Viewing file:  pr13721.c (1.77 KB) -rw-r--r--
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static __inline__ __attribute__((always_inline)) void set_bit(int nr, volatile void * addr)
{
volatile unsigned char *b_addr;
b_addr = (volatile unsigned char *)addr + ((nr >> 3) ^ 3);
nr &= 7;
if (__builtin_constant_p (nr))
{
switch(nr)
{
case 0:
__asm__("bset #0,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 1:
__asm__("bset #1,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 2:
__asm__("bset #2,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 3:
__asm__("bset #3,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 4:
__asm__("bset #4,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 5:
__asm__("bset #5,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 6:
__asm__("bset #6,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
case 7:
__asm__("bset #7,%0" :"+m"(*b_addr) :"m"(*b_addr));
break;
}
}
else
{
__asm__("bset %w1,%0" :"+m"(*b_addr) :"g"(nr),"m"(*b_addr)); /* { dg-error "invalid 'asm'" "" } */
}
}
static __inline__ __attribute__((always_inline)) int test_bit(int nr, const volatile void * addr)
{
return (*((volatile unsigned char *)addr + ((nr >> 3) ^ 3)) & (1UL << (nr & 7))) != 0;
}
struct a {
unsigned long a;
};
void dummy(struct a *a, int b);
int ice_func(struct a *a, int b)
{
int c,d;
unsigned int e;
for(c=0;c<b;c++) {
for(d=b; d <= b; d++) {
if (!test_bit(d, &e)) {
dummy(a, d * a->a);
dummy(a, d * a->a);
set_bit(d, &e);
}
}
dummy(a, d * a->a);
}
return 0;
}
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