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Enable IPO for IntelLLVM compilers on Linux and Windows

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Replicate and adapt Linux IPO options for Intel for IntelLLVM compilers
on Linux and Windows.

Signed-off-by: William R. Dieter <william.r.dieter@intel.com>
This commit is contained in:
William R. Dieter 2022-05-27 14:29:18 -07:00
parent adbffd204d
commit 6823db0c5a
3 changed files with 60 additions and 32 deletions
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45
Modules/Compiler/IntelLLVM-FindBinUtils.cmake Normal file
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@ -0,0 +1,45 @@
if(NOT DEFINED _CMAKE_PROCESSING_LANGUAGE OR _CMAKE_PROCESSING_LANGUAGE STREQUAL "")
message(FATAL_ERROR "Internal error: _CMAKE_PROCESSING_LANGUAGE is not set")
endif()
# Ubuntu:
# * /usr/bin/llvm-ar-9
# * /usr/bin/llvm-ranlib-9
string(REGEX MATCH "^([0-9]+)" __version_x
"${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_VERSION}")
# Debian:
# * /usr/bin/llvm-ar-4.0
# * /usr/bin/llvm-ranlib-4.0
string(REGEX MATCH "^([0-9]+\\.[0-9]+)" __version_x_y
"${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_VERSION}")
# Try to find tools in the IntelLLVM Clang tools directory
get_filename_component(__intel_llvm_hint_1 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" DIRECTORY)
get_filename_component(__intel_llvm_hint_1 "${__intel_llvm_hint_1}/../bin-llvm" REALPATH)
get_filename_component(__intel_llvm_hint_2 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" DIRECTORY)
set(__intel_llvm_hints ${__intel_llvm_hint_1} ${__intel_llvm_hint_2})
# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ar.1.html
find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_AR NAMES
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar-${__version_x_y}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar-${__version_x}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar"
HINTS ${__intel_llvm_hints}
NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH
DOC "LLVM archiver"
)
mark_as_advanced(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_AR)
# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ranlib.1.html
find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_RANLIB NAMES
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib-${__version_x_y}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib-${__version_x}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib"
HINTS ${__intel_llvm_hints}
NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH
DOC "Generate index for LLVM archive"
)
mark_as_advanced(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_RANLIB)

21
Modules/Compiler/IntelLLVM.cmake
View File

@ -15,6 +15,15 @@ set(__pch_header_CXX "c++-header")
set(__pch_header_OBJC "objective-c-header")
set(__pch_header_OBJCXX "objective-c++-header")
# Variables that are common across front-end variants
macro(__compiler_intel_llvm_common lang)
set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
set(CMAKE_${lang}_ARCHIVE_CREATE_IPO "\"${CMAKE_${lang}_COMPILER_AR}\" cr <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_${lang}_ARCHIVE_APPEND_IPO "\"${CMAKE_${lang}_COMPILER_AR}\" r <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_${lang}_ARCHIVE_FINISH_IPO "\"${CMAKE_${lang}_COMPILER_RANLIB}\" <TARGET>")
endmacro()
if(CMAKE_HOST_WIN32)
# MSVC-like
macro(__compiler_intel_llvm lang)
@ -22,6 +31,9 @@ if(CMAKE_HOST_WIN32)
set(CMAKE_${lang}_COMPILE_OPTIONS_INVALID_PCH -Winvalid-pch)
set(CMAKE_${lang}_COMPILE_OPTIONS_WARNING_AS_ERROR "-WX")
endif()
__compiler_intel_llvm_common(${lang})
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-Qipo")
set(CMAKE_${lang}_LINK_OPTIONS_IPO "-Qipo")
endmacro()
else()
# GNU-like
@ -60,12 +72,9 @@ else()
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG "-Xlinker" " ")
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG_SEP)
set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto=thin")
set(CMAKE_${lang}_ARCHIVE_CREATE_IPO "\"${CMAKE_${lang}_COMPILER_AR}\" cr <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_${lang}_ARCHIVE_APPEND_IPO "\"${CMAKE_${lang}_COMPILER_AR}\" r <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_${lang}_ARCHIVE_FINISH_IPO "\"${CMAKE_${lang}_COMPILER_RANLIB}\" <TARGET>")
__compiler_intel_llvm_common(${lang})
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-ipo")
set(CMAKE_${lang}_LINK_OPTIONS_IPO "-ipo")
set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")

26
Modules/Platform/Linux-IntelLLVM.cmake
View File

@ -8,18 +8,6 @@ if(__LINUX_COMPILER_INTEL_LLVM)
endif()
set(__LINUX_COMPILER_INTEL_LLVM 1)
if(NOT XIAR)
set(_intel_xiar_hints)
foreach(lang C CXX Fortran)
if(IS_ABSOLUTE "${CMAKE_${lang}_COMPILER}")
get_filename_component(_hint "${CMAKE_${lang}_COMPILER}" PATH)
list(APPEND _intel_xiar_hints ${_hint})
endif()
endforeach()
find_program(XIAR NAMES xiar HINTS ${_intel_xiar_hints})
mark_as_advanced(XIAR)
endif()
macro(__linux_compiler_intel_llvm lang)
set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "-fPIC")
set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIE")
@ -37,19 +25,5 @@ macro(__linux_compiler_intel_llvm lang)
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG "-Wl,")
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG_SEP ",")
set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
if(XIAR)
# INTERPROCEDURAL_OPTIMIZATION
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO -ipo)
set(CMAKE_${lang}_CREATE_STATIC_LIBRARY_IPO
"${XIAR} cr <TARGET> <LINK_FLAGS> <OBJECTS> "
"${XIAR} -s <TARGET> ")
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
set(_CMAKE_${lang}_IPO_LEGACY_BEHAVIOR YES)
else()
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO)
endif()
set(CMAKE_${lang}_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
endmacro()