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  1. JDK
  2. JDK-8303113

[SuperWord] investigate if enabling _do_vector_loop by default creates speedup

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      See discussion in PR:
      https://github.com/openjdk/jdk/pull/12350

      Also see
      https://github.com/openjdk/jdk/pull/12350#issuecomment-1469539789

      Check if these cases can be vectorized with it. Add IR tests for TestPickLastMemoryState.java.

      Consider splitting packs, when we have conversion, and one type has more elements per vector than the other.

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          relates to

          Enhancement - null JDK-8260943 C2 SuperWord: Remove dead vectorization optimization added by 8076284

          • 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-8298935 fix independence bug in create_pack logic in SuperWord::find_adjacent_refs

          • P3 - Major loss of function.
          • Resolved

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              epeter Emanuel Peter
              epeter Emanuel Peter
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                Updated: