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hipRTC compiles HIP device code at run time. Since the system may not have development tools installed, when a HIP program is compiled through hipRTC, there is no standard C or C++ header available. As such, the HIP headers should not depend on standard C or C++ headers when used with hipRTC. Basically when hipRTC is used, HIP headers only provides definitions of HIP device API functions. This is in line with what nvRTC does. This patch adds support of hipRTC to HIP headers in clang. Basically hipRTC defines a macro __HIPCC_RTC__ when compile HIP code at run time. When this macro is defined, HIP headers do not include standard C/C++ headers. Reviewed by: Artem Belevich Differential Revision: https://reviews.llvm.org/D100652
//===----------------------------------------------------------------------===// // 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/