ReleaseNotes: new Win EH instructions; by David Majnemer

[oota-llvm.git] / docs / ReleaseNotes.rst

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index c15d4f74e6c80b9bb1167fa9198ce9ae97a94255..73831f545390e2c2665a9faf0971367dacfbf266 100644 (file)
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -94,6 +94,25 @@ Non-comprehensive list of changes in this release
 
 * ORC now has a basic set of C bindings.
 
+* Optional support for linking clang and the LLVM tools with a single libLLVM
+  shared library. To enable this, pass ``-DLLVM_LINK_LLVM_DYLIB=ON`` to CMake.
+  See `Building LLVM with CMake`_ for more details.
+
+* The optimization to move the prologue and epilogue of functions in colder
+  code path (shrink-wrapping) is now enabled by default.
+
+* A new target-independent gcc-compatible emulated Thread Local Storage mode
+  is added.  When ``-femultated-tls`` flag is used, all accesses to TLS
+  variables are converted to calls to ``__emutls_get_address`` in the runtime
+  library.
+
+* MSVC compatible exception handling has been completely overhauled. New
+  instructions have been introduced to facilitate this:
+  `New exception handling instructions <ExceptionHandling.html#new-exception-handling-instructions>`_. 
+  While we have done our best to test this feature thoroughly, it would
+  not be completely surprising if there were a few lingering issues that
+  early adopters might bump into.
+
 .. NOTE
    For small 1-3 sentence descriptions, just add an entry at the end of
    this list. If your description won't fit comfortably in one bullet
@@ -223,9 +242,16 @@ Changes to the X86 Target
 * More efficient code for wide integer compares. (E.g. 64-bit compares
   on 32-bit targets.)
 
-* Tail call support for ``thiscall``, ``stdcall`, ``vectorcall``, and
+* Tail call support for ``thiscall``, ``stdcall``, ``vectorcall``, and
   ``fastcall`` functions.
 
+Changes to the Hexagon Target
+-----------------------------
+
+In addition to general code size and performance improvements, Hexagon target
+now has basic support for Hexagon V60 architecture and Hexagon Vector
+Extensions (HVX).
+
 Changes to the AVR Target
 -------------------------