message(FATAL_ERROR "Host Clang version must be at least 3.1!")
endif()
- # Also test that we aren't using too old of a version of libstdc++ with the
- # Clang compiler. This is tricky as there is no real way to check the
- # version of libstdc++ directly. Instead we test for a known bug in
- # libstdc++4.6 that is fixed in libstdc++4.7.
- if(NOT LLVM_ENABLE_LIBCXX)
+ if (CMAKE_CXX_SIMULATE_ID MATCHES "MSVC")
+ if (CMAKE_CXX_SIMULATE_VERSION VERSION_LESS 18.0)
+ message(FATAL_ERROR "Host Clang must have at least -fms-compatibility-version=18.0")
+ endif()
+ set(CLANG_CL 1)
+ elseif(NOT LLVM_ENABLE_LIBCXX)
+ # Otherwise, test that we aren't using too old of a version of libstdc++
+ # with the Clang compiler. This is tricky as there is no real way to
+ # check the version of libstdc++ directly. Instead we test for a known
+ # bug in libstdc++4.6 that is fixed in libstdc++4.7.
set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
set(OLD_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
set(CMAKE_REQUIRED_FLAGS "-std=c++0x")
set(CMAKE_REQUIRED_LIBRARIES ${OLD_CMAKE_REQUIRED_LIBRARIES})
endif()
elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
- if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0.31101)
- message(FATAL_ERROR "Host Visual Studio must be at least 2013 Update 4 (MSVC 18.0.31101)")
+ if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
+ message(FATAL_ERROR "Host Visual Studio must be at least 2013")
+ elseif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0.31101)
+ message(WARNING "Host Visual Studio should at least be 2013 Update 4 (MSVC 18.0.31101)"
+ " due to miscompiles from earlier versions")
endif()
endif()
endif()
endif()
endif()
+string(TOUPPER "${LLVM_ABI_BREAKING_CHECKS}" uppercase_LLVM_ABI_BREAKING_CHECKS)
+
+if( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "WITH_ASSERTS" )
+ if( LLVM_ENABLE_ASSERTIONS )
+ set( LLVM_ENABLE_ABI_BREAKING_CHECKS 1 )
+ endif()
+elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_ON" )
+ set( LLVM_ENABLE_ABI_BREAKING_CHECKS 1 )
+elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_OFF" )
+ # We don't need to do anything special to turn off ABI breaking checks.
+else()
+ message(FATAL_ERROR "Unknown value for LLVM_ABI_BREAKING_CHECKS: \"${LLVM_ABI_BREAKING_CHECKS}\"!")
+endif()
+
if(WIN32)
set(LLVM_HAVE_LINK_VERSION_SCRIPT 0)
if(CYGWIN)
-D_CRT_NONSTDC_NO_WARNINGS
-D_SCL_SECURE_NO_DEPRECATE
-D_SCL_SECURE_NO_WARNINGS
+ )
+ set(msvc_warning_flags
# Disabled warnings.
-wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
-wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
-wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
-wd4722 # Suppress 'function' : destructor never returns, potential memory leak
-wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
+ -wd4100 # Suppress 'unreferenced formal parameter'
+ -wd4127 # Suppress 'conditional expression is constant'
+ -wd4512 # Suppress 'assignment operator could not be generated'
+ -wd4505 # Suppress 'unreferenced local function has been removed'
+ -wd4610 # Suppress '<class> can never be instantiated'
+ -wd4510 # Suppress 'default constructor could not be generated'
+ -wd4702 # Suppress 'unreachable code'
+ -wd4245 # Suppress 'signed/unsigned mismatch'
+ -wd4706 # Suppress 'assignment within conditional expression'
+ -wd4310 # Suppress 'cast truncates constant value'
+ -wd4701 # Suppress 'potentially uninitialized local variable'
+ -wd4703 # Suppress 'potentially uninitialized local pointer variable'
+ -wd4389 # Suppress 'signed/unsigned mismatch'
+ -wd4611 # Suppress 'interaction between '_setjmp' and C++ object destruction is non-portable'
+ -wd4805 # Suppress 'unsafe mix of type <type> and type <type> in operation'
+ -wd4204 # Suppress 'nonstandard extension used : non-constant aggregate initializer'
# Promoted warnings.
-w14062 # Promote 'enumerator in switch of enum is not handled' to level 1 warning.
# Enable warnings
if (LLVM_ENABLE_WARNINGS)
- add_llvm_definitions( /W4 )
+ append("/W4" msvc_warning_flags)
+ # CMake appends /W3 by default, and having /W3 followed by /W4 will result in
+ # cl : Command line warning D9025 : overriding '/W3' with '/W4'. Since this is
+ # a command line warning and not a compiler warning, it cannot be suppressed except
+ # by fixing the command line.
+ string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+ string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+
if (LLVM_ENABLE_PEDANTIC)
# No MSVC equivalent available
endif (LLVM_ENABLE_PEDANTIC)
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
- add_llvm_definitions( /WX )
+ append("/WX" msvc_warning_flags)
endif (LLVM_ENABLE_WERROR)
+
+ foreach(flag ${msvc_warning_flags})
+ append("${flag}" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ endforeach(flag)
+
elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
if (LLVM_ENABLE_WARNINGS)
append("-Wall -W -Wno-unused-parameter -Wwrite-strings" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
message(WARNING "LLVM_USE_SANITIZER is not supported on this platform.")
endif()
if (LLVM_USE_SANITIZE_COVERAGE)
- append("-fsanitize-coverage=4" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ append("-fsanitize-coverage=4 -mllvm -sanitizer-coverage-8bit-counters=1" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
endif()
# But MinSizeRel seems to add that automatically, so maybe disable these
# flags instead if LLVM_NO_DEAD_STRIP is set.
if(NOT CYGWIN AND NOT WIN32)
- if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+ if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND
+ NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
check_c_compiler_flag("-Werror -fno-function-sections" C_SUPPORTS_FNO_FUNCTION_SECTIONS)
if (C_SUPPORTS_FNO_FUNCTION_SECTIONS)
# Don't add -ffunction-section if it can be disabled with -fno-function-sections.
projects / oota-llvm.git / blobdiff