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  1. JDK
  2. JDK-8298342

RISC-V: RoundDoubleModeV does not use dynamic rounding mode correctly

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    • riscv
    • linux

    Description

      Currently, the `vfcvt_rtz_x_f_v` operand is being used in `RoundDoubleModeV`. We use the `csrwi` instruction to set frm for different rounding mode, which is similar to scalar calculations. But `vfcvt_rtz_x_f_v` will not use dynamic rounding mode.

      The test `TestDoubleVect.java`[1] will not cover `RoundDoubleModeV` as expected, I'm continuing to debug or write new test cases, but maybe that will be another issue.

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          duplicates

          Enhancement - null JDK-8306966 RISC-V: Support vector cast node for Vector API

          • 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-8276799 Implementation of JEP 422: Linux/RISC-V Port

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

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              dzhang Dingli Zhang
              dzhang Dingli Zhang
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                Created:
                Updated:
                Resolved: