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llvm-capstone/compiler-rt/CMakeLists.txt
Petr Hosek 2d46cfedf2 [CMake] Don't use CLANG_DEFAULT_* values 
These are not necessarily correct, just because Clang is configured
to use libc++ or compiler-rt as defaults doesn't mean that the host
compiler uses these as defaults as well. A more correct solution
would be to test the host compiler to check what the default actually
is as attempted in D46857.

Part of PR-38025.

Differential Revision: https://reviews.llvm.org/D49272

llvm-svn: 337033
2018-07-13 19:16:30 +00:00

421 lines
16 KiB
CMake
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# CMake build for CompilerRT.
#
# An important constraint of the build is that it only produces libraries
# based on the ability of the host toolchain to target various platforms.
cmake_minimum_required(VERSION 3.4.3)
# Check if compiler-rt is built as a standalone project.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR COMPILER_RT_STANDALONE_BUILD)
project(CompilerRT C CXX ASM)
set(COMPILER_RT_STANDALONE_BUILD TRUE)
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
endif()
# Add path for custom compiler-rt modules.
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
)
if(CMAKE_CONFIGURATION_TYPES)
set(CMAKE_CFG_RESOLVED_INTDIR "${CMAKE_CFG_INTDIR}/")
else()
set(CMAKE_CFG_RESOLVED_INTDIR "")
endif()
include(base-config-ix)
include(CompilerRTUtils)
option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
option(COMPILER_RT_BUILD_XRAY "Build xray" ON)
mark_as_advanced(COMPILER_RT_BUILD_XRAY)
option(COMPILER_RT_BUILD_LIBFUZZER "Build libFuzzer" ON)
mark_as_advanced(COMPILER_RT_BUILD_LIBFUZZER)
option(COMPILER_RT_BUILD_PROFILE "Build profile runtime" ON)
mark_as_advanced(COMPILER_RT_BUILD_PROFILE)
option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF)
mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT)
set(COMPILER_RT_ASAN_SHADOW_SCALE ""
CACHE STRING "Override the shadow scale to be used in ASan runtime")
if (NOT COMPILER_RT_ASAN_SHADOW_SCALE STREQUAL "")
# Check that the shadow scale value is valid.
if (NOT (COMPILER_RT_ASAN_SHADOW_SCALE GREATER -1 AND
COMPILER_RT_ASAN_SHADOW_SCALE LESS 8))
message(FATAL_ERROR "
Invalid ASan Shadow Scale '${COMPILER_RT_ASAN_SHADOW_SCALE}'.")
endif()
set(COMPILER_RT_ASAN_SHADOW_SCALE_LLVM_FLAG
-mllvm -asan-mapping-scale=${COMPILER_RT_ASAN_SHADOW_SCALE})
set(COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION
ASAN_SHADOW_SCALE=${COMPILER_RT_ASAN_SHADOW_SCALE})
set(COMPILER_RT_ASAN_SHADOW_SCALE_FLAG
-D${COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION})
endif()
set(COMPILER_RT_BAREMETAL_BUILD OFF CACHE BOOLEAN
"Build for a bare-metal target.")
if (COMPILER_RT_STANDALONE_BUILD)
load_llvm_config()
if (TARGET intrinsics_gen)
# Loading the llvm config causes this target to be imported so place it
# under the appropriate folder in an IDE.
set_target_properties(intrinsics_gen PROPERTIES FOLDER "Compiler-RT Misc")
endif()
# Find Python interpreter.
set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5)
include(FindPythonInterp)
if(NOT PYTHONINTERP_FOUND)
message(FATAL_ERROR "
Unable to find Python interpreter required testing. Please install Python
or specify the PYTHON_EXECUTABLE CMake variable.")
endif()
# Define default arguments to lit.
set(LIT_ARGS_DEFAULT "-sv")
if (MSVC OR XCODE)
set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
endif()
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
set(LLVM_LIT_OUTPUT_DIR "${COMPILER_RT_EXEC_OUTPUT_DIR}")
endif()
construct_compiler_rt_default_triple()
if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" MATCHES "hf$")
if (${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "^arm")
set(COMPILER_RT_DEFAULT_TARGET_ARCH "armhf")
endif()
endif()
if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" MATCHES "^android")
set(ANDROID 1)
endif()
pythonize_bool(ANDROID)
set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
pythonize_bool(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR)
# We support running instrumented tests when we're not cross compiling
# and target a UNIX-like system or Windows.
# We can run tests on Android even when we are cross-compiling.
if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR WIN32)) OR ANDROID
OR COMPILER_RT_EMULATOR)
option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
else()
option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
endif()
option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
option(COMPILER_RT_EXTERNALIZE_DEBUGINFO
"Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)
# COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
pythonize_bool(COMPILER_RT_DEBUG)
if(APPLE AND SANITIZER_MIN_OSX_VERSION AND SANITIZER_MIN_OSX_VERSION VERSION_LESS "10.9")
# Mac OS X prior to 10.9 had problems with exporting symbols from
# libc++/libc++abi.
set(cxxabi_supported OFF)
else()
set(cxxabi_supported ON)
endif()
option(SANITIZER_ALLOW_CXXABI "Allow use of C++ ABI details in ubsan" ON)
set(SANITIZE_CAN_USE_CXXABI OFF)
if (cxxabi_supported AND SANITIZER_ALLOW_CXXABI)
set(SANITIZER_CAN_USE_CXXABI ON)
endif()
pythonize_bool(SANITIZER_CAN_USE_CXXABI)
set(SANITIZER_CXX_ABI "default" CACHE STRING
"Specify C++ ABI library to use.")
set(CXXABIS none default libstdc++ libc++)
set_property(CACHE SANITIZER_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
if (SANITIZER_CXX_ABI STREQUAL "default")
if (APPLE)
set(SANITIZER_CXX_ABI_LIBNAME "libc++")
set(SANITIZER_CXX_ABI_SYSTEM 1)
elseif (FUCHSIA)
set(SANITIZER_CXX_ABI_LIBNAME "libc++")
set(SANITIZER_CXX_ABI_INTREE 1)
else()
set(SANITIZER_CXX_ABI_LIBNAME "libstdc++")
set(SANITIZER_CXX_ABI_SYSTEM 1)
endif()
else()
set(SANITIZER_CXX_ABI_LIBNAME "${SANITIZER_CXX_ABI}")
set(SANITIZER_CXX_ABI_SYSTEM 1)
endif()
set(COMPILER_RT_RUNTIME "default" CACHE STRING
"Compiler runtime to use.")
if (COMPILER_RT_RUNTIME STREQUAL "default")
if (FUCHSIA)
set(COMPILER_RT_RUNTIME_LIBRARY "builtins")
endif()
else()
set(COMPILER_RT_RUNTIME_LIBRARY "${COMPILER_RT_RUNTIME}")
endif()
include(config-ix)
#================================
# Setup Compiler Flags
#================================
if(MSVC)
# Override any existing /W flags with /W4. This is what LLVM does. Failing to
# remove other /W[0-4] flags will result in a warning about overriding a
# previous flag.
if (COMPILER_RT_HAS_W4_FLAG)
string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
append_string_if(COMPILER_RT_HAS_W4_FLAG /W4 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
else()
append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
if(COMPILER_RT_ENABLE_WERROR)
append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
# Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
add_definitions(-D__func__=__FUNCTION__)
endif()
# Provide some common commmandline flags for Sanitizer runtimes.
if(NOT WIN32)
append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS)
endif()
append_list_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS)
if(NOT COMPILER_RT_DEBUG AND NOT APPLE)
append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS)
endif()
append_list_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_SANITIZE_SAFE_STACK_FLAG -fno-sanitize=safe-stack SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS)
if(NOT COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG)
append_list_if(COMPILER_RT_HAS_FVISIBILITY_INLINES_HIDDEN_FLAG -fvisibility-inlines-hidden SANITIZER_COMMON_CFLAGS)
endif()
append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS)
# The following is a workaround for powerpc64le. This is the only architecture
# that requires -fno-function-sections to work properly. If lacking, the ASan
# Linux test function-sections-are-bad.cc fails with the following error:
# 'undefined symbol: __sanitizer_unaligned_load32'.
if(DEFINED TARGET_powerpc64le_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections TARGET_powerpc64le_CFLAGS)
endif()
if(MSVC)
# Replace the /M[DT][d] flags with /MT, and strip any definitions of _DEBUG,
# which cause definition mismatches at link time.
# FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214.
if(COMPILER_RT_HAS_MT_FLAG)
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/M[DT]d" "/MT" ${flag_var} "${${flag_var}}")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}")
endforeach()
endif()
append_list_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS)
# VS 2015 (version 1900) added support for thread safe static initialization.
# However, ASan interceptors run before CRT initialization, which causes the
# new thread safe code to crash. Disable this feature for now.
if (MSVC_VERSION GREATER 1899 OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
list(APPEND SANITIZER_COMMON_CFLAGS /Zc:threadSafeInit-)
endif()
endif()
append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS)
# If we're using MSVC,
# always respect the optimization flags set by CMAKE_BUILD_TYPE instead.
if (NOT MSVC)
# Build with optimization, unless we're in debug mode.
if(COMPILER_RT_DEBUG)
list(APPEND SANITIZER_COMMON_CFLAGS -O0)
else()
list(APPEND SANITIZER_COMMON_CFLAGS -O3)
endif()
endif()
# Determine if we should restrict stack frame sizes.
# Stack frames on PowerPC and Mips and in debug biuld can be much larger than
# anticipated.
# FIXME: Fix all sanitizers and add -Wframe-larger-than to
# SANITIZER_COMMON_FLAGS
if(COMPILER_RT_HAS_WFRAME_LARGER_THAN_FLAG AND NOT COMPILER_RT_DEBUG
AND NOT ${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "powerpc|mips")
set(SANITIZER_LIMIT_FRAME_SIZE TRUE)
else()
set(SANITIZER_LIMIT_FRAME_SIZE FALSE)
endif()
if(FUCHSIA OR UNIX)
set(SANITIZER_USE_SYMBOLS TRUE)
else()
set(SANITIZER_USE_SYMBOLS FALSE)
endif()
# Build sanitizer runtimes with debug info.
if(MSVC)
# Use /Z7 instead of /Zi for the asan runtime. This avoids the LNK4099
# warning from the MS linker complaining that it can't find the 'vc140.pdb'
# file used by our object library compilations.
list(APPEND SANITIZER_COMMON_CFLAGS /Z7)
llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/Z[i7I]" "/Z7")
llvm_replace_compiler_option(CMAKE_CXX_FLAGS_DEBUG "/Z[i7I]" "/Z7")
llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELWITHDEBINFO "/Z[i7I]" "/Z7")
elseif(COMPILER_RT_HAS_GLINE_TABLES_ONLY_FLAG AND NOT COMPILER_RT_DEBUG)
list(APPEND SANITIZER_COMMON_CFLAGS -gline-tables-only)
elseif(COMPILER_RT_HAS_G_FLAG)
list(APPEND SANITIZER_COMMON_CFLAGS -g)
endif()
if(LLVM_ENABLE_MODULES)
# Sanitizers cannot be built with -fmodules. The interceptors intentionally
# don't include system headers, which is incompatible with modules.
list(APPEND SANITIZER_COMMON_CFLAGS -fno-modules)
endif()
# Turn off several warnings.
append_list_if(COMPILER_RT_HAS_WGNU_FLAG -Wno-gnu SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WVARIADIC_MACROS_FLAG -Wno-variadic-macros SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WC99_EXTENSIONS_FLAG -Wno-c99-extensions SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WNON_VIRTUAL_DTOR_FLAG -Wno-non-virtual-dtor SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4146_FLAG /wd4146 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4291_FLAG /wd4291 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4391_FLAG /wd4391 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4722_FLAG /wd4722 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4800_FLAG /wd4800 SANITIZER_COMMON_CFLAGS)
# Set common link flags.
append_list_if(COMPILER_RT_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs SANITIZER_COMMON_LINK_FLAGS)
if (COMPILER_RT_RUNTIME_LIBRARY STREQUAL "builtins")
list(APPEND SANITIZER_COMMON_LINK_LIBS ${COMPILER_RT_BUILTINS_LIBRARY})
else()
if (ANDROID)
append_list_if(COMPILER_RT_HAS_GCC_LIB gcc SANITIZER_COMMON_LINK_LIBS)
else()
append_list_if(COMPILER_RT_HAS_GCC_S_LIB gcc_s SANITIZER_COMMON_LINK_LIBS)
endif()
endif()
append_list_if(COMPILER_RT_HAS_LIBC c SANITIZER_COMMON_LINK_LIBS)
if(ANDROID)
# Put the Sanitizer shared libraries in the global group. For more details, see
# android-changes-for-ndk-developers.md#changes-to-library-search-order
if (COMPILER_RT_HAS_Z_GLOBAL)
list(APPEND SANITIZER_COMMON_LINK_FLAGS -Wl,-z,global)
endif()
endif()
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia")
list(APPEND SANITIZER_COMMON_LINK_FLAGS -Wl,-z,defs,-z,now,-z,relro)
list(APPEND SANITIZER_COMMON_LINK_LIBS zircon)
endif()
if (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libc++")
if (SANITIZER_CXX_ABI_INTREE)
if (NOT LIBCXXABI_ENABLE_STATIC_UNWINDER AND (TARGET unwind_shared OR HAVE_LIBUNWIND))
list(APPEND SANITIZER_CXX_ABI_LIBRARY unwind_shared)
elseif (LIBCXXABI_ENABLE_STATIC_UNWINDER AND (TARGET unwind_static OR HAVE_LIBUNWIND))
list(APPEND SANITIZER_CXX_ABI_LIBRARY unwind_static)
endif()
if (NOT LIBCXX_ENABLE_STATIC_ABI_LIBRARY AND (TARGET cxxabi_shared OR HAVE_LIBCXXABI))
list(APPEND SANITIZER_CXX_ABI_LIBRARY cxxabi_shared)
elseif (LIBCXX_ENABLE_STATIC_ABI_LIBRARY AND (TARGET cxxabi_static OR HAVE_LIBCXXABI))
list(APPEND SANITIZER_CXX_ABI_LIBRARY cxxabi_static)
endif()
else()
append_list_if(COMPILER_RT_HAS_LIBCXX c++ SANITIZER_CXX_ABI_LIBRARY)
endif()
elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libcxxabi")
list(APPEND SANITIZER_CXX_ABI_LIBRARY "c++abi")
elseif (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libstdc++")
append_list_if(COMPILER_RT_HAS_LIBSTDCXX stdc++ SANITIZER_CXX_ABI_LIBRARY)
endif()
# Warnings to turn off for all libraries, not just sanitizers.
append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
if (CMAKE_LINKER MATCHES "link.exe$")
# Silence MSVC linker warnings caused by empty object files. The
# sanitizer libraries intentionally use ifdefs that result in empty
# files, rather than skipping these files in the build system.
# Ideally, we would pass this flag only for the libraries that need
# it, but CMake doesn't seem to have a way to set linker flags for
# individual static libraries, so we enable the suppression flag for
# the whole compiler-rt project.
set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /IGNORE:4221")
endif()
add_subdirectory(include)
foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxx
${LLVM_MAIN_SRC_DIR}/runtimes/libcxx
${LLVM_MAIN_SRC_DIR}/../libcxx
${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
if(IS_DIRECTORY ${path})
set(COMPILER_RT_LIBCXX_PATH ${path})
break()
endif()
endforeach()
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/tools/lld)
if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
set(COMPILER_RT_HAS_LLD TRUE)
else()
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/../lld)
if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
set(COMPILER_RT_HAS_LLD TRUE)
else()
set(COMPILER_RT_HAS_LLD FALSE)
endif()
endif()
pythonize_bool(COMPILER_RT_HAS_LLD)
add_subdirectory(lib)
if(COMPILER_RT_INCLUDE_TESTS)
add_subdirectory(unittests)
add_subdirectory(test)
if (COMPILER_RT_STANDALONE_BUILD)
# If we have a valid source tree, generate llvm-lit into the bin directory.
# The user can still choose to have the check targets *use* a different lit
# by specifying -DLLVM_EXTERNAL_LIT, but we generate it regardless.
if (EXISTS ${LLVM_MAIN_SRC_DIR}/utils/llvm-lit)
add_subdirectory(${LLVM_MAIN_SRC_DIR}/utils/llvm-lit ${CMAKE_CURRENT_BINARY_DIR}/llvm-lit)
elseif(NOT EXISTS ${LLVM_EXTERNAL_LIT})
message(WARNING "Could not find LLVM source directory and LLVM_EXTERNAL_LIT does not"
"point to a valid file. You will not be able to run tests.")
endif()
endif()
endif()
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