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LLVM
来自开放百科 - 灰狐
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LLVM | LLVM | ||
| + | [[文件:LLVM-New-Logo.png|right]] | ||
[[文件:LLVM-Primer.png|right]] | [[文件:LLVM-Primer.png|right]] | ||
[[image:llvm-c-cpp-compiler.png|right]] | [[image:llvm-c-cpp-compiler.png|right]] | ||
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==简介== | ==简介== | ||
LLVM（Low Level Virtual Machine）底层虚拟机，是一个开源(BSD)编译器的基础设施，使用C++编写。它是为了任意一种编程语言写成的程序，利用虚拟技术，创造出编译时，链结时，运行时以及“闲置时”的最佳化。它最早是以 C/C++为处理对象，目前它支持了包括[[Objective-C]], [[Fortran]], [[Ada]], [[Haskell]], Java bytecode, [[Python]], [[Ruby]], [[ActionScript]], [[GLSL]]以及其他语言。 | LLVM（Low Level Virtual Machine）底层虚拟机，是一个开源(BSD)编译器的基础设施，使用C++编写。它是为了任意一种编程语言写成的程序，利用虚拟技术，创造出编译时，链结时，运行时以及“闲置时”的最佳化。它最早是以 C/C++为处理对象，目前它支持了包括[[Objective-C]], [[Fortran]], [[Ada]], [[Haskell]], Java bytecode, [[Python]], [[Ruby]], [[ActionScript]], [[GLSL]]以及其他语言。 | ||
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| + | LLVM 采用 University of Illinois/NCSA Open Source License, or UIUC 许可证，基于MIT/X11 license and the 3-clause BSD license，兼容GPL。 | ||
[[文件:llvm-three-phase-design.png]] | [[文件:llvm-three-phase-design.png]] | ||
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==新闻== | ==新闻== | ||
*[https://www.oschina.net/news/95790/rafael-leacing-llvm 因不满社区变化，LLVM 资深开发者发长邮件宣布退出] (2018.05) | *[https://www.oschina.net/news/95790/rafael-leacing-llvm 因不满社区变化，LLVM 资深开发者发长邮件宣布退出] (2018.05) | ||
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==版本== | ==版本== | ||
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* APIs and debugging tools to simplify rapid development of LLVM components. | * APIs and debugging tools to simplify rapid development of LLVM components. | ||
| − | == | + | ==指南== |
===Debian=== | ===Debian=== | ||
[https://apt.llvm.org/ LLVM Debian/Ubuntu nightly packages] | [https://apt.llvm.org/ LLVM Debian/Ubuntu nightly packages] | ||
2022年1月19日 (三) 09:37的版本
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您可以在Wikipedia上了解到此条目的英文信息 LLVM Thanks, Wikipedia. |
LLVM
目录 |
简介
LLVM（Low Level Virtual Machine）底层虚拟机，是一个开源(BSD)编译器的基础设施，使用C++编写。它是为了任意一种编程语言写成的程序，利用虚拟技术，创造出编译时，链结时，运行时以及“闲置时”的最佳化。它最早是以 C/C++为处理对象，目前它支持了包括Objective-C, Fortran, Ada, Haskell, Java bytecode, Python, Ruby, ActionScript, GLSL以及其他语言。
LLVM 采用 University of Illinois/NCSA Open Source License, or UIUC 许可证，基于MIT/X11 license and the 3-clause BSD license，兼容GPL。
新闻
- 因不满社区变化，LLVM 资深开发者发长邮件宣布退出 (2018.05)
版本
- 13
- 12
- 11
功能
The LLVM compiler system for C and C++ includes the following:
- Front-ends for C, C++, Objective-C, Fortran, etc based on the GCC 4.2 parsers. They support the ANSI-standard C and C++ languages to the same degree that GCC supports them. Additionally, many GCC extensions are supported.
- A stable implementation of the LLVM instruction set, which serves as both the online and offline code representation, together with assembly (ASCII) and bytecode (binary) readers and writers, and a verifier.
- A powerful pass-management system that automatically sequences passes (including analysis, transformation, and code-generation passes) based on their dependences, and pipelines them for efficiency.
- A wide range of global scalar optimizations.
- A link-time interprocedural optimization framework with a rich set of analyses and transformations, including sophisticated whole-program pointer analysis, call graph construction, and support for profile-guided optimizations.
- An easily retargettable code generator, which currently supports X86, X86-64, PowerPC, PowerPC-64, ARM, Thumb, SPARC, Alpha, and IA-64.
- A Just-In-Time (JIT) code generation system, which currently supports X86, X86-64, PowerPC and PowerPC-64.
- Support for generating DWARF debugging information.
- A C back-end useful for testing and for generating native code on targets other than the ones listed above.
- A profiling system similar to gprof.
- A test framework with a number of benchmark codes and applications.
- APIs and debugging tools to simplify rapid development of LLVM components.
指南
Debian
LLVM Debian/Ubuntu nightly packages
安装完，符号链接下。
sudo ln -s /usr/bin/clang-13 /usr/bin/clang sudo ln -s /usr/bin/clang++-13 /usr/bin/clang++ clang --version
macOS
port search llvm sudo port install llvm-3.3
项目
- LLVM GitHub Topics
- Haskell LLVM JIT Compiler Tutorial Implementing a JIT Compiled Language with Haskell and LLVM
- Cilk Plus/LLVM
- LLILC is an LLVM based MSIL Compiler
- LLVM IR入门指南
- Emscripten An LLVM-to-WebAssembly Compiler
- DragonEgg Using LLVM as a GCC backend
文档
- LLVM and Clang: Next Generation Compiler Technology
- Embedded FreeBSD on a five-core RISC-V processor using LLVM
- LLVM 入门教程
图集
DragonEgg
链接
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