1 /* { dg-do run } */
2 /* { dg-require-effective-target int32plus } */
3 /* { dg-options "-ftree-loop-distribution" } */
4
5 #define CAST_LONG unsigned int
6 typedef struct cast_key_st
7 {
8 CAST_LONG data[32];
9 } CAST_KEY;
10 #define CAST_exp(l,A,a,n) \
11 A[n/4]=l; \
12 a[n+3]=(l )&0xff; \
13 a[n+2]=(l>> 8)&0xff; \
14 a[n+1]=(l>>16)&0xff; \
15 a[n+0]=(l>>24)&0xff;
16
17 CAST_LONG CAST_S_table[1024];
18
19 #define S4 (CAST_S_table + 000)
20 #define S5 (CAST_S_table + 256)
21 #define S6 (CAST_S_table + 512)
22 #define S7 (CAST_S_table + 768)
23
24 void
CAST_set_key(CAST_KEY * key)25 CAST_set_key (CAST_KEY * key)
26 {
27 CAST_LONG x[16];
28 CAST_LONG z[16];
29 CAST_LONG k[32];
30 CAST_LONG X[4] = {0,0,0,0}, Z[4];
31 CAST_LONG l, *K = k;
32 int i;
33 for (i = 0; i < 16; i++)
34 x[i] = 0;
35 for (;;)
36 {
37 l = X[0] ^ S4[x[13]] ^ S5[x[15]] ^ S6[x[12]] ^ S7[x[14]] ^ S6[x[8]];
38 CAST_exp (l, Z, z, 0);
39 CAST_exp (l, Z, z, 4);
40 CAST_exp (l, Z, z, 8);
41 CAST_exp (l, Z, z, 12);
42 K[0] = S4[z[8]] ^ S5[z[9]] ^ S6[z[7]] ^ S7[z[6]] ^ S4[z[2]];
43 K[1] = S4[z[10]] ^ S5[z[11]] ^ S6[z[5]] ^ S7[z[4]] ^ S5[z[6]];
44 K[2] = S4[z[12]] ^ S5[z[13]] ^ S6[z[3]] ^ S7[z[2]] ^ S6[z[9]];
45 K[3] = S4[z[14]] ^ S5[z[15]] ^ S6[z[1]] ^ S7[z[0]] ^ S7[z[12]];
46 K[4] = S4[x[3]] ^ S5[x[2]] ^ S6[x[12]] ^ S7[x[13]] ^ S4[x[8]];
47 K[5] = S4[x[1]] ^ S5[x[0]] ^ S6[x[14]] ^ S7[x[15]] ^ S5[x[13]];
48 K[6] = S4[x[7]] ^ S5[x[6]] ^ S6[x[8]] ^ S7[x[9]] ^ S6[x[3]];
49 K[7] = S4[x[5]] ^ S5[x[4]] ^ S6[x[10]] ^ S7[x[11]] ^ S7[x[7]];
50 K[8] = S4[z[3]] ^ S5[z[2]] ^ S6[z[12]] ^ S7[z[13]] ^ S4[z[9]];
51 K[9] = S4[z[1]] ^ S5[z[0]] ^ S6[z[14]] ^ S7[z[15]] ^ S5[z[12]];
52 K[10] = S4[z[7]] ^ S5[z[6]] ^ S6[z[8]] ^ S7[z[9]] ^ S6[z[2]];
53 K[11] = S4[z[5]] ^ S5[z[4]] ^ S6[z[10]] ^ S7[z[11]] ^ S7[z[6]];
54 l = Z[2] ^ S4[z[5]] ^ S5[z[7]] ^ S6[z[4]] ^ S7[z[6]] ^ S6[z[0]];
55 CAST_exp (l, X, x, 0);
56 K[12] = S4[x[8]] ^ S5[x[9]] ^ S6[x[7]] ^ S7[x[6]] ^ S4[x[3]];
57 K[13] = S4[x[10]] ^ S5[x[11]] ^ S6[x[5]] ^ S7[x[4]] ^ S5[x[7]];
58 K[14] = S4[x[12]] ^ S5[x[13]] ^ S6[x[3]] ^ S7[x[2]] ^ S6[x[8]];
59 K[15] = S4[x[14]] ^ S5[x[15]] ^ S6[x[1]] ^ S7[x[0]] ^ S7[x[13]];
60 if (K != k)
61 break;
62 K += 16;
63 }
64 for (i = 0; i < 16; i++)
65 {
66 key->data[i * 2] = k[i];
67 key->data[i * 2 + 1] = ((k[i + 16]) + 16) & 0x1f;
68 }
69 }
70
71 int
main()72 main ()
73 {
74 CAST_KEY ref = { {0x0069B3F8, 0x00000013, 0x000AEFF8, 0x00000013, 0x004AD0E0, 0x0000001B, 0x00818F18, 0x00000018, 0x008FF000, 0x0000001B, 0x002D1C00, 0x0000001B, 0x00EA2800, 0x00000010, 0x00C73400, 0x00000010, 0x004BF8E0, 0x0000001B, 0x00B3D718, 0x00000018, 0x00B0EBF8, 0x00000013, 0x003247F8, 0x00000013, 0x00C5BA20, 0x00000010, 0x002D1C00, 0x00000010, 0x0060822B, 0x00000008, 0x0096236B, 0x0000001B} };
75 CAST_KEY key;
76 unsigned i;
77 for (i = 1; i < 1024; i++)
78 CAST_S_table[i] = (CAST_S_table[i-1] * 7 + 3) & 0xFFFFFF;
79 CAST_set_key (&key);
80 if (__builtin_memcmp(&ref, &key, sizeof(ref)))
81 __builtin_abort();
82 return 0;
83 }
84