-msse3 -mssse3 -D__ANDROID__ -D__i686__" "-march=core-avx-i -mtune=core-avx-i -m64 -mmmx -msse2 -...msse3 -mssse3 -msse4.1 -msse4.2 -mpopcnt -D__ANDROID__ -D__x86_64__" ) extra_ldflags="-nostdlib" #共同配置项...D__ANDROID__ -D__ARM_ARCH_8__ -D__ARM_ARCH_8A__" "-std=gnu11 -march=i686 -mtune=i686 -m32 -mmmx -msse2...-msse3 -mssse3 -D__ANDROID__ -D__i686__" "-std=gnu11 -march=core-avx-i -mtune=core-avx-i -m64 -mmmx...-msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mpopcnt -D__ANDROID__ -D__x86_64__" ) #共同配置项,可以额外增加相关配置,详情可查看源文件目录下
fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse...-msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG C++ flags (...-msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG C Compiler...-msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG C flags (Debug): -fsigned-char...-msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG Linker flags (Release): Linker
案例 目前知道的两个指令是msse指令集的movaps和vmovaps,都是用来给int128赋值的,例如下面两种场景: (访问rax+0x30地址即 0x328dba8 + 0x30 = 0x328dbd8...+0x30地址即 0x2d20b48 + 0x20 = 0x2d20b68,对齐8字节,但没对齐16字节) 复现 #include // gcc -g -O2 -Wall -msse4.2...st->a = 0; st->i = tmp * 123; st->b = 0; st = st; return st->i + 1 == 123; } gcc -g -O2 -Wall -msse4.2
7.3.1 CXX_COMPILER /opt/rh/devtoolset-7/root/usr/bin/g++ CXX_COMPILER_VERSION 7.3.1 C_FLAGS -pipe -msse4.1...-msse4.2 -mpopcnt -fno-omit-frame-pointer -Wall -no-pie -O2 -DNDEBUG CXX_FLAGS -pipe -msse4.1 -...msse4.2 -mpopcnt -fno-omit-frame-pointer -Wall -Wnon-virtual-dtor -no-pie -O2 -DNDEBUG LINK_FLAGS
found") if(UNIX) SET(CMAKE_C_FLAGS_RELEASE "-O3 -Wall -Wextra -Wunused-variable -g -fPIC -msse2...-msse3 -msse4 -ffast-math") SET(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -Wextra -Wunused-variable...-g -fPIC -msse2 -msse3 -msse4 -ffast-math") endif(UNIX) SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS...-msse3 -msse4 -ffast-math") SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -O3 -Wall -std=c...++0x -Wno-unknown-pragmas -Wunused-variable -g -fPIC -msse2 -msse3 -msse4 -ffast-math") endif(UNIX
11 23:09:57 UTC 2020 Compiler: gcc version 7.3.0 (crosstool-NG 1.23.0.450-d54ae) Options: -O3 -m64 -msse2...64-bit Built on Wed Jun 7 15:53:42 EDT 2017 Compiler: gcc version 4.8.2 (GCC) Options: -O3 -m64 -msse2
-msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 Extra checks: none Detect : SSE SSE2...-msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -mf16c -mavx2 Extra checks: none...-msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -mf16c -mfma -mavx2 Extra checks...-msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 Extra checks: none Detect : SSE SSE2...-msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -mf16c -mavx2 Extra checks: none
fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse...-msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG -- C++ flags...-msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG -- C Compiler...-msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG -- C flags (Debug): -fsigned-char...-msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG -- Linker flags (Release): -Wl,-
为例说明如何使用参数传递: # tar xzvf httpd-2.0.55.tar.gz # cd httpd-2.0.55 CHOST="i686-pc-linux-gnu" \ CFLAGS="-O3 \ -msse2...-mfpmath=sse \ -mcpu=pentium4 \ -march=pentium4 \ -pipe \ -fomit-frame-pointer" \ CXXFLAGS="-O3 \ -msse2...下面对其中的一些参数进行具体说明: -O3:相对于-O、-O1、-O2,-O3开启了所有GCC支持的优化特性; -msse2:开启CPU所支持的sse2指令集; -mmmx:参考-msse2 -mfpmath
Wherever you see 'bazel build' in the documentation, you can add the flags -c opt --copt=-msse4.1 --copt...=-msse4.2 --copt=-mavx --copt=-mavx2 --copt=-mfma --copt=-O3 (or some subset of these flags)....For example: bazel build -c opt --copt=-msse4.1 --copt=-msse4.2 --copt=-mavx --copt=-mavx2 --copt=-mfma
TM) i7 CPU 920 @ 2.67GHz /etc/make.conf内容 CHOST="x86_64-pc-linux-gnu" CFLAGS="-march=core2 -msse4
Ignoring FOUND: extra_compile_args = ['-msse3', '-I/System/Library/Frameworks/vecLib.framework...define_macros = [('NO_ATLAS_INFO', 3), ('HAVE_CBLAS', None)] FOUND: extra_compile_args = ['-msse3...3.10/lib', '/usr/local/lib', '/usr/lib'] NOT AVAILABLE FOUND: extra_compile_args = ['-msse3
Intel将这类指令和函数统称为intrinsics,官方提供的速查手册见这里; 开启编译器的优化(-msse、-msse2等等),编译器会自动将符合条件的情景(如数组相加、矩阵相乘等)编译为intrinsic
-nostdlib:不链接系统标准启动文件和标准库文件,只把指定的文件传递给链接器 -W:打印一些额外的警告信息 -w:禁止显示所有警告信息 -msse/-msse2/mmx/mno-sse/mno-sse2
ERROR: failed to run command: gmake TARGET_STRIP=@: CCDEBUG=-g XCFLAGS='-DLUAJIT_ENABLE_LUA52COMPAT -msse4.2
project(rsa) set(CMAKE_CXX_STANDARD 11) set(OPENSSL_USE_STATIC_LIBS TRUE) set(CMAKE_CXX_FLAGS "-O4 -msse2...-msse3 -msse4 -std=c++11") include_directories(.
API-clang" CROSS_PREFIX="$TOOLCHAINS/bin/$TARGET-" #EXTRA_CFLAGS="$CFLAG -march=$CPU -mtune=intel -msse4.2...-mpopcnt -m64" EXTRA_CFLAGS="$CFLAG -march=$CPU -msse4.2 -mpopcnt -m64" EXTRA_LDFLAGS="$LDFLAG
造成的栅极隧穿漏电流会更大,至于Decap 对FinFet 工艺的作用与影响,待老驴研读后再搬来, ---- 驴说IC 参考文献: http://article.sapub.org/10.5923.s.msse
另外,如果浮点运算使用-mfpmath=sse -msse的话,浮点除法速度有近百倍的提高,这对浮点运算偏重的如音、视频解码,编码很重要。
领取专属 10元无门槛券
手把手带您无忧上云