forked from OSchip/llvm-project
9766fed9c1
The re-apply includes fixes to clang tests that were missed in the original commit. Original message: Prior to this patch we would only set to undef the unused arguments of the external functions. The rationale was that unused arguments of internal functions wouldn't need to be turned into undef arguments because they should have been simply eliminated by the time we reach that code. This is actually not true because there are plenty of cases where we can't remove unused arguments. For instance, if the internal function is used in an indirect call, it may not be possible to change the function signature. Yet, for statically known call-sites we would still like to mark the unused arguments as undef. This patch enables the "set undef arguments" optimization on internal functions when we encounter cases where internal functions cannot be optimized. I.e., whenever an internal function is marked "live". Differential Revision: https://reviews.llvm.org/D124699 |
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| 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 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/