63 lines
2.1 KiB
CMake
63 lines
2.1 KiB
CMake
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# SPDX-License-Identifier: Apache-2.0
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# ARM架构优化配置文件
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# 检查是否为ARM架构
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if (${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm64" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm")
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# 启用NEON指令集优化
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if (${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm64")
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# ARM64架构
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add_compile_options(-march=armv8-a+simd)
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# 如果支持 crypto 扩展，则启用
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include(CheckCSourceCompiles)
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check_c_source_compiles("
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#include <arm_neon.h>
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int main() {
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uint8x16_t a = vdupq_n_u8(0);
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uint8x16_t b = vaeseq_u8(a, vdupq_n_u8(0));
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return 0;
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}" HAVE_ARM64_CRYPTO)
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if (HAVE_ARM64_CRYPTO)
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add_compile_options(-march=armv8-a+crypto)
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add_compile_definitions(HAVE_ARM64_CRYPTO)
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endif()
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else()
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# ARM32架构
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add_compile_options(-march=armv7-a -mfpu=neon)
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endif()
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# 通用ARM优化选项
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# 启用循环展开和其他优化
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add_compile_options(-O3 -funroll-loops)
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# 启用链接时优化(LTO)
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include(CheckIPOSupported)
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check_ipo_supported(RESULT result)
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if(result)
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set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
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# 检查编译器是否支持 thin LTO
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include(CheckCCompilerFlag)
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# check_c_compiler_flag("-flto=thin" HAS_THIN_LTO)
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# if(HAS_THIN_LTO)
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# add_compile_options(-flto=thin)
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# else()
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# # 回退到普通 LTO
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# add_compile_options(-flto)
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# endif()
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add_compile_options(-flto=auto)
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endif()
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# 启用快速数学运算（可能影响精度）
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# add_compile_options(-ffast-math)
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# 针对特定CPU的优化
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# 可以根据目标设备替换为具体的CPU型号，如"cortex-a72"等
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add_compile_options(-mtune=cortex-a76)
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message(STATUS "ARM optimizations enabled for ${CMAKE_SYSTEM_PROCESSOR}")
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# 添加NEON支持的定义
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add_compile_definitions(HAVE_NEON)
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endif()
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