6.57.7 ARM ACLE Intrinsics
These built-in intrinsics for the ARMv8-A CRC32 extension are available when
the -march=armv8-a+crc switch is used:
6.57.7.1 CRC32 intrinsics
- uint32_t __crc32b (uint32_t, uint8_t)
Form of expected instruction(s): crc32b
r0,
r0,
r0
- uint32_t __crc32h (uint32_t, uint16_t)
Form of expected instruction(s): crc32h
r0,
r0,
r0
- uint32_t __crc32w (uint32_t, uint32_t)
Form of expected instruction(s): crc32w
r0,
r0,
r0
- uint32_t __crc32d (uint32_t, uint64_t)
Form of expected instruction(s): Two crc32w
r0,
r0,
r0
instructions for AArch32. One crc32w
w0,
w0,
x0 instruction for
AArch64.
- uint32_t __crc32cb (uint32_t, uint8_t)
Form of expected instruction(s): crc32cb
r0,
r0,
r0
- uint32_t __crc32ch (uint32_t, uint16_t)
Form of expected instruction(s): crc32ch
r0,
r0,
r0
- uint32_t __crc32cw (uint32_t, uint32_t)
Form of expected instruction(s): crc32cw
r0,
r0,
r0
- uint32_t __crc32cd (uint32_t, uint64_t)
Form of expected instruction(s): Two crc32cw
r0,
r0,
r0
instructions for AArch32. One crc32cw
w0,
w0,
x0 instruction for
AArch64.