| commit | d86c477fb5d3fc34864afecbbb5443da9355e8fb | [log] [tgz] |
|---|---|---|
| author | Douglas Gregor <dgregor@apple.com> | Sat May 15 06:46:45 2010 +0000 |
| committer | Douglas Gregor <dgregor@apple.com> | Sat May 15 06:46:45 2010 +0000 |
| tree | 43c06bb0a10f4cce71fbd57c3b2d8d97e7acae20 | |
| parent | 5077c3876beeaed32280af88244e8050078619a8 [diff] |
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