[X10-issues] [jira] Updated: (XTENLANG-59) language support for guaranteed inlining

[David G. (JIRA) <ji...@co...>]

     [ http://jira.codehaus.org/browse/XTENLANG-59?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Grove updated XTENLANG-59:
--------------------------------

    Fix Version/s:     (was: X10 1.7.1 - JVM Hosted)
                    X10 1.7.2 - JVM Hosted

> language support for guaranteed inlining
> ----------------------------------------
>
>                 Key: XTENLANG-59
>                 URL: http://jira.codehaus.org/browse/XTENLANG-59
>             Project: X10
>          Issue Type: New Feature
>          Components: X10 Compiler
>    Affects Versions: X10 1.7 - JVM hosted
>            Reporter: Bruce Lucas
>            Assignee: Nate Nystrom
>             Fix For:  X10 1.7.2 - JVM Hosted
>
>
> As we have experienced, and as our customers have told us, it can be difficult to achieve desired inlining of methods in practice if you depending on existing back-ends to do the inlining.
> This is exacerbated by cumbersome and finicky mechanims, involving final classes, methods etc. and obtuse java command line arguments, to help encourage the JIT to inline.
> Customers have expressed this as a requirement for macro preprocessing, but of course macros have semantic issues - macro invocations look much like function calls, but have very different semantics.
> So instead would it be possible for the X10 compiler to do semantics-preserving inlining of methods and functions at the source code level? A method or function would be source-code inlinable if it's source code was available at compile time - either because it was defined in the same compilation unit, or because we provided a facility for the compiler to store source code (or equivalent) in the compiler output.

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