[clang] [compiler-rt] [libcxx] [libunwind] [llvm] [openmp] [cmake] switch to CMake's native `check_{compiler,linker}_flag` (PR #96171)
via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 23 14:49:35 PDT 2024
https://github.com/h-vetinari updated https://github.com/llvm/llvm-project/pull/96171
>From 1df587efeb71fb1929667f008d7e9b251863d9d8 Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari at gmx.com>
Date: Thu, 20 Jun 2024 21:43:31 +1100
Subject: [PATCH 1/4] [cmake] switch to CMake's native check_linker_flag,
delete LLVMCheckLinkerFlag.cmake
now that CMake baseline has moved past 3.18; see
https://cmake.org/cmake/help/latest/module/CheckLinkerFlag.html
---
clang/tools/driver/CMakeLists.txt | 4 +--
llvm/cmake/modules/AddLLVM.cmake | 4 +--
llvm/cmake/modules/HandleLLVMOptions.cmake | 8 +++---
llvm/cmake/modules/HandleLLVMStdlib.cmake | 6 ++---
llvm/cmake/modules/LLVMCheckLinkerFlag.cmake | 28 --------------------
5 files changed, 11 insertions(+), 39 deletions(-)
delete mode 100644 llvm/cmake/modules/LLVMCheckLinkerFlag.cmake
diff --git a/clang/tools/driver/CMakeLists.txt b/clang/tools/driver/CMakeLists.txt
index 290bf2a42536d..018605c2fd4f2 100644
--- a/clang/tools/driver/CMakeLists.txt
+++ b/clang/tools/driver/CMakeLists.txt
@@ -107,7 +107,7 @@ endif()
if(CLANG_ORDER_FILE AND
(LLVM_LINKER_IS_APPLE OR LLVM_LINKER_IS_GOLD OR LLVM_LINKER_IS_LLD))
- include(LLVMCheckLinkerFlag)
+ include(CheckLinkerFlag)
if (LLVM_LINKER_IS_APPLE OR (LLVM_LINKER_IS_LLD AND APPLE))
set(LINKER_ORDER_FILE_OPTION "-Wl,-order_file,${CLANG_ORDER_FILE}")
@@ -118,7 +118,7 @@ if(CLANG_ORDER_FILE AND
endif()
# This is a test to ensure the actual order file works with the linker.
- llvm_check_linker_flag(CXX ${LINKER_ORDER_FILE_OPTION} LINKER_ORDER_FILE_WORKS)
+ check_linker_flag(CXX ${LINKER_ORDER_FILE_OPTION} LINKER_ORDER_FILE_WORKS)
# Passing an empty order file disables some linker layout optimizations.
# To work around this and enable workflows for re-linking when the order file
diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
index 03f4e1f190fd9..cac5470435d91 100644
--- a/llvm/cmake/modules/AddLLVM.cmake
+++ b/llvm/cmake/modules/AddLLVM.cmake
@@ -327,8 +327,8 @@ function(add_link_opts target_name)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND LLVM_LINKER_IS_SOLARISLD)
# Support for ld -z discard-unused=sections was only added in
# Solaris 11.4. GNU ld ignores it, but warns every time.
- include(LLVMCheckLinkerFlag)
- llvm_check_linker_flag(CXX "-Wl,-z,discard-unused=sections" LINKER_SUPPORTS_Z_DISCARD_UNUSED)
+ include(CheckLinkerFlag)
+ check_linker_flag(CXX "-Wl,-z,discard-unused=sections" LINKER_SUPPORTS_Z_DISCARD_UNUSED)
if (LINKER_SUPPORTS_Z_DISCARD_UNUSED)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-z,discard-unused=sections")
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
index 5ca580fbb59c5..bdbd36174fc7a 100644
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -1061,8 +1061,8 @@ if (LLVM_USE_SPLIT_DWARF AND
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
add_compile_options($<$<COMPILE_LANGUAGE:C,CXX>:-gsplit-dwarf>)
- include(LLVMCheckLinkerFlag)
- llvm_check_linker_flag(CXX "-Wl,--gdb-index" LINKER_SUPPORTS_GDB_INDEX)
+ include(CheckLinkerFlag)
+ check_linker_flag(CXX "-Wl,--gdb-index" LINKER_SUPPORTS_GDB_INDEX)
append_if(LINKER_SUPPORTS_GDB_INDEX "-Wl,--gdb-index"
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
@@ -1083,8 +1083,8 @@ endif()
# lld doesn't print colored diagnostics when invoked from Ninja
if (UNIX AND CMAKE_GENERATOR MATCHES "Ninja")
- include(LLVMCheckLinkerFlag)
- llvm_check_linker_flag(CXX "-Wl,--color-diagnostics" LINKER_SUPPORTS_COLOR_DIAGNOSTICS)
+ include(CheckLinkerFlag)
+ check_linker_flag(CXX "-Wl,--color-diagnostics" LINKER_SUPPORTS_COLOR_DIAGNOSTICS)
append_if(LINKER_SUPPORTS_COLOR_DIAGNOSTICS "-Wl,--color-diagnostics"
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
diff --git a/llvm/cmake/modules/HandleLLVMStdlib.cmake b/llvm/cmake/modules/HandleLLVMStdlib.cmake
index 7afc10cff74ff..a7e138aa0789b 100644
--- a/llvm/cmake/modules/HandleLLVMStdlib.cmake
+++ b/llvm/cmake/modules/HandleLLVMStdlib.cmake
@@ -13,12 +13,12 @@ if(NOT DEFINED LLVM_STDLIB_HANDLED)
endfunction()
include(CheckCXXCompilerFlag)
- include(LLVMCheckLinkerFlag)
+ include(CheckLinkerFlag)
set(LLVM_LIBCXX_USED 0)
if(LLVM_ENABLE_LIBCXX)
if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
check_cxx_compiler_flag("-stdlib=libc++" CXX_COMPILER_SUPPORTS_STDLIB)
- llvm_check_linker_flag(CXX "-stdlib=libc++" CXX_LINKER_SUPPORTS_STDLIB)
+ check_linker_flag(CXX "-stdlib=libc++" CXX_LINKER_SUPPORTS_STDLIB)
if(CXX_COMPILER_SUPPORTS_STDLIB AND CXX_LINKER_SUPPORTS_STDLIB)
append("-stdlib=libc++"
CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS
@@ -36,7 +36,7 @@ if(NOT DEFINED LLVM_STDLIB_HANDLED)
if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
check_cxx_compiler_flag("-static-libstdc++"
CXX_COMPILER_SUPPORTS_STATIC_STDLIB)
- llvm_check_linker_flag(CXX "-static-libstdc++" CXX_LINKER_SUPPORTS_STATIC_STDLIB)
+ check_linker_flag(CXX "-static-libstdc++" CXX_LINKER_SUPPORTS_STATIC_STDLIB)
if(CXX_COMPILER_SUPPORTS_STATIC_STDLIB AND
CXX_LINKER_SUPPORTS_STATIC_STDLIB)
append("-static-libstdc++"
diff --git a/llvm/cmake/modules/LLVMCheckLinkerFlag.cmake b/llvm/cmake/modules/LLVMCheckLinkerFlag.cmake
deleted file mode 100644
index e09bbc66f2d26..0000000000000
--- a/llvm/cmake/modules/LLVMCheckLinkerFlag.cmake
+++ /dev/null
@@ -1,28 +0,0 @@
-include(CheckLinkerFlag OPTIONAL)
-
-if (COMMAND check_linker_flag)
- macro(llvm_check_linker_flag)
- check_linker_flag(${ARGN})
- endmacro()
-else()
- # Until the minimum CMAKE version is 3.18
-
- include(CheckCXXCompilerFlag)
-
- # cmake builtin compatible, except we assume lang is C or CXX
- function(llvm_check_linker_flag lang flag out_var)
- cmake_policy(PUSH)
- cmake_policy(SET CMP0056 NEW)
- set(_CMAKE_EXE_LINKER_FLAGS_SAVE ${CMAKE_EXE_LINKER_FLAGS})
- set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${flag}")
- if("${lang}" STREQUAL "C")
- check_c_compiler_flag("" ${out_var})
- elseif("${lang}" STREQUAL "CXX")
- check_cxx_compiler_flag("" ${out_var})
- else()
- message(FATAL_ERROR "\"${lang}\" is not C or CXX")
- endif()
- set(CMAKE_EXE_LINKER_FLAGS ${_CMAKE_EXE_LINKER_FLAGS_SAVE})
- cmake_policy(POP)
- endfunction()
-endif()
>From 1515c2cd16911e1297c57fb69d4bb4921a40b8ab Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari at gmx.com>
Date: Thu, 20 Jun 2024 21:56:56 +1100
Subject: [PATCH 2/4] [cmake] switch to CMake's native check_compiler_flag,
delete LLVMCheckCompilerLinkerFlag.cmake
now that CMake baseline has moved past 3.19; see
https://cmake.org/cmake/help/latest/module/CheckCompilerFlag.html
---
.../Modules/LLVMCheckCompilerLinkerFlag.cmake | 35 -------------------
compiler-rt/cmake/config-ix.cmake | 18 +++++-----
libcxx/cmake/config-ix.cmake | 6 ++--
libunwind/cmake/config-ix.cmake | 8 ++---
offload/CMakeLists.txt | 4 +--
openmp/runtime/cmake/config-ix.cmake | 18 +++++-----
runtimes/CMakeLists.txt | 6 ++--
7 files changed, 30 insertions(+), 65 deletions(-)
delete mode 100644 cmake/Modules/LLVMCheckCompilerLinkerFlag.cmake
diff --git a/cmake/Modules/LLVMCheckCompilerLinkerFlag.cmake b/cmake/Modules/LLVMCheckCompilerLinkerFlag.cmake
deleted file mode 100644
index f61ec0585f9a4..0000000000000
--- a/cmake/Modules/LLVMCheckCompilerLinkerFlag.cmake
+++ /dev/null
@@ -1,35 +0,0 @@
-include(CMakePushCheckState)
-
-include(CheckCompilerFlag OPTIONAL)
-
-if(NOT COMMAND check_compiler_flag)
- include(CheckCCompilerFlag)
- include(CheckCXXCompilerFlag)
-endif()
-
-function(llvm_check_compiler_linker_flag lang flag out_var)
- # If testing a flag with check_c_compiler_flag, it gets added to the compile
- # command only, but not to the linker command in that test. If the flag
- # is vital for linking to succeed, the test would fail even if it would
- # have succeeded if it was included on both commands.
- #
- # Therefore, try adding the flag to CMAKE_REQUIRED_FLAGS, which gets
- # added to both compiling and linking commands in the tests.
-
- cmake_push_check_state()
- set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${flag}")
- if(COMMAND check_compiler_flag)
- check_compiler_flag("${lang}" "" ${out_var})
- else()
- # Until the minimum CMAKE version is 3.19
- # cmake builtin compatible, except we assume lang is C or CXX
- if("${lang}" STREQUAL "C")
- check_c_compiler_flag("" ${out_var})
- elseif("${lang}" STREQUAL "CXX")
- check_cxx_compiler_flag("" ${out_var})
- else()
- message(FATAL_ERROR "\"${lang}\" is not C or CXX")
- endif()
- endif()
- cmake_pop_check_state()
-endfunction()
diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index 75e4d3677703a..e90e95438c069 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -5,7 +5,7 @@ include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckIncludeFiles)
include(CheckLibraryExists)
-include(LLVMCheckCompilerLinkerFlag)
+include(CheckCompilerFlag)
include(CheckSymbolExists)
include(TestBigEndian)
@@ -15,8 +15,8 @@ include(TestBigEndian)
# in tree version of runtimes, we'd be linking against the just-built
# libunwind (and the compiler implicit -lunwind wouldn't succeed as the newly
# built libunwind isn't installed yet). For those cases, it'd be good to
-# link with --uwnindlib=none. Check if that option works.
-llvm_check_compiler_linker_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_NONE_FLAG)
+# link with --unwindlib=none. Check if that option works.
+check_compiler_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_NONE_FLAG)
check_library_exists(c fopen "" COMPILER_RT_HAS_LIBC)
if (COMPILER_RT_USE_BUILTINS_LIBRARY)
@@ -190,12 +190,12 @@ check_library_exists(c++ __cxa_throw "" COMPILER_RT_HAS_LIBCXX)
check_library_exists(stdc++ __cxa_throw "" COMPILER_RT_HAS_LIBSTDCXX)
# Linker flags.
-llvm_check_compiler_linker_flag(C "-Wl,-z,text" COMPILER_RT_HAS_Z_TEXT)
-llvm_check_compiler_linker_flag(C "-fuse-ld=lld" COMPILER_RT_HAS_FUSE_LD_LLD_FLAG)
+check_compiler_flag(C "-Wl,-z,text" COMPILER_RT_HAS_Z_TEXT)
+check_compiler_flag(C "-fuse-ld=lld" COMPILER_RT_HAS_FUSE_LD_LLD_FLAG)
if(${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND LLVM_LINKER_IS_SOLARISLD)
set(VERS_COMPAT_OPTION "-Wl,-z,gnu-version-script-compat")
- llvm_check_compiler_linker_flag(C "${VERS_COMPAT_OPTION}" COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
+ check_compiler_flag(C "${VERS_COMPAT_OPTION}" COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
endif()
set(DUMMY_VERS ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/dummy.vers)
@@ -206,10 +206,10 @@ if(COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
# -z gnu-version-script-compat.
string(APPEND VERS_OPTION " ${VERS_COMPAT_OPTION}")
endif()
-llvm_check_compiler_linker_flag(C "${VERS_OPTION}" COMPILER_RT_HAS_VERSION_SCRIPT)
+check_compiler_flag(C "${VERS_OPTION}" COMPILER_RT_HAS_VERSION_SCRIPT)
if(ANDROID)
- llvm_check_compiler_linker_flag(C "-Wl,-z,global" COMPILER_RT_HAS_Z_GLOBAL)
+ check_compiler_flag(C "-Wl,-z,global" COMPILER_RT_HAS_Z_GLOBAL)
check_library_exists(log __android_log_write "" COMPILER_RT_HAS_LIBLOG)
endif()
@@ -481,7 +481,7 @@ if(APPLE)
-lc++
-lc++abi)
- llvm_check_compiler_linker_flag(C "-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
+ check_compiler_flag(C "-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
if(COMPILER_RT_HAS_APP_EXTENSION)
list(APPEND DARWIN_COMMON_LINK_FLAGS "-fapplication-extension")
endif()
diff --git a/libcxx/cmake/config-ix.cmake b/libcxx/cmake/config-ix.cmake
index 7406fba482e69..a214c17dacdbb 100644
--- a/libcxx/cmake/config-ix.cmake
+++ b/libcxx/cmake/config-ix.cmake
@@ -1,7 +1,7 @@
include(CMakePushCheckState)
include(CheckLibraryExists)
include(CheckSymbolExists)
-include(LLVMCheckCompilerLinkerFlag)
+include(CheckCompilerFlag)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckCSourceCompiles)
@@ -12,8 +12,8 @@ include(CheckCSourceCompiles)
# LIBCXXABI_USE_LLVM_UNWINDER set, we'd be linking against the just-built
# libunwind (and the compiler implicit -lunwind wouldn't succeed as the newly
# built libunwind isn't installed yet). For those cases, it'd be good to
-# link with --uwnindlib=none. Check if that option works.
-llvm_check_compiler_linker_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
+# link with --unwindlib=none. Check if that option works.
+check_compiler_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
if (NOT LIBCXX_USE_COMPILER_RT)
if(WIN32 AND NOT MINGW)
diff --git a/libunwind/cmake/config-ix.cmake b/libunwind/cmake/config-ix.cmake
index 126c872f0d489..77bdd5eb5aaf8 100644
--- a/libunwind/cmake/config-ix.cmake
+++ b/libunwind/cmake/config-ix.cmake
@@ -2,14 +2,14 @@ include(CMakePushCheckState)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckLibraryExists)
-include(LLVMCheckCompilerLinkerFlag)
+include(CheckCompilerFlag)
include(CheckSymbolExists)
include(CheckCSourceCompiles)
# The compiler driver may be implicitly trying to link against libunwind, which
# might not work if libunwind doesn't exist yet. Try to check if
# --unwindlib=none is supported, and use that if possible.
-llvm_check_compiler_linker_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
+check_compiler_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
if (HAIKU)
check_library_exists(root fopen "" LIBUNWIND_HAS_ROOT_LIB)
@@ -35,11 +35,11 @@ endif()
# required for the link to go through. We remove sanitizers from the
# configuration checks to avoid spurious link errors.
-llvm_check_compiler_linker_flag(CXX "-nostdlib++" CXX_SUPPORTS_NOSTDLIBXX_FLAG)
+check_compiler_flag(CXX "-nostdlib++" CXX_SUPPORTS_NOSTDLIBXX_FLAG)
if (CXX_SUPPORTS_NOSTDLIBXX_FLAG)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -nostdlib++")
else()
- llvm_check_compiler_linker_flag(C "-nodefaultlibs" C_SUPPORTS_NODEFAULTLIBS_FLAG)
+ check_compiler_flag(C "-nodefaultlibs" C_SUPPORTS_NODEFAULTLIBS_FLAG)
if (C_SUPPORTS_NODEFAULTLIBS_FLAG)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -nodefaultlibs")
endif()
diff --git a/offload/CMakeLists.txt b/offload/CMakeLists.txt
index ead2aed414ffe..800a34ccb194a 100644
--- a/offload/CMakeLists.txt
+++ b/offload/CMakeLists.txt
@@ -294,9 +294,9 @@ endif()
if(OPENMP_STANDALONE_BUILD OR TARGET omp)
# Check LIBOMP_HAVE_VERSION_SCRIPT_FLAG
- include(LLVMCheckCompilerLinkerFlag)
+ include(CheckCompilerFlag)
if(NOT APPLE)
- llvm_check_compiler_linker_flag(C "-Wl,--version-script=${CMAKE_CURRENT_LIST_DIR}/../openmp/runtime/src/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+ check_compiler_flag(C "-Wl,--version-script=${CMAKE_CURRENT_LIST_DIR}/../openmp/runtime/src/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
endif()
endif()
diff --git a/openmp/runtime/cmake/config-ix.cmake b/openmp/runtime/cmake/config-ix.cmake
index 337fe2e599648..ad389e76208ec 100644
--- a/openmp/runtime/cmake/config-ix.cmake
+++ b/openmp/runtime/cmake/config-ix.cmake
@@ -8,6 +8,7 @@
#//===----------------------------------------------------------------------===//
#
+include(CheckCompilerFlag)
include(CheckCCompilerFlag)
include(CheckCSourceCompiles)
include(CheckCXXSourceCompiles)
@@ -17,7 +18,6 @@ include(CheckLibraryExists)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(LibompCheckFortranFlag)
-include(LLVMCheckCompilerLinkerFlag)
# Check for versioned symbols
function(libomp_check_version_symbols retval)
@@ -128,13 +128,13 @@ check_symbol_exists(_aligned_malloc "malloc.h" LIBOMP_HAVE__ALIGNED_MALLOC)
# Check linker flags
if(WIN32)
- llvm_check_compiler_linker_flag(C /SAFESEH LIBOMP_HAVE_SAFESEH_FLAG)
+ check_compiler_flag(C /SAFESEH LIBOMP_HAVE_SAFESEH_FLAG)
elseif(NOT APPLE)
- llvm_check_compiler_linker_flag(C -Wl,-x LIBOMP_HAVE_X_FLAG)
- llvm_check_compiler_linker_flag(C -Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
- llvm_check_compiler_linker_flag(C "-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
- llvm_check_compiler_linker_flag(C -static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
- llvm_check_compiler_linker_flag(C -Wl,-z,noexecstack LIBOMP_HAVE_Z_NOEXECSTACK_FLAG)
+ check_compiler_flag(C -Wl,-x LIBOMP_HAVE_X_FLAG)
+ check_compiler_flag(C -Wl,--as-needed LIBOMP_HAVE_AS_NEEDED_FLAG)
+ check_compiler_flag(C "-Wl,--version-script=${LIBOMP_SRC_DIR}/exports_test_so.txt" LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
+ check_compiler_flag(C -static-libgcc LIBOMP_HAVE_STATIC_LIBGCC_FLAG)
+ check_compiler_flag(C -Wl,-z,noexecstack LIBOMP_HAVE_Z_NOEXECSTACK_FLAG)
endif()
# Check Intel(R) C Compiler specific flags
@@ -145,8 +145,8 @@ if(CMAKE_C_COMPILER_ID STREQUAL "Intel" OR CMAKE_C_COMPILER_ID STREQUAL "IntelLL
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)
- llvm_check_compiler_linker_flag(C -static-intel LIBOMP_HAVE_STATIC_INTEL_FLAG)
- llvm_check_compiler_linker_flag(C -no-intel-extensions LIBOMP_HAVE_NO_INTEL_EXTENSIONS_FLAG)
+ check_compiler_flag(C -static-intel LIBOMP_HAVE_STATIC_INTEL_FLAG)
+ check_compiler_flag(C -no-intel-extensions LIBOMP_HAVE_NO_INTEL_EXTENSIONS_FLAG)
check_library_exists(irc_pic _intel_fast_memcpy "" LIBOMP_HAVE_IRC_PIC_LIBRARY)
endif()
diff --git a/runtimes/CMakeLists.txt b/runtimes/CMakeLists.txt
index 24f4851169591..da7650ce65da7 100644
--- a/runtimes/CMakeLists.txt
+++ b/runtimes/CMakeLists.txt
@@ -79,7 +79,7 @@ set(LLVM_CMAKE_DIR ${LLVM_MAIN_SRC_DIR}/cmake/modules)
set(LLVM_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../llvm)
include(CheckLibraryExists)
-include(LLVMCheckCompilerLinkerFlag)
+include(CheckCompilerFlag)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
@@ -114,7 +114,7 @@ filter_prefixed("${CMAKE_ASM_IMPLICIT_INCLUDE_DIRECTORIES}" ${LLVM_BINARY_DIR} C
# Currently, we counteract this issue by adding -fno-sanitize=all flag in
# the project specific code within */cmake/config-ix.cmake files but that's
# brittle. We should ideally move this to runtimes/CMakeLists.txt.
-llvm_check_compiler_linker_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
+check_compiler_flag(C "--unwindlib=none" CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
if (CXX_SUPPORTS_UNWINDLIB_EQ_NONE_FLAG)
set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} --unwindlib=none")
@@ -143,7 +143,7 @@ endif()
# Check for -nostdlib++ first; if there's no C++ standard library yet,
# all check_cxx_compiler_flag commands will fail until we add -nostdlib++
# (or -nodefaultlibs).
-llvm_check_compiler_linker_flag(CXX "-nostdlib++" CXX_SUPPORTS_NOSTDLIBXX_FLAG)
+check_compiler_flag(CXX "-nostdlib++" CXX_SUPPORTS_NOSTDLIBXX_FLAG)
if (CXX_SUPPORTS_NOSTDLIBXX_FLAG)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -nostdlib++")
endif()
>From b0dd6d6c62728a7a9ee0e2283cc0a0af9e207bb5 Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari at gmx.com>
Date: Fri, 21 Jun 2024 10:09:40 +1100
Subject: [PATCH 3/4] [cmake] fix remaining llvm_check_linker_flag that slipped
through
---
clang/tools/clang-repl/CMakeLists.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/clang/tools/clang-repl/CMakeLists.txt b/clang/tools/clang-repl/CMakeLists.txt
index 42618e4e31cb0..a35ff13494e11 100644
--- a/clang/tools/clang-repl/CMakeLists.txt
+++ b/clang/tools/clang-repl/CMakeLists.txt
@@ -69,7 +69,7 @@ export_executable_symbols_for_plugins(clang-repl)
# gold. This flag tells the linker to build a PLT for the full address range.
# Linkers without this flag are assumed to support proper PLTs by default.
set(flag_long_plt "-Wl,--long-plt")
-llvm_check_linker_flag(CXX ${flag_long_plt} HAVE_LINKER_FLAG_LONG_PLT)
+check_linker_flag(CXX ${flag_long_plt} HAVE_LINKER_FLAG_LONG_PLT)
if(HAVE_LINKER_FLAG_LONG_PLT)
target_link_options(clang-repl PRIVATE ${flag_long_plt})
endif()
>From 2e62f2fe5542e739078d1c4b1178e73ed85f68a5 Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari at gmx.com>
Date: Wed, 26 Jun 2024 13:37:14 +1100
Subject: [PATCH 4/4] [cmake] remove duplicate inclusion of
`include(CheckCompilerFlag)`
---
compiler-rt/cmake/config-ix.cmake | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index e90e95438c069..5809f45963780 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -1,11 +1,10 @@
include(CMakePushCheckState)
include(AddLLVM)
-include(LLVMCheckCompilerLinkerFlag)
+include(CheckCompilerFlag)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckIncludeFiles)
include(CheckLibraryExists)
-include(CheckCompilerFlag)
include(CheckSymbolExists)
include(TestBigEndian)
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