Update aosp/master LLVM for rebase to r239765
Bug: 20140355: This rebase pulls the upstream fix for the spurious
warnings mentioned in the bug.
Change-Id: I7fd24253c50f4d48d900875dcf43ce3f1721a3da
diff --git a/docs/GarbageCollection.rst b/docs/GarbageCollection.rst
index a1557fc..56b4b9f 100644
--- a/docs/GarbageCollection.rst
+++ b/docs/GarbageCollection.rst
@@ -494,6 +494,7 @@
As there names imply, the binary format produced is intended to model that
used by the Erlang and OCaml compilers respectively.
+.. _statepoint_example_gc:
The Statepoint Example GC
-------------------------
@@ -517,6 +518,28 @@
<statepoint-stackmap-format>`. This format is intended to be the standard
format supported by LLVM going forward.
+The CoreCLR GC
+-------------------------
+
+.. code-block:: c++
+
+ F.setGC("coreclr");
+
+This GC leverages the ``gc.statepoint`` mechanism to support the
+`CoreCLR <https://github.com/dotnet/coreclr>`__ runtime.
+
+Support for this GC strategy is a work in progress. This strategy will
+differ from
+:ref:`statepoint-example GC<statepoint_example_gc>` strategy in
+certain aspects like:
+
+* Base-pointers of interior pointers are not explicitly
+ tracked and reported.
+
+* A different format is used for encoding stack maps.
+
+* Safe-point polls are only needed before loop-back edges
+ and before tail-calls (not needed at function-entry).
Custom GC Strategies
====================
