To enforce this language version, we check the most LLVM is written using the subset of C++ documented in coding Host C++ toolchain, both compiler and standard library, in order to build LLVM. The C++ language and library reasonably closely. We also attempt to follow improvements and developments in LLVM is very demanding of the host C++ compiler, and as such tends to exposeīugs in the compiler. Host C++ Toolchain, both Compiler and Standard Library ¶ zip - zip command for distribution generation.unzip - unzip command for distribution checking.tar - tape archive for distribution generation.sh - Bourne shell for make build scripts.sed - stream editor for transforming output.rm - remove (delete) files and directories.ranlib - symbol table builder for archive libraries.gunzip - gunzip command for distribution checking.gzip - gzip command for distribution generation.grep - regular expression search utility.find - find files/dirs in a file system.egrep - extended regular expression search utility.bunzip2 - bunzip2 command for distribution checking.bzip2 - bzip2 command for distribution generation.Optional, you can use any other build tool supported by CMake.Īdditionally, your compilation host is expected to have the usual plethora of.Optional, adds compression / uncompression capabilities to selected LLVM.Only needed if you want to run the automated test suite in the.Only the C and C++ languages are needed so there’s no need to build the.Should work as well, although the generated native code may not work on your If compilation is successful, the LLVM utilities should be able toĪssemble, disassemble, analyze, and optimize LLVM bitcode. The LLVM suite may compile on other platforms, but it is not guaranteed to do The Release build requires considerably less space. If you are space-constrained, you can build only selected tools or only Libraries are statically linked into multiple tools). Is so large because of all the debugging information and the fact that the The exact space requirements will vary by system. A full build of LLVM and Clang will need aroundġ5-20 GB of disk space. Note that Debug builds require a lot of time and disk space. To use LLVM modules on Win32-based system, you may configure LLVM.Code generation supported for 32-bit ABI only.Code generation supported for Pentium processors and up.Go to Directory Layout to learn about the If you get an “internal compiler error (ICE)” or test failures, seeĬonsult the Getting Started with LLVM section for detailed information onĬonfiguring and compiling LLVM. Option -j NN, where NN is the number of parallel jobs, e.g. That’s done by default in Ninja for make, use the LLVM sub-projects generate their own check- target.
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