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Revert "[Flang] Move builtin .mod generation into runtimes (Reapply #137828) (#169638)"

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This reverts commit 7675fc79c802cf7f6a95660f6ee59bf6cb62102f.

Requested in PR:
https://github.com/llvm/llvm-project/pull/169638#issuecomment-3634227707
This commit is contained in:
Michael Kruse 2025-12-09 22:36:44 +01:00
parent 3310c0be58
commit d233e787f0
70 changed files with 596 additions and 878 deletions
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4
clang/include/clang/Driver/ToolChain.h
View File

@ -538,10 +538,6 @@ public:
// Returns Triple without the OSs version.
llvm::Triple getTripleWithoutOSVersion() const;
/// Returns the target-specific path for Flang's intrinsic modules in the
/// resource directory if it exists.
std::optional<std::string> getDefaultIntrinsicModuleDir() const;
// Returns the target specific runtime path if it exists.
std::optional<std::string> getRuntimePath() const;

2
clang/include/clang/Options/Options.td
View File

@ -6124,7 +6124,7 @@ def prebind : Flag<["-"], "prebind">;
def preload : Flag<["-"], "preload">;
def print_file_name_EQ : Joined<["-", "--"], "print-file-name=">,
HelpText<"Print the full library path of <file>">, MetaVarName<"<file>">,
Visibility<[ClangOption, FlangOption, CLOption]>;
Visibility<[ClangOption, CLOption]>;
def print_ivar_layout : Flag<["-"], "print-ivar-layout">,
Visibility<[ClangOption, CC1Option]>,
HelpText<"Enable Objective-C Ivar layout bitmap print trace">,

11
clang/lib/Driver/Driver.cpp
View File

@ -6607,17 +6607,6 @@ std::string Driver::GetFilePath(StringRef Name, const ToolChain &TC) const {
if (llvm::sys::fs::exists(Twine(P)))
return std::string(P);
// With Flang, also look for instrinsic modules
if (IsFlangMode()) {
if (std::optional<std::string> IntrPath =
TC.getDefaultIntrinsicModuleDir()) {
SmallString<128> P(*IntrPath);
llvm::sys::path::append(P, Name);
if (llvm::sys::fs::exists(Twine(P)))
return std::string(P);
}
}
SmallString<128> D(Dir);
llvm::sys::path::append(D, "..", Name);
if (llvm::sys::fs::exists(Twine(D)))

6
clang/lib/Driver/ToolChain.cpp
View File

@ -1020,12 +1020,6 @@ ToolChain::getTargetSubDirPath(StringRef BaseDir) const {
return {};
}
std::optional<std::string> ToolChain::getDefaultIntrinsicModuleDir() const {
SmallString<128> P(D.ResourceDir);
llvm::sys::path::append(P, "finclude", "flang");
return getTargetSubDirPath(P);
}
std::optional<std::string> ToolChain::getRuntimePath() const {
SmallString<128> P(D.ResourceDir);
llvm::sys::path::append(P, "lib");

3
clang/lib/Driver/ToolChains/AMDGPU.cpp
View File

@ -858,8 +858,7 @@ void AMDGPUToolChain::addClangTargetOptions(
// Default to "hidden" visibility, as object level linking will not be
// supported for the foreseeable future.
if (!DriverArgs.hasArg(options::OPT_fvisibility_EQ,
options::OPT_fvisibility_ms_compat) &&
!getDriver().IsFlangMode()) {
options::OPT_fvisibility_ms_compat)) {
CC1Args.push_back("-fvisibility=hidden");
CC1Args.push_back("-fapply-global-visibility-to-externs");
}

8
clang/lib/Driver/ToolChains/Flang.cpp
View File

@ -1069,14 +1069,6 @@ void Flang::ConstructJob(Compilation &C, const JobAction &JA,
CmdArgs.push_back("-resource-dir");
CmdArgs.push_back(D.ResourceDir.c_str());
// Default intrinsic module dirs must be added after any user-provided
// -fintrinsic-modules-path to have lower precedence
if (std::optional<std::string> IntrModPath =
TC.getDefaultIntrinsicModuleDir()) {
CmdArgs.push_back("-fintrinsic-modules-path");
CmdArgs.push_back(Args.MakeArgString(*IntrModPath));
}
// Offloading related options
addOffloadOptions(C, Inputs, JA, Args, CmdArgs);

3
clang/lib/Driver/ToolChains/HIPAMD.cpp
View File

@ -274,8 +274,7 @@ void HIPAMDToolChain::addClangTargetOptions(
// Default to "hidden" visibility, as object level linking will not be
// supported for the foreseeable future.
if (!DriverArgs.hasArg(options::OPT_fvisibility_EQ,
options::OPT_fvisibility_ms_compat) &&
!getDriver().IsFlangMode()) {
options::OPT_fvisibility_ms_compat)) {
CC1Args.append({"-fvisibility=hidden"});
CC1Args.push_back("-fapply-global-visibility-to-externs");
}

3
clang/lib/Driver/ToolChains/HIPSPV.cpp
View File

@ -143,8 +143,7 @@ void HIPSPVToolChain::addClangTargetOptions(
// Default to "hidden" visibility, as object level linking will not be
// supported for the foreseeable future.
if (!DriverArgs.hasArg(options::OPT_fvisibility_EQ,
options::OPT_fvisibility_ms_compat) &&
!getDriver().IsFlangMode())
options::OPT_fvisibility_ms_compat))
CC1Args.append(
{"-fvisibility=hidden", "-fapply-global-visibility-to-externs"});

122
flang-rt/CMakeLists.txt
View File

@ -23,6 +23,40 @@ set(FLANG_RT_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
set(FLANG_RT_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}")
set(FLANG_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../flang")
# CMake 3.24 is the first version of CMake that directly recognizes Flang.
# LLVM's requirement is only CMake 3.20, teach CMake 3.20-3.23 how to use Flang.
if (CMAKE_VERSION VERSION_LESS "3.24")
cmake_path(GET CMAKE_Fortran_COMPILER STEM _Fortran_COMPILER_STEM)
if (_Fortran_COMPILER_STEM STREQUAL "flang-new" OR _Fortran_COMPILER_STEM STREQUAL "flang")
include(CMakeForceCompiler)
CMAKE_FORCE_Fortran_COMPILER("${CMAKE_Fortran_COMPILER}" "LLVMFlang")
set(CMAKE_Fortran_COMPILER_ID "LLVMFlang")
set(CMAKE_Fortran_COMPILER_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}")
set(CMAKE_Fortran_SUBMODULE_SEP "-")
set(CMAKE_Fortran_SUBMODULE_EXT ".mod")
set(CMAKE_Fortran_PREPROCESS_SOURCE
"<CMAKE_Fortran_COMPILER> -cpp <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
set(CMAKE_Fortran_FORMAT_FIXED_FLAG "-ffixed-form")
set(CMAKE_Fortran_FORMAT_FREE_FLAG "-ffree-form")
set(CMAKE_Fortran_MODDIR_FLAG "-module-dir")
set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_ON "-cpp")
set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF "-nocpp")
set(CMAKE_Fortran_POSTPROCESS_FLAG "-ffixed-line-length-72")
set(CMAKE_Fortran_COMPILE_OPTIONS_TARGET "--target=")
set(CMAKE_Fortran_LINKER_WRAPPER_FLAG "-Wl,")
set(CMAKE_Fortran_LINKER_WRAPPER_FLAG_SEP ",")
endif ()
endif ()
enable_language(Fortran)
list(APPEND CMAKE_MODULE_PATH
"${FLANG_RT_SOURCE_DIR}/cmake/modules"
@ -31,22 +65,69 @@ list(APPEND CMAKE_MODULE_PATH
include(AddFlangRT)
include(GetToolchainDirs)
include(FlangCommon)
include(FlangRTIntrospection)
include(HandleCompilerRT)
include(ExtendPath)
include(CheckFortranSourceCompiles)
include(CMakePushCheckState)
############################
# Build Mode Introspection #
############################
# Determine whether we are in the runtimes/runtimes-bins directory of a
# bootstrap build.
set(LLVM_TREE_AVAILABLE OFF)
if (LLVM_LIBRARY_OUTPUT_INTDIR AND LLVM_RUNTIME_OUTPUT_INTDIR AND PACKAGE_VERSION)
set(LLVM_TREE_AVAILABLE ON)
endif()
# Path to LLVM development tools (FileCheck, llvm-lit, not, ...)
set(LLVM_TOOLS_DIR "${LLVM_BINARY_DIR}/bin")
# Fortran compiler not optional for building Flang-RT
enable_language(Fortran)
# Determine build and install paths.
# The build path is absolute, but the install dir is relative, CMake's install
# command has to apply CMAKE_INSTALL_PREFIX itself.
get_toolchain_library_subdir(toolchain_lib_subdir)
if (LLVM_TREE_AVAILABLE)
# In a bootstrap build emit the libraries into a default search path in the
# build directory of the just-built compiler. This allows using the
# just-built compiler without specifying paths to runtime libraries.
#
# Despite Clang in the name, get_clang_resource_dir does not depend on Clang
# being added to the build. Flang uses the same resource dir as clang.
include(GetClangResourceDir)
get_clang_resource_dir(FLANG_RT_OUTPUT_RESOURCE_DIR PREFIX "${LLVM_LIBRARY_OUTPUT_INTDIR}/..")
get_clang_resource_dir(FLANG_RT_INSTALL_RESOURCE_PATH_DEFAULT)
extend_path(FLANG_RT_OUTPUT_RESOURCE_LIB_DIR "${FLANG_RT_OUTPUT_RESOURCE_DIR}" "${toolchain_lib_subdir}")
else ()
# In a standalone runtimes build, do not write into LLVM_BINARY_DIR. It may be
# read-only and/or shared by multiple runtimes with different build
# configurations (e.g. Debug/Release). Use the runtime's own lib dir like any
# non-toolchain library.
# For the install prefix, still use the resource dir assuming that Flang will
# be installed there using the same prefix. This is to not have a difference
# between bootstrap and standalone runtimes builds.
set(FLANG_RT_OUTPUT_RESOURCE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
set(FLANG_RT_INSTALL_RESOURCE_PATH_DEFAULT "lib${LLVM_LIBDIR_SUFFIX}/clang/${LLVM_VERSION_MAJOR}")
extend_path(FLANG_RT_OUTPUT_RESOURCE_LIB_DIR "${FLANG_RT_OUTPUT_RESOURCE_DIR}" "lib${LLVM_LIBDIR_SUFFIX}")
endif ()
set(FLANG_RT_INSTALL_RESOURCE_PATH "${FLANG_RT_INSTALL_RESOURCE_PATH_DEFAULT}"
CACHE PATH "Path to install runtime libraries to (default: clang resource dir)")
extend_path(FLANG_RT_INSTALL_RESOURCE_LIB_PATH "${FLANG_RT_INSTALL_RESOURCE_PATH}" "${toolchain_lib_subdir}")
cmake_path(NORMAL_PATH FLANG_RT_OUTPUT_RESOURCE_DIR)
cmake_path(NORMAL_PATH FLANG_RT_INSTALL_RESOURCE_PATH)
# FIXME: For the libflang_rt.so, the toolchain resource lib dir is not a good
# destination because it is not a ld.so default search path.
# The machine where the executable is eventually executed may not be the
# machine where the Flang compiler and its resource dir is installed, so
# setting RPath by the driver is not an solution. It should belong into
# /usr/lib/<triple>/libflang_rt.so, like e.g. libgcc_s.so.
# But the linker as invoked by the Flang driver also requires
# libflang_rt.so to be found when linking and the resource lib dir is
# the only reliable location.
cmake_path(NORMAL_PATH FLANG_RT_OUTPUT_RESOURCE_LIB_DIR)
cmake_path(NORMAL_PATH FLANG_RT_INSTALL_RESOURCE_LIB_PATH)
#################
@ -56,6 +137,8 @@ enable_language(Fortran)
# Important: flang-rt user options must be prefixed with "FLANG_RT_". Variables
# with this prefix will be forwarded in bootstrap builds.
option(FLANG_RT_INCLUDE_TESTS "Generate build targets for the flang-rt unit and regression-tests." "${LLVM_INCLUDE_TESTS}")
# Provide an interface to link against the LLVM libc/libc++ projects directly.
set(FLANG_RT_SUPPORTED_PROVIDERS system llvm)
set(FLANG_RT_LIBC_PROVIDER "system" CACHE STRING "Specify C library to use. Supported values are ${FLANG_RT_SUPPORTED_PROVIDERS}.")
@ -68,14 +151,7 @@ if (NOT "${FLANG_RT_LIBCXX_PROVIDER}" IN_LIST FLANG_RT_SUPPORTED_PROVIDERS)
message(FATAL_ERROR "Unsupported library: '${FLANG_RT_LIBCXX_PROVIDER}'. Supported values are ${FLANG_RT_SUPPORTED_PROVIDERS}.")
endif ()
if (LLVM_RUNTIMES_TARGET MATCHES "^amdgcn|^nvptx")
# Compiling libraries for offload targets is currently experimental;
# Only build the builtin modules by default.
set(FLANG_RT_ENABLE_STATIC_default OFF)
else ()
set(FLANG_RT_ENABLE_STATIC_default ON)
endif ()
option(FLANG_RT_ENABLE_STATIC "Build Flang-RT as a static library." "${FLANG_RT_ENABLE_STATIC_default}")
option(FLANG_RT_ENABLE_STATIC "Build Flang-RT as a static library." ON)
if (WIN32)
# Windows DLL currently not implemented.
set(FLANG_RT_ENABLE_SHARED OFF)
@ -88,14 +164,11 @@ else ()
# breaking change unless the driver is changed.
option(FLANG_RT_ENABLE_SHARED "Build Flang-RT as a shared library." OFF)
endif ()
if (FLANG_RT_ENABLE_STATIC OR FLANG_RT_ENABLE_SHARED)
option(FLANG_RT_INCLUDE_TESTS "Generate build targets for the flang-rt unit and regression-tests." "${LLVM_INCLUDE_TESTS}")
else ()
# Tests require at least one of the libraries
message(STATUS "Flang-RT testing disabled without either FLANG_RT_ENABLE_STATIC OR FLANG_RT_ENABLE_SHARED")
set(FLANG_RT_INCLUDE_TESTS OFF)
if (NOT FLANG_RT_ENABLE_STATIC AND NOT FLANG_RT_ENABLE_SHARED)
message(FATAL_ERROR "
Must build at least one type of library
(FLANG_RT_ENABLE_STATIC=ON, FLANG_RT_ENABLE_SHARED=ON, or both)
")
endif ()
@ -113,7 +186,7 @@ elseif (FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT STREQUAL "CUDA")
option(FLANG_RT_CUDA_RUNTIME_PTX_WITHOUT_GLOBAL_VARS "Do not compile global variables' definitions when producing PTX library" OFF)
elseif (FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT STREQUAL "OpenMP")
# Support for OpenMP offloading
set(FLANG_RT_DEVICE_ARCHITECTURES "${RUNTIMES_DEVICE_ARCHITECTURES}" CACHE STRING
set(FLANG_RT_DEVICE_ARCHITECTURES "all" CACHE STRING
"List of OpenMP device architectures to be used to compile the Fortran runtime (e.g. 'gfx1103;sm_90')"
)
@ -161,10 +234,6 @@ check_cxx_source_compiles(
"
HAVE_DECL_STRERROR_S)
# Look for support of REAL(16), if not already defined via command
# line via -DFORTRAN_SUPPORTS_REAL16=YES/NO
check_fortran_quadmath_support()
# Search for clang_rt.builtins library. Need in addition to msvcrt.
if (WIN32)
find_compiler_rt_library(builtins FLANG_RT_BUILTINS_LIBRARY)
@ -262,7 +331,6 @@ else ()
add_custom_target(check-flang-rt)
endif()
###################
# Install headers #
###################

38
flang-rt/cmake/modules/AddFlangRT.cmake
View File

@ -94,10 +94,6 @@ function (add_flangrt_library name)
set(build_object ON)
elseif (build_static AND build_shared)
set(build_object ON)
elseif (NOT build_static AND NOT build_shared)
# If not building a library, still build the object files
# Needed to generate the .mod files as byproduct
set(build_object ON)
endif ()
# srctargets: targets that contain source files
@ -172,18 +168,14 @@ function (add_flangrt_library name)
if (BUILD_SHARED_LIBS)
if (build_shared)
set(default_target "${name_shared}")
elseif (build_static)
set(default_target "${name_static}")
else ()
set(default_target "${name_object}")
set(default_target "${name_static}")
endif ()
else ()
if (build_static)
set(default_target "${name_static}")
elseif (build_shared)
set(default_target "${name_shared}")
else ()
set(default_target "${name_object}")
set(default_target "${name_shared}")
endif ()
endif ()
add_library(${name}.default ALIAS "${default_target}")
@ -198,12 +190,6 @@ function (add_flangrt_library name)
endif ()
endif ()
if (build_object)
add_library(${name}.compile ALIAS "${name_object}")
else ()
add_library(${name}.compile ALIAS "${default_target}")
endif ()
foreach (tgtname IN LISTS libtargets)
if (NOT WIN32)
# Use same stem name for .a and .so. Common in UNIX environments.
@ -233,14 +219,6 @@ function (add_flangrt_library name)
# Minimum required C++ version for Flang-RT, even if CMAKE_CXX_STANDARD is defined to something else.
target_compile_features(${tgtname} PRIVATE cxx_std_17)
target_compile_options(${tgtname} PRIVATE
# Always enable preprocessor regardless of file extension
"$<$<COMPILE_LANGUAGE:Fortran>:-cpp>"
# Missing type descriptors are expected for intrinsic modules
"$<$<COMPILE_LANGUAGE:Fortran>:SHELL:-mmlir;SHELL:-ignore-missing-type-desc>"
)
# When building the flang runtime if LTO is enabled the archive file
# contains LLVM IR rather than object code. Currently flang is not
# LTO aware so cannot link this file to compiled Fortran code.
@ -248,10 +226,6 @@ function (add_flangrt_library name)
target_compile_options(${tgtname} PRIVATE -fno-lto)
endif ()
if (FORTRAN_SUPPORTS_REAL16)
target_compile_definitions(${tgtname} PRIVATE FLANG_SUPPORT_R16=1)
endif ()
# Use compiler-specific options to disable exceptions and RTTI.
if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
target_compile_options(${tgtname} PRIVATE
@ -370,13 +344,13 @@ function (add_flangrt_library name)
if (ARG_INSTALL_WITH_TOOLCHAIN)
set_target_properties(${tgtname}
PROPERTIES
ARCHIVE_OUTPUT_DIRECTORY "${RUNTIMES_OUTPUT_RESOURCE_LIB_DIR}"
LIBRARY_OUTPUT_DIRECTORY "${RUNTIMES_OUTPUT_RESOURCE_LIB_DIR}"
ARCHIVE_OUTPUT_DIRECTORY "${FLANG_RT_OUTPUT_RESOURCE_LIB_DIR}"
LIBRARY_OUTPUT_DIRECTORY "${FLANG_RT_OUTPUT_RESOURCE_LIB_DIR}"
)
install(TARGETS ${tgtname}
ARCHIVE DESTINATION "${RUNTIMES_INSTALL_RESOURCE_LIB_PATH}"
LIBRARY DESTINATION "${RUNTIMES_INSTALL_RESOURCE_LIB_PATH}"
ARCHIVE DESTINATION "${FLANG_RT_INSTALL_RESOURCE_LIB_PATH}"
LIBRARY DESTINATION "${FLANG_RT_INSTALL_RESOURCE_LIB_PATH}"
)
endif ()

15
flang-rt/cmake/modules/AddFlangRTOffload.cmake
View File

@ -88,16 +88,16 @@ macro(enable_omp_offload_compilation name files)
"${FLANG_RT_DEVICE_ARCHITECTURES}"
)
set(OMP_COMPILE_OPTIONS $<$<COMPILE_LANGUAGE:C,CXX>:
set(OMP_COMPILE_OPTIONS
-fopenmp
-fvisibility=hidden
-fopenmp-cuda-mode
--offload-arch=${compile_for_architectures}
# Force LTO for the device part.
-foffload-lto
>)
set_property(SOURCE ${files} APPEND
PROPERTY COMPILE_DEFINITIONS ${OMP_COMPILE_OPTIONS}
)
set_source_files_properties(${files} PROPERTIES COMPILE_OPTIONS
"${OMP_COMPILE_OPTIONS}"
)
target_link_options(${name}.static PUBLIC ${OMP_COMPILE_OPTIONS})
@ -105,13 +105,6 @@ macro(enable_omp_offload_compilation name files)
set_source_files_properties(${files}
PROPERTIES COMPILE_DEFINITIONS OMP_OFFLOAD_BUILD
)
# If building flang-rt together with libomp, ensure that libomp is built
# first and found because -fopenmp will try to link it.
if (TARGET omp)
add_dependencies(${name} omp)
target_link_options(${name}.static PUBLIC "-L$<TARGET_FILE_DIR:omp>")
endif ()
else()
message(FATAL_ERROR
"Flang-rt build with OpenMP offload is not supported for these compilers:\n"

36
flang-rt/cmake/modules/FlangRTIntrospection.cmake
View File

@ -1,36 +0,0 @@
#===-- cmake/modules/FlangRTIntrospection.cmake ----------------------------===#
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
#===------------------------------------------------------------------------===#
include(CMakePushCheckState)
# Check whether the Fortran compiler supports real(16)/quadmath types
#
# Implementation notes:
#
# * FORTRAN_SUPPORTS_REAL16 can be set externally in a bootstrapping-runtimes
# build to ensure consistency of real(16) support between compiler and
# runtime.
#
# * cmake_push_check_state/cmake_pop_check_state is insufficient to isolate
# a compiler introspection environment, see
# https://gitlab.kitware.com/cmake/cmake/-/issues/27419
# Additionally wrap it in a function namespace.
function (check_fortran_quadmath_support)
cmake_push_check_state(RESET)
set(CMAKE_REQUIRED_FLAGS "-ffree-form")
set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY") # Skip link step
check_fortran_source_compiles([[
subroutine test_quadmath
real(16) :: var1
end
]]
FORTRAN_SUPPORTS_REAL16
)
cmake_pop_check_state()
endfunction ()

11
cmake/Modules/GetToolchainDirs.cmake → flang-rt/cmake/modules/GetToolchainDirs.cmake
View File

@ -47,17 +47,6 @@ function (get_toolchain_library_subdir outvar)
endfunction ()
# Corresponds to Flang's ToolChain::getDefaultIntrinsicModuleDir().
function (get_toolchain_module_subdir outvar)
set(outval "finclude/flang")
get_toolchain_arch_dirname(arch_dirname)
set(outval "${outval}/${arch_dirname}")
set(${outvar} "${outval}" PARENT_SCOPE)
endfunction ()
# Corresponds to Clang's ToolChain::getOSLibName(). Adapted from Compiler-RT.
function (get_toolchain_os_dirname outvar)
if (ANDROID)

15
flang-rt/lib/CMakeLists.txt
View File

@ -6,16 +6,11 @@
#
#===------------------------------------------------------------------------===#
if (FLANG_RT_ENABLE_STATIC OR FLANG_RT_ENABLE_SHARED)
add_subdirectory(quadmath)
add_subdirectory(runtime)
if (FLANG_RT_INCLUDE_CUF)
add_subdirectory(cuda)
endif()
else ()
# Generate modules files only, skip the libraries
add_subdirectory(runtime)
endif ()
add_subdirectory(quadmath)
add_subdirectory(runtime)
if (FLANG_RT_INCLUDE_CUF)
add_subdirectory(cuda)
endif()
if (FLANG_RT_INCLUDE_TESTS)
add_subdirectory(Testing)

175
flang-rt/lib/runtime/CMakeLists.txt
View File

@ -12,30 +12,6 @@ find_package(Backtrace)
set(HAVE_BACKTRACE ${Backtrace_FOUND})
set(BACKTRACE_HEADER ${Backtrace_HEADER})
# Module sources that are required by other modules
set(intrinsics_sources
__fortran_builtins.f90
__cuda_builtins.f90
)
# Fortran sources for builtin .mod files
set(module_sources
__fortran_ieee_exceptions.f90
__fortran_type_info.f90
flang_debug.f90
iso_fortran_env.f90
ieee_arithmetic.f90
ieee_exceptions.f90
ieee_features.f90
iso_c_binding.f90
iso_fortran_env.f90
iso_fortran_env_impl.f90
__cuda_device.f90
cooperative_groups.f90
cudadevice.f90
)
# List of files that are buildable for all devices.
set(supported_sources
${FLANG_SOURCE_DIR}/lib/Decimal/binary-to-decimal.cpp
@ -97,6 +73,7 @@ set(supported_sources
# List of source not used for GPU offloading.
set(host_sources
${FLANG_SOURCE_DIR}/module/iso_fortran_env_impl.f90
command.cpp
complex-powi.cpp
complex-reduction.c
@ -172,91 +149,45 @@ file(GLOB_RECURSE private_headers
"${FLANG_SOURCE_DIR}/lib/Common/*.h"
)
if (LLVM_TARGET_TRIPLE MATCHES "^ppc|^powerpc")
list(APPEND intrinsics_sources
__ppc_types.f90
)
list(APPEND module_sources
__ppc_intrinsics.f90
mma.f90
)
endif ()
# Compile as CUDA-Fortran, not directly supported by CMake
set_property(SOURCE
__cuda_device.f90
cooperative_groups.f90
cudadevice.f90
APPEND PROPERTY
COMPILE_OPTIONS --offload-host-only -xcuda
)
# Import changes from flang_rt.quadmath
set(f128_sources "")
if (TARGET FortranFloat128MathILib)
get_target_property(_propval
FortranFloat128MathILib INTERFACE_SOURCES
get_target_property(f128_sources
FortranFloat128MathILib INTERFACE_SOURCES
)
if (f128_sources)
# The interface may define special macros for Float128Math files,
# so we need to propagate them.
get_target_property(f128_defs
FortranFloat128MathILib INTERFACE_COMPILE_DEFINITIONS
)
set_property(SOURCE ${f128_sources}
APPEND PROPERTY COMPILE_DEFINITIONS
${f128_defs}
)
get_target_property(f128_include_dirs
FortranFloat128MathILib INTERFACE_INCLUDE_DIRECTORIES
)
set_property(SOURCE ${f128_sources}
APPEND PROPERTY INCLUDE_DIRECTORIES
${f128_include_dirs}
)
if (_propval)
set(f128_sources "${_propval}")
# The interface may define special macros for Float128Math files,
# so we need to propagate them.
get_target_property(f128_defs
FortranFloat128MathILib INTERFACE_COMPILE_DEFINITIONS
)
set_property(SOURCE ${f128_sources}
APPEND PROPERTY COMPILE_DEFINITIONS
${f128_defs}
)
get_target_property(f128_include_dirs
FortranFloat128MathILib INTERFACE_INCLUDE_DIRECTORIES
)
set_property(SOURCE ${f128_sources}
APPEND PROPERTY INCLUDE_DIRECTORIES
${f128_include_dirs}
)
endif ()
endif ()
if (NOT FLANG_RT_ENABLE_STATIC AND NOT FLANG_RT_ENABLE_SHARED)
# If not compiling the library, only build the modules.
set(sources ${module_sources})
elseif (LLVM_RUNTIMES_TARGET MATCHES "^amdgcn|^nvptx")
set(sources ${gpu_sources} ${module_sources})
else ()
set(sources ${supported_sources} ${host_sources} ${module_sources} ${f128_sources})
set(f128_sources "")
endif ()
# check-flang depends on flang-rt-mod to build intrinsic modules
if (NOT TARGET flang-rt-mod)
add_custom_target(flang-rt-mod)
if ("${LLVM_RUNTIMES_TARGET}" MATCHES "^amdgcn|^nvptx")
set(sources ${gpu_sources})
elseif(FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT STREQUAL "CUDA")
set(sources ${supported_sources})
else ()
set(sources ${supported_sources} ${host_sources} ${f128_sources})
endif ()
if (NOT WIN32)
# CMake ignores intrinsic USE dependencies
# CMake has an option Fortran_BUILDING_INSTRINSIC_MODULES/Fortran_BUILDING_INTRINSIC_MODULES
# to disable this behavior, unfortunately it does not work with Ninja
# (https://gitlab.kitware.com/cmake/cmake/-/issues/26803)
# As a workaround, we build those intrinsic modules first such that the main
# runtime can depend on it.
add_flangrt_library(flang_rt.intrinsics.obj OBJECT
${intrinsics_sources}
)
# This barrier exists to force all of the intrinsic modules of
# flang_rt.intrinsics.obj to be built before anything that depends on it.
# Without it, CMake/Ninja seem to think that the modules of
# flang_rt.intrinsics.obj can be built concurrently to those in
# flang_rt.runtime.
add_custom_target(flang_rt.intrinsics
COMMENT "Intrinsic module dependency barrier"
)
add_dependencies(flang_rt.intrinsics flang_rt.intrinsics.obj)
add_flangrt_library(flang_rt.runtime STATIC SHARED
${sources} $<TARGET_OBJECTS:flang_rt.intrinsics.obj>
LINK_LIBRARIES flang_rt.intrinsics.obj ${Backtrace_LIBRARY}
${sources}
LINK_LIBRARIES ${Backtrace_LIBRARY}
INSTALL_WITH_TOOLCHAIN
ADDITIONAL_HEADERS ${public_headers} ${private_headers}
)
@ -265,17 +196,8 @@ if (NOT WIN32)
enable_omp_offload_compilation(flang_rt.runtime "${supported_sources}")
# Select a default runtime, which is used for unit and regression tests.
if (FLANG_RT_INCLUDE_TESTS)
get_target_property(default_target flang_rt.runtime.default ALIASED_TARGET)
add_library(flang_rt.runtime.unittest ALIAS "${default_target}")
endif ()
# Select a target that compiles the sources to build the public module files.
get_target_property(compile_target flang_rt.runtime.compile ALIASED_TARGET)
flang_module_target(flang_rt.intrinsics.obj PUBLIC)
flang_module_target(${compile_target} PUBLIC)
add_dependencies(${compile_target} flang_rt.intrinsics)
add_dependencies(flang-rt-mod flang_rt.intrinsics ${compile_target})
get_target_property(default_target flang_rt.runtime.default ALIASED_TARGET)
add_library(flang_rt.runtime.unittest ALIAS "${default_target}")
else()
# Target for building all versions of the runtime
add_custom_target(flang_rt.runtime)
@ -283,23 +205,12 @@ else()
function (add_win_flangrt_runtime libtype suffix msvc_lib)
set(name "flang_rt.runtime.${suffix}")
add_flangrt_library(${name}.intrinsics.obj OBJECT
${intrinsics_sources}
)
add_custom_target(${name}.intrinsics
COMMAND echo "${name} Dependency barrier"
COMMENT "Intrinsic module dependency barrier"
)
add_dependencies(${name}.intrinsics ${name}.intrinsics.obj)
add_flangrt_library(${name} ${libtype}
${sources} $<TARGET_OBJECTS:${name}.intrinsics.obj>
${sources}
${ARGN}
LINK_LIBRARIES ${name}.intrinsics.obj ${Backtrace_LIBRARY}
LINK_LIBRARIES ${Backtrace_LIBRARY}
ADDITIONAL_HEADERS ${public_headers} ${private_headers}
)
get_target_property(compile_target ${name}.compile ALIASED_TARGET)
if (msvc_lib)
set_target_properties(${name}
@ -309,19 +220,11 @@ else()
endif ()
# Setting an unique Fortran_MODULE_DIRECTORY is required for each variant to
# write a different .mod file. One of them has to be selected to be the
# public module that is to be installed. We select the first.
if (_has_public_intrinsics)
set(is_public "")
else ()
set(is_public PUBLIC)
add_dependencies(flang-rt-mod ${name}.intrinsics ${compile_target})
set(_has_public_intrinsics "YES" PARENT_SCOPE)
endif ()
flang_module_target(${name}.intrinsics.obj ${is_public})
flang_module_target(${compile_target} ${is_public})
add_dependencies(${compile_target} ${name}.intrinsics)
# write a different .mod file.
set_target_properties(${name}
PROPERTIES
Fortran_MODULE_DIRECTORY "module.${suffix}"
)
enable_cuda_compilation(${name} "${supported_sources}")
enable_omp_offload_compilation(${name} "${supported_sources}")

2
flang-rt/test/lit.site.cfg.py.in
View File

@ -6,7 +6,7 @@ config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
config.flang_source_dir = "@FLANG_SOURCE_DIR@"
config.flang_rt_source_dir = "@FLANG_RT_SOURCE_DIR@"
config.flang_rt_binary_test_dir = os.path.dirname(__file__)
config.flang_rt_output_resource_lib_dir = "@RUNTIMES_OUTPUT_RESOURCE_LIB_DIR@"
config.flang_rt_output_resource_lib_dir = "@FLANG_RT_OUTPUT_RESOURCE_LIB_DIR@"
config.flang_rt_experimental_offload_support = "@FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT@"
config.cc = "@CMAKE_C_COMPILER@"
config.flang = "@CMAKE_Fortran_COMPILER@"

5
flang-rt/unittests/CMakeLists.txt
View File

@ -49,8 +49,9 @@ function(add_flangrt_unittest_offload_properties target)
# FIXME: replace 'native' in --offload-arch option with the list
# of targets that Fortran Runtime was built for.
if (FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT STREQUAL "OpenMP")
set_property(TARGET ${target} APPEND
PROPERTY LINK_OPTIONS -fopenmp --offload-arch=native
set_target_properties(${target}
PROPERTIES LINK_OPTIONS
"-fopenmp;--offload-arch=native"
)
endif()
endfunction()

1
flang/CMakeLists.txt
View File

@ -273,6 +273,7 @@ set(FLANG_TOOLS_INSTALL_DIR "${CMAKE_INSTALL_BINDIR}" CACHE PATH
"Path for binary subdirectory (defaults to '${CMAKE_INSTALL_BINDIR}')")
mark_as_advanced(FLANG_TOOLS_INSTALL_DIR)
set(FLANG_INTRINSIC_MODULES_DIR ${CMAKE_BINARY_DIR}/include/flang)
set(FLANG_INCLUDE_DIR ${FLANG_BINARY_DIR}/include)
# TODO: Remove when libclangDriver is lifted out of Clang

7
flang/include/flang/Frontend/CompilerInvocation.h
View File

@ -92,10 +92,6 @@ class CompilerInvocation : public CompilerInvocationBase {
// intrinsic of iso_fortran_env.
std::string allCompilerInvocOpts;
/// Location of the resource directory containing files specific to this
/// instance/version of Flang.
std::string resourceDir;
/// Semantic options
// TODO: Merge with or translate to frontendOpts. We shouldn't need two sets
// of options.
@ -181,9 +177,6 @@ public:
getSemanticsCtx(Fortran::parser::AllCookedSources &allCookedSources,
const llvm::TargetMachine &);
std::string &getResourceDir() { return resourceDir; }
const std::string &getResourceDir() const { return resourceDir; }
std::string &getModuleDir() { return moduleDir; }
const std::string &getModuleDir() const { return moduleDir; }

26
flang/lib/Frontend/CompilerInvocation.cpp
View File

@ -884,6 +884,16 @@ static bool parseFrontendArgs(FrontendOptions &opts, llvm::opt::ArgList &args,
return diags.getNumErrors() == numErrorsBefore;
}
// Generate the path to look for intrinsic modules
static std::string getIntrinsicDir(const char *argv) {
// TODO: Find a system independent API
llvm::SmallString<128> driverPath;
driverPath.assign(llvm::sys::fs::getMainExecutable(argv, nullptr));
llvm::sys::path::remove_filename(driverPath);
driverPath.append("/../include/flang/");
return std::string(driverPath);
}
// Generate the path to look for OpenMP headers
static std::string getOpenMPHeadersDir(const char *argv) {
llvm::SmallString<128> includePath;
@ -1557,14 +1567,6 @@ bool CompilerInvocation::createFromArgs(
success = false;
}
// User-specified or default resource dir
if (const llvm::opt::Arg *a =
args.getLastArg(clang::options::OPT_resource_dir))
invoc.resourceDir = a->getValue();
else
invoc.resourceDir = clang::GetResourcesPath(
llvm::sys::fs::getMainExecutable(argv0, nullptr));
// -flang-experimental-hlfir
if (args.hasArg(clang::options::OPT_flang_experimental_hlfir) ||
args.hasArg(clang::options::OPT_emit_hlfir)) {
@ -1831,11 +1833,9 @@ void CompilerInvocation::setFortranOpts() {
preprocessorOptions.searchDirectoriesFromIntrModPath.begin(),
preprocessorOptions.searchDirectoriesFromIntrModPath.end());
// Add the ordered list of -fintrinsic-modules-path
fortranOptions.intrinsicModuleDirectories.insert(
fortranOptions.intrinsicModuleDirectories.end(),
preprocessorOptions.searchDirectoriesFromIntrModPath.begin(),
preprocessorOptions.searchDirectoriesFromIntrModPath.end());
// Add the default intrinsic module directory
fortranOptions.intrinsicModuleDirectories.emplace_back(
getIntrinsicDir(getArgv0()));
// Add the directory supplied through -J/-module-dir to the list of search
// directories

13
flang/lib/Semantics/semantics.cpp
View File

@ -621,15 +621,12 @@ bool Semantics::Perform() {
const auto *frontModule{std::get_if<common::Indirection<parser::Module>>(
&program_.v.front().u)};
if (frontModule &&
std::get<parser::Statement<parser::ModuleStmt>>(frontModule->value().t)
.statement.v.source == "__fortran_builtins") {
(std::get<parser::Statement<parser::ModuleStmt>>(frontModule->value().t)
.statement.v.source == "__fortran_builtins" ||
std::get<parser::Statement<parser::ModuleStmt>>(
frontModule->value().t)
.statement.v.source == "__ppc_types")) {
// Don't try to read the builtins module when we're actually building it.
} else if (frontModule &&
std::get<parser::Statement<parser::ModuleStmt>>(frontModule->value().t)
.statement.v.source == "__ppc_types") {
// Don't try to read the UsePPCBuiltinTypesModule() we are currently
// building, but __fortran_builtins is needed to build it.
context_.UseFortranBuiltinsModule();
} else if (frontModule &&
(std::get<parser::Statement<parser::ModuleStmt>>(frontModule->value().t)
.statement.v.source == "__ppc_intrinsics" ||

1
flang/module/.clang-format Normal file
View File

@ -0,0 +1 @@
DisableFormat: true

0
flang-rt/lib/runtime/__cuda_builtins.f90 → flang/module/__cuda_builtins.f90
View File

0
flang-rt/lib/runtime/__cuda_device.f90 → flang/module/__cuda_device.f90
View File

2
flang-rt/lib/runtime/__fortran_builtins.f90 → flang/module/__fortran_builtins.f90
View File

@ -6,7 +6,7 @@
!
!===------------------------------------------------------------------------===!
#include '../../../flang/include/flang/Runtime/magic-numbers.h'
#include '../include/flang/Runtime/magic-numbers.h'
! These naming shenanigans prevent names from Fortran intrinsic modules
! from being usable on INTRINSIC statements, and force the program

2
flang-rt/lib/runtime/__fortran_ieee_exceptions.f90 → flang/module/__fortran_ieee_exceptions.f90
View File

@ -11,7 +11,7 @@
! here under another name so that IEEE_ARITHMETIC can USE it and export its
! declarations without clashing with a non-intrinsic module in a program.
#include '../../../flang/include/flang/Runtime/magic-numbers.h'
#include '../include/flang/Runtime/magic-numbers.h'
module __fortran_ieee_exceptions
use __fortran_builtins, only: &

0
flang-rt/lib/runtime/__fortran_type_info.f90 → flang/module/__fortran_type_info.f90
View File

0
flang-rt/lib/runtime/__ppc_intrinsics.f90 → flang/module/__ppc_intrinsics.f90
View File

0
flang-rt/lib/runtime/__ppc_types.f90 → flang/module/__ppc_types.f90
View File

1
flang-rt/lib/runtime/cooperative_groups.f90 → flang/module/cooperative_groups.f90
View File

@ -11,7 +11,6 @@
module cooperative_groups
use, intrinsic :: __fortran_builtins, only: c_devptr => __builtin_c_devptr
use :: cudadevice ! implicit dependency, made explicit for CMake
implicit none

0
flang-rt/lib/runtime/cudadevice.f90 → flang/module/cudadevice.f90
View File

0
flang-rt/lib/runtime/flang_debug.f90 → flang/module/flang_debug.f90
View File

2
flang-rt/lib/runtime/ieee_arithmetic.f90 → flang/module/ieee_arithmetic.f90
View File

@ -8,7 +8,7 @@
! Fortran 2018 Clause 17
#include '../../../flang/include/flang/Runtime/magic-numbers.h'
#include '../include/flang/Runtime/magic-numbers.h'
module ieee_arithmetic
! F18 Clause 17.1p1:

0
flang-rt/lib/runtime/ieee_exceptions.f90 → flang/module/ieee_exceptions.f90
View File

0
flang-rt/lib/runtime/ieee_features.f90 → flang/module/ieee_features.f90
View File

0
flang-rt/lib/runtime/iso_c_binding.f90 → flang/module/iso_c_binding.f90
View File

2
flang-rt/lib/runtime/iso_fortran_env.f90 → flang/module/iso_fortran_env.f90
View File

@ -8,7 +8,7 @@
! See Fortran 2023, subclause 16.10.2
#include '../../../flang/include/flang/Runtime/magic-numbers.h'
#include '../include/flang/Runtime/magic-numbers.h'
module iso_fortran_env

0
flang-rt/lib/runtime/iso_fortran_env_impl.f90 → flang/module/iso_fortran_env_impl.f90
View File

0
flang-rt/lib/runtime/mma.f90 → flang/module/mma.f90
View File

31
flang/test/CMakeLists.txt
View File

@ -2,31 +2,11 @@
# for use by Lit, and delegates to LLVM's lit test handlers.
add_subdirectory(lib)
set(FLANG_TEST_Fortran_FLAGS "" CACHE STRING "Additional Fortran flags for running tests, such as -fintrinsic-modules-path=<path>")
if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
set(FLANG_TEST_ENABLE_MODULES_default ON)
else ()
set(FLANG_TEST_ENABLE_MODULES_default OFF)
endif ()
option(FLANG_TEST_ENABLE_MODULES "Force-enable tests that require intrinsic modules from Flang-RT" "${FLANG_TEST_ENABLE_MODULES_default}")
if ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES AND FLANG_TEST_ENABLE_MODULES AND NOT FLANG_STANDALONE_BUILD)
set(FLANG_TEST_ENABLE_OPENMP_default ON)
else ()
set(FLANG_TEST_ENABLE_OPENMP_default OFF)
endif ()
option(FLANG_TEST_ENABLE_OPENMP "Force-enable tests that require modules from OpenMP" "${FLANG_TEST_ENABLE_OPENMP_default}")
llvm_canonicalize_cmake_booleans(
FLANG_STANDALONE_BUILD
LLVM_BUILD_EXAMPLES
LLVM_BYE_LINK_INTO_TOOLS
LLVM_ENABLE_PLUGINS
FLANG_TEST_ENABLE_MODULES
FLANG_TEST_ENABLE_OPENMP
)
set(FLANG_TOOLS_DIR ${FLANG_BINARY_DIR}/bin)
@ -79,6 +59,7 @@ set(FLANG_TEST_PARAMS
set(FLANG_TEST_DEPENDS
flang
module_files
fir-opt
tco
bbc
@ -120,14 +101,8 @@ if (LLVM_BUILD_EXAMPLES)
)
endif ()
if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES AND NOT FLANG_STANDALONE_BUILD)
# For intrinsic module files (in flang-rt/)
list(APPEND FLANG_TEST_DEPENDS "flang-rt-mod")
if ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES)
# For omplib.mod and omplib_kinds.mod (in openmp/)
list(APPEND FLANG_TEST_DEPENDS "libomp-mod")
endif ()
if ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES AND NOT FLANG_STANDALONE_BUILD)
list(APPEND FLANG_TEST_DEPENDS "libomp-mod")
endif ()
add_custom_target(flang-test-depends DEPENDS ${FLANG_TEST_DEPENDS})

1
flang/test/Driver/Inputs/ieee_arithmetic.mod
View File

@ -1,6 +1,5 @@
! DUMMY module
! Added for testing purposes. The contents of this file are currently not relevant.
! Using this file will cause an error because of missing checksum
module ieee_arithmetic
type::ieee_round_type
integer(1),private::mode=0_1

1
flang/test/Driver/Inputs/iso_fortran_env.mod
View File

@ -1,6 +1,5 @@
! DUMMY module
! Added for testing purposes. The contents of this file are currently not relevant.
! Using this file will cause an error because of missing checksum
module iso_fortran_env
use __fortran_builtins,only:event_type=>__builtin_event_type
use __fortran_builtins,only:lock_type=>__builtin_lock_type

55
flang/test/Driver/intrinsic-module-path.F90
View File

@ -1,55 +0,0 @@
! Ensure argument -fintrinsic-modules-path works as expected.
!-----------------------------------------
! FLANG DRIVER
!-----------------------------------------
! NOTE: Depending on how Flang is built, the default intrinsics may have higher
! or lower priority than -fintrinsic-modules-path added here. Using
! basictestmoduleone.mod from Inputs/module-dir/ will trigger an error.
! RUN: %flang -fsyntax-only -### %s 2>&1 | FileCheck %s --check-prefix=DEFAULTPATH
! RUN: %flang -fsyntax-only -DINTRINSICS_DEFAULT %s
! RUN: not %flang -fsyntax-only -DINTRINSICS_INPUTONE %s 2>&1 | FileCheck %s --check-prefix=NOINPUTONE
! RUN: not %flang -fsyntax-only -DINTRINSICS_INPUTTWO %s 2>&1 | FileCheck %s --check-prefix=NOINPUTTWO
! RUN: %flang -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/module-dir/ %s
! RUN: %flang -fsyntax-only -DINTRINSICS_INPUTONE -fintrinsic-modules-path=%S/Inputs/ %s
! RUN: %flang -fsyntax-only -DINTRINSICS_INPUTONE -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/ -fintrinsic-modules-path=%S/Inputs/module-dir/ %s
! RUN: not %flang -fsyntax-only -DINTRINSICS_INPUTONE -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/module-dir/ -fintrinsic-modules-path=%S/Inputs/ %s 2>&1 | FileCheck %s --check-prefix=WRONGINPUTONE
!-----------------------------------------
! FLANG FRONTEND (flang -fc1)
!-----------------------------------------
! NOTE: %flang_cc1 the default intrinsics path always has higher priority than
! -fintrinsic-modules-path added here. Accidentally using
! ieee_arithmetic/iso_fortran_env from the Inputs/ directory will trigger
! an error (e.g. when the default intrinsics dir is empty).
! RUN: %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT %s
! RUN: not %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTONE %s 2>&1 | FileCheck %s --check-prefix=NOINPUTONE
! RUN: not %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTTWO %s 2>&1 | FileCheck %s --check-prefix=NOINPUTTWO
! RUN: %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/module-dir %s
! RUN: %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTONE -fintrinsic-modules-path=%S/Inputs/ %s
! RUN: %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTONE -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/ -fintrinsic-modules-path=%S/Inputs/module-dir/ %s
! RUN: not %flang_fc1 -fsyntax-only -DINTRINSICS_DEFAULT -DINTRINSICS_INPUTONE -DINTRINSICS_INPUTTWO -fintrinsic-modules-path=%S/Inputs/module-dir -fintrinsic-modules-path=%S/Inputs/ %s 2>&1 | FileCheck %s --check-prefix=WRONGINPUTONE
! DEFAULTPATH: flang{{.*}}-fc1{{.*}}-fintrinsic-modules-path
! NOINPUTONE: Source file 'basictestmoduleone.mod' was not found
! NOINPUTTWO: Source file 'basictestmoduletwo.mod' was not found
! WRONGINPUTONE: 't1' not found in module 'basictestmoduleone'
program test_intrinsic_module_path
#ifdef INTRINSICS_DEFAULT
use ieee_arithmetic, only: ieee_round_type
use iso_fortran_env, only: team_type, event_type, lock_type
#endif
#ifdef INTRINSICS_INPUTONE
use basictestmoduleone, only: t1
#endif
#ifdef INTRINSICS_INPUTTWO
use basictestmoduletwo, only: t2
#endif
end program

23
flang/test/Driver/intrinsic-module-path.f90 Normal file
View File

@ -0,0 +1,23 @@
! Ensure argument -fintrinsic-modules-path works as expected.
! WITHOUT the option, the default location for the module is checked and no error generated.
! With the option GIVEN, the module with the same name is PREPENDED, and considered over the
! default one, causing a CHECKSUM error.
!-----------------------------------------
! FRONTEND FLANG DRIVER (flang -fc1)
!-----------------------------------------
! RUN: %flang_fc1 -fsyntax-only %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
! RUN: not %flang_fc1 -fsyntax-only -fintrinsic-modules-path %S/Inputs/ %s 2>&1 | FileCheck %s --check-prefix=GIVEN
! RUN: not %flang_fc1 -fsyntax-only -fintrinsic-modules-path=%S/Inputs/ %s 2>&1 | FileCheck %s --check-prefix=GIVEN
! WITHOUT-NOT: 'ieee_arithmetic.mod' was not found
! WITHOUT-NOT: 'iso_fortran_env.mod' was not found
! GIVEN: error: Cannot use module file for module 'ieee_arithmetic': File has invalid checksum
! GIVEN: error: Cannot use module file for module 'iso_fortran_env': File has invalid checksum
program test_intrinsic_module_path
use ieee_arithmetic, only: ieee_round_type
use iso_fortran_env, only: team_type, event_type, lock_type
end program

4
flang/test/Driver/lto-fatlto.f90
View File

@ -1,7 +1,7 @@
! REQUIRES: x86-registered-target
! checks fatlto objects: that valid bitcode is included in the object file generated.
! RUN: %flang_fc1 -triple x86_64-unknown-linux-gnu -flto -ffat-lto-objects -emit-obj %s -o %t.o
! RUN: %flang -fc1 -triple x86_64-unknown-linux-gnu -flto -ffat-lto-objects -emit-obj %s -o %t.o
! RUN: llvm-readelf -S %t.o | FileCheck %s --check-prefixes=ELF
! RUN: llvm-objcopy --dump-section=.llvm.lto=%t.bc %t.o
! RUN: llvm-dis %t.bc -o - | FileCheck %s --check-prefixes=DIS
@ -11,7 +11,7 @@
! DIS-NEXT: ret void
! DIS-NEXT: }
! RUN: %flang_fc1 -triple x86_64-unknown-linux-gnu -flto -ffat-lto-objects -S %s -o - | FileCheck %s --check-prefixes=ASM
! RUN: %flang -fc1 -triple x86_64-unknown-linux-gnu -flto -ffat-lto-objects -S %s -o - | FileCheck %s --check-prefixes=ASM
! ASM: .section .llvm.lto,"e",@llvm_lto
! ASM-NEXT: .Lllvm.embedded.object:

4
flang/test/Driver/pp-fixed-form.f90
View File

@ -8,12 +8,12 @@ FIXED-NEXT: "-fc1" {{.*}} "-ffixed-form" {{.*}} "-x" "f95-cpp-input" "fixed-form
!RUN: %flang -save-temps -### -ffree-form %S/Inputs/free-form-test.f90 2>&1 | FileCheck %s --check-prefix=FREE-FLAG
FREE-FLAG: "-fc1" {{.*}} "-o" "free-form-test.i" {{.*}} "-x" "f95" "{{.*}}/free-form-test.f90"
FREE-FLAG-NEXT: "-fc1" {{.*}} "-emit-llvm-bc" {{.*}}"-ffree-form"
FREE-FLAG-NEXT: "-fc1" {{.*}} "-emit-llvm-bc" "-ffree-form"
FREE-FLAG-NOT: "-ffixed-form"
FREE-FLAG-SAME: "-x" "f95-cpp-input" "free-form-test.i"
!RUN: %flang -save-temps -### -ffixed-form %S/Inputs/fixed-form-test.f 2>&1 | FileCheck %s --check-prefix=FIXED-FLAG
FIXED-FLAG: "-fc1" {{.*}} "-o" "fixed-form-test.i" {{.*}} "-x" "f95" "{{.*}}/fixed-form-test.f"
FIXED-FLAG-NEXT: "-fc1" {{.*}} "-emit-llvm-bc" {{.*}}"-ffixed-form"
FIXED-FLAG-NEXT: "-fc1" {{.*}} "-emit-llvm-bc" "-ffixed-form"
FIXED-FLAG-NOT: "-ffixed-form"
FIXED-FLAG-SAME: "-x" "f95-cpp-input" "fixed-form-test.i"

2
flang/test/Lower/HLFIR/type-bound-call-mismatch.f90
View File

@ -1,6 +1,6 @@
! Test interface that lowering handles small interface mismatch with
! type bound procedures.
! RUN: %bbc_bare -emit-hlfir %s -o - -I nw | FileCheck %s
! RUN: bbc -emit-hlfir %s -o - -I nw | FileCheck %s
module dispatch_mismatch
type t

7
flang/test/Lower/OpenMP/simd_aarch64.f90
View File

@ -1,11 +1,6 @@
! Tests for 2.9.3.1 Simd and target dependent default alignment for AArch64
! Tests for 2.9.3.1 Simd and target dependent defult alignment for AArch64
! The default alignment for AARCH64 is 0 so we do not emit aligned clause
! REQUIRES: aarch64-registered-target
! Requires aarch64 iso_c_binding.mod which currently is only available if your host is also aarch64
! FIXME: Make flang a cross-compiler
! UNSUPPORTED: true
! RUN: %flang_fc1 -triple aarch64-unknown-linux-gnu -emit-hlfir -fopenmp %s -o - | FileCheck %s
subroutine simdloop_aligned_cptr(A)
use iso_c_binding

4
flang/test/Lower/OpenMP/target-enter-data-default-openmp52.f90
View File

@ -1,7 +1,7 @@
! This test checks the lowering and application of default map types for the target enter/exit data constructs and map clauses
!RUN: %flang_fc1 -emit-fir -fopenmp -fopenmp-version=52 -o - %s | FileCheck %s --check-prefix=CHECK-52
!RUN: not %flang_fc1 -emit-fir -fopenmp -fopenmp-version=51 -o - %s 2>&1| FileCheck %s --check-prefix=CHECK-51
!RUN: %flang -fc1 -emit-fir -fopenmp -fopenmp-version=52 -o - %s | FileCheck %s --check-prefix=CHECK-52
!RUN: not %flang -fc1 -emit-fir -fopenmp -fopenmp-version=51 -o - %s 2>&1| FileCheck %s --check-prefix=CHECK-51
module test
real, allocatable :: A

2
flang/test/Preprocessing/fixed-free.f
View File

@ -1,5 +1,5 @@
!RUN: %flang -E %s 2>&1 | FileCheck %s
!RUN: %flang_fc1 -fsyntax-only %s 2>&1 | FileCheck --allow-empty %s
!RUN: %flang -fc1 -fsyntax-only %s 2>&1 | FileCheck --allow-empty %s
!CHECK-NOT: dir$
!CHECK-NOT: error:
!dir$ fixed

2
flang/test/Preprocessing/no-pp-if.f90
View File

@ -1,4 +1,4 @@
!RUN: %flang_fc1 -fdebug-unparse %s 2>&1 | FileCheck %s
!RUN: %flang -fc1 -fdebug-unparse %s 2>&1 | FileCheck %s
!CHECK-NOT: ERROR STOP
!CHECK: CONTINUE
#if defined UNDEFINED

2
flang/test/Semantics/bug163242.f90
View File

@ -1,4 +1,4 @@
!RUN: %flang_fc1 -fsyntax-only %s | FileCheck --allow-empty %s
!RUN: %flang -fc1 -fsyntax-only %s | FileCheck --allow-empty %s
!CHECK-NOT: error:
character(0), allocatable :: ch
allocate(character(-1) :: ch)

2
flang/test/Semantics/bug164303.f90
View File

@ -1,4 +1,4 @@
!RUN: %flang_fc1 -fsyntax-only %s 2>&1 | FileCheck --allow-empty %s
!RUN: %flang -fc1 -fsyntax-only %s 2>&1 | FileCheck --allow-empty %s
module foo_mod
use, intrinsic :: iso_fortran_env
use, intrinsic :: iso_c_binding

94
flang/test/lit.cfg.py
View File

@ -139,95 +139,18 @@ config.substitutions.append(("%isysroot", " ".join(isysroot_flag)))
if config.default_sysroot:
config.available_features.add("default_sysroot")
flang_exe = lit.util.which("flang", config.flang_llvm_tools_dir)
if not flang_exe:
lit_config.fatal(f"Could not identify flang executable")
# Intrinsic paths that are added implicitly by the `flang` driver, but have to be added manually when invoking the frontend `flang -fc1`.
flang_driver_search_args = []
# Intrinsic paths that are added to `flang` as well as `flang -fc1`.
flang_extra_search_args = list(config.flang_test_fortran_flags)
def get_resource_module_intrinsic_dir(modfile):
# Determine the intrinsic module search path that is added by the driver. If
# skipping the driver using -fc1, we need to append the path manually.
flang_intrinsics_dir = subprocess.check_output(
[flang_exe, *config.flang_test_fortran_flags, f"-print-file-name={modfile}"],
text=True,
).strip()
flang_intrinsics_dir = os.path.dirname(flang_intrinsics_dir)
return flang_intrinsics_dir or None
intrinsics_mod_path = get_resource_module_intrinsic_dir("__fortran_builtins.mod")
if intrinsics_mod_path:
flang_driver_search_args += [f"-fintrinsic-modules-path={intrinsics_mod_path}"]
openmp_mod_path = get_resource_module_intrinsic_dir("omp_lib.mod")
if openmp_mod_path and openmp_mod_path != intrinsics_mod_path:
flang_driver_search_args += [f"-fintrinsic-modules-path={openmp_mod_path}"]
# If intrinsic modules are not available, disable tests unless they are marked as 'module-independent'.
config.available_features.add("module-independent")
if config.flang_test_enable_modules or intrinsics_mod_path:
config.available_features.add("flangrt-modules")
else:
lit_config.warning(
f"Intrinsic modules not in driver default paths: disabling most tests; Use FLANG_TEST_ENABLE_MODULES=ON to force-enable"
)
config.limit_to_features.add("module-independent")
# Determine if OpenMP runtime was built (enable OpenMP tests via REQUIRES in test file)
if config.flang_test_enable_openmp or openmp_mod_path:
config.available_features.add("openmp_runtime")
# Search path for omp_lib.h with LLVM_ENABLE_RUNTIMES=openmp
# FIXME: openmp should write this file into the resource directory
flang_extra_search_args += [
"-I",
f"{config.flang_obj_root}/../../runtimes/runtimes-bins/openmp/runtime/src",
]
else:
lit_config.warning(
f"OpenMP modules found not in driver default paths: OpenMP tests disabled; Use FLANG_TEST_ENABLE_OPENMP=ON to force-enable"
)
lit_config.note(f"using flang: {flang_exe}")
lit_config.note(
f"using flang implicit search paths: {' '.join(flang_driver_search_args)}"
)
lit_config.note(f"using flang extra search paths: {' '.join(flang_extra_search_args)}")
# For each occurrence of a flang tool name, replace it with the full path to
# the build directory holding that tool.
tools = [
ToolSubst(
"bbc",
command=FindTool("bbc"),
extra_args=flang_driver_search_args + flang_extra_search_args,
unresolved="fatal",
),
ToolSubst(
"%flang",
command=flang_exe,
extra_args=flang_extra_search_args,
command=FindTool("flang"),
unresolved="fatal",
),
ToolSubst(
"%flang_fc1",
command=flang_exe,
extra_args=["-fc1"] + flang_driver_search_args + flang_extra_search_args,
unresolved="fatal",
),
# Variant that does not implicitly add intrinsic search paths
ToolSubst(
"%bbc_bare",
command=FindTool("bbc"),
command=FindTool("flang"),
extra_args=["-fc1"],
unresolved="fatal",
),
]
@ -270,7 +193,16 @@ result = lit_config.params.get("LIBPGMATH")
if result:
config.environment["LIBPGMATH"] = True
config.substitutions.append(("%openmp_flags", "-fopenmp"))
# Determine if OpenMP runtime was built (enable OpenMP tests via REQUIRES in test file)
openmp_flags_substitution = "-fopenmp"
if config.have_openmp_rtl:
config.available_features.add("openmp_runtime")
# For the enabled OpenMP tests, add a substitution that is needed in the tests to find
# the omp_lib.{h,mod} files, depending on whether the OpenMP runtime was built as a
# project or runtime.
if config.openmp_module_dir:
openmp_flags_substitution += f" -J {config.openmp_module_dir}"
config.substitutions.append(("%openmp_flags", openmp_flags_substitution))
# Add features and substitutions to test F128 math support.
# %f128-lib substitution may be used to generate check prefixes

9
flang/test/lit.site.cfg.py.in
View File

@ -13,12 +13,10 @@ config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
config.errc_messages = "@LLVM_LIT_ERRC_MESSAGES@"
config.flang_obj_root = "@FLANG_BINARY_DIR@"
config.flang_tools_dir = lit_config.substitute("@FLANG_TOOLS_DIR@")
config.flang_intrinsic_modules_dir = "@FLANG_INTRINSIC_MODULES_DIR@"
config.flang_headers_dir = "@HEADER_BINARY_DIR@"
config.flang_llvm_tools_dir = "@CMAKE_BINARY_DIR@/bin"
config.flang_test_triple = "@FLANG_TEST_TARGET_TRIPLE@"
config.flang_test_fortran_flags = "@FLANG_TEST_Fortran_FLAGS@".split()
config.flang_test_enable_modules = @FLANG_TEST_ENABLE_MODULES@
config.flang_test_enable_openmp = @FLANG_TEST_ENABLE_OPENMP@
config.flang_examples = @LLVM_BUILD_EXAMPLES@
config.python_executable = "@PYTHON_EXECUTABLE@"
config.flang_standalone_build = @FLANG_STANDALONE_BUILD@
@ -27,6 +25,11 @@ config.linked_bye_extension = @LLVM_BYE_LINK_INTO_TOOLS@
config.osx_sysroot = path(r"@CMAKE_OSX_SYSROOT@")
config.targets_to_build = "@TARGETS_TO_BUILD@"
config.default_sysroot = "@DEFAULT_SYSROOT@"
config.have_openmp_rtl = ("@LLVM_TOOL_OPENMP_BUILD@" == "TRUE") or ("openmp" in "@LLVM_ENABLE_RUNTIMES@".lower().split(";"))
if "openmp" in "@LLVM_ENABLE_RUNTIMES@".lower().split(";"):
config.openmp_module_dir = "@CMAKE_BINARY_DIR@/runtimes/runtimes-bins/openmp/runtime/src"
else:
config.openmp_module_dir = None
config.flang_runtime_f128_math_lib = "@FLANG_RUNTIME_F128_MATH_LIB@"
config.have_ldbl_mant_dig_113 = "@HAVE_LDBL_MANT_DIG_113@"

1
flang/tools/CMakeLists.txt
View File

@ -7,6 +7,7 @@
#===------------------------------------------------------------------------===#
add_subdirectory(bbc)
add_subdirectory(f18)
add_subdirectory(flang-driver)
add_subdirectory(tco)
add_subdirectory(f18-parse-demo)

13
flang/tools/bbc/bbc.cpp
View File

@ -98,11 +98,6 @@ static llvm::cl::alias
llvm::cl::desc("intrinsic module directory"),
llvm::cl::aliasopt(intrinsicIncludeDirs));
static llvm::cl::alias
intrinsicModulePath("fintrinsic-modules-path",
llvm::cl::desc("intrinsic module search paths"),
llvm::cl::aliasopt(intrinsicIncludeDirs));
static llvm::cl::opt<std::string>
moduleDir("module", llvm::cl::desc("module output directory (default .)"),
llvm::cl::init("."));
@ -579,6 +574,14 @@ int main(int argc, char **argv) {
if (includeDirs.size() == 0) {
includeDirs.push_back(".");
// Default Fortran modules should be installed in include/flang (a sibling
// to the bin) directory.
intrinsicIncludeDirs.push_back(
llvm::sys::path::parent_path(
llvm::sys::path::parent_path(
llvm::sys::fs::getMainExecutable(argv[0], nullptr)))
.str() +
"/include/flang");
}
Fortran::parser::Options options;

171
flang/tools/f18/CMakeLists.txt Normal file
View File

@ -0,0 +1,171 @@
set(LLVM_LINK_COMPONENTS
FrontendOpenACC
FrontendOpenMP
Support
)
# Define the list of Fortran module files for which it is
# sufficient to generate the module file via -fsyntax-only.
set(MODULES
"__fortran_builtins"
"__fortran_ieee_exceptions"
"__fortran_type_info"
"__ppc_types"
"__ppc_intrinsics"
"mma"
"__cuda_builtins"
"__cuda_device"
"cooperative_groups"
"cudadevice"
"ieee_arithmetic"
"ieee_exceptions"
"ieee_features"
"iso_c_binding"
"iso_fortran_env"
"iso_fortran_env_impl"
"flang_debug"
)
# Check if 128-bit float computations can be done via long double.
check_cxx_source_compiles(
"#include <cfloat>
#if LDBL_MANT_DIG != 113
#error LDBL_MANT_DIG != 113
#endif
int main() { return 0; }
"
HAVE_LDBL_MANT_DIG_113)
# Figure out whether we can support REAL(KIND=16)
if (FLANG_RUNTIME_F128_MATH_LIB)
set(FLANG_SUPPORT_R16 "1")
elseif (HAVE_LDBL_MANT_DIG_113)
set(FLANG_SUPPORT_R16 "1")
else()
set(FLANG_SUPPORT_R16 "0")
endif()
# Init variable to hold extra object files coming from the Fortran modules;
# these module files will be contributed from the CMakeLists in flang/tools/f18.
set(module_objects "")
# Create module files directly from the top-level module source directory.
# If CMAKE_CROSSCOMPILING, then the newly built flang executable was
# cross compiled, and thus can't be executed on the build system and thus
# can't be used for generating module files.
if (NOT CMAKE_CROSSCOMPILING)
foreach(filename ${MODULES})
set(depends "")
set(opts "")
if(${filename} STREQUAL "__fortran_builtins" OR
${filename} STREQUAL "__ppc_types")
elseif(${filename} STREQUAL "__ppc_intrinsics" OR
${filename} STREQUAL "mma")
set(depends ${FLANG_INTRINSIC_MODULES_DIR}/__ppc_types.mod)
elseif(${filename} STREQUAL "__cuda_device" OR
${filename} STREQUAL "cudadevice" OR
${filename} STREQUAL "cooperative_groups")
set(opts -fc1 -xcuda)
if(${filename} STREQUAL "__cuda_device")
set(depends ${FLANG_INTRINSIC_MODULES_DIR}/__cuda_builtins.mod)
elseif(${filename} STREQUAL "cudadevice")
set(depends ${FLANG_INTRINSIC_MODULES_DIR}/__cuda_device.mod)
elseif(${filename} STREQUAL "cooperative_groups")
set(depends ${FLANG_INTRINSIC_MODULES_DIR}/cudadevice.mod)
endif()
else()
set(depends ${FLANG_INTRINSIC_MODULES_DIR}/__fortran_builtins.mod)
if(${filename} STREQUAL "iso_fortran_env")
set(depends ${depends} ${FLANG_INTRINSIC_MODULES_DIR}/iso_fortran_env_impl.mod)
endif()
if(${filename} STREQUAL "ieee_arithmetic" OR
${filename} STREQUAL "ieee_exceptions")
set(depends ${depends} ${FLANG_INTRINSIC_MODULES_DIR}/__fortran_ieee_exceptions.mod)
endif()
endif()
if(NOT ${filename} STREQUAL "__fortran_type_info" AND NOT ${filename} STREQUAL "__fortran_builtins")
set(depends ${depends} ${FLANG_INTRINSIC_MODULES_DIR}/__fortran_type_info.mod)
endif()
# The module contains PPC vector types that needs the PPC target.
if(${filename} STREQUAL "__ppc_intrinsics" OR
${filename} STREQUAL "mma")
if (PowerPC IN_LIST LLVM_TARGETS_TO_BUILD)
set(opts "--target=ppc64le")
else()
# Do not compile PPC module if the target is not available.
continue()
endif()
endif()
set(decls "")
if (FLANG_SUPPORT_R16)
set(decls "-DFLANG_SUPPORT_R16")
endif()
# Some modules have an implementation part that needs to be added to the
# flang_rt.runtime library.
set(compile_with "-fsyntax-only")
set(object_output "")
set(include_in_link FALSE)
set(base ${FLANG_INTRINSIC_MODULES_DIR}/${filename})
# TODO: We may need to flag this with conditional, in case Flang is built w/o OpenMP support
add_custom_command(OUTPUT ${base}.mod ${object_output}
COMMAND ${CMAKE_COMMAND} -E make_directory ${FLANG_INTRINSIC_MODULES_DIR}
COMMAND flang ${opts} ${decls} -cpp ${compile_with} -module-dir ${FLANG_INTRINSIC_MODULES_DIR}
${FLANG_SOURCE_DIR}/module/${filename}.f90
DEPENDS flang ${FLANG_SOURCE_DIR}/module/${filename}.f90 ${FLANG_SOURCE_DIR}/module/__fortran_builtins.f90 ${depends}
)
list(APPEND MODULE_FILES ${base}.mod)
install(FILES ${base}.mod DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/flang" COMPONENT flang-module-interfaces)
# If a module has been compiled into an object file, add the file to
# the link line for the flang_rt.runtime library.
if(include_in_link)
list(APPEND module_objects ${object_output})
endif()
endforeach()
# Set a CACHE variable that is visible to the CMakeLists.txt in runtime/, so that
# the compiled Fortran modules can be added to the link line of the flang_rt.runtime
# library.
set(FORTRAN_MODULE_OBJECTS ${module_objects} CACHE INTERNAL "" FORCE)
# Special case for omp_lib.mod, because its source comes from openmp/runtime/src/include.
# It also produces two module files: omp_lib.mod and omp_lib_kinds.mod. Compile these
# files only if OpenMP support has been configured.
if (LLVM_TOOL_OPENMP_BUILD)
message(STATUS "OpenMP runtime support enabled via LLVM_ENABLE_PROJECTS, building omp_lib.mod")
set(base ${FLANG_INTRINSIC_MODULES_DIR}/omp_lib)
add_custom_command(OUTPUT ${base}.mod ${base}_kinds.mod
COMMAND ${CMAKE_COMMAND} -E make_directory ${FLANG_INTRINSIC_MODULES_DIR}
COMMAND flang -cpp -fsyntax-only ${opts} -module-dir ${FLANG_INTRINSIC_MODULES_DIR}
${CMAKE_BINARY_DIR}/projects/openmp/runtime/src/omp_lib.F90
DEPENDS flang ${FLANG_INTRINSIC_MODULES_DIR}/iso_c_binding.mod ${CMAKE_BINARY_DIR}/projects/openmp/runtime/src/omp_lib.F90 ${depends}
)
list(APPEND MODULE_FILES ${base}.mod ${base}_kinds.mod)
install(FILES ${base}.mod ${base}_kinds.mod DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/flang" COMPONENT flang-module-interfaces)
elseif ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES)
message(STATUS "OpenMP runtime support enabled via LLVM_ENABLE_RUNTIMES, assuming omp_lib.mod is built there")
else()
message(WARNING "Not building omp_lib.mod, no OpenMP runtime in either LLVM_ENABLE_PROJECTS or LLVM_ENABLE_RUNTIMES")
endif()
add_llvm_install_targets(install-flang-module-interfaces
COMPONENT flang-module-interfaces)
endif()
add_custom_target(module_files ALL DEPENDS ${MODULE_FILES})
set_target_properties(module_files PROPERTIES FOLDER "Flang/Resources")
# TODO Move this to a more suitable location
# Copy the generated omp_lib.h header file, if OpenMP support has been configured.
if (LLVM_TOOL_OPENMP_BUILD)
message(STATUS "OpenMP runtime support enabled via LLVM_ENABLE_PROJECTS, building omp_lib.h")
file(COPY ${CMAKE_BINARY_DIR}/projects/openmp/runtime/src/omp_lib.h DESTINATION "${CMAKE_BINARY_DIR}/include/flang/OpenMP/" FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
install(FILES ${CMAKE_BINARY_DIR}/include/flang/OpenMP/omp_lib.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/flang/OpenMP")
elseif ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES)
message(STATUS "OpenMP runtime support enabled via LLVM_ENABLE_RUNTIMES, assuming omp_lib.h is built there")
else()
message(STATUS "Not copying omp_lib.h, no OpenMP runtime in either LLVM_ENABLE_PROJECTS or LLVM_ENABLE_RUNTIMES")
endif()

42
flang/tools/f18/dump.cpp Normal file
View File

@ -0,0 +1,42 @@
//===-- tools/f18/dump.cpp ------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// This file defines Dump routines available for calling from the debugger.
// Each is based on operator<< for that type. There are overloadings for
// reference and pointer, and for dumping to a provided raw_ostream or errs().
#ifdef DEBUGF18
#include "llvm/Support/raw_ostream.h"
#define DEFINE_DUMP(ns, name) \
namespace ns { \
class name; \
llvm::raw_ostream &operator<<(llvm::raw_ostream &, const name &); \
} \
void Dump(llvm::raw_ostream &os, const ns::name &x) { os << x << '\n'; } \
void Dump(llvm::raw_ostream &os, const ns::name *x) { \
if (x == nullptr) \
os << "null\n"; \
else \
Dump(os, *x); \
} \
void Dump(const ns::name &x) { Dump(llvm::errs(), x); } \
void Dump(const ns::name *x) { Dump(llvm::errs(), *x); }
namespace Fortran {
DEFINE_DUMP(parser, Name)
DEFINE_DUMP(parser, CharBlock)
DEFINE_DUMP(semantics, Symbol)
DEFINE_DUMP(semantics, Scope)
DEFINE_DUMP(semantics, IntrinsicTypeSpec)
DEFINE_DUMP(semantics, DerivedTypeSpec)
DEFINE_DUMP(semantics, DeclTypeSpec)
} // namespace Fortran
#endif

24
llvm/runtimes/CMakeLists.txt
View File

@ -252,11 +252,6 @@ function(runtime_default_target)
# OpenMP tests
list(APPEND extra_targets "libomp-mod")
endif ()
if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
# The target flang-rt-mod is a dependee of check-flang needed to run its
# tests.
list(APPEND extra_targets "flang-rt-mod")
endif ()
if(LLVM_INCLUDE_TESTS)
set_property(GLOBAL APPEND PROPERTY LLVM_ALL_LIT_TESTSUITES "@${LLVM_BINARY_DIR}/runtimes/runtimes-bins/lit.tests")
@ -556,15 +551,18 @@ if(build_runtimes)
if ("openmp" IN_LIST LLVM_ENABLE_RUNTIMES AND "flang" IN_LIST LLVM_ENABLE_PROJECTS)
list(APPEND extra_args ENABLE_FORTRAN)
endif()
if("flang" IN_LIST LLVM_ENABLE_PROJECTS)
# Ensure REAL(16) support in runtimes to be consistent with compiler
if(FLANG_RUNTIME_F128_MATH_LIB OR HAVE_LDBL_MANT_DIG_113)
list(APPEND extra_cmake_args "-DFORTRAN_SUPPORTS_REAL16=TRUE")
else()
list(APPEND extra_cmake_args "-DFORTRAN_SUPPORTS_REAL16=FALSE")
endif()
endif()
if("openmp" IN_LIST LLVM_ENABLE_RUNTIMES OR "offload" IN_LIST LLVM_ENABLE_RUNTIMES)
if (${LLVM_TOOL_FLANG_BUILD})
message(STATUS "Configuring build of omp_lib.mod and omp_lib_kinds.mod via flang")
set(LIBOMP_FORTRAN_MODULES_COMPILER "${CMAKE_BINARY_DIR}/bin/flang")
set(LIBOMP_MODULES_INSTALL_PATH "${CMAKE_INSTALL_INCLUDEDIR}/flang")
# TODO: This is a workaround until flang becomes a first-class project
# in llvm/CMakeList.txt. Until then, this line ensures that flang is
# built before "openmp" is built as a runtime project. Besides "flang"
# to build the compiler, we also need to add "module_files" to make sure
# that all .mod files are also properly build.
list(APPEND extra_deps "flang" "module_files")
endif()
foreach(dep opt llvm-link llvm-extract clang llvm-offload-binary clang-nvlink-wrapper)
if(TARGET ${dep})
list(APPEND extra_deps ${dep})

11
openmp/CMakeLists.txt
View File

@ -134,8 +134,6 @@ set(OPENMP_TEST_FLAGS "" CACHE STRING
"Extra compiler flags to send to the test compiler.")
set(OPENMP_TEST_OPENMP_FLAGS ${OPENMP_TEST_COMPILER_OPENMP_FLAGS} CACHE STRING
"OpenMP compiler flag to use for testing OpenMP runtime libraries.")
set(OPENMP_TEST_Fortran_FLAGS "${CMAKE_Fortran_FLAGS}" CACHE STRING
"Additional compiler flags to use for testing Fortran programs (e.g. additional module search paths via -fintrinsic-modules-path )")
set(ENABLE_LIBOMPTARGET ON)
# Currently libomptarget cannot be compiled on Windows or MacOS X.
@ -159,18 +157,13 @@ else()
get_clang_resource_dir(LIBOMP_HEADERS_INSTALL_PATH SUBDIR include)
endif()
if(RUNTIMES_FLANG_MODULES_ENABLED)
add_subdirectory(module)
else()
message(STATUS "Building omp_lib.mod disabled by RUNTIMES_FLANG_MODULES_ENABLED='${RUNTIMES_FLANG_MODULES_ENABLED}'; libomp-mod does nothing")
add_custom_target(libomp-mod)
endif()
# Use the current compiler target to determine the appropriate runtime to build.
if("${LLVM_DEFAULT_TARGET_TRIPLE}" MATCHES "^amdgcn|^nvptx" OR
"${CMAKE_CXX_COMPILER_TARGET}" MATCHES "^amdgcn|^nvptx")
add_subdirectory(device)
else()
add_subdirectory(module)
# Build host runtime library, after LIBOMPTARGET variables are set since they
# are needed to enable time profiling support in the OpenMP runtime.
add_subdirectory(runtime)

7
openmp/README.rst
View File

@ -96,7 +96,7 @@ variable.
**CMAKE_Fortran_COMPILER** = <Fortran compiler name>
Specify the Fortran compiler. This option is only needed when
**RUNTIMES_FLANG_MODULES_ENABLED** is ``ON``. So typically, a Fortran
**LIBOMP_FORTRAN_MODULES** is ``ON`` (see below). So typically, a Fortran
compiler is not needed during the build.
**CMAKE_ASM_MASM_COMPILER** = ``ml|ml64``
@ -166,6 +166,9 @@ Options for ``libomp``
Static libraries are not supported on Windows*.
**LIBOMP_FORTRAN_MODULES** = ``OFF|ON``
Create the Fortran modules (requires Fortran compiler).
macOS* Fat Libraries
""""""""""""""""""""
On macOS* machines, it is possible to build universal (or fat) libraries which
@ -340,7 +343,7 @@ Advanced Builds with Various Options
.. code-block:: console
$ cmake -DCMAKE_C_COMPILER=icc -DCMAKE_CXX_COMPILER=icpc -DCMAKE_Fortran_COMPILER=ifort -DRUNTIMES_FLANG_MODULES_ENABLED=on ..
$ cmake -DCMAKE_C_COMPILER=icc -DCMAKE_CXX_COMPILER=icpc -DCMAKE_Fortran_COMPILER=ifort -DLIBOMP_FORTRAN_MODULES=on ..
- Have CMake find the C/C++ compiler and specify additional flags for the
preprocessor and C++ compiler.

29
openmp/cmake/modules/LibompCheckFortranFlag.cmake Normal file
View File

@ -0,0 +1,29 @@
#
#//===----------------------------------------------------------------------===//
#//
#// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
#// See https://llvm.org/LICENSE.txt for license information.
#// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#//
#//===----------------------------------------------------------------------===//
#
# Checking a fortran compiler flag
# There is no real trivial way to do this in CMake, so we implement it here
# this will have ${boolean} = TRUE if the flag succeeds, otherwise false.
function(libomp_check_fortran_flag flag boolean)
if(NOT DEFINED "${boolean}")
set(retval TRUE)
set(fortran_source
" program hello
print *, \"Hello World!\"
end program hello")
# Compiling as a part of runtimes introduces ARCH-unknown-linux-gnu as a
# part of a working directory. So adding a guard for unknown.
set(failed_regexes "[Ee]rror;[Uu]nknown[^-];[Ss]kipping")
include(CheckFortranSourceCompiles)
check_fortran_source_compiles("${fortran_source}" ${boolean} FAIL_REGEX "${failed_regexes}")
set(${boolean} ${${boolean}} PARENT_SCOPE)
endif()
endfunction()

11
openmp/cmake/modules/LibompHandleFlags.cmake
View File

@ -156,6 +156,17 @@ function(libomp_get_libflags libflags)
set(${libflags} ${libflags_local_list} PARENT_SCOPE)
endfunction()
# Fortran flags
function(libomp_get_fflags fflags)
set(fflags_local)
if(CMAKE_SIZEOF_VOID_P EQUAL 4)
libomp_append(fflags_local -m32 LIBOMP_HAVE_M32_FORTRAN_FLAG)
endif()
set(fflags_local ${fflags_local} ${LIBOMP_FFLAGS})
libomp_setup_flags(fflags_local)
set(${fflags} ${fflags_local} PARENT_SCOPE)
endfunction()
# Python generate-defs.py flags (For Windows only)
function(libomp_get_gdflags gdflags)
set(gdflags_local)

89
openmp/module/CMakeLists.txt
View File

@ -6,38 +6,71 @@
#//
#//===----------------------------------------------------------------------===//
# Build the module files if a Fortran compiler is available.
# Only LLVM_ENABLE_RUNTIMES=openmp is supported, LLVM_ENABLE_PROJECTS=openmp
# has been deprecated.
include(LibompCheckFortranFlag)
configure_file(omp_lib.F90.var "{CMAKE_CURRENT_BINARY_DIR}/omp_lib.F90" @ONLY)
set(LIBOMP_FFLAGS "" CACHE STRING
"Appended user specified Fortran compiler flags. These are only used if LIBOMP_FORTRAN_MODULES==TRUE.")
# Enabling Fortran if it is needed
if (LIBOMP_FORTRAN_MODULES)
enable_language(Fortran)
libomp_check_fortran_flag(-m32 LIBOMP_HAVE_M32_FORTRAN_FLAG)
endif ()
# Building the Fortran module files
# One compilation step creates both omp_lib.mod and omp_lib_kinds.mod
configure_file(omp_lib.F90.var omp_lib.F90 @ONLY)
configure_file(omp_lib.h.var "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.h" @ONLY)
# One compilation step creates both omp_lib.mod and omp_lib_kinds.mod. Only
# these files are used, the object file itself can be discarded.
# FIXME: Adding it to libomp.so would allow implementing Fortran API in Fortran
add_library(libomp-mod OBJECT
"{CMAKE_CURRENT_BINARY_DIR}/omp_lib.F90"
)
set_target_properties(libomp-mod PROPERTIES FOLDER "OpenMP/Fortran Modules")
# The following requests explicit building of the Fortran module files
# Workaround for gfortran to build modules with the
# omp_sched_monotonic integer parameter
if (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
target_compile_options(libomp-mod PRIVATE -fno-range-check)
set(BUILD_FORTRAN_MODULES False)
if (LIBOMP_FORTRAN_MODULES_COMPILER)
# If libomp is built as an LLVM runtime and the flang compiler is available,
# compile the Fortran module files.
message(STATUS "configuring openmp to build Fortran module files using '${LIBOMP_FORTRAN_MODULES_COMPILER}'")
set(LIBOMP_FORTRAN_SOURCE_FILE omp_lib.F90)
add_custom_target(libomp-mod ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod")
add_custom_command(
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
COMMAND ${LIBOMP_FORTRAN_MODULES_COMPILER} -cpp -fsyntax-only ${LIBOMP_FORTRAN_SOURCE_FILE} "-J${CMAKE_CURRENT_BINARY_DIR}/../runtime/src"
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${LIBOMP_FORTRAN_SOURCE_FILE}"
)
set(BUILD_FORTRAN_MODULES True)
elseif (LIBOMP_FORTRAN_MODULES)
# The following requests explicit building of the Fortran module files
# Workaround for gfortran to build modules with the
# omp_sched_monotonic integer parameter
if (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
set(ADDITIONAL_Fortran_FLAGS "-fno-range-check")
endif ()
add_custom_target(libomp-mod ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod")
set_target_properties(libomp-mod PROPERTIES FOLDER "OpenMP/Misc")
libomp_get_fflags(LIBOMP_CONFIGURED_FFLAGS)
if (CMAKE_Fortran_COMPILER_SUPPORTS_F90)
set(LIBOMP_FORTRAN_SOURCE_FILE omp_lib.F90)
else ()
message(FATAL_ERROR "Fortran module build requires Fortran 90 compiler")
endif ()
add_custom_command(
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
COMMAND ${CMAKE_Fortran_COMPILER} -c ${ADDITIONAL_Fortran_FLAGS}
${LIBOMP_CONFIGURED_FFLAGS} ${LIBOMP_FORTRAN_SOURCE_FILE} "-J${CMAKE_CURRENT_BINARY_DIR}/../runtime/src"
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${LIBOMP_FORTRAN_SOURCE_FILE}"
)
set_property(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src" PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "omp_lib${CMAKE_C_OUTPUT_EXTENSION}")
set(BUILD_FORTRAN_MODULES True)
endif ()
flang_module_target(libomp-mod PUBLIC)
if (FORTRAN_MODULE_DEPS)
add_dependencies(libomp-mod ${FORTRAN_MODULE_DEPS})
endif ()
set(destination "${LIBOMP_HEADERS_INSTALL_PATH}")
if (LIBOMP_MODULES_INSTALL_PATH)
set(destination "${LIBOMP_MODULES_INSTALL_PATH}")
if (BUILD_FORTRAN_MODULES)
set(destination "${LIBOMP_HEADERS_INSTALL_PATH}")
if (LIBOMP_MODULES_INSTALL_PATH)
set(destination "${LIBOMP_MODULES_INSTALL_PATH}")
endif ()
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod"
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.h"
DESTINATION ${destination}
)
endif ()
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.h"
DESTINATION ${destination}
)

2
openmp/runtime/CMakeLists.txt
View File

@ -422,7 +422,7 @@ if(${OPENMP_STANDALONE_BUILD})
libomp_say("Build Type -- ${CMAKE_BUILD_TYPE}")
libomp_say("Library Kind -- ${LIBOMP_LIBRARY_KIND}")
libomp_say("Library Type -- ${LIBOMP_LIB_TYPE}")
libomp_say("Fortran Modules -- ${RUNTIMES_FLANG_MODULES_ENABLED}")
libomp_say("Fortran Modules -- ${LIBOMP_FORTRAN_MODULES}")
# will say development if all zeros
if(${LIBOMP_VERSION_BUILD} STREQUAL 00000000)
set(LIBOMP_BUILD Development)

10
openmp/runtime/cmake/LibompExports.cmake
View File

@ -56,21 +56,21 @@ set(LIBOMP_EXPORTS_LIB_DIR "${LIBOMP_EXPORTS_DIR}/${libomp_platform}${libomp_suf
# Put headers in exports/ directory post build
add_custom_command(TARGET omp POST_BUILD
COMMAND ${CMAKE_COMMAND} -E make_directory ${LIBOMP_EXPORTS_CMN_DIR}
COMMAND ${CMAKE_COMMAND} -E copy ${LIBOMP_HEADERS_INTDIR}/omp.h ${LIBOMP_EXPORTS_CMN_DIR}
COMMAND ${CMAKE_COMMAND} -E copy ${LIBOMP_HEADERS_INTDIR}/ompx.h ${LIBOMP_EXPORTS_CMN_DIR}
COMMAND ${CMAKE_COMMAND} -E copy omp.h ${LIBOMP_EXPORTS_CMN_DIR}
COMMAND ${CMAKE_COMMAND} -E copy ompx.h ${LIBOMP_EXPORTS_CMN_DIR}
)
if(${LIBOMP_OMPT_SUPPORT})
add_custom_command(TARGET omp POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy omp-tools.h ${LIBOMP_EXPORTS_CMN_DIR}
)
endif()
if(RUNTIMES_FLANG_MODULES_ENABLED)
if(${LIBOMP_FORTRAN_MODULES})
# We cannot attach a POST_BUILD command to libomp-mod, so instead attach it
# to omp and ensure that libomp-mod is built before by adding a dependency
add_custom_command(TARGET omp POST_BUILD
COMMAND ${CMAKE_COMMAND} -E make_directory ${LIBOMP_EXPORTS_MOD_DIR}
COMMAND ${CMAKE_COMMAND} -E copy ${RUNTIMES_OUTPUT_RESOURCE_MOD_DIR}/omp_lib.mod ${LIBOMP_EXPORTS_MOD_DIR}
COMMAND ${CMAKE_COMMAND} -E copy ${RUNTIMES_OUTPUT_RESOURCE_MOD_DIR}/omp_lib_kinds.mod ${LIBOMP_EXPORTS_MOD_DIR}
COMMAND ${CMAKE_COMMAND} -E copy omp_lib.mod ${LIBOMP_EXPORTS_MOD_DIR}
COMMAND ${CMAKE_COMMAND} -E copy omp_lib_kinds.mod ${LIBOMP_EXPORTS_MOD_DIR}
)
add_dependencies(omp libomp-mod)
add_custom_command(TARGET omp POST_BUILD

1
openmp/runtime/test/lit.cfg
View File

@ -48,7 +48,6 @@ if config.test_fortran_compiler:
ToolSubst(
"%flang",
command=config.test_fortran_compiler,
extra_args=config.test_fortran_flags.split(),
unresolved="fatal",
),
], [config.llvm_tools_dir])

1
openmp/runtime/test/lit.site.cfg.in
View File

@ -8,7 +8,6 @@ config.test_compiler_has_omp_h = @OPENMP_TEST_COMPILER_HAS_OMP_H@
config.test_filecheck = "@OPENMP_FILECHECK_EXECUTABLE@"
config.test_not = "@OPENMP_NOT_EXECUTABLE@"
config.test_openmp_flags = "@OPENMP_TEST_OPENMP_FLAGS@"
config.test_fortran_flags = "@OPENMP_TEST_Fortran_FLAGS@"
config.test_extra_flags = "@OPENMP_TEST_FLAGS@"
config.libomp_obj_root = "@CMAKE_CURRENT_BINARY_DIR@"
config.library_dir = "@LIBOMP_LIBRARY_DIR@"

303
runtimes/CMakeLists.txt
View File

@ -85,195 +85,6 @@ include(CheckLibraryExists)
include(LLVMCheckCompilerLinkerFlag)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(GetToolchainDirs)
include(ExtendPath)
# Check whether the Fortran compiler already access to builtin modules. Sets
# HAVE_FORTRAN_INTRINSIC_MODS when returning.
#
# This must be wrapped in a function because
# cmake_push_check_state/cmake_pop_check_state is insufficient to isolate
# a compiler introspection environment, see
# https://gitlab.kitware.com/cmake/cmake/-/issues/27419
function (check_fortran_builtins_available)
if (CMAKE_Fortran_COMPILER_FORCED AND CMAKE_Fortran_COMPILER_ID STREQUAL "LLVMFlang")
# CMake's try_compile does not take a user-defined
# CMAKE_Fortran_PREPROCESS_SOURCE into account. Instead of test-compiling,
# ask Flang directly for the builtin module files.
if (NOT DEFINED HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD)
message(STATUS "Performing Test ISO_C_BINDING_PATH")
execute_process(
COMMAND ${CMAKE_Fortran_COMPILER} ${CMAKE_Fortran_FLAGS} "-print-file-name=iso_c_binding.mod"
OUTPUT_VARIABLE ISO_C_BINDING_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
set(HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD "" )
if (EXISTS "${ISO_C_BINDING_PATH}")
message(STATUS "Performing Test ISO_C_BINDING_PATH -- Success")
set(HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD TRUE CACHE INTERNAL "Existence result of ${CMAKE_Fortran_COMPILER} -print-file-name=iso_c_binding.mod")
else ()
message(STATUS "Performing Test ISO_C_BINDING_PATH -- Failed")
set(HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD FALSE CACHE INTERNAL "Existence result of ${CMAKE_Fortran_COMPILER} -print-file-name=iso_c_binding.mod")
endif ()
endif ()
else ()
cmake_push_check_state(RESET)
set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
check_fortran_source_compiles("
subroutine testroutine
use iso_c_binding
end subroutine
" HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD SRC_EXT F90)
cmake_pop_check_state()
endif ()
set(HAVE_FORTRAN_INTRINSIC_MODS "${HAVE_FORTRAN_HAS_ISO_C_BINDING_MOD}" PARENT_SCOPE)
endfunction ()
# Set options to compile Fortran module files.
#
# Usage:
#
# flang_module_target(name
# PUBLIC
# Modules files are to be used by other Fortran sources. If a library is
# compiled multiple times (e.g. static/shared, or msvcrt variants), only
# one of those can be public module files; non-public modules are still
# generated but to be forgotten deep inside the build directory to not
# conflict with each other.
# Also, installs the module with the toolchain.
# )
function (flang_module_target tgtname)
set(options PUBLIC)
cmake_parse_arguments(ARG
"${options}"
""
""
${ARGN})
if (NOT RUNTIMES_FLANG_MODULES_ENABLED)
message(WARNING "Cannot build module files for ${tgtname} when RUNTIMES_FLANG_MODULES_ENABLED is ${RUNTIMES_FLANG_MODULES_ENABLED}")
return ()
endif ()
target_compile_options(${tgtname} PRIVATE
# Let non-public modules find the public module files
"$<$<COMPILE_LANGUAGE:Fortran>:-fintrinsic-modules-path=${RUNTIMES_OUTPUT_RESOURCE_MOD_DIR}>"
# Flang bug workaround: Reformating of cooked token buffer causes identifier to be split between lines
"$<$<COMPILE_LANGUAGE:Fortran>:SHELL:-Xflang;SHELL:-fno-reformat>"
)
if (LLVM_RUNTIMES_TARGET MATCHES "^nvptx")
foreach (_arch IN LISTS RUNTIMES_DEVICE_ARCHITECTURES)
target_compile_options(${tgtname} PRIVATE
"$<$<COMPILE_LANGUAGE:Fortran>:-march=${_arch}>"
)
endforeach()
endif ()
if (ARG_PUBLIC)
set_target_properties(${tgtname}
PROPERTIES
Fortran_MODULE_DIRECTORY "${RUNTIMES_OUTPUT_RESOURCE_MOD_DIR}"
)
else ()
set_target_properties(${tgtname}
PROPERTIES
Fortran_MODULE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/${tgtname}.mod"
)
endif ()
endfunction ()
# Check whether the build environment supports building Fortran modules
# flang-rt and openmp are the only runtimes that contain Fortran modules.
set(FORTRAN_MODULE_DEPS "")
if (CMAKE_Fortran_COMPILER AND ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES OR "openmp" IN_LIST LLVM_ENABLE_RUNTIMES))
cmake_path(GET CMAKE_Fortran_COMPILER STEM _Fortran_COMPILER_STEM)
if (_Fortran_COMPILER_STEM STREQUAL "flang-new" OR _Fortran_COMPILER_STEM STREQUAL "flang")
# CMake 3.24 is the first version of CMake that directly recognizes Flang.
# LLVM's requirement is only CMake 3.20, teach CMake 3.20-3.23 how to use Flang, if used.
if (CMAKE_VERSION VERSION_LESS "3.24")
include(CMakeForceCompiler)
CMAKE_FORCE_Fortran_COMPILER("${CMAKE_Fortran_COMPILER}" "LLVMFlang")
set(CMAKE_Fortran_COMPILER_ID "LLVMFlang")
set(CMAKE_Fortran_COMPILER_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}")
set(CMAKE_Fortran_SUBMODULE_SEP "-")
set(CMAKE_Fortran_SUBMODULE_EXT ".mod")
set(CMAKE_Fortran_PREPROCESS_SOURCE
"<CMAKE_Fortran_COMPILER> -cpp <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
set(CMAKE_Fortran_FORMAT_FIXED_FLAG "-ffixed-form")
set(CMAKE_Fortran_FORMAT_FREE_FLAG "-ffree-form")
set(CMAKE_Fortran_MODDIR_FLAG "-J")
set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_ON "-cpp")
set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF "-nocpp")
set(CMAKE_Fortran_POSTPROCESS_FLAG "-ffixed-line-length-72")
set(CMAKE_Fortran_LINKER_WRAPPER_FLAG "-Wl,")
set(CMAKE_Fortran_LINKER_WRAPPER_FLAG_SEP ",")
set(CMAKE_Fortran_VERBOSE_FLAG "-v")
set(CMAKE_Fortran_LINK_MODE DRIVER)
endif ()
# Optimization flags are only passed after CMake 3.27.4
# https://gitlab.kitware.com/cmake/cmake/-/commit/1140087adea98bd8d8974e4c18979f4949b52c34
if (CMAKE_VERSION VERSION_LESS "3.27.4")
string(APPEND CMAKE_Fortran_FLAGS_DEBUG_INIT " -O0 -g")
string(APPEND CMAKE_Fortran_FLAGS_RELWITHDEBINFO_INIT " -O2 -g")
string(APPEND CMAKE_Fortran_FLAGS_RELEASE_INIT " -O3")
endif ()
# Only CMake 3.28+ pass --target= to Flang. But for cross-compiling, including
# to nvptx amd amdgpu targets, passing the target triple is essential.
# https://gitlab.kitware.com/cmake/cmake/-/commit/e9af7b968756e72553296ecdcde6f36606a0babf
if (CMAKE_VERSION VERSION_LESS "3.28")
set(CMAKE_Fortran_COMPILE_OPTIONS_TARGET "--target=")
endif ()
endif ()
include(CheckFortranSourceCompiles)
include(CheckLanguage)
set(RUNTIMES_FLANG_MODULES_ENABLED_default OFF)
check_language(Fortran)
if (CMAKE_Fortran_COMPILER)
enable_language(Fortran)
if (CMAKE_Fortran_COMPILER_ID STREQUAL "LLVMFlang" AND "flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
# In a bootstrapping build (or any runtimes-build that includes flang-rt),
# the intrinsic modules are not built yet. Targets can depend on
# flang-rt-mod to ensure that flang-rt's modules are built first.
set(FORTRAN_MODULE_DEPS flang-rt-mod)
set(RUNTIMES_FLANG_MODULES_ENABLED_default ON)
else ()
# Check whether building modules works, avoid causing the entire build to
# fail because of Fortran. The primary situation we want to support here
# is Flang, or its intrinsic modules were built separately in a
# non-bootstrapping build.
check_fortran_builtins_available()
if (HAVE_FORTRAN_INTRINSIC_MODS)
set(RUNTIMES_FLANG_MODULES_ENABLED_default ON)
message(STATUS "${LLVM_SUBPROJECT_TITLE}: Non-bootstrapping Fortran modules build (${CMAKE_Fortran_COMPILER_ID} located at ${CMAKE_Fortran_COMPILER})")
else ()
message(STATUS "Not compiling Flang modules: Not passing smoke check")
endif ()
endif ()
endif ()
option(RUNTIMES_FLANG_MODULES_ENABLED "Build Fortran modules" "${RUNTIMES_FLANG_MODULES_ENABLED_default}")
else ()
set(RUNTIMES_FLANG_MODULES_ENABLED NO)
endif ()
# Determine whether we are in the runtimes/runtimes-bins directory of a
@ -283,6 +94,17 @@ if (LLVM_LIBRARY_DIR AND LLVM_TOOLS_BINARY_DIR AND PACKAGE_VERSION)
set(LLVM_TREE_AVAILABLE ON)
endif()
if(LLVM_TREE_AVAILABLE)
# Setting these variables will allow the sub-build to put their outputs into
# the library and bin directories of the top-level build.
set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
else()
# Use own build directory for artifact output.
set(LLVM_LIBRARY_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}")
set(LLVM_RUNTIME_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
endif()
# CMake omits default compiler include paths, but in runtimes build, we use
# -nostdinc and -nostdinc++ and control include paths manually so this behavior
# is undesirable. Filtering CMAKE_{LANG}_IMPLICIT_INCLUDE_DIRECTORIES to remove
@ -414,109 +236,6 @@ if(CMAKE_C_COMPILER_ID MATCHES "Clang")
endif()
endif()
# Determine output and install paths based on LLVM_TARGET_TRIPLE
if(LLVM_TREE_AVAILABLE)
# In a bootstrap build emit the libraries into a default search path in the
# build directory of the just-built compiler. This allows using the
# just-built compiler without specifying paths to runtime libraries.
# LLVM_LIBRARY_OUTPUT_INTDIR/LLVM_RUNTIME_OUTPUT_INTDIR is used by
# AddLLVM.cmake as artifact output locations.
set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
# Despite Clang in the name, get_clang_resource_dir does not depend on Clang
# being added to the build. Flang uses the same resource dir as Clang.
include(GetClangResourceDir)
get_clang_resource_dir(RUNTIMES_OUTPUT_RESOURCE_DIR PREFIX "${LLVM_LIBRARY_OUTPUT_INTDIR}/..")
get_clang_resource_dir(RUNTIMES_INSTALL_RESOURCE_PATH_DEFAULT)
else()
# In a standalone runtimes build, do not write into LLVM_BINARY_DIR. It may be
# read-only and/or shared by multiple runtimes with different build
# configurations (e.g. Debug/Release). Use the runtime's own lib dir like any
# non-toolchain library. Use own build directory for artifact output.
set(LLVM_LIBRARY_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}")
set(LLVM_RUNTIME_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
# For the install prefix, still use the resource dir assuming that Flang will
# be installed there using the same prefix. This is to not have a difference
# between bootstrap and standalone runtimes builds.
set(RUNTIMES_OUTPUT_RESOURCE_DIR "${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/clang/${LLVM_VERSION_MAJOR}")
set(RUNTIMES_INSTALL_RESOURCE_PATH_DEFAULT "lib${LLVM_LIBDIR_SUFFIX}/clang/${LLVM_VERSION_MAJOR}")
endif()
# Determine build and install paths.
# The build path is absolute, but the install dir is relative, CMake's install
# command has to apply CMAKE_INSTALL_PREFIX itself.
# FIXME: For shared libraries, the toolchain resource lib dir is not a good
# destination because it is not a ld.so default search path.
# The machine where the executable is eventually executed may not be the
# machine where the Flang compiler and its resource dir is installed, so
# setting RPath by the driver is not an solution. It should belong into
# /usr/lib/<triple>/lib<name>.so, like e.g. libgcc_s.so.
# But the linker as invoked by the Flang driver also requires
# libflang_rt.so to be found when linking and the resource lib dir is
# the only reliable location.
get_toolchain_library_subdir(toolchain_lib_subdir)
extend_path(RUNTIMES_OUTPUT_RESOURCE_LIB_DIR "${RUNTIMES_OUTPUT_RESOURCE_DIR}" "${toolchain_lib_subdir}")
set(RUNTIMES_INSTALL_RESOURCE_PATH "${RUNTIMES_INSTALL_RESOURCE_PATH_DEFAULT}" CACHE PATH "Path to install headers, runtime libraries, and Fortran modules to (default: Clang resource dir)")
extend_path(RUNTIMES_INSTALL_RESOURCE_LIB_PATH "${RUNTIMES_INSTALL_RESOURCE_PATH}" "${toolchain_lib_subdir}")
cmake_path(NORMAL_PATH RUNTIMES_OUTPUT_RESOURCE_DIR)
cmake_path(NORMAL_PATH RUNTIMES_INSTALL_RESOURCE_PATH)
cmake_path(NORMAL_PATH RUNTIMES_OUTPUT_RESOURCE_LIB_DIR)
cmake_path(NORMAL_PATH RUNTIMES_INSTALL_RESOURCE_LIB_PATH)
if (RUNTIMES_FLANG_MODULES_ENABLED)
if (CMAKE_Fortran_COMPILER_ID STREQUAL "LLVMFlang")
# Flang expects its builtin modules in Clang's resource directory
get_toolchain_module_subdir(toolchain_mod_subdir)
extend_path(RUNTIMES_OUTPUT_RESOURCE_MOD_DIR "${RUNTIMES_OUTPUT_RESOURCE_DIR}" "${toolchain_mod_subdir}")
extend_path(RUNTIMES_INSTALL_RESOURCE_MOD_PATH "${RUNTIMES_INSTALL_RESOURCE_PATH}" "${toolchain_mod_subdir}")
else ()
# For non-Flang compilers, avoid the risk of Flang accidentally picking them up.
extend_path(RUNTIMES_OUTPUT_RESOURCE_MOD_DIR "${RUNTIMES_OUTPUT_RESOURCE_DIR}" "finclude-${CMAKE_Fortran_COMPILER_ID}")
extend_path(RUNTIMES_INSTALL_RESOURCE_MOD_PATH "${RUNTIMES_INSTALL_RESOURCE_PATH}" "finclude-${CMAKE_Fortran_COMPILER_ID}")
endif ()
cmake_path(NORMAL_PATH RUNTIMES_OUTPUT_RESOURCE_MOD_DIR)
cmake_path(NORMAL_PATH RUNTIMES_INSTALL_RESOURCE_MOD_PATH)
# No way to find out which mod files are built by a target, so install the
# entire output directory
# https://stackoverflow.com/questions/52712416/cmake-fortran-module-directory-to-be-used-with-add-library
set(destination "${RUNTIMES_INSTALL_RESOURCE_MOD_PATH}/..")
cmake_path(NORMAL_PATH destination)
install(DIRECTORY "${RUNTIMES_OUTPUT_RESOURCE_MOD_DIR}"
DESTINATION "${destination}"
)
endif ()
if (RUNTIMES_FLANG_MODULES_ENABLED)
set(RUNTIMES_DEVICE_ARCHITECTURES "all" CACHE STRING
"List of offload device architectures to be used to compile the Fortran offload code (e.g. 'gfx1103;sm_90')"
)
if (RUNTIMES_DEVICE_ARCHITECTURES STREQUAL "all")
# TODO: support auto detection on the build system.
set(all_amdgpu_architectures
"gfx700;gfx701;gfx801;gfx803;gfx900;gfx902;gfx906"
"gfx908;gfx90a;gfx90c;gfx940;gfx1010;gfx1030"
"gfx1031;gfx1032;gfx1033;gfx1034;gfx1035;gfx1036"
"gfx1100;gfx1101;gfx1102;gfx1103;gfx1150;gfx1151"
"gfx1152;gfx1153")
set(all_nvptx_architectures
"sm_35;sm_37;sm_50;sm_52;sm_53;sm_60;sm_61;sm_62"
"sm_70;sm_72;sm_75;sm_80;sm_86;sm_89;sm_90")
set(all_gpu_architectures
"${all_amdgpu_architectures};${all_nvptx_architectures}")
set(RUNTIMES_DEVICE_ARCHITECTURES ${all_gpu_architectures})
endif()
list(REMOVE_DUPLICATES RUNTIMES_DEVICE_ARCHITECTURES)
endif ()
option(LLVM_INCLUDE_TESTS "Generate build targets for the runtimes unit tests." ON)
option(LLVM_INCLUDE_DOCS "Generate build targets for the runtimes documentation." ON)
option(LLVM_ENABLE_SPHINX "Use Sphinx to generate the runtimes documentation." OFF)