tree 43c06bb0a10f4cce71fbd57c3b2d8d97e7acae20
parent 5077c3876beeaed32280af88244e8050078619a8
author Douglas Gregor <dgregor@apple.com> 1273906005 +0000
committer Douglas Gregor <dgregor@apple.com> 1273906005 +0000

Implement a simple form of the C++ named return value optimization for
return statements. We perform NRVO only when all of the return
statements in the function return the same variable. Fixes some link
failures in Boost.Interprocess (which is relying on NRVO), and
probably improves performance for some C++ applications.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103867 91177308-0d34-0410-b5e6-96231b3b80d8