builder: Setup the cache file for serene binary
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@ -99,6 +99,7 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
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-Wdouble-promotion
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-Wformat=2)
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add_link_options(-fuse-ld=lld)
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# if ((SERENE_USE_LIBCXX) AND (NOT (SERENE_TOOLCHAIN_PATH)))
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# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -v")
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# set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++abi")
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@ -45,6 +45,8 @@ set(CMAKE_CXX_COMPILER "${SERENE_LLVM_BIN}/clang++" CACHE PATH "")
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# a mistake
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set(BDWgc_DIR "${SERENE_PKG_DIR}/bdwgc.${BDWGC_VERSION}")
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set(MUSL_DIR "${SERENE_PKG_DIR}/musl.${MUSL_VERSION}/" CACHE PATH "")
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE BOOL "")
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set(SERENE_CCACHE_DIR "$ENV{HOME}/.ccache" CACHE STRING "")
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set(CMAKE_BUILD_TYPE "Debug")
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@ -49,8 +49,7 @@ set_target_properties(serene PROPERTIES
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SOVERSION ${PROJECT_VERSION_MAJOR}
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# Warn on unused libs
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LINK_WHAT_YOU_USE TRUE
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# LTO support
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INTERPROCEDURAL_OPTIMIZATION TRUE)
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)
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if (CPP_20_SUPPORT)
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target_compile_features(serene PRIVATE cxx_std_20)
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@ -64,9 +63,21 @@ target_include_directories(serene
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${CMAKE_CURRENT_SOURCE_DIR}/include
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)
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# We don't want the generated files from table gen
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# to be treated as local since the contain warnings
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target_include_directories(serene SYSTEM PRIVATE ${PROJECT_BINARY_DIR}/include)
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target_include_directories(serene SYSTEM PRIVATE
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${PROJECT_BINARY_DIR}/include
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# ${SERENE_LLVM_DIR}/include/x86_64-unknown-linux-gnu/c++/v1
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# ${SERENE_LLVM_DIR}/include/c++/v1
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#${MUSL_DIR}/include
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)
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target_link_directories(serene
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PRIVATE
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# ${SERENE_LLVM_DIR}/lib
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# ${MUSL_DIR}/lib
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)
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# Autogenerate the `config.h` file
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configure_file(${CMAKE_CURRENT_SOURCE_DIR}/include/serene/config.h.in include/serene/config.h)
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@ -74,9 +85,17 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/include/serene/config.h.in include/se
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target_compile_options(serene
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PRIVATE
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-stdlib=libc++
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# LLVM has it's own RTTI
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-fno-rtti
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-fno-builtin-strlen
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# Don't link against system's default libc++ or libstdc++
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# -nostdinc++
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# -nostdlib++
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# Do not link any default library, We want to be explicit
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# -nodefaultlibs
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# -nostdinc
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# Dedicate a section to each function, so the linker
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# can do a better job on dead code elimination
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@ -106,14 +125,13 @@ target_compile_options(serene
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target_link_options(serene
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PRIVATE
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-fuse-ld=lld
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-Wl,-gc-sections
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-stdlib=libc++
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-lc++abi
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-Wl,--gc-sections
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$<$<CONFIG:RELEASE>:-s>
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$<$<CONFIG:DEBUG>:-fsanitize=address>
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$<$<CONFIG:DEBUG>:-static-libsan>
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# Do not link against shared libraries
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--static
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)
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@ -126,15 +144,18 @@ if(SERENE_ENABLE_TIDY)
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set_target_properties(serene PROPERTIES CXX_CLANG_TIDY ${CLANG_TIDY_PATH})
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endif()
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# TODO: Setup the THINLTO on release
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if(SERENE_ENABLE_THINLTO)
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include(CheckIPOSupported)
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# Optional IPO. Do not use IPO if it's not supported by compiler.
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check_ipo_supported(RESULT result OUTPUT output)
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if(result)
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set_property(TARGET serene PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
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else()
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message(WARNING "IPO is not supported: ${output}")
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message(WARNING "Make sure to use lld")
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endif()
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endif()
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# target_link_libraries(serene
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# PRIVATE
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# )
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include(GNUInstallDirs)
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@ -16,4 +16,36 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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int main() { return 0; }
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#include <iomanip>
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#include <memory>
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#include <iostream>
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struct Vec3
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{
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int x, y, z;
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// following constructor is no longer needed since C++20
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Vec3(int x = 0, int y = 0, int z = 0) noexcept : x(x), y(y), z(z) { }
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friend std::ostream& operator<<(std::ostream& os, const Vec3& v)
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{
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return os << "{ x=" << v.x << ", y=" << v.y << ", z=" << v.z << " }";
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}
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};
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int main()
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{
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// Use the default constructor.
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std::unique_ptr<Vec3> v1 = std::make_unique<Vec3>();
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// Use the constructor that matches these arguments
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std::unique_ptr<Vec3> v2 = std::make_unique<Vec3>(0,1,2);
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// Create a unique_ptr to an array of 5 elements
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std::unique_ptr<Vec3[]> v3 = std::make_unique<Vec3[]>(5);
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std::cout << "make_unique<Vec3>(): " << *v1 << '\n'
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<< "make_unique<Vec3>(0,1,2): " << *v2 << '\n'
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<< "make_unique<Vec3[]>(5): ";
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for (int i = 0; i < 5; i++)
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std::cout << std::setw(i ? 30 : 0) << v3[static_cast<size_t>(i)] << '\n';
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}
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