llvm

因为要用 openmp库，用 clang++ 编译 c++程序，出现了如下报错： clang++ xx.cpp -o xx -fopenmp /usr/local/Cellar/llvm/7.0.0/include/c++/v1/stdlib.h:94:15: fatal error: 'stdlib.h' file not found #include_next <stdlib.h> ^ 探究原因： include_next是在当前文件所在的路径后面的路径(一般有多个搜索路径)里搜索头文件。 报错说明 clang++的 include 搜索路径里 /usr/local/Cellar/llvm/7.0.0/include/c++/v1/ 后面的路径中不存在stdlib.h文件。 网上的解决方案 xcode-select install 没有用。 使用命令查看 clang++的 include 搜索路径（#include <...> search starts here: 后面）。 clang++ -E -x c++ - -v < /dev/null 可以看到这些 /usr/local/Cellar/llvm/7.0.0/include/c++/v1 /usr/include/c++/v1 /usr/local/include /usr/local/Cellar/llvm/7.0.0

I am trying to use lldb for c++ debugging and I want to halt if an exception is thrown, like gdb's catch throw , and I cannot find an equivalent in the lldb documentation. Jason Molenda In Xcode, you can set an Exception breakpoint (View > Navigators > Show Breakpoint Navigator, hit the + button in the bottom of the breakpoint list window to add a new breakpoint). If you're using command line lldb, put a breakpoint on __cxa_throw for C++ exception throws, objc_exception_throw for Objective-C exception throws. For all c++ exceptions: break set -E C++ . Use break set -E c++ to break on all

I have been looking at LLVM lately, and I find it to be quite an interesting architecture. However, looking through the tutorial and the reference material, I can't see any examples of how I might implement a string data type. There is a lot of documentation about integers, reals, and other number types, and even arrays, functions and structures, but AFAIK nothing about strings. Would I have to add a new data type to the backend? Is there a way to use built-in data types? Any insight would be appreciated. What is a string? An array of characters. What is a character? An integer. So while I'm

Is there a way to set the disassembly flavour like there is in GDB within LLDB so that it spits out Intel style assembly rather than AT&T style? set disassembly-flavor intel # GDB but for LLDB. No, not yet. Intel format disassembly is a feature I'm sure will be implemented eventually, but I don't think anyone is working on it today. UPDATE : the ability to select the assembly style was added to the top of tree sources (v. http://lldb.llvm.org ) March 1st, 2013 with the -F or --flavor option to disassemble or the target.x86-disassembly-flavor setting in your ~/.lldbinit file. This will be

1.下载 Eclipse IDE for C/C++ Developers ，安装 LLVM plugin for Eclipse CDT 。 2.下载 Clang 及 MinGW 。 3.配置环境变量及LLVM。 来源： oschina 链接： https://my.oschina.net/u/116768/blog/87331

I just read about the LLVM project and that it could be used to do static analysis on C/C++ codes using the analyzer Clang which the front end of LLVM. I wanted to know if it is possible to extract all the accesses to memory(variables, local as well as global) in the source code using LLVM. Is there any inbuilt library present in LLVM which I could use to extract this information. If not please suggest me how to write functions to do the same.(existing source code, reference, tutorial, example...) Of what i have thought, is I would first convert the source code into LLVM bc and then instrument

Update 2017-05-17. I no longer work for the company where this question originated, and do not have access to Delphi XEx. While I was there, the problem was solved by migrating to mixed FPC+GCC (Pascal+C), with NEON intrinsics for some routines where it made a difference. (FPC+GCC is highly recommended also because it enables using standard tools, particularly Valgrind.) If someone can demonstrate, with credible examples, how they are actually able to produce optimized ARM code from Delphi XEx, I'm happy to accept the answer. Embarcadero's Delphi compilers use an LLVM backend to produce native