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  1. JDK
  2. JDK-8328822

C2: "negative trip count?" assert failure in profile predicate code

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    • b19

    Backports

      Description

        $ java -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:+PrintCompilation -XX:CompileOnly=TestLongCLMinJintStride::test2 XX:CompileCommand=quiet TestLongCLMinJintStride
        ...
        # Internal Error (/home/roland/jdk-jdk/src/hotspot/share/opto/loopPredicate.cpp:1390), pid=3263637, tid=3263651
        # assert(!follow_branches || loop_trip_cnt >= 0) failed: negative trip count?

        With attached test case.

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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8331561 C2: "negative trip count?" assert failure in profile predicate code

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8331797 C2: "negative trip count?" assert failure in profile predicate code

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8333947 C2: "negative trip count?" assert failure in profile predicate code

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

            Enhancement - null JDK-8203197 C2: consider all paths in loop body for loop predication

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

            Commit Commit openjdk/jdk21u-dev/87d5da4f

            Commit Commit openjdk/jdk22u/e77a0478

            Commit Commit openjdk/jdk/2ceeb6c0

            Review Review openjdk/jdk21u-dev/497

            Review Review openjdk/jdk22u/179

            Review Review openjdk/jdk/18707

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                roland Roland Westrelin
                roland Roland Westrelin
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                  Updated:
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