//===----------------------------------------------------------------------===// // C Language Family Front-end //===----------------------------------------------------------------------===// Welcome to Clang. This is a compiler front-end for the C family of languages (C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM compiler infrastructure project. Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer. If you're interested in more (including how to build Clang) it is best to read the relevant web sites. Here are some pointers: Information on Clang: http://clang.llvm.org/ Building and using Clang: http://clang.llvm.org/get_started.html Clang Static Analyzer: http://clang-analyzer.llvm.org/ Information on the LLVM project: http://llvm.org/ If you have questions or comments about Clang, a great place to discuss them is on the Clang development mailing list: http://lists.llvm.org/mailman/listinfo/cfe-dev If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/
Vedant Kumar
authored
In r309007, I made -fsanitize=null a hard prerequisite for -fsanitize=vptr. I did not see the need for the two checks to have separate null checking logic for the same pointer. I expected the two checks to either always be enabled together, or to be mutually compatible. In the mailing list discussion re: r309007 it became clear that that isn't the case. If a codebase is -fsanitize=vptr clean but not -fsanitize=null clean, it's useful to have -fsanitize=vptr emit its own null check. That's what this patch does: with it, -fsanitize=vptr can be used without -fsanitize=null. Differential Revision: https://reviews.llvm.org/D36112 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@309846 91177308-0d34-0410-b5e6-96231b3b80d8
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