RFR: 8289552: Make intrinsic conversions between bit representations of half precision values and floats

[Smita Kamath]

8289552: Make intrinsic conversions between bit representations of half precision values and floats

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Commit messages:
 - Intrinsic conversions between halffloat and floats

Changes: https://git.openjdk.org/jdk/pull/9781/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9781&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8289552
  Stats: 220 lines in 13 files changed: 212 ins; 5 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/9781.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9781/head:pull/9781

PR: https://git.openjdk.org/jdk/pull/9781