[llvm-commits] [llvm] r111681 - in /llvm/trunk: include/llvm/Analysis/DebugInfo.h include/llvm/Metadata.h lib/Analysis/DebugInfo.cpp lib/AsmParser/LLParser.cpp lib/Bitcode/Reader/BitcodeReader.cpp lib/VMCore/Metadata.cpp

[Chris Lattner]

On Aug 20, 2010, at 3:02 PM, Dan Gohman wrote:

> Author: djg
> Date: Fri Aug 20 17:02:26 2010
> New Revision: 111681
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=111681&view=rev
> Log:
> Introduce a new temporary MDNode concept. Temporary MDNodes are
> not part of the IR, are not uniqued, and may be safely RAUW'd.
> This replaces a variety of alternate mechanisms for achieving
> the same effect.

Very nice!  Is it possible to make RAUW assert that the thing being replaced with is not a uniqued MDNode now?

-Chris