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  1. JDK
  2. JDK-8289552

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

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 20
    • 20
    • hotspot
    • b19

    Description

      Make intrinsic on supporting x86 hardware the methods convert between the bit representation of a half precision floating point (float16) value and float.

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        Issue Links

          blocks

          Enhancement - null JDK-8293323 test case for f2hf and hf2f methods in sharedRuntime.cpp

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

          Enhancement - null JDK-8289551 Conversions between bit representations of half precision values and floats

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

          Sub-task - The sub-task of the issue JDK-8303035 Release Note: java.lang.Float.floatToFloat16 and java.lang.Float.float16ToFloat May Return Different NaN Results when Optimized by the JIT Compiler

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8302976 C2 Intrinsification of Float.floatToFloat16 and Float.float16ToFloat Yields Different Result than the Interpreter

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8309660 C2: failed: XMM register should be 0-15 (UseKNLSetting and ConvF2HF)

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8295351 java/lang/Float/Binary16Conversion.java fails with "Unexpected result of converting"

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Enhancement - null JDK-8294588 Auto vectorize half precision floating point conversion APIs

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

          Enhancement - null JDK-8295276 AArch64: Add backend support for half float conversion intrinsics

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

          Enhancement - null JDK-8299525 RISC-V: Add backend support for half float conversion intrinsics

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

          Commit Commit openjdk/jdk/07946aa4

          Review Review openjdk/jdk/9781

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            People

              svkamath Smita Kamath
              psandoz Paul Sandoz
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              Dates

                Created:
                Updated:
                Resolved: