| commit | 5e24f2d83099bb557b1d39c6420787eeaf072a81 | [log] [tgz] |
|---|---|---|
| author | Argyrios Kyrtzidis <akyrtzi@gmail.com> | Thu Dec 13 21:38:23 2012 +0000 |
| committer | Argyrios Kyrtzidis <akyrtzi@gmail.com> | Thu Dec 13 21:38:23 2012 +0000 |
| tree | f5d84c95c272df59f339ee4d63878468359a5999 | |
| parent | de39d1752f1559060237f158e47af6527d5e4abe [diff] |
[PCH] Make the new PCH format (control block) backwards compatible and don't crash when loading a PCH with the older format. The introduction of the control block broke compatibility with PCHs from older versions. This patch allows loading (and rejecting) PCHs from an older version and allows newer PCHs to be rejected from older clang versions as well. rdar://12821386 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170150 91177308-0d34-0410-b5e6-96231b3b80d8