#
# This file is part of the GROMACS molecular simulation package.
#
-# Copyright (c) 2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019, by the GROMACS development team, led by
+# Copyright (c) 2009,2010,2011,2012,2013 by the GROMACS development team.
+# Copyright (c) 2014,2015,2016,2017,2018 by the GROMACS development team.
+# Copyright (c) 2019,2020,2021, by the GROMACS development team, led by
# Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
# and including many others, as listed in the AUTHORS file in the
# top-level source directory and at http://www.gromacs.org.
# To help us fund GROMACS development, we humbly ask that you cite
# the research papers on the package. Check out http://www.gromacs.org.
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+
# Test C flags FLAGS, and set VARIABLE to true if the work. Also add the
# flags to CFLAGSVAR.
MACRO(GMX_TEST_CFLAG VARIABLE FLAGS CFLAGSVAR)
ENDIF ()
ENDMACRO(GMX_TEST_CXXFLAG VARIABLE FLAGS CXXFLAGSVAR)
-# Set the real CMake variables for compiler flags. This should be a function
-# so we can have proper local variables while avoiding duplicating code.
-function(gmx_set_cmake_compiler_flags)
- foreach(language C CXX)
- # Copy the flags for the release build type to the build types
- # that are modified forms of it. Ideally, the list of build
- # types that are modifications of the Release build type would
- # be set up elsewhere and passed to this function, but it is
- # inconvenient in CMake to pass more than one list, and such a
- # list is only used here.
- foreach(build_type RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
- set(GMXC_${language}FLAGS_${build_type} "${GMXC_${language}FLAGS_RELEASE}" "${GMXC_${language}FLAGS_${build_type}}")
- endforeach()
- # Copy the flags that are only used by the real Release build
- # type. Used for, e.g., -Wno-array-bounds in Release to work around
- # gcc-4.8 being a little too vocal about some perfectly good code,
- # while using RelWithAssert (ie. without that suppression) in Jenkins.
- #
- # TODO check the behaviour of more recent gcc on the improved code
- set(GMXC_${language}FLAGS_RELEASE "${GMXC_${language}FLAGS_RELEASE}" "${GMXC_${language}FLAGS_RELEASE_ONLY}")
- endforeach()
+# Prepare some local variables so CUDA and non-CUDA code in targets
+# works the same way.
+function(gmx_target_compile_options_inner)
+ set(CFLAGS
+ ${SIMD_C_FLAGS}
+ ${MPI_C_COMPILE_OPTIONS}
+ ${EXTRA_C_FLAGS}
+ ${GMXC_CFLAGS}
+ PARENT_SCOPE)
+
+ # When SYCL support has been enabled (so the flag is non-empty), we still *disable* things
+ # by default to avoid running each file three passes through the compiler. Then we'll explicitly
+ # enable SYCL for the few files using it, as well as the linker.
+ set(CXXFLAGS
+ ${SIMD_CXX_FLAGS}
+ ${MPI_CXX_COMPILE_OPTIONS}
+ ${DISABLE_SYCL_CXX_FLAGS}
+ ${EXTRA_CXX_FLAGS}
+ ${GMXC_CXXFLAGS}
+ PARENT_SCOPE)
endfunction()
-# Add compiler flags expected for all GROMACS build configurations,
-# and those expected for the current CMake build type (e.g. Release)
-# to TARGET.
+# Implementation function to add compiler flags expected for all
+# GROMACS build configurations, and those expected for the current
+# CMake build type (e.g. Release) to TARGET. Other GROMACS CMake code
+# is expected to use either gmx_target_compile_options(name_of_target)
+# or gmx_cuda_target_compile_options(name_of_variable) because CUDA
+# compilation has special requirements.
#
# Most targets (ie. libraries, executables) need compiler flags that
# are characteristic of the build configuration. This function
# that setting will apply globally, which means it applies also to
# "external" code that the build of GROMACS might also build.
function(gmx_target_compile_options TARGET)
- if (NOT GMX_SKIP_DEFAULT_CFLAGS)
+ if (GMX_SKIP_DEFAULT_CFLAGS)
+ return()
+ endif()
+
+ # Prepare the generic compiler options
+ gmx_target_compile_options_inner()
+ target_compile_options(${TARGET}
+ PRIVATE
+ $<$<COMPILE_LANGUAGE:C>:${CFLAGS}>
+ $<$<COMPILE_LANGUAGE:CXX>:${CXXFLAGS}>
+ )
+ # Add compiler options for the build types
+ foreach(build_type ${build_types_with_explicit_flags})
+ target_compile_options(${TARGET}
+ BEFORE PRIVATE
+ $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:${build_type}>>:${GMXC_CFLAGS_${build_type}}>
+ $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:${build_type}>>:${GMXC_CXXFLAGS_${build_type}}>
+ )
+ endforeach()
+ # Add the release-configuration compiler options to build
+ # configurations that derive from it.
+ foreach(build_type RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
target_compile_options(${TARGET}
- PRIVATE
- $<$<COMPILE_LANGUAGE:C>:${SIMD_C_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_C_FLAGS};${GMXC_CFLAGS}>
- $<$<COMPILE_LANGUAGE:CXX>:${SIMD_CXX_FLAGS};${MPI_COMPILE_FLAGS};${EXTRA_CXX_FLAGS};${GMXC_CXXFLAGS}>
+ BEFORE PRIVATE
+ $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:${build_type}>>:${GMXC_CFLAGS_RELEASE}>
+ $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:${build_type}>>:${GMXC_CXXFLAGS_RELEASE}>
)
- foreach(build_type ${build_types_with_explicit_flags})
- target_compile_options(${TARGET}
- BEFORE PRIVATE
- $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:${build_type}>>:${GMXC_CFLAGS_${build_type}}>
- $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:${build_type}>>:${GMXC_CXXFLAGS_${build_type}}>
- )
- endforeach()
+ endforeach()
+ # Add those flags that we only want in the proper release build
+ # configuration.
+ target_compile_options(${TARGET}
+ BEFORE PRIVATE
+ $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>:${GMXC_CFLAGS_RELEASE_ONLY}>
+ $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>:${GMXC_CXXFLAGS_RELEASE_ONLY}>
+ )
+endfunction()
+
+# The approach taken by FindCUDA.cmake is to require that the compiler
+# flags are known and present in a variable before creating the target
+# for the library. (Those get embedded in files that are generated at
+# the point of calling cuda_add_library, which does not create a
+# target that one could later call target_compile_options upon.) So,
+# this function instead returns appropriate content in
+# ${VARIABLE_NAME}, along with other such variables that are
+# specialized for the various build_types. Hopefully this will improve
+# when we use native CUDA language support in our CMake.
+function(gmx_cuda_target_compile_options VARIABLE_NAME)
+ if (GMX_SKIP_DEFAULT_CFLAGS)
+ set (CXXFLAGS "")
+ else()
+ # Prepare the generic compiler options
+ gmx_target_compile_options_inner()
+ # CUDA headers issue lots of warnings when compiled with
+ # -Wundef because they use old-style #ifdef a lot. We'd prefer
+ # to have FindCUDA.cmake treat CUDA internal headers with
+ # -isystem so that these warnings are naturally suppressed,
+ # but there's no way to do that without bundling a modified
+ # form of FindCUDA.cmake. That creates its own problems,
+ # because people either don't know we do that, or don't
+ # remember that we don't do that in user tarballs.
+ #
+ # We have make check-source ensuring that we have included
+ # config.h any time we use such symbols in commits in a merge
+ # request. Local development could run that too. So, we can
+ # tolerate any remaining risk from accidentally using
+ # e.g. #ifdef GMX_MPI rather than #if GMX_MPI in CUDA source
+ # files.
+ #
+ # So we disable -Wundef by the simple hack of appending
+ # -Wno-undef after it. That's more maintainable than having
+ # logic to avoid adding -Wundef to GMXC_CXXFLAGS, given the
+ # current approach to adding them. Hopefully this will improve
+ # if/when we have more CMake object libraries, and/or native
+ # CUDA compilation.
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_NOUNDEF "-Wno-undef" CXXFLAGS)
endif()
+
+ # Only C++ compilation is supported with CUDA code in GROMACS
+ set(${VARIABLE_NAME} ${CXXFLAGS} PARENT_SCOPE)
+
+ # Now organize the flags for different build
+ # configurations. First, the debug configuration.
+ set(${VARIABLE_NAME}_DEBUG "${GMXC_CXXFLAGS_DEBUG}" PARENT_SCOPE)
+ # Add those flags that we only want in the proper release build
+ # configuration.
+ set(${VARIABLE_NAME}_RELEASE "${GMXC_CXXFLAGS_RELEASE};${GMXC_CXXFLAGS_RELEASE_ONLY}" PARENT_SCOPE)
+ # Add the release flags to build configurations that derive from it
+ foreach(build_type RELWITHDEBINFO RELWITHASSERT MINSIZEREL PROFILE)
+ set(${VARIABLE_NAME}_${build_type} "${GMXC_CXXFLAGS_RELEASE};${GMXC_CXXFLAGS_${build_type}}" PARENT_SCOPE)
+ endforeach()
endfunction()
# Add the WARNING_FLAG to the compile options for TARGET if the
endif()
if (GMX_COMPILER_WARNINGS)
GMX_TEST_CFLAG(CFLAGS_WARN "-Wall;-Wno-unused;-Wunused-value;-Wunused-parameter" GMXC_CFLAGS)
- GMX_TEST_CFLAG(CFLAGS_WARN_EXTRA "-Wextra;-Wno-missing-field-initializers;-Wno-sign-compare;-Wpointer-arith" GMXC_CFLAGS)
+ GMX_TEST_CFLAG(CFLAGS_WARN_EXTRA "-Wextra;-Wno-sign-compare;-Wpointer-arith" GMXC_CFLAGS)
GMX_TEST_CFLAG(CFLAGS_WARN_UNDEF "-Wundef" GMXC_CFLAGS)
GMX_TEST_CFLAG(CFLAGS_WARN_REL "-Wno-array-bounds" GMXC_CFLAGS_RELEASE_ONLY)
if(CYGWIN)
endif()
GMX_TEST_CFLAG(CFLAGS_STRINGOP_TRUNCATION "-Werror=stringop-truncation" GMXC_CFLAGS)
endif()
+ GMX_TEST_CFLAG(CFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS "-Wno-missing-field-initializers" GMXC_CFLAGS)
# new in gcc 4.5
GMX_TEST_CFLAG(CFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CFLAGS_RELEASE)
GMX_TEST_CFLAG(CFLAGS_COPT "-funroll-all-loops"
GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall" GMXC_CXXFLAGS)
# Problematic with CUDA
# GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EFFCXX "-Wnon-virtual-dtor" GMXC_CXXFLAGS)
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra;-Wno-missing-field-initializers;-Wpointer-arith;-Wmissing-declarations" GMXC_CXXFLAGS)
- # CUDA versions prior to 7.5 come with a header (math_functions.h) which uses the _MSC_VER macro
- # unconditionally, so we don't use -Wundef for earlier CUDA versions.
- if(NOT(GMX_GPU AND CUDA_VERSION VERSION_LESS "7.5"))
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN_UNDEF "-Wundef" GMXC_CXXFLAGS)
- endif()
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra;-Wpointer-arith;-Wmissing-declarations" GMXC_CXXFLAGS)
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_UNDEF "-Wundef" GMXC_CXXFLAGS)
GMX_TEST_CFLAG(CXXFLAGS_WARN_REL "-Wno-array-bounds" GMXC_CXXFLAGS_RELEASE_ONLY)
GMX_TEST_CXXFLAG(CXXFLAGS_STRINGOP_TRUNCATION "-Wstringop-truncation" GMXC_CXXFLAGS)
if (CXXFLAGS_STRINGOP_TRUNCATION)
set(CXXFLAGS_NO_STRINGOP_TRUNCATION "-Wno-stringop-truncation")
endif()
endif()
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS "-Wno-missing-field-initializers" GMXC_CXXFLAGS)
# new in gcc 4.5
GMX_TEST_CXXFLAG(CXXFLAGS_EXCESS_PREC "-fexcess-precision=fast" GMXC_CXXFLAGS_RELEASE)
GMX_TEST_CXXFLAG(CXXFLAGS_COPT "-funroll-all-loops"
GMX_TEST_CXXFLAG(CXXFLAGS_NOINLINE "-fno-inline" GMXC_CXXFLAGS_DEBUG)
endif()
- # icc
- if (CMAKE_C_COMPILER_ID MATCHES "Intel")
- if (NOT WIN32)
- if(NOT GMX_OPENMP)
-# 3180: unrecognized OpenMP #pragma
- GMX_TEST_CFLAG(CFLAGS_PRAGMA "-wd3180" GMXC_CFLAGS)
- endif()
- if (GMX_COMPILER_WARNINGS)
-# -w3 enables a lot of useful diagnostics but we don't care about all. -wd disables some selectively.
-# 177: function/variable ".." was declared but never referenced
-# 411: class defines no constructor to initialize the following (incorrect for struct, initializer list works)
-# 593: variable ".." was set but never used
-# 981: operands are evaluated in unspecified order
-#1418: external function definition with no prior declaration
-#1419: external declaration in primary source file
-#1572: floating-point equality and inequality comparisons are unreliable
-#1599: declaration hides variable ".."
-#2259: non-pointer conversion from ".." to ".." may lose significant bits
-#2415: variable ".." of static storage duration was declared but never referenced
-#2547: ".." was specified as both a system and non-system include directory
-#2557: comparison between signed and unsigned operands
-#3280: declaration hides member ".."
-#11074: Inlining inhibited by limit max-size(/max-total-size)
-#11076: To get full report use -opt-report=3 -opt-report-phase ipo (shown for previous remark)
- GMX_TEST_CFLAG(CFLAGS_WARN "-w3;-wd177;-wd411;-wd593;-wd981;-wd1418;-wd1419;-wd1572;-wd1599;-wd2259;-wd2415;-wd2547;-wd2557;-wd3280;-wd11074;-wd11076" GMXC_CFLAGS)
- endif()
- GMX_TEST_CFLAG(CFLAGS_STDGNU "-std=gnu99" GMXC_CFLAGS)
- GMX_TEST_CFLAG(CFLAGS_OPT "-ip;-funroll-all-loops;-alias-const;-ansi-alias;-no-prec-div;-fimf-domain-exclusion=14;-qoverride-limits" GMXC_CFLAGS_RELEASE)
- GMX_TEST_CFLAG(CFLAGS_DEBUG "-O0" GMXC_CFLAGS_DEBUG) #icc defaults to -O2 even with -g
- # The "except" fp-model requires something other than the
- # default "fast" model, so we test and use it with
- # "precise".
- GMX_TEST_CFLAG(CFLAGS_FP_MODEL_RELASSERT "-fp-model=except;-fp-model=precise" GMXC_CFLAGS_RELWITHASSERT)
- else()
- if(NOT GMX_OPENMP)
- GMX_TEST_CFLAG(CFLAGS_PRAGMA "/wd3180" GMXC_CFLAGS)
- endif()
- if (GMX_COMPILER_WARNINGS)
-#only on Windows
-#161: unrecognized pragma
-#1786 function was declared deprecated (is issued for stdlib function such as strncpy which have a _s version)
-GMX_TEST_CFLAG(CFLAGS_WARN "/W3;/wd161;/wd177;/wd411;/wd593;/wd981;/wd1418;/wd1419;/wd1572;/wd1599;/wd1786;/wd2259;/wd2415;/wd2547;/wd2557;/wd3280" GMXC_CFLAGS)
- endif()
- GMX_TEST_CFLAG(CFLAGS_OPT "/Qip" GMXC_CFLAGS_RELEASE)
- endif()
- endif()
-
- if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
- if (NOT WIN32)
- if(NOT GMX_OPENMP)
- GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-wd3180" GMXC_CXXFLAGS)
- endif()
- if (GMX_COMPILER_WARNINGS)
-#All but the following warnings are identical for the C-compiler (see above)
-# 304: access control not specified
-# 383: value copied to temporary, reference to temporary used
-# 444: destructor for base class ".." is not virtual
-# 869: was never referenced (false positives)
-#2282: unrecognized GCC pragma
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-w3;-wd177;-wd304;-wd383;-wd411;-wd444;-wd869;-wd981;-wd1418;-wd1572;-wd1599;-wd2259;-wd2547;-wd3280;-wd11074;-wd11076;-wd2282" GMXC_CXXFLAGS)
- endif()
- GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-ip;-funroll-all-loops;-alias-const;-ansi-alias;-no-prec-div;-fimf-domain-exclusion=14;-qoverride-limits" GMXC_CXXFLAGS_RELEASE)
- GMX_TEST_CXXFLAG(CXXFLAGS_DEBUG "-O0" GMXC_CXXFLAGS_DEBUG)
- # The "except" fp-model requires something other than the
- # default "fast" model, so we test and use it with
- # "precise".
- GMX_TEST_CXXFLAG(CXXFLAGS_FP_MODEL_RELASSERT "-fp-model=except;-fp-model=precise" GMXC_CXXFLAGS_RELWITHASSERT)
- else()
- if(NOT GMX_OPENMP)
- GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "/wd3180" GMXC_CFLAGS)
- endif()
- if (GMX_COMPILER_WARNINGS)
-#161: unrecognized pragma
-#809: exception specification for virtual function X is incompatible with that of overridden function
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/W3;/wd161;/wd177;/wd304;/wd383;/wd411;/wd444;/wd809;/wd869;/wd981;/wd1418;/wd1572;/wd1599;/wd1786;/wd2259;/wd2547;/wd3280;/wd11074;/wd11076;/wd2282" GMXC_CXXFLAGS)
- endif()
- GMX_TEST_CXXFLAG(CXXFLAGS_OPT "/Qip" GMXC_CXXFLAGS_RELEASE)
- endif()
- endif()
-
# PGI
# Inter-procedural analysis causes pgcc/pgc++ to crash when linking the library with PGI release 15.7.
if (CMAKE_C_COMPILER_ID MATCHES "PGI")
# "this" in initializer list
# deprecated (posix, secure) functions
# C4305: truncation (double -> float)
- # C4244: conversion from 'double' to 'real', possible loss of data
+ # C4244: conversion from '.*' to '.*', possible loss of data
# unreferenced local variable (only C)
# C4267: conversion from 'size_t' to 'int', possible loss of data
# conversion from 'const char*' to 'void*', different 'const' qualifiers (only C)
# unknown pragma (4068)
+ # remark #280: selector expression is constant
if(NOT CMAKE_CONFIGURATION_TYPES)
- GMX_TEST_CFLAG(CFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4101;/wd4267;/wd4090;/wd4068" GMXC_CFLAGS)
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4267;/wd4068" GMXC_CXXFLAGS)
+ GMX_TEST_CFLAG(CFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4101;/wd4267;/wd4090;/wd4068;" GMXC_CFLAGS)
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4267;/wd4068;" GMXC_CXXFLAGS)
else() # MSVC projects only use the C++ flags
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4101;/wd4267;/wd4090;/wd4068" GMXC_CXXFLAGS)
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN "/wd4800;/wd4355;/wd4996;/wd4305;/wd4244;/wd4101;/wd4267;/wd4090;/wd4068;" GMXC_CXXFLAGS)
endif()
+ GMX_TEST_CXXFLAG(CXXFLAGS_LANG "/permissive-" GMXC_CXXFLAGS)
endif()
- if (CMAKE_C_COMPILER_ID MATCHES "Clang")
+ if (CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_C_COMPILER_ID MATCHES "IntelLLVM")
if(NOT GMX_OPENMP)
GMX_TEST_CFLAG(CFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CFLAGS)
endif()
GMX_TEST_CFLAG(CFLAGS_WARN "-Wall;-Wno-unused;-Wunused-value;-Wunused-parameter" GMXC_CFLAGS)
GMX_TEST_CFLAG(CFLAGS_WARN_EXTRA "-Wpointer-arith" GMXC_CFLAGS_EXTRA)
endif()
+ GMX_TEST_CFLAG(CFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS "-Wno-missing-field-initializers" GMXC_CFLAGS)
endif()
- if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "IntelLLVM")
if (GMX_COMPILER_WARNINGS)
# If used, -Wall should precede other options that silence warnings it enables
GMX_TEST_CXXFLAG(CXXFLAGS_WARN "-Wall" GMXC_CXXFLAGS)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0") #LLVM BUG #21629
GMX_TEST_CXXFLAG(CXXFLAGS_WARN_NO_BRACES "-Wno-missing-braces" GMXC_CXXFLAGS)
endif()
- GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra;-Wno-missing-field-initializers;-Wpointer-arith;-Wmissing-prototypes" GMXC_CXXFLAGS)
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_EXTRA "-Wextra;-Wpointer-arith;-Wmissing-prototypes" GMXC_CXXFLAGS)
GMX_TEST_CXXFLAG(CXXFLAGS_DEPRECATED "-Wdeprecated" GMXC_CXXFLAGS)
+ # Functions placed in headers for inlining are not always
+ # used in every translation unit that includes the files,
+ # so we must disable the warning that there are such
+ # functions that are unused.
+ GMX_TEST_CXXFLAG(CXXFLAGS_NO_UNUSED_FUNCTION "-Wno-unused-function" GMXC_CXXFLAGS)
endif()
if(NOT GMX_OPENMP)
GMX_TEST_CXXFLAG(CXXFLAGS_PRAGMA "-Wno-unknown-pragmas" GMXC_CXXFLAGS)
endif()
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_NO_RESERVED_IDENTIFIER "-Wno-reserved-identifier" GMXC_CXXFLAGS) # LLVM BUG #50644
+ GMX_TEST_CXXFLAG(CXXFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS "-Wno-missing-field-initializers" GMXC_CXXFLAGS)
+ # Some versions of Intel ICPX compiler (at least 2021.1.1 to 2021.3.0) fail to unroll a loop
+ # in sycl::accessor::__init, and emit -Wpass-failed=transform-warning. This is a useful
+ # warning, but mostly noise right now. Probably related to using shared memory accessors.
+ # Note: not a typo: ICPX 2021.1.1 has GMX_INTEL_LLVM_VERSION 202110; 2021.2.0 has 20210200.
+ if(GMX_INTEL_LLVM AND GMX_INTEL_LLVM_VERSION GREATER_EQUAL 202110)
+ GMX_TEST_CXXFLAG(CXXFLAGS_NO_UNROLL_WARNING "-Wno-pass-failed" GMXC_CXXFLAGS)
+ endif()
endif()
- # Fujitsu compilers on PrimeHPC/Sparc64
- if(${CMAKE_C_COMPILER_ID} MATCHES Fujitsu OR
- (${CMAKE_C_COMPILER_ID} MATCHES unknown AND ${CMAKE_C_COMPILER} MATCHES ^fcc))
- GMX_TEST_CFLAG(CFLAG_GNUCOMPAT "-Xg;-w" GMXC_CFLAGS)
- GMX_TEST_CFLAG(CFLAG_OPT "-Kfast,reduction,swp,simd=2,uxsimd,fsimple;-x100" GMXC_CFLAGS)
+ # Apple bastardized version of Clang
+ if(${CMAKE_C_COMPILER_ID} MATCHES "AppleClang")
+ if(${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 11.0)
+ # Mac OS Catalina ships with a horribly broken compiler (version 11.0.0.11000033)
+ # that checks stack alignment by default, but their own C library
+ # does not align the stack properly. Embarrassing, Apple...
+ GMX_TEST_CFLAG(CFLAG_NO_STACK_CHECK "-fno-stack-check" GMXC_CFLAGS)
+ endif()
endif()
- if(${CMAKE_CXX_COMPILER_ID} MATCHES Fujitsu OR
- (${CMAKE_CXX_COMPILER_ID} MATCHES unknown AND ${CMAKE_CXX_COMPILER} MATCHES ^FCC))
- GMX_TEST_CXXFLAG(CXXFLAG_GNUCOMPAT "-Xg;-w" GMXC_CXXFLAGS)
- GMX_TEST_CXXFLAG(CXXFLAG_OPT "-Kfast,reduction,swp,simd=2,uxsimd,fsimple;-x100" GMXC_CXXFLAGS)
+ if(${CMAKE_CXX_COMPILER_ID} MATCHES "AppleClang")
+ if(${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER 11.0)
+ # Mac OS Catalina ships with a horribly broken compiler (version 11.0.0.11000033)
+ # that checks stack alignment by default, but their own C library
+ # does not align the stack properly. Embarrassing, Apple...
+ GMX_TEST_CXXFLAG(CXXFLAG_NO_STACK_CHECK "-fno-stack-check" GMXC_CXXFLAGS)
+ endif()
endif()
- # now actually set the flags:
- if (NOT GMX_SKIP_DEFAULT_CFLAGS)
- gmx_set_cmake_compiler_flags()
+ # Apple bastardized version of Clang
+ if(${CMAKE_C_COMPILER_ID} MATCHES "AppleClang")
+ if(${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 11.0)
+ # Mac OS Catalina ships with a horribly broken compiler (version 11.0.0.11000033)
+ # that checks stack alignment by default, but their own C library
+ # does not align the stack properly. Embarrassing, Apple...
+ GMX_TEST_CFLAG(CFLAG_NO_STACK_CHECK "-fno-stack-check" GMXC_CFLAGS)
+ endif()
+ endif()
+
+ if(${CMAKE_CXX_COMPILER_ID} MATCHES "AppleClang")
+ if(${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER 11.0)
+ # Mac OS Catalina ships with a horribly broken compiler (version 11.0.0.11000033)
+ # that checks stack alignment by default, but their own C library
+ # does not align the stack properly. Embarrassing, Apple...
+ GMX_TEST_CXXFLAG(CXXFLAG_NO_STACK_CHECK "-fno-stack-check" GMXC_CXXFLAGS)
+ endif()
endif()
endmacro()
+
+# Make sure we generate warnings (and hopefully fix) "everything"
+# reported by compilers that support that (ie recent clang and its
+# derivatives).
+function(gmx_warn_on_everything target)
+
+ # If the compiler suports warning on "everything" then we'll turn
+ # it on. Note that all warnings become errors for developer
+ # builds, but not for user builds.
+ gmx_target_warning_suppression(${target} "-Weverything" HAS_WARNING_EVERYTHING)
+
+ if (NOT HAS_WARNING_EVERYTHING)
+ # There's no need to suppress aspects of "-Weverything" if
+ # that warning is not supported.
+ return()
+ endif()
+
+ # We don't actually fix everything, so list the exceptions that we
+ # choose to make. We may be able to eliminate some of these over
+ # time.
+ #
+ # We check whether the flag is accepted first, so that we suppress
+ # such warnings also with compilers that don't directly identify
+ # as e.g. clang despite being based on it (e.g. most vendor
+ # compilers), and also don't fail to compile GROMACS when future
+ # versions of any such compiler changes how the warnings
+ # look/work.
+
+ # We have no intention of C++98 compability
+ gmx_target_warning_suppression(${target} "-Wno-c++98-compat" HAS_WARNING_NO_CPLUSPLUS98_COMPAT)
+ gmx_target_warning_suppression(${target} "-Wno-c++98-compat-pedantic" HAS_WARNING_NO_CPLUSPLUS98_COMPAT_PEDANTIC)
+
+ # Don't warn for use of OpenMP pragmas in no-omp build
+ gmx_target_warning_suppression(${target} "-Wno-source-uses-openmp" HAS_WARNING_NO_SOURCE_USED_OPENMP)
+
+ # Allowed in attributes (compilers are required to ignore unknown attributes)
+ gmx_target_warning_suppression(${target} "-Wno-c++17-extensions" HAS_WARNING_NO_CPLUSPLUS17_EXTENSIONS)
+
+ # Custom Doxygen commands are used
+ gmx_target_warning_suppression(${target} "-Wno-documentation-unknown-command" HAS_WARNING_NO_DOCUMENTATION_UNKNOWN_COMMAND)
+
+ # We need to use default labels in switch statements, because GCC gives
+ # maybe-uninitialized without default label and checks for illegal enum values.
+ gmx_target_warning_suppression(${target} "-Wno-covered-switch-default" HAS_WARNING_NO_COVERED_SWITCH_DEFAULT)
+
+ # Default statement for enum is OK.
+ # It's OK to not have branches for Count members of enum classes
+ gmx_target_warning_suppression(${target} "-Wno-switch-enum" HAS_WARNING_NO_SWITCH_ENUM)
+
+ # We need to use macros like
+ # GMX_CATCH_ALL_AND_EXIT_WITH_FATAL_ERROR and
+ # CLANG_DIAGNOSTIC_IGNORE. Those will look strange if they don't
+ # have a semicolon after them, and might confuse tools like IDEs
+ # also.
+ gmx_target_warning_suppression(${target} "-Wno-extra-semi-stmt" HAS_WARNING_NO_EXTRA_SEMI_STMT)
+
+ # We intend to use fully inline classes with virtual methods
+ gmx_target_warning_suppression(${target} "-Wno-weak-vtables" HAS_WARNING_NO_WEAK_VTABLES)
+
+ # We intend to use constructor arguments that shadow member variables
+ gmx_target_warning_suppression(${target} "-Wno-shadow" HAS_WARNING_NO_SHADOW)
+
+ # Padding of structs is routine, we don't need to hear about it
+ gmx_target_warning_suppression(${target} "-Wno-padded" HAS_WARNING_NO_PADDED)
+
+ # Our uses of double underscores in macro names are OK
+ gmx_target_warning_suppression(${target} "-Wno-reserved-id-macro" HAS_WARNING_NO_RESERVED_ID_MACRO)
+
+ # Implicit conversion of float to double is fine
+ gmx_target_warning_suppression(${target} "-Wno-double-promotion" HAS_WARNING_NO_DOUBLE_PROMOTION)
+
+ # No resources in static variables need exit-time destructors
+ gmx_target_warning_suppression(${target} "-Wno-exit-time-destructors" HAS_WARNING_NO_EXIT_TIME_DESTRUCTORS)
+
+ # Global constructors are not needed
+ gmx_target_warning_suppression(${target} "-Wno-global-constructors" HAS_WARNING_NO_GLOBAL_CONSTRUCTORS)
+
+ # False positives are emitted
+ gmx_target_warning_suppression(${target} "-Wno-documentation" HAS_WARNING_NO_DOCUMENTATION)
+
+ # We intend to use format strings that we construct, even though that is a security risk
+ gmx_target_warning_suppression(${target} "-Wno-format-nonliteral" HAS_WARNING_NO_FORMAT_NONLITERAL)
+
+ # We do a lot of conditional compilation that sometimes uses a symbol and sometimes does not
+ gmx_target_warning_suppression(${target} "-Wno-used-but-marked-unused" HAS_WARNING_NO_USED_BUT_MARKED_UNUSED)
+
+ # It's only risky to compare floats for equality when they are the
+ # result of computation. Unfortunately it's hard to tell the
+ # difference and there's no good way to suppress this on a
+ # case-by-base basis.
+ gmx_target_warning_suppression(${target} "-Wno-float-equal" HAS_WARNING_NO_FLOAT_EQUAL)
+
+ #
+ # Exceptions we should consider fixing
+ #
+
+ # Much code in gmxana uses complex logic that may or may not be valid
+ gmx_target_warning_suppression(${target} "-Wno-conditional-uninitialized" HAS_WARNING_CONDITIONAL_UNINITIALIZED)
+
+ # We have many places implicit conversions still occur, most of which need fixing
+ gmx_target_warning_suppression(${target} "-Wno-conversion" HAS_WARNING_NO_CONVERSION)
+
+ # We use the Linux signal handlers in the intended way, but it triggers this warning.
+ # It would be better to localize this exception.
+ gmx_target_warning_suppression(${target} "-Wno-disabled-macro-expansion" HAS_WARNING_NO_DISABLED_MACRO_EXPANSION)
+
+ # The NBNXM simd kernels define lots of macros that are not used
+ # It would be better to localize this exception.
+ gmx_target_warning_suppression(${target} "-Wno-unused-macros" HAS_WARNING_NO_UNUSED_MACROS)
+
+endfunction()
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff