-include(AddLLVMDefinitions)
+# This CMake module is responsible for interpreting the user defined LLVM_
+# options and executing the appropriate CMake commands to realize the users'
+# selections.
-# Run-time build mode; It is used for unittests.
-if(MSVC_IDE)
- # Expect "$(Configuration)", "$(OutDir)", etc.
- # It is expanded by msbuild or similar.
- set(RUNTIME_BUILD_MODE "${CMAKE_CFG_INTDIR}")
-elseif(NOT CMAKE_BUILD_TYPE STREQUAL "")
- # Expect "Release" "Debug", etc.
- # Or unittests could not run.
- set(RUNTIME_BUILD_MODE ${CMAKE_BUILD_TYPE})
-else()
- # It might be "."
- set(RUNTIME_BUILD_MODE "${CMAKE_CFG_INTDIR}")
-endif()
+include(AddLLVMDefinitions)
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
-set(LIT_ARGS_DEFAULT "-sv")
-if (MSVC OR XCODE)
- set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
+if( CMAKE_COMPILER_IS_GNUCXX )
+ set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
+ set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
endif()
-set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}"
- CACHE STRING "Default options for lit")
if( LLVM_ENABLE_ASSERTIONS )
# MSVC doesn't like _DEBUG on release builds. See PR 4379.
endif()
else()
if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
- add_definitions( -DNDEBUG )
+ if( NOT MSVC_IDE AND NOT XCODE )
+ add_definitions( -DNDEBUG )
+ endif()
endif()
endif()
# Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
# know how to disable this, so just force ENABLE_PIC off for now.
message(WARNING "-fPIC not supported with Xcode.")
- elseif( WIN32 )
+ elseif( WIN32 OR CYGWIN)
# On Windows all code is PIC. MinGW warns if -fPIC is used.
else()
- include(CheckCXXCompilerFlag)
check_cxx_compiler_flag("-fPIC" SUPPORTS_FPIC_FLAG)
if( SUPPORTS_FPIC_FLAG )
message(STATUS "Building with -fPIC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
- set(CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
else( SUPPORTS_FPIC_FLAG )
message(WARNING "-fPIC not supported.")
endif()
+
+ if( WIN32 OR CYGWIN)
+ # MinGW warns if -fvisibility-inlines-hidden is used.
+ else()
+ check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG)
+ if( SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG )
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
+ endif()
+ endif()
endif()
endif()
if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
# TODO: support other platforms and toolchains.
- option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
if( LLVM_BUILD_32_BITS )
message(STATUS "Building 32 bits executables and libraries.")
add_llvm_definitions( -m32 )
- list(APPEND CMAKE_EXE_LINKER_FLAGS -m32)
- list(APPEND CMAKE_SHARED_LINKER_FLAGS -m32)
+ set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
+ set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
+ set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -m32")
endif( LLVM_BUILD_32_BITS )
endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
+# On Win32 using MS tools, provide an option to set the number of parallel jobs
+# to use.
+if( MSVC_IDE )
+ set(LLVM_COMPILER_JOBS "0" CACHE STRING
+ "Number of parallel compiler jobs. 0 means use all processors. Default is 0.")
+ if( NOT LLVM_COMPILER_JOBS STREQUAL "1" )
+ if( LLVM_COMPILER_JOBS STREQUAL "0" )
+ add_llvm_definitions( /MP )
+ else()
+ if (MSVC10)
+ message(FATAL_ERROR
+ "Due to a bug in CMake only 0 and 1 is supported for "
+ "LLVM_COMPILER_JOBS when generating for Visual Studio 2010")
+ else()
+ message(STATUS "Number of parallel compiler jobs set to " ${LLVM_COMPILER_JOBS})
+ add_llvm_definitions( /MP${LLVM_COMPILER_JOBS} )
+ endif()
+ endif()
+ else()
+ message(STATUS "Parallel compilation disabled")
+ endif()
+endif()
+
if( MSVC )
include(ChooseMSVCCRT)
+ if( MSVC11 )
+ add_llvm_definitions(-D_VARIADIC_MAX=10)
+ endif()
+
# Add definitions that make MSVC much less annoying.
add_llvm_definitions(
# For some reason MS wants to deprecate a bunch of standard functions...
-D_SCL_SECURE_NO_DEPRECATE
-D_SCL_SECURE_NO_WARNINGS
+ # Disabled warnings.
+ -wd4065 # Suppress 'switch statement contains 'default' but no 'case' labels'
-wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
-wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
+ -wd4181 # Suppress 'qualifier applied to reference type; ignored'
-wd4224 # Suppress 'nonstandard extension used : formal parameter 'identifier' was previously defined as a type'
-wd4244 # Suppress ''argument' : conversion from 'type1' to 'type2', possible loss of data'
-wd4267 # Suppress ''var' : conversion from 'size_t' to 'type', possible loss of data'
-wd4351 # Suppress 'new behavior: elements of array 'array' will be default initialized'
-wd4355 # Suppress ''this' : used in base member initializer list'
-wd4503 # Suppress ''identifier' : decorated name length exceeded, name was truncated'
+ -wd4551 # Suppress 'function call missing argument list'
-wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
-wd4715 # Suppress ''function' : not all control paths return a value'
+ -wd4722 # Suppress ''function' : destructor never returns, potential memory leak'
-wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
- -wd4065 # Suppress 'switch statement contains 'default' but no 'case' labels'
- -w14062 # Promote "enumerator in switch of enum is not handled" to level 1 warning.
+ # Promoted warnings.
+ -w14062 # Promote 'enumerator in switch of enum is not handled' to level 1 warning.
+
+ # Promoted warnings to errors.
+ -we4238 # Promote 'nonstandard extension used : class rvalue used as lvalue' to error.
)
# Enable warnings
if (LLVM_ENABLE_WARNINGS)
- add_llvm_definitions( /W4 /Wall )
+ add_llvm_definitions( /W4 )
if (LLVM_ENABLE_PEDANTIC)
# No MSVC equivalent available
endif (LLVM_ENABLE_PEDANTIC)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( /WX )
endif (LLVM_ENABLE_WERROR)
-elseif( CMAKE_COMPILER_IS_GNUCXX )
+elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
if (LLVM_ENABLE_WARNINGS)
add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
+
+ # Turn off missing field initializer warnings for gcc to avoid noise from
+ # false positives with empty {}. Turn them on otherwise (they're off by
+ # default for clang).
+ check_cxx_compiler_flag("-Wmissing-field-initializers" CXX_SUPPORTS_MISSING_FIELD_INITIALIZERS_FLAG)
+ if (CXX_SUPPORTS_MISSING_FIELD_INITIALIZERS_FLAG)
+ if (CMAKE_COMPILER_IS_GNUCXX)
+ add_llvm_definitions( -Wno-missing-field-initializers )
+ else()
+ add_llvm_definitions( -Wmissing-field-initializers )
+ endif()
+ endif()
+
if (LLVM_ENABLE_PEDANTIC)
add_llvm_definitions( -pedantic -Wno-long-long )
+ check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
+ if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG )
+ set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" )
+ endif()
endif (LLVM_ENABLE_PEDANTIC)
+ check_cxx_compiler_flag("-Werror -Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ if( CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG )
+ set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wcovered-switch-default" )
+ endif()
+ check_c_compiler_flag("-Werror -Wcovered-switch-default" C_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ if( C_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG )
+ set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wcovered-switch-default" )
+ endif()
+ if (USE_NO_UNINITIALIZED)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-uninitialized")
+ endif()
+ if (USE_NO_MAYBE_UNINITIALIZED)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-maybe-uninitialized")
+ endif()
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( -Werror )
endif (LLVM_ENABLE_WERROR)
endif( MSVC )
-add_llvm_definitions( -D__STDC_LIMIT_MACROS )
add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
-
+add_llvm_definitions( -D__STDC_FORMAT_MACROS )
+add_llvm_definitions( -D__STDC_LIMIT_MACROS )
projects / oota-llvm.git / blobdiff