30     // This is not a CRC32.  It's Just A Hash that uses those instructions because they're fast.
35         uint64_t hash = seed;  in hash_fn()  local
38             // to hash 8 bytes per step.  Both 3 and independent are important:  in hash_fn()
40             uint64_t a = hash,  in hash_fn()
41                      b = hash,  in hash_fn()
42                      c = hash;  in hash_fn()
51             hash = _mm_crc32_u32(a, _mm_crc32_u32(b, c));  in hash_fn()
56             hash = _mm_crc32_u64(hash, unaligned_load<uint64_t>(data));  in hash_fn()
63             hash = _mm_crc32_u64(hash, unaligned_load<uint64_t>(data));  in hash_fn()
69         auto hash32 = (uint32_t)hash;  in hash_fn()
87     /*not static*/ inline uint32_t hash_fn(const void* vdata, size_t bytes, uint32_t hash) {  in hash_fn()  argument
92             // to hash 4 bytes per step.  Both 3 and independent are important:  in hash_fn()
94             uint32_t a = hash,  in hash_fn()
95                      b = hash,  in hash_fn()
96                      c = hash;  in hash_fn()
105             hash = _mm_crc32_u32(a, _mm_crc32_u32(b, c));  in hash_fn()
110             hash = _mm_crc32_u32(hash, unaligned_load<uint32_t>(data));  in hash_fn()
117             hash = _mm_crc32_u32(hash, unaligned_load<uint32_t>(data));  in hash_fn()
121             hash = _mm_crc32_u16(hash, unaligned_load<uint16_t>(data));  in hash_fn()
125             hash = _mm_crc32_u8(hash, unaligned_load<uint8_t>(data));  in hash_fn()
127         return hash;  in hash_fn()
131     /*not static*/ inline uint32_t hash_fn(const void* vdata, size_t bytes, uint32_t hash) {  in hash_fn()  argument
134             uint32_t a = hash,  in hash_fn()
135                      b = hash,  in hash_fn()
136                      c = hash;  in hash_fn()
145             hash = __crc32w(a, __crc32w(b, c));  in hash_fn()
150             hash = __crc32d(hash, unaligned_load<uint64_t>(data));  in hash_fn()
157             hash = __crc32d(hash, unaligned_load<uint64_t>(data));  in hash_fn()
161             hash = __crc32w(hash, unaligned_load<uint32_t>(data));  in hash_fn()
165             hash = __crc32h(hash, unaligned_load<uint16_t>(data));  in hash_fn()
169             hash = __crc32b(hash, unaligned_load<uint8_t>(data));  in hash_fn()
171         return hash;  in hash_fn()
176     /*not static*/ inline uint32_t hash_fn(const void* vdata, size_t bytes, uint32_t hash) {  in hash_fn()  argument
188             hash ^= k;  in hash_fn()
189             hash = (hash << 13) | (hash >> 19);  in hash_fn()
190             hash *= 5;  in hash_fn()
191             hash += 0xe6546b64;  in hash_fn()
206                     hash ^= k;  in hash_fn()
209         hash ^= original_bytes;  in hash_fn()
210         return SkChecksum::Mix(hash);  in hash_fn()