r198899 - Updating documentation for the __has_attribute changes landed in r198897.

[Aaron Ballman]

Author: aaronballman
Date: Thu Jan  9 17:11:13 2014
New Revision: 198899

URL: http://llvm.org/viewvc/llvm-project?rev=198899&view=rev
Log:
Updating documentation for the __has_attribute changes landed in r198897.

Modified:
    cfe/trunk/docs/LanguageExtensions.rst
    cfe/trunk/docs/ReleaseNotes.rst

Modified: cfe/trunk/docs/LanguageExtensions.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/LanguageExtensions.rst?rev=198899&r1=198898&r2=198899&view=diff
==============================================================================
--- cfe/trunk/docs/LanguageExtensions.rst (original)
+++ cfe/trunk/docs/LanguageExtensions.rst Thu Jan  9 17:11:13 2014
@@ -113,8 +113,8 @@ of ``cxx_rvalue_references``.
 -------------------
 
 This function-like macro takes a single identifier argument that is the name of
-an attribute.  It evaluates to 1 if the attribute is supported or 0 if not.  It
-can be used like this:
+an attribute.  It evaluates to 1 if the attribute is supported by the current
+compilation target, or 0 if not.  It can be used like this:
 
 .. code-block:: c++
 
@@ -134,6 +134,7 @@ The attribute name can also be specified
 (double underscore) to avoid interference from a macro with the same name.  For
 instance, ``__always_inline__`` can be used instead of ``always_inline``.
 
+
 Include File Checking Macros
 ============================
 

Modified: cfe/trunk/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ReleaseNotes.rst?rev=198899&r1=198898&r2=198899&view=diff
==============================================================================
--- cfe/trunk/docs/ReleaseNotes.rst (original)
+++ cfe/trunk/docs/ReleaseNotes.rst Thu Jan  9 17:11:13 2014
@@ -51,6 +51,11 @@ Major New Features
 GCC 4.7 changed the mingw ABI. Clang 3.4 and older use the GCC 4.6
 ABI. Clang 3.5 and newer use the GCC 4.7 abi.
 
+- The __has_attribute feature test is now target-aware. Older versions of Clang 
+would return true when the attribute spelling was known, regardless of whether 
+the attribute was available to the specific target. Clang now returns true only 
+when the attribute pertains to the current compilation target.
+
 
 Improvements to Clang's diagnostics
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^