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17cfd2e025
When a user uses a mismatched clang + llvm-profdata, they didn't get a very informative error message. It would just say "unsupported version". As a result, users are often confused as to what they are supposed to do and tend to assume that it's a bug in the profiling runtime. This patch improves the error message by: - Adding a new class of error (`raw_profile_version_mismatch`) to make it clear that, specifically, the *raw profile* version is unsupported because of a tool mismatch. - Adding an error message that tells the user which raw profile version was encountered, which version was expected, and instructs them to align their tool versions. To support this, this patch also updates `InstrProfError::take` to also propagate the optional error message. Differential Revision: https://reviews.llvm.org/D149361 |
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| lib | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CodeOwners.rst | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
| ModuleInfo.txt | ||
| NOTES.txt | ||
| 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/