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llvm-project/openmp/runtime/cmake/config-ix.cmake

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Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
#
#//===----------------------------------------------------------------------===//
#//
Update more file headers across all of the LLVM projects in the monorepo to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
2019-01-19 18:56:40 +08:00
#// 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
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
#//
#//===----------------------------------------------------------------------===//
#
include(CheckCCompilerFlag)
include(CheckCSourceCompiles)
[OpenMP] Add support for Intel's umonitor/umwait These changes add support for Intel's umonitor/umwait usage in wait code, for architectures that support those intrinsic functions. Usage of umonitor/umwait is off by default, but can be turned on by setting the KMP_USER_LEVEL_MWAIT environment variable. Differential Revision: https://reviews.llvm.org/D91189
2020-12-02 04:03:40 +08:00
include(CheckCXXSourceCompiles)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
include(CheckCXXCompilerFlag)
Adding Hwloc library option for affinity mechanism These changes allow libhwloc to be used as the topology discovery/affinity mechanism for libomp. It is supported on Unices. The code additions: * Canonicalize KMP_CPU_* interface macros so bitmask operations are implementation independent and work with both hwloc bitmaps and libomp bitmaps. So there are new KMP_CPU_ALLOC_* and KMP_CPU_ITERATE() macros and the like. These are all in kmp.h and appropriately placed. * Hwloc topology discovery code in kmp_affinity.cpp. This uses the hwloc interface to create a libomp address2os object which the rest of libomp knows how to handle already. * To build, use -DLIBOMP_USE_HWLOC=on and -DLIBOMP_HWLOC_INSTALL_DIR=/path/to/install/dir [default /usr/local]. If CMake can't find the library or hwloc.h, then it will tell you and exit. Differential Revision: http://reviews.llvm.org/D13991 llvm-svn: 254320
2015-12-01 04:02:59 +08:00
include(CheckIncludeFile)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
include(CheckLibraryExists)
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
include(CheckIncludeFiles)
[OpenMP] changing OMP rtl to use shared memory instead of env variable Patch by Erdner, Todd <todd.erdner@intel.com> Differential Revision: https://reviews.llvm.org/D89898
2020-10-27 00:02:21 +08:00
include(CheckSymbolExists)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
include(LibompCheckLinkerFlag)
include(LibompCheckFortranFlag)
# Check for versioned symbols
function(libomp_check_version_symbols retval)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(source_code
"#include <stdio.h>
void func1() { printf(\"Hello\"); }
void func2() { printf(\"World\"); }
__asm__(\".symver func1, func@VER1\");
__asm__(\".symver func2, func@VER2\");
int main() {
func1();
func2();
return 0;
}")
set(version_script_source "VER1 { }; VER2 { } VER1;")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/__version_script.txt "${version_script_source}")
set(CMAKE_REQUIRED_FLAGS -Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/__version_script.txt)
check_c_source_compiles("${source_code}" ${retval})
set(${retval} ${${retval}} PARENT_SCOPE)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/__version_script.txt)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endfunction()
# Includes the architecture flag in both compile and link phase
function(libomp_check_architecture_flag flag retval)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(CMAKE_REQUIRED_FLAGS "${flag}")
check_c_compiler_flag("${flag}" ${retval})
set(${retval} ${${retval}} PARENT_SCOPE)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endfunction()
[OpenMP] Turn on -Wall compiler warnings by default Instead, maintain a list of disabled options to still build libomp and libomptarget without warnings. This includes -Wno-error and -Wno-pedantic to silence warnings that LLVM enables when building in-tree. I tested the following compilers: * Clang 6.0, 7.0, 8.0 * GCC 4.8.5 (CentOS 7), GCC 6, 7, 8, 9 * Intel Compiler 16, 17, 18, 19 RFC thread on openmp-dev mailing list: http://lists.llvm.org/pipermail/openmp-dev/2019-August/002668.html Differential Revision: https://reviews.llvm.org/D65867 llvm-svn: 368999
2019-08-15 21:11:50 +08:00
# Checking CXX, Linker Flags
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
check_cxx_compiler_flag(-fno-exceptions LIBOMP_HAVE_FNO_EXCEPTIONS_FLAG)
Introduce dynamic affinity dispatch capabilities This set of changes enables the affinity interface (Either the preexisting native operating system or HWLOC) to be dynamically set at runtime initialization. The point of this change is that we were seeing performance degradations when using HWLOC. This allows the user to use the old affinity mechanisms which on large machines (>64 cores) makes a large difference in initialization time. These changes mostly move affinity code under a small class hierarchy: KMPAffinity class Mask {} KMPNativeAffinity : public KMPAffinity class Mask : public KMPAffinity::Mask KMPHwlocAffinity class Mask : public KMPAffinity::Mask Since all interface functions (for both affinity and the mask implementation) are virtual, the implementation can be chosen at runtime initialization. Differential Revision: https://reviews.llvm.org/D26356 llvm-svn: 286890
2016-11-15 05:08:35 +08:00
check_cxx_compiler_flag(-fno-rtti LIBOMP_HAVE_FNO_RTTI_FLAG)
[OpenMP] Turn on -Wall compiler warnings by default Instead, maintain a list of disabled options to still build libomp and libomptarget without warnings. This includes -Wno-error and -Wno-pedantic to silence warnings that LLVM enables when building in-tree. I tested the following compilers: * Clang 6.0, 7.0, 8.0 * GCC 4.8.5 (CentOS 7), GCC 6, 7, 8, 9 * Intel Compiler 16, 17, 18, 19 RFC thread on openmp-dev mailing list: http://lists.llvm.org/pipermail/openmp-dev/2019-August/002668.html Differential Revision: https://reviews.llvm.org/D65867 llvm-svn: 368999
2019-08-15 21:11:50 +08:00
check_cxx_compiler_flag(-Wno-class-memaccess LIBOMP_HAVE_WNO_CLASS_MEMACCESS_FLAG)
check_cxx_compiler_flag(-Wno-covered-switch-default LIBOMP_HAVE_WNO_COVERED_SWITCH_DEFAULT_FLAG)
check_cxx_compiler_flag(-Wno-frame-address LIBOMP_HAVE_WNO_FRAME_ADDRESS_FLAG)
check_cxx_compiler_flag(-Wno-strict-aliasing LIBOMP_HAVE_WNO_STRICT_ALIASING_FLAG)
check_cxx_compiler_flag(-Wstringop-overflow=0 LIBOMP_HAVE_WSTRINGOP_OVERFLOW_FLAG)
check_cxx_compiler_flag(-Wno-stringop-truncation LIBOMP_HAVE_WNO_STRINGOP_TRUNCATION_FLAG)
check_cxx_compiler_flag(-Wno-switch LIBOMP_HAVE_WNO_SWITCH_FLAG)
check_cxx_compiler_flag(-Wno-uninitialized LIBOMP_HAVE_WNO_UNINITIALIZED_FLAG)
check_cxx_compiler_flag(-Wno-unused-but-set-variable LIBOMP_HAVE_WNO_UNUSED_BUT_SET_VARIABLE_FLAG)
[OpenMP] Silence more warning flags This silences warnings like these, in mingw builds with clang: runtime/src/kmp_atomic.h:1021:13: warning: '__kmpc_atomic_cmplx8_rd' has C-linkage specified, but returns user-defined type 'kmp_cmplx64' (aka '__kmp_cmplx64_t') which is incompatible with C [-Wreturn-type-c-linkage] runtime/src/z_Windows_NT_util.cpp:479:17: warning: cast from 'volatile void *' to 'type-parameter-0-0 *' drops volatile qualifier [-Wcast-qual] flag = (C *)th->th.th_sleep_loc; runtime/src/z_Windows_NT_util.cpp:1321:14: warning: cast to 'void *' from smaller integer type 'DWORD' (aka 'unsigned long') [-Wint-to-void-pointer-cast] } else if ((void *)exit_val != (void *)th) { Differential Revision: https://reviews.llvm.org/D96585
2021-02-12 17:38:25 +08:00
check_cxx_compiler_flag(-Wno-return-type-c-linkage LIBOMP_HAVE_WNO_RETURN_TYPE_C_LINKAGE_FLAG)
check_cxx_compiler_flag(-Wno-cast-qual LIBOMP_HAVE_WNO_CAST_QUAL_FLAG)
check_cxx_compiler_flag(-Wno-int-to-void-pointer-cast LIBOMP_HAVE_WNO_INT_TO_VOID_POINTER_CAST_FLAG)
[OpenMP] libomp: Handle implicit conversion warnings This patch partially prepares the runtime source code to be built with -Wconversion, which should trigger warnings if any implicit conversions can possibly change a value. For builds done with icc or gcc, all such warnings are handled in this patch. clang gives a much longer list of warnings, particularly for sign conversions, which the other compilers don't report. The -Wconversion flag is commented into cmake files, but I'm not going to turn it on. If someone thinks it is important, and wants to fix all the clang warnings, they are welcome to. Types of changes made here involve either improving the consistency of types used so that no conversion is needed, or else performing careful explicit conversions, when we're sure a problem won't arise. Patch is a combination of changes by Terry Wilmarth and Johnny Peyton. Differential Revision: https://reviews.llvm.org/D92942
2020-12-31 05:39:48 +08:00
# check_cxx_compiler_flag(-Wconversion LIBOMP_HAVE_WCONVERSION_FLAG)
[OpenMP] Turn on -Wall compiler warnings by default Instead, maintain a list of disabled options to still build libomp and libomptarget without warnings. This includes -Wno-error and -Wno-pedantic to silence warnings that LLVM enables when building in-tree. I tested the following compilers: * Clang 6.0, 7.0, 8.0 * GCC 4.8.5 (CentOS 7), GCC 6, 7, 8, 9 * Intel Compiler 16, 17, 18, 19 RFC thread on openmp-dev mailing list: http://lists.llvm.org/pipermail/openmp-dev/2019-August/002668.html Differential Revision: https://reviews.llvm.org/D65867 llvm-svn: 368999
2019-08-15 21:11:50 +08:00
check_cxx_compiler_flag(-msse2 LIBOMP_HAVE_MSSE2_FLAG)
check_cxx_compiler_flag(-ftls-model=initial-exec LIBOMP_HAVE_FTLS_MODEL_FLAG)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
libomp_check_architecture_flag(-mmic LIBOMP_HAVE_MMIC_FLAG)
libomp_check_architecture_flag(-m32 LIBOMP_HAVE_M32_FLAG)
if(WIN32)
Support clang compiling under windows-gnu and windows-msvc Patch by Peiyuan Song <squallatf@gmail.com> Differential Revision: https://reviews.llvm.org/D53422 llvm-svn: 348756
2018-12-10 21:45:00 +08:00
if(MSVC)
# Check Windows MSVC style flags.
check_cxx_compiler_flag(/EHsc LIBOMP_HAVE_EHSC_FLAG)
check_cxx_compiler_flag(/GS LIBOMP_HAVE_GS_FLAG)
check_cxx_compiler_flag(/Oy- LIBOMP_HAVE_Oy__FLAG)
check_cxx_compiler_flag(/arch:SSE2 LIBOMP_HAVE_ARCH_SSE2_FLAG)
check_cxx_compiler_flag(/Qsafeseh LIBOMP_HAVE_QSAFESEH_FLAG)
endif()
[OpenMP] Turn on -Wall compiler warnings by default Instead, maintain a list of disabled options to still build libomp and libomptarget without warnings. This includes -Wno-error and -Wno-pedantic to silence warnings that LLVM enables when building in-tree. I tested the following compilers: * Clang 6.0, 7.0, 8.0 * GCC 4.8.5 (CentOS 7), GCC 6, 7, 8, 9 * Intel Compiler 16, 17, 18, 19 RFC thread on openmp-dev mailing list: http://lists.llvm.org/pipermail/openmp-dev/2019-August/002668.html Differential Revision: https://reviews.llvm.org/D65867 llvm-svn: 368999
2019-08-15 21:11:50 +08:00
check_cxx_compiler_flag(-mrtm LIBOMP_HAVE_MRTM_FLAG)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
# It is difficult to create a dummy masm assembly file
# and then check the MASM assembler to see if these flags exist and work,
# so we assume they do for Windows.
set(LIBOMP_HAVE_SAFESEH_MASM_FLAG TRUE)
set(LIBOMP_HAVE_COFF_MASM_FLAG TRUE)
# Change Windows flags /MDx to /MTx
foreach(libomp_lang IN ITEMS C CXX)
foreach(libomp_btype IN ITEMS DEBUG RELWITHDEBINFO RELEASE MINSIZEREL)
string(REPLACE "/MD" "/MT"
CMAKE_${libomp_lang}_FLAGS_${libomp_btype}
"${CMAKE_${libomp_lang}_FLAGS_${libomp_btype}}"
)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endforeach()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
endforeach()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
else()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
# It is difficult to create a dummy assembly file that compiles into an
[OpenMP] NFC: Fix trivial typos in comments Reviewers: jdoerfert, Jim Reviewed By: Jim Subscribers: Jim, mgorny, guansong, jfb, openmp-commits Tags: #openmp Differential Revision: https://reviews.llvm.org/D72285
2020-01-07 14:03:31 +08:00
# executable for every architecture and then check the C compiler to
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
# see if -x assembler-with-cpp exists and works, so we assume it does for non-Windows.
set(LIBOMP_HAVE_X_ASSEMBLER_WITH_CPP_FLAG TRUE)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
if(${LIBOMP_FORTRAN_MODULES})
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
libomp_check_fortran_flag(-m32 LIBOMP_HAVE_M32_FORTRAN_FLAG)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
[OpenMP] changing OMP rtl to use shared memory instead of env variable Patch by Erdner, Todd <todd.erdner@intel.com> Differential Revision: https://reviews.llvm.org/D89898
2020-10-27 00:02:21 +08:00
# Check for Unix shared memory
check_symbol_exists(shm_open "sys/mman.h" LIBOMP_HAVE_SHM_OPEN_NO_LRT)
if (NOT LIBOMP_HAVE_SHM_OPEN_NO_LRT)
set(CMAKE_REQUIRED_LIBRARIES -lrt)
check_symbol_exists(shm_open "sys/mman.h" LIBOMP_HAVE_SHM_OPEN_WITH_LRT)
set(CMAKE_REQUIRED_LIBRARIES)
endif()
[OpenMP] libomp: Add new experimental barrier: two-level distributed barrier Two-level distributed barrier is a new experimental barrier designed for Intel hardware that has better performance in some cases than the default hyper barrier. This barrier is designed to handle fine granularity parallelism where barriers are used frequently with little compute and memory access between barriers. There is no need to use it for codes with few barriers and large granularity compute, or memory intensive applications, as little difference will be seen between this barrier and the default hyper barrier. This barrier is designed to work optimally with a fixed number of threads, and has a significant setup time, so should NOT be used in situations where the number of threads in a team is varied frequently. The two-level distributed barrier is off by default -- hyper barrier is used by default. To use this barrier, you must set all barrier patterns to use this type, because it will not work with other barrier patterns. Thus, to turn it on, the following settings are required: KMP_FORKJOIN_BARRIER_PATTERN=dist,dist KMP_PLAIN_BARRIER_PATTERN=dist,dist KMP_REDUCTION_BARRIER_PATTERN=dist,dist Branching factors (set with KMP_FORKJOIN_BARRIER, KMP_PLAIN_BARRIER, and KMP_REDUCTION_BARRIER) are ignored by the two-level distributed barrier. Patch fixed for ITTNotify disabled builds and non-x86 builds Co-authored-by: Jonathan Peyton <jonathan.l.peyton@intel.com> Co-authored-by: Vladislav Vinogradov <vlad.vinogradov@intel.com> Differential Revision: https://reviews.llvm.org/D103121
2021-07-15 23:28:47 +08:00
# Check for aligned memory allocator function
check_include_file(xmmintrin.h LIBOMP_HAVE_XMMINTRIN_H)
set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
if (LIBOMP_HAVE_XMMINTRIN_H)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -DLIBOMP_HAVE_XMMINTRIN_H")
endif()
set(source_code "// check for _mm_malloc
#ifdef LIBOMP_HAVE_XMMINTRIN_H
#include <xmmintrin.h>
#endif
int main() { void *ptr = _mm_malloc(sizeof(int) * 1000, 64); _mm_free(ptr); return 0; }")
check_cxx_source_compiles("${source_code}" LIBOMP_HAVE__MM_MALLOC)
set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
check_symbol_exists(aligned_alloc "stdlib.h" LIBOMP_HAVE_ALIGNED_ALLOC)
check_symbol_exists(posix_memalign "stdlib.h" LIBOMP_HAVE_POSIX_MEMALIGN)
check_symbol_exists(_aligned_malloc "malloc.h" LIBOMP_HAVE__ALIGNED_MALLOC)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
# Check linker flags
if(WIN32)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
libomp_check_linker_flag(/SAFESEH LIBOMP_HAVE_SAFESEH_FLAG)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
elseif(NOT APPLE)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
libomp_check_linker_flag(-Wl,-x LIBOMP_HAVE_X_FLAG)
libomp_check_linker_flag(-Wl,--warn-shared-textrel LIBOMP_HAVE_WARN_SHARED_TEXTREL_FLAG)
libomp_check_linker_flag(-Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
libomp_check_linker_flag("-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
libomp_check_linker_flag(-static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
libomp_check_linker_flag(-Wl,-z,noexecstack LIBOMP_HAVE_Z_NOEXECSTACK_FLAG)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
# Check Intel(R) C Compiler specific flags
[OpenMP][libomp] Introduce oneAPI compiler support Introduce KMP_COMPILER_ICX macro to represent compilation with oneAPI compiler. Fixup flag detection and compiler ID detection in CMake. Older CMake's detect IntelLLVM as Clang. Fix compiler warnings. Fixup many of the tests to have non-empty parallel regions as they are elided by oneAPI compiler.
2022-02-01 00:04:49 +08:00
if(CMAKE_C_COMPILER_ID STREQUAL "Intel" OR CMAKE_C_COMPILER_ID STREQUAL "IntelLLVM")
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
check_cxx_compiler_flag(/Qlong_double LIBOMP_HAVE_LONG_DOUBLE_FLAG)
check_cxx_compiler_flag(/Qdiag-disable:177 LIBOMP_HAVE_DIAG_DISABLE_177_FLAG)
check_cxx_compiler_flag(/Qinline-min-size=1 LIBOMP_HAVE_INLINE_MIN_SIZE_FLAG)
check_cxx_compiler_flag(-Qoption,cpp,--extended_float_types LIBOMP_HAVE_EXTENDED_FLOAT_TYPES_FLAG)
check_cxx_compiler_flag(-falign-stack=maintain-16-byte LIBOMP_HAVE_FALIGN_STACK_FLAG)
check_cxx_compiler_flag("-opt-streaming-stores never" LIBOMP_HAVE_OPT_STREAMING_STORES_FLAG)
libomp_check_linker_flag(-static-intel LIBOMP_HAVE_STATIC_INTEL_FLAG)
libomp_check_linker_flag(-no-intel-extensions LIBOMP_HAVE_NO_INTEL_EXTENSIONS_FLAG)
check_library_exists(irc_pic _intel_fast_memcpy "" LIBOMP_HAVE_IRC_PIC_LIBRARY)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
# Checking Threading requirements
find_package(Threads REQUIRED)
if(WIN32)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
if(NOT CMAKE_USE_WIN32_THREADS_INIT)
libomp_error_say("Need Win32 thread interface on Windows.")
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
else()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
if(NOT CMAKE_USE_PTHREADS_INIT)
libomp_error_say("Need pthread interface on Unix-like systems.")
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
[OpenMP] Add support for Intel's umonitor/umwait These changes add support for Intel's umonitor/umwait usage in wait code, for architectures that support those intrinsic functions. Usage of umonitor/umwait is off by default, but can be turned on by setting the KMP_USER_LEVEL_MWAIT environment variable. Differential Revision: https://reviews.llvm.org/D91189
2020-12-02 04:03:40 +08:00
# Checking for x86-specific waitpkg and rtm attribute and intrinsics
if (IA32 OR INTEL64)
check_include_file(immintrin.h LIBOMP_HAVE_IMMINTRIN_H)
if (NOT LIBOMP_HAVE_IMMINTRIN_H)
check_include_file(intrin.h LIBOMP_HAVE_INTRIN_H)
endif()
check_cxx_source_compiles("__attribute__((target(\"rtm\")))
int main() {return 0;}" LIBOMP_HAVE_ATTRIBUTE_RTM)
check_cxx_source_compiles("__attribute__((target(\"waitpkg\")))
int main() {return 0;}" LIBOMP_HAVE_ATTRIBUTE_WAITPKG)
libomp_append(CMAKE_REQUIRED_DEFINITIONS -DIMMINTRIN_H LIBOMP_HAVE_IMMINTRIN_H)
libomp_append(CMAKE_REQUIRED_DEFINITIONS -DINTRIN_H LIBOMP_HAVE_INTRIN_H)
libomp_append(CMAKE_REQUIRED_DEFINITIONS -DATTRIBUTE_WAITPKG LIBOMP_HAVE_ATTRIBUTE_WAITPKG)
libomp_append(CMAKE_REQUIRED_DEFINITIONS -DATTRIBUTE_RTM LIBOMP_HAVE_ATTRIBUTE_RTM)
set(source_code "// check for attribute and wait pkg intrinsics
#ifdef IMMINTRIN_H
#include <immintrin.h>
#endif
#ifdef INTRIN_H
#include <intrin.h>
#endif
#ifdef ATTRIBUTE_WAITPKG
__attribute__((target(\"waitpkg\")))
#endif
static inline int __kmp_umwait(unsigned hint, unsigned long long counter) {
return _umwait(hint, counter);
}
int main() { int a = __kmp_umwait(0, 1000); return a; }")
check_cxx_source_compiles("${source_code}" LIBOMP_HAVE_WAITPKG_INTRINSICS)
[OpenMP] Fix clang-cl build error regarding TSX intrinsics Fix for https://bugs.llvm.org/show_bug.cgi?id=49339 The CMake check for the RTM intrinsics needs the -mrtm flag to be set during the test. This way clang-cl correctly detects it has the _xbegin() intrinsic. Otherwise, the CMake check fails. Differential Revision: https://reviews.llvm.org/D97413
2021-03-02 21:44:15 +08:00
set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
if (LIBOMP_HAVE_MRTM_FLAG)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mrtm")
endif()
[OpenMP] Add support for Intel's umonitor/umwait These changes add support for Intel's umonitor/umwait usage in wait code, for architectures that support those intrinsic functions. Usage of umonitor/umwait is off by default, but can be turned on by setting the KMP_USER_LEVEL_MWAIT environment variable. Differential Revision: https://reviews.llvm.org/D91189
2020-12-02 04:03:40 +08:00
set(source_code "// check for attribute rtm and rtm intrinsics
#ifdef IMMINTRIN_H
#include <immintrin.h>
#endif
#ifdef INTRIN_H
#include <intrin.h>
#endif
#ifdef ATTRIBUTE_RTM
__attribute__((target(\"rtm\")))
#endif
static inline int __kmp_xbegin() {
return _xbegin();
}
int main() { int a = __kmp_xbegin(); return a; }")
check_cxx_source_compiles("${source_code}" LIBOMP_HAVE_RTM_INTRINSICS)
set(CMAKE_REQUIRED_DEFINITIONS)
[OpenMP] Fix clang-cl build error regarding TSX intrinsics Fix for https://bugs.llvm.org/show_bug.cgi?id=49339 The CMake check for the RTM intrinsics needs the -mrtm flag to be set during the test. This way clang-cl correctly detects it has the _xbegin() intrinsic. Otherwise, the CMake check fails. Differential Revision: https://reviews.llvm.org/D97413
2021-03-02 21:44:15 +08:00
set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
[OpenMP] Add support for Intel's umonitor/umwait These changes add support for Intel's umonitor/umwait usage in wait code, for architectures that support those intrinsic functions. Usage of umonitor/umwait is off by default, but can be turned on by setting the KMP_USER_LEVEL_MWAIT environment variable. Differential Revision: https://reviews.llvm.org/D91189
2020-12-02 04:03:40 +08:00
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
# Find perl executable
# Perl is used to create omp.h (and other headers) along with kmp_i18n_id.inc and kmp_i18n_default.inc
find_package(Perl REQUIRED)
Bypass Perl modules in build system This change fixes the bug: https://llvm.org/bugs/show_bug.cgi?id=25975 by bypassing the perl module files which try to deduce system information. These perl modules files don't offer useful information and are from the original build system. They can be removed after this change. llvm-svn: 258843
2016-01-27 03:44:31 +08:00
# The perl scripts take the --os=/--arch= flags which expect a certain format for operating systems and arch's.
# Until the perl scripts are removed, the most portable way to handle this is to have all operating systems that
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
# are neither Windows nor Mac (Most Unix flavors) be considered lin to the perl scripts. This is rooted
# in that all the Perl scripts check the operating system and will fail if it isn't "valid". This
# temporary solution lets us avoid trying to enumerate all the possible OS values inside the Perl modules.
if(WIN32)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_PERL_SCRIPT_OS win)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
elseif(APPLE)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_PERL_SCRIPT_OS mac)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
else()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_PERL_SCRIPT_OS lin)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
Bypass Perl modules in build system This change fixes the bug: https://llvm.org/bugs/show_bug.cgi?id=25975 by bypassing the perl module files which try to deduce system information. These perl modules files don't offer useful information and are from the original build system. They can be removed after this change. llvm-svn: 258843
2016-01-27 03:44:31 +08:00
if(IA32)
set(LIBOMP_PERL_SCRIPT_ARCH 32)
elseif(MIC)
set(LIBOMP_PERL_SCRIPT_ARCH mic)
elseif(INTEL64)
set(LIBOMP_PERL_SCRIPT_ARCH 32e)
else()
set(LIBOMP_PERL_SCRIPT_ARCH ${LIBOMP_ARCH})
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
# Checking features
# Check if version symbol assembler directives are supported
libomp_check_version_symbols(LIBOMP_HAVE_VERSION_SYMBOLS)
# Check if quad precision types are available
if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_HAVE_QUAD_PRECISION TRUE)
[OpenMP][libomp] Introduce oneAPI compiler support Introduce KMP_COMPILER_ICX macro to represent compilation with oneAPI compiler. Fixup flag detection and compiler ID detection in CMake. Older CMake's detect IntelLLVM as Clang. Fix compiler warnings. Fixup many of the tests to have non-empty parallel regions as they are elided by oneAPI compiler.
2022-02-01 00:04:49 +08:00
elseif(CMAKE_C_COMPILER_ID STREQUAL "Intel" OR CMAKE_C_COMPILER_ID STREQUAL "IntelLLVM")
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
if(LIBOMP_HAVE_EXTENDED_FLOAT_TYPES_FLAG)
set(LIBOMP_HAVE_QUAD_PRECISION TRUE)
else()
set(LIBOMP_HAVE_QUAD_PRECISION TRUE)
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
else()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_HAVE_QUAD_PRECISION FALSE)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
# Check if adaptive locks are available
if((${IA32} OR ${INTEL64}) AND NOT MSVC)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_HAVE_ADAPTIVE_LOCKS TRUE)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
else()
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_HAVE_ADAPTIVE_LOCKS FALSE)
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
# Check if stats-gathering is available
[STATS] Have CMake do real check for stats functionality This change allows clang to build the stats library for every architecture which supports __builtin_readcyclecounter(). CMake also checks for all necessary features for stats and will error out if the platform does not support it. Patch by Hal Finkel and Johnny Peyton llvm-svn: 256002
2015-12-19 00:19:35 +08:00
if(${LIBOMP_STATS})
check_c_source_compiles(
"__thread int x;
Remove trailing whitespace in CMake files llvm-svn: 269836
2016-05-18 04:51:24 +08:00
int main(int argc, char** argv)
[STATS] Have CMake do real check for stats functionality This change allows clang to build the stats library for every architecture which supports __builtin_readcyclecounter(). CMake also checks for all necessary features for stats and will error out if the platform does not support it. Patch by Hal Finkel and Johnny Peyton llvm-svn: 256002
2015-12-19 00:19:35 +08:00
{ x = argc; return x; }"
LIBOMP_HAVE___THREAD)
check_c_source_compiles(
Remove trailing whitespace in CMake files llvm-svn: 269836
2016-05-18 04:51:24 +08:00
"int main(int argc, char** argv)
[STATS] Have CMake do real check for stats functionality This change allows clang to build the stats library for every architecture which supports __builtin_readcyclecounter(). CMake also checks for all necessary features for stats and will error out if the platform does not support it. Patch by Hal Finkel and Johnny Peyton llvm-svn: 256002
2015-12-19 00:19:35 +08:00
{ unsigned long long t = __builtin_readcyclecounter(); return 0; }"
LIBOMP_HAVE___BUILTIN_READCYCLECOUNTER)
if(NOT LIBOMP_HAVE___BUILTIN_READCYCLECOUNTER)
[STATS] Missing check for MIC in config-ix.cmake llvm-svn: 264616
2016-03-29 02:53:10 +08:00
if(${IA32} OR ${INTEL64} OR ${MIC})
[STATS] Have CMake do real check for stats functionality This change allows clang to build the stats library for every architecture which supports __builtin_readcyclecounter(). CMake also checks for all necessary features for stats and will error out if the platform does not support it. Patch by Hal Finkel and Johnny Peyton llvm-svn: 256002
2015-12-19 00:19:35 +08:00
check_include_file(x86intrin.h LIBOMP_HAVE_X86INTRIN_H)
libomp_append(CMAKE_REQUIRED_DEFINITIONS -DLIBOMP_HAVE_X86INTRIN_H LIBOMP_HAVE_X86INTRIN_H)
check_c_source_compiles(
"#ifdef LIBOMP_HAVE_X86INTRIN_H
# include <x86intrin.h>
#endif
int main(int argc, char** argv) { unsigned long long t = __rdtsc(); return 0; }" LIBOMP_HAVE___RDTSC)
set(CMAKE_REQUIRED_DEFINITIONS)
endif()
endif()
if(LIBOMP_HAVE___THREAD AND (LIBOMP_HAVE___RDTSC OR LIBOMP_HAVE___BUILTIN_READCYCLECOUNTER))
set(LIBOMP_HAVE_STATS TRUE)
else()
set(LIBOMP_HAVE_STATS FALSE)
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
# Check if OMPT support is available
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
# Currently, __builtin_frame_address() is required for OMPT
[OMPT] Provide initialization for Mac OS X Traditionally, the library had a weak symbol for ompt_start_tool() that served as fallback and disabled OMPT if called. Tools could provide their own version and replace the default implementation to register callbacks and lookup functions. This mechanism has worked reasonably well on Linux systems where this interface was initially developed. On Darwin / Mac OS X the situation is a bit more complicated and the weak symbol doesn't work out-of-the-box. In my tests, the library with the tool needed to link against the OpenMP runtime to make the process work. This would effectively mean that a tool needed to choose a runtime library whereas one design goal of the interface was to allow tools that are agnostic of the runtime. The solution is to use dlsym() with the argument RTLD_DEFAULT so that static implementations of ompt_start_tool() are found in the main executable. This works because the linker on Mac OS X includes all symbols of an executable in the global symbol table by default. To use the same code path on Linux, the application would need to be built with -Wl,--export-dynamic. To avoid this restriction, we continue to use weak symbols on Linux systems as before. Finally this patch extends the existing test to cover all possible ways of initializing the tool as described by the standard. It also fixes ompt_finalize() to not call omp_get_thread_num() when the library is shut down which resulted in hangs on Darwin. The changes have been tested on Linux to make sure that it passes the current tests as well as the newly extended one. Differential Revision: https://reviews.llvm.org/D39801 llvm-svn: 317980
2017-11-11 21:59:48 +08:00
# Weak attribute is required for Unices (except Darwin), LIBPSAPI is used for Windows
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
check_c_source_compiles("int main(int argc, char** argv) {
void* p = __builtin_frame_address(0);
return 0;}" LIBOMP_HAVE___BUILTIN_FRAME_ADDRESS)
check_c_source_compiles("__attribute__ ((weak)) int foo(int a) { return a*a; }
int main(int argc, char** argv) {
return foo(argc);}" LIBOMP_HAVE_WEAK_ATTRIBUTE)
[OpenMP] Fix the check for libpsapi for i386 check_library_exists fails for stdcall functions, because that check doesn't include the necessary headers (and thus fails with an undefined reference to _EnumProcessModules, when the import library symbol actually is called _EnumProcessModules@16). Merge the two previous checks check_include_files and check_library_exists into one with check_c_source_compiles, and merge the variables that indicate whether it succeeded. Differential Revision: https://reviews.llvm.org/D96580
2021-02-12 17:20:10 +08:00
set(CMAKE_REQUIRED_LIBRARIES psapi)
check_c_source_compiles("#include <windows.h>
#include <psapi.h>
int main(int artc, char** argv) {
return EnumProcessModules(NULL, NULL, 0, NULL);
}" LIBOMP_HAVE_PSAPI)
set(CMAKE_REQUIRED_LIBRARIES)
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
if(NOT LIBOMP_HAVE___BUILTIN_FRAME_ADDRESS)
Re-indent the CMake refactor to two-space indention I apologize for this nasty commit, but I somehow overlooked Chandler's comment to re-indent these files to two space indention. I know this is a horrible commit, but I figured if it was done quickly after the first one, not too many conflicts would arise. Again, I'm sorry and won't do this again. llvm-svn: 242301
2015-07-16 00:57:19 +08:00
set(LIBOMP_HAVE_OMPT_SUPPORT FALSE)
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
else()
[OMPT] Build runtime with OMPT support by default This patch enables OMPT by default if version 50 or later is built and the config says, that OMPT will be supported. Differential Revision: https://reviews.llvm.org/D41508 llvm-svn: 321675
2018-01-03 05:09:00 +08:00
if( # hardware architecture supported?
((LIBOMP_ARCH STREQUAL x86_64) OR
(LIBOMP_ARCH STREQUAL i386) OR
# (LIBOMP_ARCH STREQUAL arm) OR
(LIBOMP_ARCH STREQUAL aarch64) OR
[OpenMP] Added the support for cache line size 256 for A64FX Fugaku supercomputer is built with the Fujitsu A64FX microprocessor, whose cache line is 256. In current libomp, we only have cache line size 128 for PPC64 and otherwise 64. This patch added the support of cache line 256 for A64FX. It's worth noting that although A64FX is a variant of AArch64, this property is not shared. As a result, in light of UCX source code (https://github.com/openucx/ucx/blob/392443ab92626412605dee1572056f79c897c6c3/src/ucs/arch/aarch64/cpu.c#L17), we can only determine by checking whether the CPU is FUJITSU A64FX. Reviewed By: jdoerfert, Hahnfeld Differential Revision: https://reviews.llvm.org/D93169
2021-01-10 00:58:37 +08:00
(LIBOMP_ARCH STREQUAL aarch64_a64fx) OR
[OMPT] Build runtime with OMPT support by default This patch enables OMPT by default if version 50 or later is built and the config says, that OMPT will be supported. Differential Revision: https://reviews.llvm.org/D41508 llvm-svn: 321675
2018-01-03 05:09:00 +08:00
(LIBOMP_ARCH STREQUAL ppc64le) OR
[OpenMP] RISCV64 port This is a port of libomp for the RISC-V 64-bit Linux target. We have tested this port on a HiFive Unleashed development board using a downstream LLVM that has support for the missing bits in upstream. As of now, all tests are passing, including OMPT. Patch by Ferran Pallarès! Differential Revision: https://reviews.llvm.org/D59880 llvm-svn: 367021
2019-07-25 22:36:20 +08:00
(LIBOMP_ARCH STREQUAL ppc64) OR
(LIBOMP_ARCH STREQUAL riscv64))
[OMPT] Build runtime with OMPT support by default This patch enables OMPT by default if version 50 or later is built and the config says, that OMPT will be supported. Differential Revision: https://reviews.llvm.org/D41508 llvm-svn: 321675
2018-01-03 05:09:00 +08:00
AND # OS supported?
((WIN32 AND LIBOMP_HAVE_PSAPI) OR APPLE OR (NOT WIN32 AND LIBOMP_HAVE_WEAK_ATTRIBUTE)))
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
set(LIBOMP_HAVE_OMPT_SUPPORT TRUE)
else()
set(LIBOMP_HAVE_OMPT_SUPPORT FALSE)
endif()
Large Refactor of CMake build system This commit improves numerous functionalities of the OpenMP CMake build system to be more conducive with LLVM's build system and build philosophies. The CMake build system, as it was before this commit, was not up to LLVM's standards and did not implement the configuration stage like most CMake based build systems offer (check for compiler flags, libraries, etc.) In order to improve it dramatically in a short period of time, a large refactoring had to be done. The main changes done with this commit are as follows: * Compiler flag checks - The flags are no longer grabbed from compiler specific directories. They are checked for availability in config-ix.cmake and added accordingly inside LibompHandleFlags.cmake. * Feature checks were added in config-ix.cmake. For example, the standard CMake module FindThreads is probed for the threading model to use inside the OpenMP library. * OS detection - There is no longer a LIBOMP_OS variable, OS-specifc build logic is wrapped around the WIN32 and APPLE macros with !(WIN32 OR APPLE) meaning a Unix flavor of some sort. * Got rid of vestigial functions/macros/variables * Added new libomp_append() function which is used everywhere to conditionally or undconditionally append to a list * All targets have the libomp prefix so as not to interfere with any other project * LibompCheckLinkerFlag.cmake module was added which checks for linker flags specifically for building shared libraries. * LibompCheckFortranFlag.cmake module was added which checks for fortran flag availability. * Removed most of the cruft from the translation between the perl+Makefile based build system and this one. The remaining components that they share are perl scripts which I'm in the process of removing. There is still more left to do. The perl scripts still need to be removed, and a config.h.in file (or similarly named) needs to be added with #cmakedefine lines in it. But this is a much better first step than the previous system. Differential Revision: http://reviews.llvm.org/D10656 llvm-svn: 242298
2015-07-16 00:05:30 +08:00
endif()
[OMPT] Windows Support for OMPT The problem is that the ompt_tool() function (which must be implemented by a performance tool) should be defined in the RTL as well to cover the case when the tool is not present in the address space of the process. This functionality is accomplished with weak symbols in Unices. Unfortunately, Windows does not support weak symbols. The solution in these changes is to grab the list of all modules loaded by the process and then search for symbol "ompt_tool()" within them. The function ompt_tool_windows() performs the search of the ompt_tool symbol. If ompt_tool is found, then its return value is used to initialize the tool. If ompt_tool is not found, then ompt_tool_windows() returns NULL and OMPT is thus, disabled. While doing these changes, the OMPT_SUPPORT detection in CMake was changed to test for the required featuers for OMPT_SUPPORT, namely: builtin_frame_address() existence, weak attribute existence and psapi.dll existence. For LIBOMP_HAVE_OMPT_SUPPORT to be true, it must be that the builtin_frame_address() intrinsic exists AND one of: either weak attributes exist or psapi.dll exists. Also, since Process Status API is used I had to add new dependency -- psapi.dll to the library dependency micro test. Differential Revision: http://reviews.llvm.org/D14027 llvm-svn: 251654
2015-10-30 04:56:24 +08:00
Adding Hwloc library option for affinity mechanism These changes allow libhwloc to be used as the topology discovery/affinity mechanism for libomp. It is supported on Unices. The code additions: * Canonicalize KMP_CPU_* interface macros so bitmask operations are implementation independent and work with both hwloc bitmaps and libomp bitmaps. So there are new KMP_CPU_ALLOC_* and KMP_CPU_ITERATE() macros and the like. These are all in kmp.h and appropriately placed. * Hwloc topology discovery code in kmp_affinity.cpp. This uses the hwloc interface to create a libomp address2os object which the rest of libomp knows how to handle already. * To build, use -DLIBOMP_USE_HWLOC=on and -DLIBOMP_HWLOC_INSTALL_DIR=/path/to/install/dir [default /usr/local]. If CMake can't find the library or hwloc.h, then it will tell you and exit. Differential Revision: http://reviews.llvm.org/D13991 llvm-svn: 254320
2015-12-01 04:02:59 +08:00
# Check if HWLOC support is available
if(${LIBOMP_USE_HWLOC})
[Clang][OpenMP] libompd: get libomp hwloc includedir by target_link_libraries When hwloc is used and is installed outside of the default paths, the omp CMake target needs to provide the needed include path thru the CMake target by adding it with target_include_directories to it, so libompd gets it as well when it defines it's cmake target using target_link_libraries. As suggested in D122667 Reviewed By: ye-luo Differential Revision: https://reviews.llvm.org/D123888
2022-04-23 06:33:41 +08:00
find_path(LIBOMP_HWLOC_INCLUDE_DIR NAMES hwloc.h HINTS ${LIBOMP_HWLOC_INSTALL_DIR} PATH_SUFFIXES include)
set(CMAKE_REQUIRED_INCLUDES ${LIBOMP_HWLOC_INCLUDE_DIR})
Teach OpenMP Library to use Hwloc on Windows This patch allows a user to enable Hwloc on windows. There are three main changes in here: 1.kmp.h - Move definitions/declarations out of KMP_OS_WINDOWS guard (our windows implementation of affinity) because they need to be defined when KMP_USE_HWLOC is on as well. 2.teach __kmp_set_system_affinity, __kmp_get_system_affinity, __kmp_get_proc_group, and __kmp_affinity_bind_thread how to use hwloc. 3.teach CMake how to include hwloc when building Windows Another minor change in here is to make sure that anything under KMP_USE_HWLOC is also guarded by KMP_AFFINITY_SUPPORTED as well. This is to prevent Mac builds from requiring anything from Hwloc. Differential Revision: http://reviews.llvm.org/D21441 llvm-svn: 272951
2016-06-17 04:23:11 +08:00
check_include_file(hwloc.h LIBOMP_HAVE_HWLOC_H)
set(CMAKE_REQUIRED_INCLUDES)
find_library(LIBOMP_HWLOC_LIBRARY
NAMES hwloc libhwloc
HINTS ${LIBOMP_HWLOC_INSTALL_DIR}/lib)
if(LIBOMP_HWLOC_LIBRARY)
check_library_exists(${LIBOMP_HWLOC_LIBRARY} hwloc_topology_init
Adding Hwloc library option for affinity mechanism These changes allow libhwloc to be used as the topology discovery/affinity mechanism for libomp. It is supported on Unices. The code additions: * Canonicalize KMP_CPU_* interface macros so bitmask operations are implementation independent and work with both hwloc bitmaps and libomp bitmaps. So there are new KMP_CPU_ALLOC_* and KMP_CPU_ITERATE() macros and the like. These are all in kmp.h and appropriately placed. * Hwloc topology discovery code in kmp_affinity.cpp. This uses the hwloc interface to create a libomp address2os object which the rest of libomp knows how to handle already. * To build, use -DLIBOMP_USE_HWLOC=on and -DLIBOMP_HWLOC_INSTALL_DIR=/path/to/install/dir [default /usr/local]. If CMake can't find the library or hwloc.h, then it will tell you and exit. Differential Revision: http://reviews.llvm.org/D13991 llvm-svn: 254320
2015-12-01 04:02:59 +08:00
${LIBOMP_HWLOC_INSTALL_DIR}/lib LIBOMP_HAVE_LIBHWLOC)
get_filename_component(LIBOMP_HWLOC_LIBRARY_DIR ${LIBOMP_HWLOC_LIBRARY} PATH)
Teach OpenMP Library to use Hwloc on Windows This patch allows a user to enable Hwloc on windows. There are three main changes in here: 1.kmp.h - Move definitions/declarations out of KMP_OS_WINDOWS guard (our windows implementation of affinity) because they need to be defined when KMP_USE_HWLOC is on as well. 2.teach __kmp_set_system_affinity, __kmp_get_system_affinity, __kmp_get_proc_group, and __kmp_affinity_bind_thread how to use hwloc. 3.teach CMake how to include hwloc when building Windows Another minor change in here is to make sure that anything under KMP_USE_HWLOC is also guarded by KMP_AFFINITY_SUPPORTED as well. This is to prevent Mac builds from requiring anything from Hwloc. Differential Revision: http://reviews.llvm.org/D21441 llvm-svn: 272951
2016-06-17 04:23:11 +08:00
endif()
if(LIBOMP_HAVE_HWLOC_H AND LIBOMP_HAVE_LIBHWLOC AND LIBOMP_HWLOC_LIBRARY)
set(LIBOMP_HAVE_HWLOC TRUE)
else()
set(LIBOMP_HAVE_HWLOC FALSE)
libomp_say("Could not find hwloc")
Adding Hwloc library option for affinity mechanism These changes allow libhwloc to be used as the topology discovery/affinity mechanism for libomp. It is supported on Unices. The code additions: * Canonicalize KMP_CPU_* interface macros so bitmask operations are implementation independent and work with both hwloc bitmaps and libomp bitmaps. So there are new KMP_CPU_ALLOC_* and KMP_CPU_ITERATE() macros and the like. These are all in kmp.h and appropriately placed. * Hwloc topology discovery code in kmp_affinity.cpp. This uses the hwloc interface to create a libomp address2os object which the rest of libomp knows how to handle already. * To build, use -DLIBOMP_USE_HWLOC=on and -DLIBOMP_HWLOC_INSTALL_DIR=/path/to/install/dir [default /usr/local]. If CMake can't find the library or hwloc.h, then it will tell you and exit. Differential Revision: http://reviews.llvm.org/D13991 llvm-svn: 254320
2015-12-01 04:02:59 +08:00
endif()
endif()
[OpenMP] Enable ThreadSanitizer to check OpenMP programs This patch allows ThreadSanitizer (Tsan) to verify OpenMP programs. It means that no false positive will be reported by Tsan when verifying an OpenMP programs. This patch introduces annotations within the OpenMP runtime module to provide information about thread synchronization to the Tsan runtime. In order to enable the Tsan support when building the runtime, you must enable the TSAN_SUPPORT option with the following environment variable: -DLIBOMP_TSAN_SUPPORT=TRUE The annotations will be enabled in the main shared library (same mechanism of OMPT). Patch by Simone Atzeni and Joachim Protze! Differential Revision: https://reviews.llvm.org/D13072 llvm-svn: 286115
2016-11-07 23:58:36 +08:00
# Check if ThreadSanitizer support is available
if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux" AND ${INTEL64})
set(LIBOMP_HAVE_TSAN_SUPPORT TRUE)
else()
set(LIBOMP_HAVE_TSAN_SUPPORT FALSE)
endif()