701d726ef0
The NVVMReflect pass simply replaces calls to nvvm-reflect functions with the appropriate constant, either the architecture number, or nvvm-reflect-ftz, found in the module's metadata. The implementation is inefficient and does this by traversing through all instructions to find calls. The common case is that you never call nvvm-reflect, so this traversal is costly. This PR: - Updates the pass so that it finds the reflect functions by name, and then traverses through their uses to find the calls directly. - Adds a line (245) to make sure the dead nvvm-reflect definitions are erased. - Adds the ability to set reflect values via command line
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, 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 websites. 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:
-
If you find a bug in Clang, please file it in the LLVM bug tracker: