[llvm] r255534 - docs: Correct wording in LangRef relating to available_externally linkage.

Peter Collingbourne via llvm-commits llvm-commits at lists.llvm.org
Mon Dec 14 11:22:38 PST 2015


Author: pcc
Date: Mon Dec 14 13:22:37 2015
New Revision: 255534

URL: http://llvm.org/viewvc/llvm-project?rev=255534&view=rev
Log:
docs: Correct wording in LangRef relating to available_externally linkage.

Differential Revision: http://reviews.llvm.org/D15343

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=255534&r1=255533&r2=255534&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.rst (original)
+++ llvm/trunk/docs/LangRef.rst Mon Dec 14 13:22:37 2015
@@ -204,14 +204,15 @@ linkage:
     (``STB_LOCAL`` in the case of ELF) in the object file. This
     corresponds to the notion of the '``static``' keyword in C.
 ``available_externally``
-    Globals with "``available_externally``" linkage are never emitted
-    into the object file corresponding to the LLVM module. They exist to
-    allow inlining and other optimizations to take place given knowledge
-    of the definition of the global, which is known to be somewhere
-    outside the module. Globals with ``available_externally`` linkage
-    are allowed to be discarded at will, and are otherwise the same as
-    ``linkonce_odr``. This linkage type is only allowed on definitions,
-    not declarations.
+    Globals with "``available_externally``" linkage are never emitted into
+    the object file corresponding to the LLVM module. From the linker's
+    perspective, an ``available_externally`` global is equivalent to
+    an external declaration. They exist to allow inlining and other
+    optimizations to take place given knowledge of the definition of the
+    global, which is known to be somewhere outside the module. Globals
+    with ``available_externally`` linkage are allowed to be discarded at
+    will, and allow inlining and other optimizations. This linkage type is
+    only allowed on definitions, not declarations.
 ``linkonce``
     Globals with "``linkonce``" linkage are merged with other globals of
     the same name when linkage occurs. This can be used to implement




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