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081afa3d04
Some options are only claimed in AddX86TargetArgs/etc (called by Clang::RenderTargetOptions). For assembler input, `Add*TargetArgs` is not called. If an option is unclaimed, it either leads to a -Wunused-command-line-argument warning or an error (if `TargetSpecific` is set) ``` // clang '-###' --target=x86_64 -mfpmath=sse -c a.s clang: error: unsupported option '-mfpmath=sse' for target 'x86_64' ``` For -mfpmath=, it's actually claimed by RenderFloatingPointOptions, which should be moved to AddARMTargetArgs/AddX86TargetArgs later (non-AArch32-non-x86 targets give a frontend error). This change is localized and similar to D153691, for release/17.x backporting. Fix https://github.com/llvm/llvm-project/issues/65023 Reviewed By: thesamesam Differential Revision: https://reviews.llvm.org/D159010 |
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| README.txt | ||
//===----------------------------------------------------------------------===// // 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 forums: https://discourse.llvm.org/c/clang/ If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/