Mention address space related changes in release notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194904 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index f67ebf0e4c7a06d5db4cec16b65a956de7163fda..a64bc107aaadd46435bb4dc1e88baad0fe62b6a3 100644 (file)
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -83,6 +83,13 @@ Non-comprehensive list of changes in this release
 * FileCheck now allows specifing -check-prefix multiple times. This
   helps reduce duplicate check lines when using multiple RUN lines.
 
+* The bitcast instruction no longer allows casting between pointers
+   with different address spaces. To achieve this, use the new
+   addrspacecast instruction.
+
+* Different sized pointers for different address spaces should now
+  generally work. This is primarily useful for GPU targets.
+
 * ... next change ...
 
 .. NOTE