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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [unsorted/] [udivmod4.c] - Blame information for rev 826

Line No.	Rev	Author	Line
1	297	jeremybenn	`long long`
2			`xlrandom ()`
3			`{`
4			`long long x;`
5			`unsigned a;`
6			`int bits = 64;`
7			`unsigned b;`
8
9			`do`
10			`{`
11			`a = random ();`
12			`b = (a & 15) + 1;`
13			`x <<= b; /* shift up 1-16 steps */`
14			`a = (a >> 18) & 1;`
15			`if (a)`
16			`x \|= (unsigned) (1 << b) - 1;`
17			`bits -= b;`
18			`}`
19			`while (bits >= 0);`
20			`return x;`
21			`}`
22
23
24			`unsigned long long __udivmoddi4();`
25
26			`main ()`
27			`{`
28			`int i;`
29			`unsigned long long n, d, q, r, rr;`
30
31			`for (i = 0; ;i++)`
32			`{`
33			`n = xlrandom ();`
34			`d = xlrandom ();`
35			`if (d == 0)`
36			`continue;`
37
38			`q = __udivmoddi4 (n, d, &r);`
39
40			`if (i % 1000000 == 0)`
41			`printf ("Testing udivmoddi4: %d iterations made\n", i);`
42
43			`rr = n - q * d;`
44			`if (rr != r \|\| r >= d)`
45			`{`
46			`printf ("Testing udivmoddi4: failure after %d iterations\n", i);`
47			`printf ("n=%lX%08lX\n", (unsigned) (n >> 32), (unsigned) n);`
48			`printf ("d=%lX%08lX\n", (unsigned) (d >> 32), (unsigned) d);`
49			`printf ("q=%lX%08lX\n", (unsigned) (q >> 32), (unsigned) q);`
50			`printf ("r=%lX%08lX\n", (unsigned) (r >> 32), (unsigned) r);`
51			`printf ("rr=%lX%08lX\n", (unsigned) (rr >> 32), (unsigned) rr);`
52			`abort ();`
53			`}`
54			`}`
55
56			`}`