| commit | 456ca048af35163b9f52187e92a23ee0a9f059e8 | [log] [tgz] |
|---|---|---|
| author | Stephen Lin <stephenwlin@gmail.com> | Sat Apr 20 05:14:40 2013 +0000 |
| committer | Stephen Lin <stephenwlin@gmail.com> | Sat Apr 20 05:14:40 2013 +0000 |
| tree | f7b4d4711424b927d5b323a9e4ef4d97742beeb4 | |
| parent | 5c34e08b9fff9d4df2421e4f41ff15b85f638dd1 [diff] |
Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179925 91177308-0d34-0410-b5e6-96231b3b80d8