forked from OSchip/llvm-project
d7969012e4
An impilt used of C++ module without prebuild path may cause crash. For example: ``` // ./dir1/C.cppm export module C; // ./dir2/B.cppm export module B; import C; // ./A.cpp import B; import C; ``` When we compile A.cpp without the prebuild path of C.pcm, the compiler will crash. ``` clang++ -std=c++20 --precompile -c ./dir1/C.cppm -o ./dir1/C.pcm clang++ -std=c++20 --precompile -fprebuilt-module-path=./dir2 -c ./dir2/B.cppm -o ./dir2/B.pcm clang++ -std=c++20 -fprebuilt-module-path=./dir2 A.cpp ``` The prebuilt path of module C is cached when import module B, and in the function HeaderSearch::getCachedModuleFileName, the compiler try to get the filename by modulemap without check if modulemap exists, and there is no modulemap in C++ module. Reviewed By: ChuanqiXu Differential review: https://reviews.llvm.org/D119426 |
||
|---|---|---|
| .. | ||
| INPUTS | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
| ModuleInfo.txt | ||
| NOTES.txt | ||
| README.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 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/