This results in all of the (enabled)ĭocumentation targets being as part of a normal build. Doxgyen and Sphinx targets) asĭependencies of the default build targets. LLVM_BUILD_DOCS:BOOL Adds all enabled documentation targets (i.e. LLVM_BUILD_BENCHMARKS:BOOL Adds benchmarks to the list of default targets. This option isĪvailable only on some 64-bit Unix systems. LLVM_BUILD_32_BITS:BOOL Build 32-bit executables and libraries on 64-bit systems. Need revision info can disable this option to avoid re-linking most binariesĪfter a branch switch. The version info is provided by the LLVM_REVISION macro in ![]() LLVM_APPEND_VC_REV:BOOL Embed version control revision info (Git revision id). When OFF it is instead replaced with a guaranteed “trap”. Llvm_unreachable() is considered “undefined behavior” and optimized as (when assertions are disabled in general). LLVM_UNREACHABLE_OPTIMIZE:BOOL This flag controls the behavior of llvm_unreachable() in release build Is not ABI compatible with a version built without it. A version of LLVM built with ABI breaking checks (off) irrespective of whether normal ( NDEBUG-based) assertions areĮnabled or not. WITH_ASSERTS turns on ABI breaking checks in anĪssertion enabled build. Allowed values are WITH_ASSERTS (default), FORCE_ON andįORCE_OFF. LLVM_ABI_BREAKING_CHECKS:STRING Used to decide if LLVM should be built with ABI breaking checks or ![]() If you want to build LLVM as a shared library, you should use the For instance use lld withīUILD_SHARED_LIBS is only recommended for use by LLVM developers. LLVM_USE_LINKER:STRING Override the system’s default linker. Your native target with, for example, -DLLVM_TARGETS_TO_BUILD=X86. LLVM_TARGETS_TO_BUILD:STRING Control which targets are enabled. Into swap, permit only one link job per 15GB of RAM available on aģ2GB machine, specify -G Ninja -DLLVM_PARALLEL_LINK_JOBS=2. These options, when you use the Ninja generator, allow you CMAKE_JOBS:STRING Building the llvm toolchain can use a lot of resources, particularly CMAKE_INSTALL_PREFIX:PATH Path where LLVM will be installed when the “install” target is built. If you are using an IDE such as Visual Studio or Xcode, you should use ![]() To override the default from CMAKE_BUILD_TYPE. You can manually set LLVM_ENABLE_ASSERTIONS They typically slowĭown LLVM and Clang when enabled, but can be useful during development.
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