d481e5f9b7
AMDGCN flavoured SPIR-V allows AMDGCN specific builtins, including those for scoped fences and some specific RMWs. However, at present we don't map syncscopes to their SPIR-V equivalents, but rather use the AMDGCN ones. This ends up pessimising the resulting code as system scope is used instead of device (agent) or subgroup (wavefront), so we correct the behaviour, to ensure that we do the right thing during reverse translation.
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, 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 websites. Here are some pointers:
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Information on Clang: http://clang.llvm.org/
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Building and using Clang: http://clang.llvm.org/get_started.html
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Clang Static Analyzer: http://clang-analyzer.llvm.org/
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Information on the LLVM project: http://llvm.org/
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If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
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If you find a bug in Clang, please file it in the LLVM bug tracker: