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  1. JDK
  2. JDK-8155781

C2: opaque unsafe access triggers an assert

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Details

    • Bug
    • Resolution: Fixed
    • P1
    • 9
    • 9
    • hotspot
    • None
    • b129
    • Verified

    Backports

      Description

        The following code hits an assert during compilation:
            static int test(Object o) {
                return UNSAFE.getInt(o, F_OFFSET);
            }

        # Internal Error (/Users/vlivanov/ws/jdk/hs-comp9/hotspot/src/share/vm/opto/library_call.cpp:2426), pid=12063, tid=23043
        # assert(alias_type->adr_type() == TypeRawPtr::BOTTOM || alias_type->adr_type() == TypeOopPtr::BOTTOM || alias_type->basic_type() != T_ILLEGAL) failed: field, array element or unknown

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            backported by

            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-8183645 C2: opaque unsafe access triggers an assert

            • P1 - Blocks development and/or testing work, production could not run.
            • 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-8192210 C2: opaque unsafe access triggers an assert

            • P1 - Blocks development and/or testing work, production could not run.
            • 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-8168522 C2: opaque unsafe access triggers an assert

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8162351 JDK9 client nightly Mac build failure

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-8153356 NullCheckDroppingsTest.java fails with "assert(alias_type->adr_type()..."

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8162101 C2: Handle "wide" aliases for unsafe accesses

            • P3 - Major loss of function.
            • Resolved

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                vlivanov Vladimir Ivanov
                vlivanov Vladimir Ivanov
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                Dates

                  Created:
                  Updated:
                  Resolved: