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  1. JDK
  2. JDK-8332765

Test compiler/loopopts/superword/TestAlignVectorFuzzer.java still times out after JDK-8327978

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      This is the same failure as reported in JDK-8323641 and JDK-8327978.

      I suspect that it was a regression of JDK-8324517: CastII nodes took up 90%+ of compile time, and compile time was extremely high 100sec+.
      AVX512 seems required to reach the required unrolling factor.
      Now this change was backed-out, and may be re-introduced in JDK-8332827.

      Test: compiler/loopopts/superword/TestAlignVectorFuzzer.java#VerifyAlignVector-NoTieredCompilation-Xbatch

      ITERATION 2 of 5. Test testDUBCFH, time allowance: 110626, until timeout: 418626
      62649 403 b compiler.loopopts.superword.TestAlignVectorFuzzer::testDUBCFH (1237 bytes)
      Timeout signalled after 480 seconds
      TEST PASSED: hit maximal time allownance during iteration 2, time allowance: -383253, until timeout: -75253

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          duplicates

          Sub-task - The sub-task of the issue JDK-8332829 [BACKOUT] C2: crash in compiled code because of dependency on removed range check CastIIs

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8327978 C2 SuperWord: Fix compilation time regression in dependency graph traversal after JDK-8325651

          • 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-8332537 C2: High memory usage reported for compiler/loopopts/superword/TestAlignVectorFuzzer.java

          • 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-8324517 C2: crash in compiled code because of dependency on removed range check CastIIs

          • P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8323641 Test compiler/loopopts/superword/TestAlignVectorFuzzer.java timed out

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

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              epeter Emanuel Peter
              dholmes David Holmes
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