Commit be910f00 authored by Levi Morrison's avatar Levi Morrison Committed by Brad King

Features: Record standards and features for Intel C++ on UNIX

Skip this for now on Windows (where Intel C++ simulates MSVC).
parent 7f401ae4
# References:
# - https://software.intel.com/en-us/articles/c0x-features-supported-by-intel-c-compiler
# - https://software.intel.com/en-us/articles/c14-features-supported-by-intel-c-compiler
# FIXME: Intel C++ feature detection works only when simulating the GNU compiler.
# When simulating MSVC, Intel always sets __cplusplus to 199711L.
if("x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
return()
endif()
# these are not implemented in any version at time of writing
#set(_cmake_feature_test_cxx_variable_templates "${Intel15_CXX14}")
#set(_cmake_feature_test_cxx_relaxed_constexpr "${Intel15_CXX14}")
set(_cmake_oldestSupported "__INTEL_COMPILER >= 1110")
set(DETECT_CXX11 "((__cplusplus >= 201103L) || defined(__INTEL_CXX11_MODE__) || defined(__GXX_EXPERIMENTAL_CXX0X__))")
#ICC version 15 update 1 has a bug where __cplusplus is defined as 1 no matter
#if you are compiling as 98/11/14. So to properly detect C++14 with this version
#we look for the existence of __GXX_EXPERIMENTAL_CXX0X__ but not __INTEL_CXX11_MODE__
set(DETECT_BUGGY_ICC15 "((__INTEL_COMPILER == 1500) && (__INTEL_COMPILER_UPDATE == 1))")
set(DETECT_CXX14 "((__cplusplus >= 201300L) || ((__cplusplus == 201103L) && !defined(__INTEL_CXX11_MODE__)) || ((${DETECT_BUGGY_ICC15}) && defined(__GXX_EXPERIMENTAL_CXX0X__) && !defined(__INTEL_CXX11_MODE__) ) )")
set(Intel16_CXX14 "__INTEL_COMPILER >= 1600 && ${DETECT_CXX14}")
set(_cmake_feature_test_cxx_aggregate_default_initializers "${Intel16_CXX14}")
set(_cmake_feature_test_cxx_contextual_conversions "${Intel16_CXX14}")
set(_cmake_feature_test_cxx_generic_lambdas "${Intel16_CXX14}")
set(_cmake_feature_test_cxx_digit_separators "${Intel16_CXX14}")
# This test is supposed to work in Intel 14 but the compiler has a bug
# in versions 14 and 15::
# https://software.intel.com/en-us/forums/intel-c-compiler/topic/600514
# It also appears to fail with an internal compiler error on Intel 16.
#set(_cmake_feature_test_cxx_generalized_initializers "${Intel16_CXX14}")
set(Intel15_CXX14 "__INTEL_COMPILER >= 1500 && ${DETECT_CXX14}")
set(_cmake_feature_test_cxx_decltype_auto "${Intel15_CXX14}")
set(_cmake_feature_test_cxx_lambda_init_captures "${Intel15_CXX14}")
set(_cmake_feature_test_cxx_attribute_deprecated "${Intel15_CXX14}")
set(_cmake_feature_test_cxx_return_type_deduction "${Intel15_CXX14}")
set(Intel15_CXX11 "__INTEL_COMPILER >= 1500 && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_alignas "${Intel15_CXX11}")
set(_cmake_feature_test_cxx_alignof "${Intel15_CXX11}")
set(_cmake_feature_test_cxx_inheriting_constructors "${Intel15_CXX11}")
set(_cmake_feature_test_cxx_user_literals "${Intel15_CXX11}")
set(_cmake_feature_test_cxx_thread_local "${Intel15_CXX11}")
set(Intel14_CXX11 "${DETECT_CXX11} && (__INTEL_COMPILER > 1400 || (__INTEL_COMPILER == 1400 && __INTEL_COMPILER_UPDATE >= 2))")
# Documented as 12.0+ but in testing it only works on 14.0.2+
set(_cmake_feature_test_cxx_decltype_incomplete_return_types "${Intel14_CXX11}")
set(Intel14_CXX11 "__INTEL_COMPILER >= 1400 && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_delegating_constructors "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_constexpr "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_sizeof_member "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_strong_enums "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_reference_qualified_functions "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_raw_string_literals "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_unicode_literals "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_inline_namespaces "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_unrestricted_unions "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_nonstatic_member_init "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_enum_forward_declarations "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_override "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_final "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_noexcept "${Intel14_CXX11}")
set(_cmake_feature_test_cxx_defaulted_move_initializers "${Intel14_CXX11}")
set(Intel13_CXX11 "__INTEL_COMPILER >= 1300 && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_explicit_conversions "${Intel13_CXX11}")
set(_cmake_feature_test_cxx_range_for "${Intel13_CXX11}")
# Cannot find Intel documentation for N2640: cxx_uniform_initialization
set(_cmake_feature_test_cxx_uniform_initialization "${Intel13_CXX11}")
set(Intel121_CXX11 "__INTEL_COMPILER >= 1210 && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_variadic_templates "${Intel121_CXX11}")
set(_cmake_feature_test_cxx_alias_templates "${Intel121_CXX11}")
set(_cmake_feature_test_cxx_nullptr "${Intel121_CXX11}")
set(_cmake_feature_test_cxx_trailing_return_types "${Intel121_CXX11}")
set(_cmake_feature_test_cxx_attributes "${Intel121_CXX11}")
set(_cmake_feature_test_cxx_default_function_template_args "${Intel121_CXX11}")
set(Intel12_CXX11 "__INTEL_COMPILER >= 1200 && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_extended_friend_declarations "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_rvalue_references "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_decltype "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_defaulted_functions "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_deleted_functions "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_local_type_template_args "${Intel12_CXX11}")
set(_cmake_feature_test_cxx_lambdas "${Intel12_CXX11}")
set(Intel11_CXX11 "${_cmake_oldestSupported} && ${DETECT_CXX11}")
set(_cmake_feature_test_cxx_binary_literals "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_static_assert "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_right_angle_brackets "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_auto_type "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_extern_templates "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_variadic_macros "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_long_long_type "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_func_identifier "${Intel11_CXX11}")
set(_cmake_feature_test_cxx_template_template_parameters "${Intel11_CXX11}")
......@@ -8,5 +8,63 @@ set(CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-O2 -g -DNDEBUG")
set(CMAKE_DEPFILE_FLAGS_CXX "-MD -MT <OBJECT> -MF <DEPFILE>")
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0.2)
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14")
# todo: there is no gnu++14 value supported; figure out what to do
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=c++14")
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0.0)
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
# todo: there is no gnu++14 value supported; figure out what to do
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=c++1y")
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13.0)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
endif()
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
if (NOT CMAKE_CXX_COMPILER_FORCED)
if (NOT CMAKE_CXX_STANDARD_COMPUTED_DEFAULT)
message(FATAL_ERROR "CMAKE_CXX_STANDARD_COMPUTED_DEFAULT should be set for ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) version ${CMAKE_CXX_COMPILER_VERSION}")
else()
set(CMAKE_CXX_STANDARD_DEFAULT ${CMAKE_CXX_STANDARD_COMPUTED_DEFAULT})
endif()
elseif (NOT CMAKE_CXX_STANDARD_COMPUTED_DEFAULT)
# Compiler id was forced so just guess the default standard level.
set(CMAKE_CXX_STANDARD_DEFAULT 98)
endif()
endif()
macro(cmake_record_cxx_compile_features)
macro(_get_intel_features std_version list)
record_compiler_features(CXX "${std_version}" ${list})
endmacro()
set(_result 0)
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC" AND
NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0)
_get_intel_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
endif()
if (_result EQUAL 0)
_get_intel_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
endif()
if (_result EQUAL 0)
_get_intel_features(${CMAKE_CXX98_STANDARD_COMPILE_OPTION} CMAKE_CXX98_COMPILE_FEATURES)
endif()
endif()
endmacro()
set(CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
set(CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
......@@ -119,6 +119,55 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
endif()
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16.0)
if (CMAKE_CXX_COMIPLER_VERSION VERSION_EQUAL 15.0)
list(REMOVE_ITEM CXX_non_features
# The cxx_contextual_conversions feature happens to work
# (for *this* testcase) with Intel 13/14/15, but they do not
# document support until 16.
cxx_contextual_conversions
)
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 14.0)
list(REMOVE_ITEM CXX_non_features
cxx_alignof
# not supposed to work until 15
cxx_attribute_deprecated
# The cxx_contextual_conversions feature happens to work
# (for *this* testcase) with Intel 13/14/15, but they do not
# document support until 16.
cxx_contextual_conversions
)
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
list(REMOVE_ITEM CXX_non_features
# These features happen to work but aren't documented to
# do so until 14.0
cxx_constexpr
cxx_enum_forward_declarations
cxx_sizeof_member
cxx_strong_enums
cxx_unicode_literals
# not supposed to work until 15
cxx_attribute_deprecated
cxx_nonstatic_member_init
# The cxx_contextual_conversions feature happens to work
# (for *this* testcase) with Intel 13/14/15, but they do not
# document support until 16.
cxx_contextual_conversions
# This is an undocumented feature; it does not work in future versions
cxx_aggregate_default_initializers
)
endif()
endif()
endif()
set(C_ext c)
set(C_standard_flag 11)
set(CXX_ext cpp)
......@@ -301,6 +350,29 @@ if (CMAKE_CXX_COMPILE_FEATURES)
-DEXPECT_FINAL=1
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=1
)
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15)
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=1
-DEXPECT_INHERITING_CONSTRUCTORS=1
-DEXPECT_FINAL=1
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=1
)
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 14)
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=1
-DEXPECT_INHERITING_CONSTRUCTORS=0
-DEXPECT_FINAL=1
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=0
)
else()
add_definitions(
-DEXPECT_OVERRIDE_CONTROL=0
-DEXPECT_INHERITING_CONSTRUCTORS=0
-DEXPECT_FINAL=0
-DEXPECT_INHERITING_CONSTRUCTORS_AND_FINAL=0
)
endif()
endif()
add_executable(CompileFeaturesGenex genex_test.cpp)
......
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