[llvm-dev] ORC JIT Weekly #4

[Lang Hames via llvm-dev]

Hi All,

The initializer patch still hasn't landed, but there's an early preview up
at https://reviews.llvm.org/D74300 (thanks to Stefan for the suggestion).
Regression tests pass on Darwin, but unit tests and examples have not been
updated yet.

You can find a description of the patch on the review site, and I imagine
there will be plenty to discuss in it, but the headline change for most of
you will be updated LLJIT interface: The runConstructors and runDestructors
methods have been removed, and replaced with:

  Error initialize(JITDylib &JD)
  Error deinitialize(JITDylib &JD)

The exact behavior of these methods will depend on which
LLJIT::PlatformSupport class you set, but they're intended to behave like
dlopen / dlclose: They run the static constructors / destructors for all
modules added to the given JITDylib, and any JITDylibs that the given
JITDylib (transitively) links against.

You can check out the changes to lli.cpp to see a basic usage example, and
I intend to add another example to llvm/examples/LLJITExamples soon (either
before this lands, or shortly after).

Cheers,
Lang.
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