forked from OSchip/llvm-project
7d057efddc
Normally math functions are forwarded to __nv_* counterparts provided by CUDA's libdevice bitcode. However, __nv_rint*()/__nv_nearbyint*() functions there have a bug -- they use round() which rounds *up* instead of rounding towards the nearest integer, so we end up with rint(2.5f) producing 3.0 instead of expected 2.0. The broken bitcode is not actually used by NVCC itself, which has both a work-around in CUDA headers and, in recent versions, uses correct implementations in NVCC's built-ins. This patch implements equivalent workaround and directs rint*/nearbyint* to __builtin_* variants that produce correct results. Differential Revision: https://reviews.llvm.org/D85236 |
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| 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/