cmakelist fix, add +crypto flag when use arm crc (#5750)
Summary: cmake list add +crypto flag when use armv8 cpu the function crc32c_arm64 use HAVE_ARM64_CRYPTO to check if can enable arm-neon instructions : #ifdef HAVE_ARM64_CRYPTO /* Crc32c Parallel computation * Algorithm comes from Intel whitepaper: * crc-iscsi-polynomial-crc32-instruction-paper * * Input data is divided into three equal-sized blocks * Three parallel blocks (crc0, crc1, crc2) for 1024 Bytes * One Block: 42(BLK_LENGTH) * 8(step length: crc32c_u64) bytes */ but the cmakelist not check and pass crypto flag now I check the default Makefile has it: ifeq (,$(shell $(CXX) -fsyntax-only -march=armv8-a+crc -xc /dev/null 2>&1)) CXXFLAGS += -march=armv8-a+crc+crypto CFLAGS += -march=armv8-a+crc+crypto ARMCRC_SOURCE=1 endif Pull Request resolved: https://github.com/facebook/rocksdb/pull/5750 Differential Revision: D17242027 fbshipit-source-id: 443c9b89755b4bc34e265205ab922db1b2e14bde
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@ -200,11 +200,11 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
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endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
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endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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CHECK_C_COMPILER_FLAG("-march=armv8-a+crc" HAS_ARMV8_CRC)
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CHECK_C_COMPILER_FLAG("-march=armv8-a+crc+crypto" HAS_ARMV8_CRC)
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if(HAS_ARMV8_CRC)
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if(HAS_ARMV8_CRC)
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message(STATUS " HAS_ARMV8_CRC yes")
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message(STATUS " HAS_ARMV8_CRC yes")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a+crc -Wno-unused-function")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a+crc+crypto -Wno-unused-function")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv8-a+crc -Wno-unused-function")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv8-a+crc+crypto -Wno-unused-function")
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endif(HAS_ARMV8_CRC)
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endif(HAS_ARMV8_CRC)
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endif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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endif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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