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/* PR debug/65779 */
/* { dg-do assemble } */
/* { dg-options "-O2 -fcompare-debug" } */
unsigned long
foo (unsigned long x, unsigned char *y, unsigned int z)
{
unsigned long a = x & 0xffff;
unsigned long b = (x >> 16) & 0xffff;
int k;
if (y == 0) return 1L;
while (z > 0)
{
k = z < 5552 ? z : 5552;
z -= k;
while (k >= 16)
{
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
a += *y++; b += a;
k -= 16;
}
if (k != 0)
do { a += *y++; b += a; } while (--k);
a %= 65521L;
b %= 65521L;
}
return (b << 16) | a;
}
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