
Summary: The default behavior for LTO on other targets does not specify the number of LTO partitions. Recent changes made this default to 8 on AMDGPU which had some issues with the `libc` project. The option to disable this is HIP only so I think for now we should restrict this just to HIP. I'm definitely on board with getting some more parallelism here, but I think it should probably be restricted to just offloading languages. The new driver goes through the `--target=amdgcn-amd-amdhsa` for its output, which means we'd need to forward the default somehow.
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: