From 3aad0ef158c8dc80f86eacb76f0fc61b31b5ff86 Mon Sep 17 00:00:00 2001 From: Swaroop Sridhar Date: Thu, 21 May 2015 00:50:10 +0000 Subject: [PATCH] Document the CoreCLR GC Strategy Add notead about the CoreCLR GC Strategy to the Garbage Collection document. llvm-svn: 237869 --- docs/GarbageCollection.rst | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/docs/GarbageCollection.rst b/docs/GarbageCollection.rst index a1557fcdb09..56b4b9f8f95 100644 --- a/docs/GarbageCollection.rst +++ b/docs/GarbageCollection.rst @@ -494,6 +494,7 @@ a ``gcroot`` strategy. 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 @@ The stack map format generated by this GC strategy can be found in the `. 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 `__ runtime. + +Support for this GC strategy is a work in progress. This strategy will +differ from +:ref:`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 ====================