stellar

UCI Chess engine written in C++20
git clone git://git.dimitrijedobrota.com/stellar.git
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commit 9ee804501d5cd5fd02da68ec89e975d29876e389
parent 75e27270d7d82dceb3274989abbe149546584541
author Dimitrije Dobrota < mail@dimitrijedobrota.com >
date Mon, 11 Mar 2024 14:03:08 +0000

Enable link-time optimization properly

Diffstat:
M CMakeLists.txt | +++++++++++ -----------
M src/engine/CMakeLists.txt | +

2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/ CMakeLists.txt b/ CMakeLists.txt

@@ -3,7 +3,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)


project(
Stellar
VERSION 1.2.0
VERSION 1.2.1
DESCRIPTION "Chess engine written in C++"
HOMEPAGE_URL https://git.dimitrijedobrota.com/stellar.git
LANGUAGES CXX

@@ -35,16 +35,6 @@ function(stellar_target_precompile_headers)

endif()
endfunction()

CHECK_CXX_COMPILER_FLAG("-flto" COMPILER_SUPPORTS_LTO)
if(COMPILER_SUPPORTS_LTO)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
endif()

CHECK_CXX_COMPILER_FLAG("-fno-fat-lto-objects" COMPILER_SUPPORTS_LTO_NOFAT)
if(COMPILER_SUPPORTS_LTO_NOFAT)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-fat-lto-objects")
endif()

CHECK_CXX_COMPILER_FLAG("-fconstexpr-ops-limit=10000000000" COMPILER_SUPPORTS_CONSTEXPR_OPS_LIMIT)
if(COMPILER_SUPPORTS_CONSTEXPR_OPS_LIMIT)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fconstexpr-ops-limit=1000000000")

@@ -61,3 +51,13 @@ if(COMPILER_SUPPORTS_MARCH_NATIVE)

endif()

add_subdirectory(src)

include(CheckIPOSupported)
check_ipo_supported(RESULT lto_supported OUTPUT lto_error)

if( lto_supported )
message(STATUS "IPO / LTO enabled")
set_property(TARGET engine PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
else()
message(STATUS "IPO / LTO not supported: <${error}>")
endif()

diff --git a/ src/engine/CMakeLists.txt b/ src/engine/CMakeLists.txt

@@ -4,6 +4,7 @@ add_executable(engine

engine.cpp
)


target_link_libraries(engine
PRIVATE Stellar_version
PRIVATE board