/* PR rtl-optimization/89634 */ | |
static unsigned long * | |
foo (unsigned long *x) | |
{ | |
return x + (1 + *x); | |
} | |
__attribute__((noipa)) unsigned long | |
bar (unsigned long *x) | |
{ | |
unsigned long c, d = 1, e, *f, g, h = 0, i; | |
for (e = *x - 1; e > 0; e--) | |
{ | |
f = foo (x + 1); | |
for (i = 1; i < e; i++) | |
f = foo (f); | |
c = *f; | |
if (c == 2) | |
d *= 2; | |
else | |
{ | |
i = (c - 1) / 2 - 1; | |
g = (2 * i + 1) * (d + 1) + (2 * d + 1); | |
if (g > h) | |
h = g; | |
d *= c; | |
} | |
} | |
return h; | |
} | |
int | |
main () | |
{ | |
unsigned long a[18] = { 4, 2, -200, 200, 2, -400, 400, 3, -600, 0, 600, 5, -100, -66, 0, 66, 100, __LONG_MAX__ / 8 + 1 }; | |
if (bar (a) != 17) | |
__builtin_abort (); | |
return 0; | |
} |