src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Long256Vector.java

rev 49509 : [vector] Intrinsic support for resize

*** 705,717 ****
      public <F> Vector<F, Shapes.S256Bit> rebracket(Species<F, Shapes.S256Bit> 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(
              Long256Vector.class, long.class, LENGTH,
!             species.elementType(), this,
              (v, t) -> species.reshape(v)
          );
      }
  
      // Accessors
--- 705,717 ----
      public <F> Vector<F, Shapes.S256Bit> rebracket(Species<F, Shapes.S256Bit> 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(
              Long256Vector.class, long.class, LENGTH,
!             species.elementType(), species.length(), this,
              (v, t) -> species.reshape(v)
          );
      }
  
      // Accessors
*** 796,808 ****
          @ForceInline
          @SuppressWarnings("unchecked")
          public <Z> Mask<Z, Shapes.S256Bit> rebracket(Species<Z, Shapes.S256Bit> species) {
              Objects.requireNonNull(species);
              // TODO: check proper element type
!             return VectorIntrinsics.rebracket(
                  Long256Mask.class, long.class, LENGTH,
!                 species.elementType(), this,
                  (m, t) -> m.reshape(species)
              );
          }
  
          // Unary operations
--- 796,808 ----
          @ForceInline
          @SuppressWarnings("unchecked")
          public <Z> Mask<Z, Shapes.S256Bit> rebracket(Species<Z, Shapes.S256Bit> species) {
              Objects.requireNonNull(species);
              // TODO: check proper element type
!             return VectorIntrinsics.reinterpret(
                  Long256Mask.class, long.class, LENGTH,
!                 species.elementType(), species.length(), this,
                  (m, t) -> m.reshape(species)
              );
          }
  
          // Unary operations
*** 895,924 ****
--- 895,929 ----
             sb.append("]");
             return sb.toString();
          }
  
          @Override
+         @ForceInline
          public int bitSize() {
              return BIT_SIZE;
          }
  
          @Override
+         @ForceInline
          public int length() {
              return LENGTH;
          }
  
          @Override
+         @ForceInline
          public Class<Long> elementType() {
              return Long.class;
          }
  
          @Override
+         @ForceInline
          public int elementSize() {
              return Long.SIZE;
          }
  
          @Override
+         @ForceInline
          public Shapes.S256Bit shape() {
              return Shapes.S_256_BIT;
          }
  
          @Override
*** 1010,1016 ****
--- 1015,1059 ----
          @Override
          @ForceInline
          public Long256Vector fromArray(long[] a, int ax, Mask<Long, Shapes.S256Bit> 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> Long256Vector resize(Vector<Long, T> o) {
+             Objects.requireNonNull(o);
+             if (o.bitSize() == 64) {
+                 Long64Vector so = (Long64Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Long64Vector.class, long.class, so.length(),
+                     Long.class, LENGTH, so,
+                     (v, t) -> (Long256Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 128) {
+                 Long128Vector so = (Long128Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Long128Vector.class, long.class, so.length(),
+                     Long.class, LENGTH, so,
+                     (v, t) -> (Long256Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 256) {
+                 Long256Vector so = (Long256Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Long256Vector.class, long.class, so.length(),
+                     Long.class, LENGTH, so,
+                     (v, t) -> (Long256Vector)reshape(v)
+                 );
+             } else if (o.bitSize() == 512) {
+                 Long512Vector so = (Long512Vector)o;
+                 return VectorIntrinsics.reinterpret(
+                     Long512Vector.class, long.class, so.length(),
+                     Long.class, LENGTH, so,
+                     (v, t) -> (Long256Vector)reshape(v)
+                 );
+             } else {
+                 throw new InternalError("Unimplemented size");
+             }
+         }
      }
  }