Release note for DWARF v5 support

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_70@338892 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 1e45a13ef916133b3cc04080555ab010fdabc23c..01702023c5403a7e271acde47765f3d5e153c032 100644 (file)
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -50,6 +50,12 @@ Major New Features
   was added. Please refer to the :ref:`release-notes-ubsan` section of the
   release notes for the details.
 
+- Preliminary/experimental support for DWARF v5 debugging information. If you
+  compile with ``-gdwarf-5 -O0`` you should get fully conforming DWARF v5
+  information, including the new .debug_names accelerator table. Type units
+  and split DWARF are known not to conform, and higher optimization levels
+  will likely get a mix of v4 and v5 formats.
+  
 Improvements to Clang's diagnostics
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^