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  1. JDK
  2. JDK-8279886

C1: Turn off SelectivePhiFunctions in presence of irreducible loops

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 19
    • 19
    • hotspot
    • b13

    Description

      We should detect irreducible loops in BlockListBuilder::mark_loops() and turn off selective phi functions optimization if there are any.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8290423 [TIMEOUT] o.o.j.t.init.fields.volatiles.LongTest

          • 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-8277447 Hotspot C1 compiler crashes on Kotlin suspend fun with loop

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8289069 Very slow C1 arraycopy jcstress tests after JDK-8279886

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

          Commit Commit openjdk/jdk/b629782b

          Review Review openjdk/jdk/7636

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              iveresov Igor Veresov
              iveresov Igor Veresov
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                Created:
                Updated:
                Resolved: