[llvm] r210819 - LangRef: clarify that global declarations can have section and alignment info.

[Bob Wilson]

Author: bwilson
Date: Thu Jun 12 15:40:33 2014
New Revision: 210819

URL: http://llvm.org/viewvc/llvm-project?rev=210819&view=rev
Log:
LangRef: clarify that global declarations can have section and alignment info.

I'm not sure what it means to set a section for a declaration in another
translation unit, but there are some tests in the tree that do it so it seems
to be legal now regardless.

Modified:
    llvm/trunk/docs/LangRef.rst

Modified: llvm/trunk/docs/LangRef.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.rst?rev=210819&r1=210818&r2=210819&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.rst (original)
+++ llvm/trunk/docs/LangRef.rst Thu Jun 12 15:40:33 2014
@@ -519,12 +519,14 @@ Global Variables
 Global variables define regions of memory allocated at compilation time
 instead of run-time.
 
-Global variables definitions must be initialized, may have an explicit section
-to be placed in, and may have an optional explicit alignment specified.
+Global variables definitions must be initialized.
 
 Global variables in other translation units can also be declared, in which
 case they don't have an initializer.
 
+Either global variable definitions or declarations may have an explicit section
+to be placed in and may have an optional explicit alignment specified.
+
 A variable may be defined as a global ``constant``, which indicates that
 the contents of the variable will **never** be modified (enabling better
 optimization, allowing the global data to be placed in the read-only
@@ -589,8 +591,8 @@ Syntax::
 
     [@<GlobalVarName> =] [Linkage] [Visibility] [DLLStorageClass] [ThreadLocal]
                          [unnamed_addr] [AddrSpace] [ExternallyInitialized]
-                         <global | constant> <Type> [<InitializerConstant>
-                         [, section "name"] [, align <Alignment>]]
+                         <global | constant> <Type> [<InitializerConstant>]
+                         [, section "name"] [, align <Alignment>]
 
 For example, the following defines a global in a numbered address space
 with an initializer, section, and alignment: