/* { dg-do run } */ /* { dg-options "-O2 -fomit-frame-pointer" } */ extern void abort (void); extern void exit (int); unsigned char a[256], b[256], c[256], d[256]; void foo(unsigned char *x, int y, unsigned char *z) { } void bar(int x, ...) { } void baz(int y) { if (y != 0x10) abort(); } void test(int x, unsigned char *y) { unsigned char g,h,j, k[5],l[5], m[30]; int i; bar(x, y[0], y[1], y[2], y[3], y[4], y[5], y[6], y[7], y[8], y[9]); for (i = 5; --i >= 0; ) k[i] = y[5 + i] ^ a[i] ^ c[i]; foo(&m[29], sizeof m, k); g = d[x] ^ c[x]; bar(x, d[x], x, c[x]); baz(g); for (i = 5, h = 0; --i >= 0; h = y[i]) { j = m[25 + i] ^ y[i]; j = b[j] ^ g; k[i] = c[j] ^ h; } for (i = 5, h = 0; --i >= 0; h = k[i]) { j = m[20 + i] ^ k[i]; j = b[j] ^ g; l[i] = c[j] ^ h; } for (i = 5, h = 0; --i >= 0; h = l[i]) { j = m[15 + i] ^ l[i]; j = b[j] ^ g; j = c[j] ^ h; k[i] = a[j] ^ c[j]; } } int main() { c[4] = 0xdc; d[4] = 0xcc; test(4, a); exit(0); }