37 lines
810 B
C
37 lines
810 B
C
/* { dg-do run { target { stdint_types } } } */
|
|
/* { dg-options "-O2" } */
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
void __attribute__ ((noinline))
|
|
foo (uint64_t state, uint32_t last)
|
|
{
|
|
if (state == last) abort ();
|
|
}
|
|
|
|
/* This function may do a bad comparision by trying to
|
|
use SUBREGS during the compare on machines where comparing
|
|
two registers always compares the entire register regardless
|
|
of mode. */
|
|
|
|
int __attribute__ ((noinline))
|
|
compare (uint64_t state, uint32_t *last, uint8_t buf)
|
|
{
|
|
if (*last == ((state | buf) & 0xFFFFFFFF)) {
|
|
foo (state, *last);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv) {
|
|
uint64_t state = 0xF00000100U;
|
|
uint32_t last = 0x101U;
|
|
int ret = compare(state, &last, 0x01);
|
|
if (ret != 0)
|
|
abort ();
|
|
exit (0);
|
|
}
|