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  1. JDK
  2. JDK-8253923

C2 doesn't always run loop opts for compilations that include loops

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        I noticed that c2 wouldn't always run loop opts when the compilation include loops. Compile::has_loops() is what controls whether loop opts are executed. It's initially false and then set to true as parsing finds new loops. Parsing doesn't seem to always update the flag when it should.

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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-8263171 C2 doesn't always run loop opts for compilations that include loops

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8263241 C2 doesn't always run loop opts for compilations that include loops

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8262067 SuperWord loop optimization lost after method inlining

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8257574 C2: "failed: parsing found no loops but there are some" assert failure

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8294217 Assertion failure: parsing found no loops but there are some

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

            Commit Commit openjdk/jdk/a6c23b77

            Review Review openjdk/jdk/478

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                roland Roland Westrelin
                roland Roland Westrelin
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