mirror of
https://github.com/google/benchmark.git
synced 2024-12-27 13:00:36 +08:00
db4f581fbb
As predicted, the cmake part of the change is contentious.
https://github.com/google/benchmark/pull/1496#issuecomment-1276508266
This partially reverts commit 229bc5a937.
68 lines
2.3 KiB
CMake
68 lines
2.3 KiB
CMake
set(CLANG_SUPPORTED_VERSION "5.0.0")
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set(GCC_SUPPORTED_VERSION "5.5.0")
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL ${CLANG_SUPPORTED_VERSION})
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message (WARNING
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"Unsupported Clang version " ${CMAKE_CXX_COMPILER_VERSION}
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". Expected is " ${CLANG_SUPPORTED_VERSION}
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". Assembly tests may be broken.")
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endif()
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elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL ${GCC_SUPPORTED_VERSION})
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message (WARNING
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"Unsupported GCC version " ${CMAKE_CXX_COMPILER_VERSION}
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". Expected is " ${GCC_SUPPORTED_VERSION}
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". Assembly tests may be broken.")
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endif()
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else()
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message (WARNING "Unsupported compiler. Assembly tests may be broken.")
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endif()
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include(split_list)
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set(ASM_TEST_FLAGS "")
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check_cxx_compiler_flag(-O3 BENCHMARK_HAS_O3_FLAG)
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if (BENCHMARK_HAS_O3_FLAG)
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list(APPEND ASM_TEST_FLAGS -O3)
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endif()
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check_cxx_compiler_flag(-g0 BENCHMARK_HAS_G0_FLAG)
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if (BENCHMARK_HAS_G0_FLAG)
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list(APPEND ASM_TEST_FLAGS -g0)
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endif()
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check_cxx_compiler_flag(-fno-stack-protector BENCHMARK_HAS_FNO_STACK_PROTECTOR_FLAG)
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if (BENCHMARK_HAS_FNO_STACK_PROTECTOR_FLAG)
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list(APPEND ASM_TEST_FLAGS -fno-stack-protector)
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endif()
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split_list(ASM_TEST_FLAGS)
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string(TOUPPER "${CMAKE_CXX_COMPILER_ID}" ASM_TEST_COMPILER)
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macro(add_filecheck_test name)
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cmake_parse_arguments(ARG "" "" "CHECK_PREFIXES" ${ARGV})
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add_library(${name} OBJECT ${name}.cc)
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target_link_libraries(${name} PRIVATE benchmark::benchmark)
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set_target_properties(${name} PROPERTIES COMPILE_FLAGS "-S ${ASM_TEST_FLAGS}")
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set(ASM_OUTPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${name}.s")
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add_custom_target(copy_${name} ALL
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COMMAND ${PROJECT_SOURCE_DIR}/tools/strip_asm.py
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$<TARGET_OBJECTS:${name}>
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${ASM_OUTPUT_FILE}
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BYPRODUCTS ${ASM_OUTPUT_FILE})
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add_dependencies(copy_${name} ${name})
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if (NOT ARG_CHECK_PREFIXES)
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set(ARG_CHECK_PREFIXES "CHECK")
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endif()
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foreach(prefix ${ARG_CHECK_PREFIXES})
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add_test(NAME run_${name}_${prefix}
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COMMAND
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${LLVM_FILECHECK_EXE} ${name}.cc
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--input-file=${ASM_OUTPUT_FILE}
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--check-prefixes=CHECK,CHECK-${ASM_TEST_COMPILER}
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
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endforeach()
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endmacro()
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