-rw-r--r-- 22800 lib25519-20241004/cryptoint/crypto_int64.h raw
/* auto-generated: cd cryptoint; ./autogen */ /* cryptoint 20241003 */ #ifndef crypto_int64_h #define crypto_int64_h #include <inttypes.h> #define crypto_int64 int64_t #define crypto_int64_unsigned uint64_t #define crypto_int64_optblocker lib25519_int64_optblocker extern volatile crypto_int64 crypto_int64_optblocker; __attribute__((unused)) static inline crypto_int64 crypto_int64_load(const unsigned char *crypto_int64_s) { crypto_int64 crypto_int64_z = 0; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 0; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 8; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 16; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 24; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 32; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 40; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 48; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 56; return crypto_int64_z; } __attribute__((unused)) static inline crypto_int64 crypto_int64_load_bigendian(const unsigned char *crypto_int64_s) { crypto_int64 crypto_int64_z = 0; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 56; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 48; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 40; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 32; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 24; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 16; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 8; crypto_int64_z |= ((crypto_int64) (*crypto_int64_s++)) << 0; return crypto_int64_z; } __attribute__((unused)) static inline void crypto_int64_store(unsigned char *crypto_int64_s,crypto_int64 crypto_int64_x) { *crypto_int64_s++ = crypto_int64_x >> 0; *crypto_int64_s++ = crypto_int64_x >> 8; *crypto_int64_s++ = crypto_int64_x >> 16; *crypto_int64_s++ = crypto_int64_x >> 24; *crypto_int64_s++ = crypto_int64_x >> 32; *crypto_int64_s++ = crypto_int64_x >> 40; *crypto_int64_s++ = crypto_int64_x >> 48; *crypto_int64_s++ = crypto_int64_x >> 56; } __attribute__((unused)) static inline void crypto_int64_store_bigendian(unsigned char *crypto_int64_s,crypto_int64 crypto_int64_x) { *crypto_int64_s++ = crypto_int64_x >> 56; *crypto_int64_s++ = crypto_int64_x >> 48; *crypto_int64_s++ = crypto_int64_x >> 40; *crypto_int64_s++ = crypto_int64_x >> 32; *crypto_int64_s++ = crypto_int64_x >> 24; *crypto_int64_s++ = crypto_int64_x >> 16; *crypto_int64_s++ = crypto_int64_x >> 8; *crypto_int64_s++ = crypto_int64_x >> 0; } __attribute__((unused)) static inline crypto_int64 crypto_int64_negative_mask(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("sarq $63,%0" : "+r"(crypto_int64_x) : : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_y; __asm__ ("asr %0,%1,63" : "=r"(crypto_int64_y) : "r"(crypto_int64_x) : ); return crypto_int64_y; #else crypto_int64_x >>= 64-6; crypto_int64_x += crypto_int64_optblocker; crypto_int64_x >>= 5; return crypto_int64_x; #endif } __attribute__((unused)) static inline crypto_int64_unsigned crypto_int64_unsigned_topbit_01(crypto_int64_unsigned crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("shrq $63,%0" : "+r"(crypto_int64_x) : : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_y; __asm__ ("lsr %0,%1,63" : "=r"(crypto_int64_y) : "r"(crypto_int64_x) : ); return crypto_int64_y; #else crypto_int64_x >>= 64-6; crypto_int64_x += crypto_int64_optblocker; crypto_int64_x >>= 5; return crypto_int64_x; #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_negative_01(crypto_int64 crypto_int64_x) { return crypto_int64_unsigned_topbit_01(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_topbit_mask(crypto_int64 crypto_int64_x) { return crypto_int64_negative_mask(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_topbit_01(crypto_int64 crypto_int64_x) { return crypto_int64_unsigned_topbit_01(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_bottombit_mask(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("andq $1,%0" : "+r"(crypto_int64_x) : : "cc"); return -crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_y; __asm__ ("sbfx %0,%1,0,1" : "=r"(crypto_int64_y) : "r"(crypto_int64_x) : ); return crypto_int64_y; #else crypto_int64_x &= 1 + crypto_int64_optblocker; return -crypto_int64_x; #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_bottombit_01(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("andq $1,%0" : "+r"(crypto_int64_x) : : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_y; __asm__ ("ubfx %0,%1,0,1" : "=r"(crypto_int64_y) : "r"(crypto_int64_x) : ); return crypto_int64_y; #else crypto_int64_x &= 1 + crypto_int64_optblocker; return crypto_int64_x; #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_bitinrangepublicpos_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("sarq %%cl,%0" : "+r"(crypto_int64_x) : "c"(crypto_int64_s) : "cc"); #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("asr %0,%0,%1" : "+r"(crypto_int64_x) : "r"(crypto_int64_s) : ); #else crypto_int64_x >>= crypto_int64_s ^ crypto_int64_optblocker; #endif return crypto_int64_bottombit_mask(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_bitinrangepublicpos_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("sarq %%cl,%0" : "+r"(crypto_int64_x) : "c"(crypto_int64_s) : "cc"); #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("asr %0,%0,%1" : "+r"(crypto_int64_x) : "r"(crypto_int64_s) : ); #else crypto_int64_x >>= crypto_int64_s ^ crypto_int64_optblocker; #endif return crypto_int64_bottombit_01(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_shlmod(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("shlq %%cl,%0" : "+r"(crypto_int64_x) : "c"(crypto_int64_s) : "cc"); #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("lsl %0,%0,%1" : "+r"(crypto_int64_x) : "r"(crypto_int64_s) : ); #else int crypto_int64_k, crypto_int64_l; for (crypto_int64_l = 0,crypto_int64_k = 1;crypto_int64_k < 64;++crypto_int64_l,crypto_int64_k *= 2) crypto_int64_x ^= (crypto_int64_x ^ (crypto_int64_x << crypto_int64_k)) & crypto_int64_bitinrangepublicpos_mask(crypto_int64_s,crypto_int64_l); #endif return crypto_int64_x; } __attribute__((unused)) static inline crypto_int64 crypto_int64_shrmod(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("sarq %%cl,%0" : "+r"(crypto_int64_x) : "c"(crypto_int64_s) : "cc"); #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("asr %0,%0,%1" : "+r"(crypto_int64_x) : "r"(crypto_int64_s) : ); #else int crypto_int64_k, crypto_int64_l; for (crypto_int64_l = 0,crypto_int64_k = 1;crypto_int64_k < 64;++crypto_int64_l,crypto_int64_k *= 2) crypto_int64_x ^= (crypto_int64_x ^ (crypto_int64_x >> crypto_int64_k)) & crypto_int64_bitinrangepublicpos_mask(crypto_int64_s,crypto_int64_l); #endif return crypto_int64_x; } __attribute__((unused)) static inline crypto_int64 crypto_int64_bitmod_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { crypto_int64_x = crypto_int64_shrmod(crypto_int64_x,crypto_int64_s); return crypto_int64_bottombit_mask(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_bitmod_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_s) { crypto_int64_x = crypto_int64_shrmod(crypto_int64_x,crypto_int64_s); return crypto_int64_bottombit_01(crypto_int64_x); } __attribute__((unused)) static inline crypto_int64 crypto_int64_nonzero_mask(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n testq %2,%2\n cmovneq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n csetm %0,ne" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else crypto_int64_x |= -crypto_int64_x; return crypto_int64_negative_mask(crypto_int64_x); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_nonzero_01(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n testq %2,%2\n cmovneq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n cset %0,ne" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else crypto_int64_x |= -crypto_int64_x; return crypto_int64_unsigned_topbit_01(crypto_int64_x); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_positive_mask(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n testq %2,%2\n cmovgq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n csetm %0,gt" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else crypto_int64 crypto_int64_z = -crypto_int64_x; crypto_int64_z ^= crypto_int64_x & crypto_int64_z; return crypto_int64_negative_mask(crypto_int64_z); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_positive_01(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n testq %2,%2\n cmovgq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n cset %0,gt" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else crypto_int64 crypto_int64_z = -crypto_int64_x; crypto_int64_z ^= crypto_int64_x & crypto_int64_z; return crypto_int64_unsigned_topbit_01(crypto_int64_z); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_zero_mask(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n testq %2,%2\n cmoveq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n csetm %0,eq" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else return ~crypto_int64_nonzero_mask(crypto_int64_x); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_zero_01(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n testq %2,%2\n cmoveq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,0\n cset %0,eq" : "=r"(crypto_int64_z) : "r"(crypto_int64_x) : "cc"); return crypto_int64_z; #else return 1-crypto_int64_nonzero_01(crypto_int64_x); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_unequal_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n cmpq %3,%2\n cmovneq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n csetm %0,ne" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return crypto_int64_nonzero_mask(crypto_int64_x ^ crypto_int64_y); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_unequal_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n cmpq %3,%2\n cmovneq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n cset %0,ne" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return crypto_int64_nonzero_01(crypto_int64_x ^ crypto_int64_y); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_equal_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n cmpq %3,%2\n cmoveq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n csetm %0,eq" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return ~crypto_int64_unequal_mask(crypto_int64_x,crypto_int64_y); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_equal_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n cmpq %3,%2\n cmoveq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n cset %0,eq" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return 1-crypto_int64_unequal_01(crypto_int64_x,crypto_int64_y); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_min(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("cmpq %1,%0\n cmovgq %1,%0" : "+r"(crypto_int64_x) : "r"(crypto_int64_y) : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("cmp %0,%1\n csel %0,%0,%1,lt" : "+r"(crypto_int64_x) : "r"(crypto_int64_y) : "cc"); return crypto_int64_x; #else crypto_int64 crypto_int64_r = crypto_int64_y ^ crypto_int64_x; crypto_int64 crypto_int64_z = crypto_int64_y - crypto_int64_x; crypto_int64_z ^= crypto_int64_r & (crypto_int64_z ^ crypto_int64_y); crypto_int64_z = crypto_int64_negative_mask(crypto_int64_z); crypto_int64_z &= crypto_int64_r; return crypto_int64_x ^ crypto_int64_z; #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_max(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) __asm__ ("cmpq %1,%0\n cmovlq %1,%0" : "+r"(crypto_int64_x) : "r"(crypto_int64_y) : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) __asm__ ("cmp %0,%1\n csel %0,%1,%0,lt" : "+r"(crypto_int64_x) : "r"(crypto_int64_y) : "cc"); return crypto_int64_x; #else crypto_int64 crypto_int64_r = crypto_int64_y ^ crypto_int64_x; crypto_int64 crypto_int64_z = crypto_int64_y - crypto_int64_x; crypto_int64_z ^= crypto_int64_r & (crypto_int64_z ^ crypto_int64_y); crypto_int64_z = crypto_int64_negative_mask(crypto_int64_z); crypto_int64_z &= crypto_int64_r; return crypto_int64_y ^ crypto_int64_z; #endif } __attribute__((unused)) static inline void crypto_int64_minmax(crypto_int64 *crypto_int64_p,crypto_int64 *crypto_int64_q) { crypto_int64 crypto_int64_x = *crypto_int64_p; crypto_int64 crypto_int64_y = *crypto_int64_q; #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_z; __asm__ ("cmpq %2,%1\n movq %1,%0\n cmovgq %2,%1\n cmovgq %0,%2" : "=&r"(crypto_int64_z), "+&r"(crypto_int64_x), "+r"(crypto_int64_y) : : "cc"); *crypto_int64_p = crypto_int64_x; *crypto_int64_q = crypto_int64_y; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_r, crypto_int64_s; __asm__ ("cmp %2,%3\n csel %0,%2,%3,lt\n csel %1,%3,%2,lt" : "=&r"(crypto_int64_r), "=r"(crypto_int64_s) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); *crypto_int64_p = crypto_int64_r; *crypto_int64_q = crypto_int64_s; #else crypto_int64 crypto_int64_r = crypto_int64_y ^ crypto_int64_x; crypto_int64 crypto_int64_z = crypto_int64_y - crypto_int64_x; crypto_int64_z ^= crypto_int64_r & (crypto_int64_z ^ crypto_int64_y); crypto_int64_z = crypto_int64_negative_mask(crypto_int64_z); crypto_int64_z &= crypto_int64_r; crypto_int64_x ^= crypto_int64_z; crypto_int64_y ^= crypto_int64_z; *crypto_int64_p = crypto_int64_x; *crypto_int64_q = crypto_int64_y; #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_smaller_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n cmpq %3,%2\n cmovlq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n csetm %0,lt" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else crypto_int64 crypto_int64_r = crypto_int64_x ^ crypto_int64_y; crypto_int64 crypto_int64_z = crypto_int64_x - crypto_int64_y; crypto_int64_z ^= crypto_int64_r & (crypto_int64_z ^ crypto_int64_x); return crypto_int64_negative_mask(crypto_int64_z); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_smaller_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n cmpq %3,%2\n cmovlq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n cset %0,lt" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else crypto_int64 crypto_int64_r = crypto_int64_x ^ crypto_int64_y; crypto_int64 crypto_int64_z = crypto_int64_x - crypto_int64_y; crypto_int64_z ^= crypto_int64_r & (crypto_int64_z ^ crypto_int64_x); return crypto_int64_unsigned_topbit_01(crypto_int64_z); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_leq_mask(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $-1,%1\n cmpq %3,%2\n cmovleq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n csetm %0,le" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return ~crypto_int64_smaller_mask(crypto_int64_y,crypto_int64_x); #endif } __attribute__((unused)) static inline crypto_int64 crypto_int64_leq_01(crypto_int64 crypto_int64_x,crypto_int64 crypto_int64_y) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 crypto_int64_q,crypto_int64_z; __asm__ ("xorq %0,%0\n movq $1,%1\n cmpq %3,%2\n cmovleq %1,%0" : "=&r"(crypto_int64_z), "=&r"(crypto_int64_q) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #elif defined(__GNUC__) && defined(__aarch64__) crypto_int64 crypto_int64_z; __asm__ ("cmp %1,%2\n cset %0,le" : "=r"(crypto_int64_z) : "r"(crypto_int64_x), "r"(crypto_int64_y) : "cc"); return crypto_int64_z; #else return 1-crypto_int64_smaller_01(crypto_int64_y,crypto_int64_x); #endif } __attribute__((unused)) static inline int crypto_int64_ones_num(crypto_int64 crypto_int64_x) { crypto_int64_unsigned crypto_int64_y = crypto_int64_x; const crypto_int64 C0 = 0x5555555555555555; const crypto_int64 C1 = 0x3333333333333333; const crypto_int64 C2 = 0x0f0f0f0f0f0f0f0f; crypto_int64_y -= ((crypto_int64_y >> 1) & C0); crypto_int64_y = (crypto_int64_y & C1) + ((crypto_int64_y >> 2) & C1); crypto_int64_y = (crypto_int64_y + (crypto_int64_y >> 4)) & C2; crypto_int64_y += crypto_int64_y >> 8; crypto_int64_y += crypto_int64_y >> 16; crypto_int64_y = (crypto_int64_y + (crypto_int64_y >> 32)) & 0xff; return crypto_int64_y; } __attribute__((unused)) static inline int crypto_int64_bottomzeros_num(crypto_int64 crypto_int64_x) { #if defined(__GNUC__) && defined(__x86_64__) crypto_int64 fallback = 64; __asm__ ("bsfq %0,%0\n cmoveq %1,%0" : "+&r"(crypto_int64_x) : "r"(fallback) : "cc"); return crypto_int64_x; #elif defined(__GNUC__) && defined(__aarch64__) int64_t crypto_int64_y; __asm__ ("rbit %0,%1\n clz %0,%0" : "=r"(crypto_int64_y) : "r"(crypto_int64_x) : ); return crypto_int64_y; #else crypto_int64 crypto_int64_y = crypto_int64_x ^ (crypto_int64_x-1); crypto_int64_y = ((crypto_int64) crypto_int64_y) >> 1; crypto_int64_y &= ~(crypto_int64_x & (((crypto_int64) 1) << (64-1))); return crypto_int64_ones_num(crypto_int64_y); #endif } #endif