s) {
1630         Objects.requireNonNull(s);
1631         if (s == Shapes.S_64_BIT) {
1632             return (DoubleSpecies<S>) Double64Vector.SPECIES;
1633         } else if (s == Shapes.S_128_BIT) {
1634             return (DoubleSpecies<S>) Double128Vector.SPECIES;
1635         } else if (s == Shapes.S_256_BIT) {
1636             return (DoubleSpecies<S>) Double256Vector.SPECIES;
1637         } else if (s == Shapes.S_512_BIT) {
1638             return (DoubleSpecies<S>) Double512Vector.SPECIES;
1639         } else if (s == Shapes.S_Scalable_BIT) {
1640             return (DoubleSpecies<S>) DoubleScalableVector.SPECIES;
1641         } else {
1642             throw new IllegalArgumentException("Bad shape: " + s);
1643         }
1644     }
1645 }
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