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90dfd05919
Added the option `-altivec-src-compat=[mixed,gcc,xl]`. The default at this time is `mixed`. The default behavior for clang is for all vector compares to return a scalar unless the vectors being compared are vector bool or vector pixel. In that case the compare returns a vector. With the gcc case all vector compares return vectors and in the xl case all vector compares return scalars. This patch does not change the default behavior of clang. This option will be used in future patches to implement behaviour compatibility for the vector bool/pixel types. Reviewed By: bmahjour Differential Revision: https://reviews.llvm.org/D103615
//===----------------------------------------------------------------------===// // 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/