| /* { dg-do compile } */ | |
| /* { dg-options "-fdump-tree-crc -O2" } */ | |
| #include <stdint.h> | |
| uint8_t not_crc(uint8_t crc, uint8_t data) { | |
| uint8_t i; | |
| crc = crc ^ data; | |
| for (i = 0; i < 8; i++) { | |
| if (!i && (crc & 0x01)) | |
| crc = (crc >> 1) ^ 0x8C; | |
| else | |
| crc >>= 1; | |
| } | |
| return crc; | |
| } | |
| /* { dg-final { scan-tree-dump-times "calculates CRC!" 0 "crc" } } */ |