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  1. JDK
  2. JDK-8259948

Aarch64: Add cast nodes for Aarch64 Neon backend

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    • b21
    • aarch64

    Description

      There are many nodes missing their implementation for aarch64 neon backend. For instance,

          public static void testVectorCastB2L(byte[] input, long[] output) {
              ByteVector av = ByteVector.fromArray(SPECIESb, input, 0);
              LongVector bv = (LongVector) av.castShape(SPECIESl, 0);
              bv.intoArray(output, 0);
          }

      will trigger a `bad AD file` error.

      In this issue, we plan to complete all missing implementation for aarch64 neon backend. For example, cast from Byte to Long, cast from Long to Byte, and so on.

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8268966 AArch64: 'bad AD file' in some vector conversion tests

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8269866 AArch64: unsupport missing rules for vector conversion.

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. JDK-8272413 Incorrect num of element count calculation for vector cast

          • P3 - Major loss of function.
          • Resolved
          relates to

          Enhancement - null JDK-8269866 AArch64: unsupport missing rules for vector conversion.

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8276151 AArch64: Incorrect result for double to int vector conversion

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8282764 AArch64: compiler/vectorapi/reshape/TestVectorCastNeon.java failed with incorrect result

          • P3 - Major loss of function.
          • Resolved
          links to

          Commit Commit openjdk/jdk/9f75d5ce

          Review Review openjdk/jdk/4839

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              whuang Wang Huang
              whuang Wang Huang
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              Dates

                Created:
                Updated:
                Resolved: