src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Double512Vector.java

rev 49509 : [vector] Intrinsic support for resize

*** 717,729 ****
      public <F> Vector<F, Shapes.S512Bit> rebracket(Species<F, Shapes.S512Bit> species) {
          Objects.requireNonNull(species);
          // TODO: check proper element type
          // TODO: update to pass the two species as an arguments and ideally
          // push down intrinsic call into species implementation
!         return VectorIntrinsics.rebracket(
              Double512Vector.class, double.class, LENGTH,
!             species.elementType(), this,
              (v, t) -> species.reshape(v)
          );
      }
  
      // Accessors
--- 717,729 ----
      public <F> Vector<F, Shapes.S512Bit> rebracket(Species<F, Shapes.S512Bit> species) {
          Objects.requireNonNull(species);
          // TODO: check proper element type
          // TODO: update to pass the two species as an arguments and ideally
          // push down intrinsic call into species implementation
!         return VectorIntrinsics.reinterpret(
              Double512Vector.class, double.class, LENGTH,
!             species.elementType(), species.length(), this,
              (v, t) -> species.reshape(v)
          );
      }
  
      // Accessors
*** 808,820 ****
          @ForceInline
          @SuppressWarnings("unchecked")
          public <Z> Mask<Z, Shapes.S512Bit> rebracket(Species<Z, Shapes.S512Bit> species) {
              Objects.requireNonNull(species);
              // TODO: check proper element type
!             return VectorIntrinsics.rebracket(
                  Double512Mask.class, double.class, LENGTH,
!                 species.elementType(), this,
                  (m, t) -> m.reshape(species)
              );
          }
  
          // Unary operations
--- 808,820 ----
          @ForceInline
          @SuppressWarnings("unchecked")
          public <Z> Mask<Z, Shapes.S512Bit> rebracket(Species<Z, Shapes.S512Bit> species) {
              Objects.requireNonNull(species);
              // TODO: check proper element type
!             return VectorIntrinsics.reinterpret(
                  Double512Mask.class, double.class, LENGTH,
!                 species.elementType(), species.length(), this,
                  (m, t) -> m.reshape(species)
              );
          }
  
          // Unary operations
*** 907,936 ****
--- 907,941 ----
             sb.append("]");
             return sb.toString();
          }
  
          @Override
+         @ForceInline
          public int bitSize() {
              return BIT_SIZE;
          }
  
          @Override
+         @ForceInline
          public int length() {
              return LENGTH;
          }
  
          @Override
+         @ForceInline
          public Class<Double> elementType() {
              return Double.class;
          }
  
          @Override
+         @ForceInline
          public int elementSize() {
              return Double.SIZE;
          }
  
          @Override
+         @ForceInline
          public Shapes.S512Bit shape() {
              return Shapes.S_512_BIT;
          }
  
          @Override
*** 1022,1028 ****
--- 1027,1071 ----
          @Override
          @ForceInline
          public Double512Vector fromArray(double[] a, int ax, Mask<Double, Shapes.S512Bit> m) {
              return zero().blend(fromArray(a, ax), m); // TODO: use better default impl: op(m, i -> a[ax + i]);
          }
+ 
+         @Override
+         @ForceInline
+         @SuppressWarnings("unchecked")
+         public <T extends Shape> Double512Vector resize(Vector<Double, T> o) {
+             Objects.requireNonNull(o);
+             if (o.bitSize() == 64) {
+                 Double64Vector so = (Double64Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Double64Vector.class, double.class, so.length(),
+                     Double.class, LENGTH, so,
+                     (v, t) -> (Double512Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 128) {
+                 Double128Vector so = (Double128Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Double128Vector.class, double.class, so.length(),
+                     Double.class, LENGTH, so,
+                     (v, t) -> (Double512Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 256) {
+                 Double256Vector so = (Double256Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Double256Vector.class, double.class, so.length(),
+                     Double.class, LENGTH, so,
+                     (v, t) -> (Double512Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 512) {
+                 Double512Vector so = (Double512Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Double512Vector.class, double.class, so.length(),
+                     Double.class, LENGTH, so,
+                     (v, t) -> (Double512Vector)reshape(v)
+                 );
+             } else {
+                 throw new InternalError("Unimplemented size");
+             }
+         }
      }
  }