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| -rw-r--r-- | docs/ReleaseNotes.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index a8cfde5e667..4bc83e9139e 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -382,6 +382,24 @@ The PreserveSource linker mode was removed It was fairly broken and was removed. +Garbage Collection +------------------ +A new experimental mechanism for describing a garbage collection safepoint was +added to LLVM. The new mechanism was not complete at the point this release +was branched so it is recommended that anyone interested in using this +mechanism track the ongoing development work on tip of tree. The hope is that +these intrinsics will be ready for general use by 3.7. Documentation can be +found `here <http://llvm.org/docs/Statepoints.html>`_. + +The existing gc.root implementation is still supported and as fully featured +as it ever was. However, two features from GCStrategy will likely be removed +in the 3.7 release (performCustomLowering and findCustomSafePoints). If you +have a use case for either, please mention it on llvm-dev so that it can be +considered for future development. + +We are expecting to migrate away from gc.root in the 3.8 time frame, +but both mechanism will be supported in 3.7. + Changes to the ARM Backend -------------------------- |