CRC Checksum Algorithm
SSE4.2 and ARM v8 provide their own CRC instructions.
- x86 platform (src/port/pg_crc32c_sse42.c)
include <nmmintrin.h> Use _mm_crc32_u8/16/32/64
- AArch64 platform (src/port/pg_crc32c_armv8.c)
include <arm_acle.h> Use __crc32cb/cw/cd/ch
Parent topic: PostgreSQL