| commit | 4708b3dde86b06f40927ae9cf30a2de83949a8f2 | [log] [tgz] |
|---|---|---|
| author | Jordan Rose <jordan_rose@apple.com> | Sat Mar 23 01:21:33 2013 +0000 |
| committer | Jordan Rose <jordan_rose@apple.com> | Sat Mar 23 01:21:33 2013 +0000 |
| tree | e26d5cafc1dd4c77dc3273653db8b0cbe60faa50 | |
| parent | a339cd66be6202c6e86916f52a347d0289bf2eea [diff] |
[analyzer] Teach constraint managers about unsigned comparisons. In C, comparisons between signed and unsigned numbers are always done in unsigned-space. Thus, we should know that "i >= 0U" is always true, even if 'i' is signed. Similarly, "u >= 0" is also always true, even though '0' is signed. Part of <rdar://problem/13239003> (false positives related to std::vector) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177806 91177308-0d34-0410-b5e6-96231b3b80d8