# selections.
include(AddLLVMDefinitions)
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
if( CMAKE_COMPILER_IS_GNUCXX )
set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
endif()
-# 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()
-
if( LLVM_ENABLE_ASSERTIONS )
# MSVC doesn't like _DEBUG on release builds. See PR 4379.
if( NOT MSVC )
endif(UNIX)
endif(WIN32)
+function(add_flag_or_print_warning flag)
+ check_c_compiler_flag(${flag} C_SUPPORTS_${flag})
+ check_cxx_compiler_flag(${flag} CXX_SUPPORTS_${flag})
+ if (C_SUPPORTS_${flag} AND CXX_SUPPORTS_${flag})
+ message(STATUS "Building with ${flag}")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}" PARENT_SCOPE)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}" PARENT_SCOPE)
+ else()
+ message(WARNING "${flag} is not supported.")
+ endif()
+endfunction()
+
+function(append_if variable value condition)
+ if (${condition})
+ set(${variable} "${${variable}} ${value}" PARENT_SCOPE)
+ endif()
+endfunction()
+
if( LLVM_ENABLE_PIC )
if( XCODE )
# Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
elseif( WIN32 OR CYGWIN)
# On Windows all code is PIC. MinGW warns if -fPIC is used.
else()
- include(CheckCXXCompilerFlag)
- check_cxx_compiler_flag("-fPIC" SUPPORTS_FPIC_FLAG)
- if( SUPPORTS_FPIC_FLAG )
- message(STATUS "Building with -fPIC")
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
- else( SUPPORTS_FPIC_FLAG )
- message(WARNING "-fPIC not supported.")
- endif()
+ add_flag_or_print_warning("-fPIC")
if( WIN32 OR CYGWIN)
# MinGW warns if -fvisibility-inlines-hidden is used.
else()
check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG)
- if( SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG )
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
- endif()
- endif()
+ append_if(CMAKE_CXX_FLAGS "-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG)
+ endif()
endif()
endif()
add_llvm_definitions( -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 )
-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'
-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'
- -wd4181 # Suppress 'qualifier applied to reference type; ignored'
# Promoted warnings.
-w14062 # Promote 'enumerator in switch of enum is not handled' to level 1 warning.
- -w14239 # Promote 'nonstandard extension used : 'token' : conversion from 'type' to 'type'' to level 1 warning.
+
+ # Promoted warnings to errors.
+ -we4238 # Promote 'nonstandard extension used : class rvalue used as lvalue' to error.
)
# Enable warnings
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 )
endif (LLVM_ENABLE_PEDANTIC)
- check_cxx_compiler_flag("-Werror -Wcovered-switch-default" SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
- if( SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG )
- add_llvm_definitions( -Wcovered-switch-default )
- endif()
+ check_cxx_compiler_flag("-Werror -Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ append_if(CMAKE_CXX_FLAGS "-Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ check_c_compiler_flag("-Werror -Wcovered-switch-default" C_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ append_if(CMAKE_C_FLAGS "-Wcovered-switch-default" C_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
+ append_if(CMAKE_CXX_FLAGS "-Wno-uninitialized" USE_NO_UNINITIALIZED)
+ append_if(CMAKE_CXX_FLAGS "-Wno-maybe-uninitialized" USE_NO_MAYBE_UNINITIALIZED)
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( -Werror )
projects / oota-llvm.git / blobdiff