[llvm] r192796 - Add more documentation about the TargetStreamer interface.

[Rafael Espindola]

Author: rafael
Date: Wed Oct 16 09:54:39 2013
New Revision: 192796

URL: http://llvm.org/viewvc/llvm-project?rev=192796&view=rev
Log:
Add more documentation about the TargetStreamer interface.

Modified:
    llvm/trunk/docs/CodeGenerator.rst

Modified: llvm/trunk/docs/CodeGenerator.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CodeGenerator.rst?rev=192796&r1=192795&r2=192796&view=diff
==============================================================================
--- llvm/trunk/docs/CodeGenerator.rst (original)
+++ llvm/trunk/docs/CodeGenerator.rst Wed Oct 16 09:54:39 2013
@@ -643,6 +643,11 @@ inherit from it, a target object streame
 asm streamer just prints it (``emitFnStart -> .fnstrart``), and the object
 streamer implement the assembler logic for it.
 
+To make llvm use these classes, the target initialization must call
+TargetRegistry::RegisterAsmStreamer and TargetRegistry::RegisterMCObjectStreamer
+passing callbacks that allocate the corresponding target streamer and pass it
+to createAsmStreamer or to the appropriate object streamer constructor.
+
 The ``MCContext`` class
 -----------------------