diff options
Diffstat (limited to 'Modules/FindOpenMP.cmake')
| -rw-r--r-- | Modules/FindOpenMP.cmake | 122 |
1 files changed, 94 insertions, 28 deletions
diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake index 1093be0..893ddc6 100644 --- a/Modules/FindOpenMP.cmake +++ b/Modules/FindOpenMP.cmake @@ -16,6 +16,19 @@ # Variables # ^^^^^^^^^ # +# The module exposes the components ``C``, ``CXX``, and ``Fortran``. +# Each of these controls the various languages to search OpenMP support for. +# +# Depending on the enabled components the following variables will be set: +# +# ``OpenMP_FOUND`` +# Variable indicating that OpenMP flags for all requested languages have been found. +# If no components are specified, this is true if OpenMP settings for all enabled languages +# were detected. +# ``OpenMP_VERSION`` +# Minimal version of the OpenMP standard detected among the requested languages, +# or all enabled languages if no components were specified. +# # This module will set the following variables per language in your # project, where ``<lang>`` is one of C, CXX, or Fortran: # @@ -60,18 +73,10 @@ # The specification date is formatted as given in the OpenMP standard: # ``yyyymm`` where ``yyyy`` and ``mm`` represents the year and month of # the OpenMP specification implemented by the ``<lang>`` compiler. -# -# Backward Compatibility -# ^^^^^^^^^^^^^^^^^^^^^^ -# -# For backward compatibility with older versions of FindOpenMP, these -# variables are set, but deprecated:: -# -# OpenMP_FOUND -# -# In new projects, please use the ``OpenMP_<lang>_XXX`` equivalents. cmake_policy(PUSH) +cmake_policy(SET CMP0012 NEW) # if() recognizes numbers and booleans +cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced cmake_policy(SET CMP0057 NEW) # if IN_LIST function(_OPENMP_FLAG_CANDIDATES LANG) @@ -95,10 +100,11 @@ function(_OPENMP_FLAG_CANDIDATES LANG) set(OMP_FLAG_NAG "-openmp") set(OMP_FLAG_Absoft "-openmp") set(OMP_FLAG_PGI "-mp") + set(OMP_FLAG_Flang "-fopenmp") set(OMP_FLAG_SunPro "-xopenmp") set(OMP_FLAG_XL "-qsmp=omp") - # Cray compiles with OpenMP automatically - set(OMP_FLAG_Cray " ") + # Cray compiler activate OpenMP with -h omp, which is enabled by default. + set(OMP_FLAG_Cray " " "-h omp") # If we know the correct flags, use those if(DEFINED OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}) @@ -118,7 +124,9 @@ set(OpenMP_C_CXX_TEST_SOURCE " #include <omp.h> int main() { -#ifndef _OPENMP +#ifdef _OPENMP + return 0; +#else breaks_on_purpose #endif } @@ -161,14 +169,23 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) _OPENMP_FLAG_CANDIDATES("${LANG}") _OPENMP_WRITE_SOURCE_FILE("${LANG}" "TEST_SOURCE" OpenMPTryFlag _OPENMP_TEST_SRC) + unset(OpenMP_VERBOSE_COMPILE_OPTIONS) + separate_arguments(OpenMP_VERBOSE_OPTIONS NATIVE_COMMAND "${CMAKE_${LANG}_VERBOSE_FLAG}") + foreach(_VERBOSE_OPTION IN LISTS OpenMP_VERBOSE_OPTIONS) + if(NOT _VERBOSE_OPTION MATCHES "^-Wl,") + list(APPEND OpenMP_VERBOSE_COMPILE_OPTIONS ${_VERBOSE_OPTION}) + endif() + endforeach() + foreach(OPENMP_FLAG IN LISTS OpenMP_${LANG}_FLAG_CANDIDATES) set(OPENMP_FLAGS_TEST "${OPENMP_FLAG}") - if(CMAKE_${LANG}_VERBOSE_FLAG) - string(APPEND OPENMP_FLAGS_TEST " ${CMAKE_${LANG}_VERBOSE_FLAG}") + if(OpenMP_VERBOSE_COMPILE_OPTIONS) + string(APPEND OPENMP_FLAGS_TEST " ${OpenMP_VERBOSE_COMPILE_OPTIONS}") endif() string(REGEX REPLACE "[-/=+]" "" OPENMP_PLAIN_FLAG "${OPENMP_FLAG}") try_compile( OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG} ${CMAKE_BINARY_DIR} ${_OPENMP_TEST_SRC} CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAGS_TEST}" + LINK_LIBRARIES ${CMAKE_${LANG}_VERBOSE_FLAG} OUTPUT_VARIABLE OpenMP_TRY_COMPILE_OUTPUT ) @@ -197,13 +214,28 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) unset(_OPENMP_LIB_NAMES) foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_IMPLICIT_LIBRARIES) - if(NOT "${_OPENMP_IMPLICIT_LIB}" IN_LIST CMAKE_${LANG}_IMPLICIT_LINK_LIBRARIES) - find_library(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY - NAMES "${_OPENMP_IMPLICIT_LIB}" - HINTS ${OpenMP_${LANG}_IMPLICIT_LINK_DIRS} - ) - mark_as_advanced(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY) - list(APPEND _OPENMP_LIB_NAMES ${_OPENMP_IMPLICIT_LIB}) + get_filename_component(_OPENMP_IMPLICIT_LIB_DIR "${_OPENMP_IMPLICIT_LIB}" DIRECTORY) + get_filename_component(_OPENMP_IMPLICIT_LIB_NAME "${_OPENMP_IMPLICIT_LIB}" NAME) + get_filename_component(_OPENMP_IMPLICIT_LIB_PLAIN "${_OPENMP_IMPLICIT_LIB}" NAME_WE) + string(REGEX REPLACE "([][+.*?()^$])" "\\\\\\1" _OPENMP_IMPLICIT_LIB_PLAIN_ESC "${_OPENMP_IMPLICIT_LIB_PLAIN}") + string(REGEX REPLACE "([][+.*?()^$])" "\\\\\\1" _OPENMP_IMPLICIT_LIB_PATH_ESC "${_OPENMP_IMPLICIT_LIB}") + if(NOT ( "${_OPENMP_IMPLICIT_LIB}" IN_LIST CMAKE_${LANG}_IMPLICIT_LINK_LIBRARIES + OR "${CMAKE_${LANG}_STANDARD_LIBRARIES}" MATCHES "(^| )(-Wl,)?(-l)?(${_OPENMP_IMPLICIT_LIB_PLAIN_ESC}|${_OPENMP_IMPLICIT_LIB_PATH_ESC})( |$)" + OR "${CMAKE_${LANG}_LINK_EXECUTABLE}" MATCHES "(^| )(-Wl,)?(-l)?(${_OPENMP_IMPLICIT_LIB_PLAIN_ESC}|${_OPENMP_IMPLICIT_LIB_PATH_ESC})( |$)" ) ) + if(_OPENMP_IMPLICIT_LIB_DIR) + set(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY "${_OPENMP_IMPLICIT_LIB}" CACHE FILEPATH + "Path to the ${_OPENMP_IMPLICIT_LIB_PLAIN} library for OpenMP") + else() + find_library(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY + NAMES "${_OPENMP_IMPLICIT_LIB_NAME}" + DOC "Path to the ${_OPENMP_IMPLICIT_LIB_PLAIN} library for OpenMP" + HINTS ${OpenMP_${LANG}_IMPLICIT_LINK_DIRS} + CMAKE_FIND_ROOT_PATH_BOTH + NO_DEFAULT_PATH + ) + endif() + mark_as_advanced(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY) + list(APPEND _OPENMP_LIB_NAMES ${_OPENMP_IMPLICIT_LIB_PLAIN}) endif() endforeach() set("${OPENMP_LIB_NAMES_VAR}" "${_OPENMP_LIB_NAMES}" PARENT_SCOPE) @@ -214,6 +246,8 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) find_library(OpenMP_libiomp5md_LIBRARY NAMES "libiomp5md" HINTS ${CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES} + CMAKE_FIND_ROOT_PATH_BOTH + NO_DEFAULT_PATH ) mark_as_advanced(OpenMP_libiomp5md_LIBRARY) else() @@ -225,6 +259,8 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) set("${OPENMP_LIB_NAMES_VAR}" "NOTFOUND" PARENT_SCOPE) set("${OPENMP_FLAG_VAR}" "NOTFOUND" PARENT_SCOPE) endforeach() + + unset(OpenMP_VERBOSE_COMPILE_OPTIONS) endfunction() set(OpenMP_C_CXX_CHECK_VERSION_SOURCE @@ -243,6 +279,7 @@ const char ompver_str[] = { 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'M', int main() { puts(ompver_str); + return 0; } ") @@ -285,6 +322,8 @@ endfunction() macro(_OPENMP_SET_VERSION_BY_SPEC_DATE LANG) set(OpenMP_SPEC_DATE_MAP + # Preview versions + "201611=5.0" # OpenMP 5.0 preview 1 # Combined versions, 2.5 onwards "201511=4.5" "201307=4.0" @@ -303,7 +342,11 @@ macro(_OPENMP_SET_VERSION_BY_SPEC_DATE LANG) "199710=1.0" ) - string(REGEX MATCHALL "${OpenMP_${LANG}_SPEC_DATE}=([0-9]+)\\.([0-9]+)" _version_match "${OpenMP_SPEC_DATE_MAP}") + if(OpenMP_${LANG}_SPEC_DATE) + string(REGEX MATCHALL "${OpenMP_${LANG}_SPEC_DATE}=([0-9]+)\\.([0-9]+)" _version_match "${OpenMP_SPEC_DATE_MAP}") + else() + set(_version_match "") + endif() if(NOT _version_match STREQUAL "") set(OpenMP_${LANG}_VERSION_MAJOR ${CMAKE_MATCH_1}) set(OpenMP_${LANG}_VERSION_MINOR ${CMAKE_MATCH_2}) @@ -372,11 +415,17 @@ if(CMAKE_Fortran_COMPILER_LOADED) endif() endif() -set(OPENMP_FOUND TRUE) +if(NOT OpenMP_FIND_COMPONENTS) + set(OpenMP_FINDLIST C CXX Fortran) +else() + set(OpenMP_FINDLIST ${OpenMP_FIND_COMPONENTS}) +endif() -foreach(LANG IN ITEMS C CXX Fortran) +unset(_OpenMP_MIN_VERSION) + +foreach(LANG IN LISTS OpenMP_FINDLIST) if(CMAKE_${LANG}_COMPILER_LOADED) - if (NOT OpenMP_${LANG}_SPEC_DATE) + if (NOT OpenMP_${LANG}_SPEC_DATE AND OpenMP_${LANG}_FLAGS) _OPENMP_GET_SPEC_DATE("${LANG}" OpenMP_${LANG}_SPEC_DATE_INTERNAL) set(OpenMP_${LANG}_SPEC_DATE "${OpenMP_${LANG}_SPEC_DATE_INTERNAL}" CACHE INTERNAL "${LANG} compiler's OpenMP specification date") @@ -405,6 +454,11 @@ foreach(LANG IN ITEMS C CXX Fortran) ) if(OpenMP_${LANG}_FOUND) + if(DEFINED OpenMP_${LANG}_VERSION) + if(NOT _OpenMP_MIN_VERSION OR _OpenMP_MIN_VERSION VERSION_GREATER OpenMP_${LANG}_VERSION) + set(_OpenMP_MIN_VERSION OpenMP_${LANG}_VERSION) + endif() + endif() set(OpenMP_${LANG}_LIBRARIES "") foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_LIB_NAMES) list(APPEND OpenMP_${LANG}_LIBRARIES "${OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY}") @@ -423,12 +477,24 @@ foreach(LANG IN ITEMS C CXX Fortran) set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY INTERFACE_LINK_LIBRARIES "${OpenMP_${LANG}_LIBRARIES}") endif() - else() - set(OPENMP_FOUND FALSE) endif() endif() endforeach() +unset(_OpenMP_REQ_VARS) +foreach(LANG IN ITEMS C CXX Fortran) + if((NOT OpenMP_FIND_COMPONENTS AND CMAKE_${LANG}_COMPILER_LOADED) OR LANG IN_LIST OpenMP_FIND_COMPONENTS) + list(APPEND _OpenMP_REQ_VARS "OpenMP_${LANG}_FOUND") + endif() +endforeach() + +find_package_handle_standard_args(OpenMP + REQUIRED_VARS ${_OpenMP_REQ_VARS} + VERSION_VAR ${_OpenMP_MIN_VERSION} + HANDLE_COMPONENTS) + +set(OPENMP_FOUND ${OpenMP_FOUND}) + if(CMAKE_Fortran_COMPILER_LOADED AND OpenMP_Fortran_FOUND) if(NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_MODULE) set(OpenMP_Fortran_HAVE_OMPLIB_MODULE FALSE CACHE BOOL INTERNAL "") |