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  1. JDK
  2. JDK-8173196

[REDO] C2 does not optimize redundant memory operations with G1

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    Backports

      Description

        JDK-8087341 was backed out due to JDK-8172850. We should re-implement the enhancement.

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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-8225908 [REDO] C2 does not optimize redundant memory operations with G1

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8229219 C2 compilation fails with assert: Bad graph detected in build_loop_late

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8172850 Anti-dependency on membar causes crash in register allocator due to invalid instruction scheduling

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8173195 [BACKOUT] 8087341: C2 doesn't optimize redundant memory operations with G1

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

            Enhancement - null JDK-8229226 [REDO] C2 does not optimize redundant memory operations with G1

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

            Enhancement - null JDK-8087341 C2 doesn't optimize redundant memory operations with G1

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

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                roland Roland Westrelin
                thartmann Tobias Hartmann
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                  Updated:
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