Revert "Support for groups of attributes in #pragma clang attribute"

This reverts commit r345486.

Looks like it causes some old versions of GCC to crash, I'll see if I can
work around it and recommit...

llvm-svn: 345487

1 files changed, 7 insertions, 9 deletions

diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
index 506d2736891..894b7504fd2 100644
--- a/clang/docs/LanguageExtensions.rst
+++ b/clang/docs/LanguageExtensions.rst
@@ -2651,19 +2651,17 @@ Specifying an attribute for multiple declarations (#pragma clang attribute)
 
 The ``#pragma clang attribute`` directive can be used to apply an attribute to
 multiple declarations. The ``#pragma clang attribute push`` variation of the
-directive pushes a new "scope" of ``#pragma clang attribute`` that attributes
-can be added to. The ``#pragma clang attribute (...)`` variation adds an
-attribute to that scope, and the ``#pragma clang attribute pop`` variation pops
-the scope. You can also use ``#pragma clang attribute push (...)``, which is a
-shorthand for when you want to add one attribute to a new scope. Multiple push
-directives can be nested inside each other.
+directive pushes a new attribute to the attribute stack. The declarations that
+follow the pragma receive the attributes that are on the attribute stack, until
+the stack is cleared using a ``#pragma clang attribute pop`` directive. Multiple
+push directives can be nested inside each other.
 
 The attributes that are used in the ``#pragma clang attribute`` directives
 can be written using the GNU-style syntax:
 
 .. code-block:: c++
 
-  #pragma clang attribute push (__attribute__((annotate("custom"))), apply_to = function)
+  #pragma clang attribute push(__attribute__((annotate("custom"))), apply_to = function)
 
   void function(); // The function now has the annotate("custom") attribute
 
@@ -2673,7 +2671,7 @@ The attributes can also be written using the C++11 style syntax:
 
 .. code-block:: c++
 
-  #pragma clang attribute push ([[noreturn]], apply_to = function)
+  #pragma clang attribute push([[noreturn]], apply_to = function)
 
   void function(); // The function now has the [[noreturn]] attribute
 
@@ -2683,7 +2681,7 @@ The ``__declspec`` style syntax is also supported:
 
 .. code-block:: c++
 
-  #pragma clang attribute push (__declspec(dllexport), apply_to = function)
+  #pragma clang attribute push(__declspec(dllexport), apply_to = function)
 
   void function(); // The function now has the __declspec(dllexport) attribute