if(ARCH_X86_64) fastd_cipher_impl(salsa20 xmm salsa20_xmm.c salsa20_amd64_xmm6.s ) endif(ARCH_X86_64) if(ARCH_X86) fastd_cipher_impl(salsa20 xmm salsa20_xmm.c salsa20_x86_xmm5.s ) endif(ARCH_X86)