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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-crc" } */
#include <stdint.h>
//in one case is called shift left, in another shift right
uint16_t not_crc(uint16_t crc, uint8_t a) {
int i;
crc ^= a;
for (i = 0; i < 8; ++i) {
if (crc & 1)
crc = (crc << 1) ^ 0xA001;
else
crc = crc >> 1;
}
return crc;
}
/* { dg-final { scan-tree-dump-times "Attention! not_crc function calculates CRC." 0 "crc"} } */
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