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  1. JDK
  2. JDK-8324688

C2: Disable ReduceAllocationMerges by default

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      Description

        Due to several recent bug reports after JDK-8287061 (latest one JDK-8322854), we've decided it's best to disable ReduceAllocationMerges by default for JDK 22 which disables the features of JDK-8287061.

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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-8325408 C2: Disable ReduceAllocationMerges by default

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8322854 Incorrect rematerialization of scalar replaced objects in C2

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Enhancement - null JDK-8287061 Support for rematerializing scalar replaced objects participating in allocation merges

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

            Commit Commit openjdk/jdk22/b7f38fc5

            Review Review openjdk/jdk22/97

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                chagedorn Christian Hagedorn
                chagedorn Christian Hagedorn
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                  Updated:
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