Viewing file:  pr15296.c (1.47 KB) -rw-r--r--
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/* PR optimization/15296. The delayed-branch scheduler caused code that
SEGV:d for CRIS; a register was set to -1 in a delay-slot for the
fall-through code, while that register held a pointer used in code at
the branch target. */
typedef __INTPTR_TYPE__ intptr_t;
typedef intptr_t W;
union u0
{
union u0 *r;
W i;
};
struct s1
{
union u0 **m0;
union u0 m1[4];
};
void f (void *, struct s1 *, const union u0 *, W, W, W)
__attribute__ ((__noinline__));
void g (void *, char *) __attribute__ ((__noinline__));
void
f (void *a, struct s1 *b, const union u0 *h, W v0, W v1, W v4)
{
union u0 *e = 0;
union u0 *k = 0;
union u0 **v5 = b->m0;
union u0 *c = b->m1;
union u0 **d = &v5[0];
l0:;
if (v0 < v1)
goto l0;
if (v0 == 0)
goto l3;
v0 = v4;
if (v0 != 0)
goto l3;
c[0].r = *d;
v1 = -1;
e = c[0].r;
if (e != 0)
g (a, "");
k = e + 3;
k->i = v1;
goto l4;
l3:;
c[0].i = v0;
e = c[1].r;
if (e != 0)
g (a, "");
e = c[0].r;
if (e == 0)
g (a, "");
k = e + 2;
k->r = c[1].r;
l4:;
}
void g (void *a, char *b) { abort (); }
int
main ()
{
union u0 uv[] = {{ .i = 111 }, { .i = 222 }, { .i = 333 }, { .i = 444 }};
struct s1 s = { 0, {{ .i = 555 }, { .i = 0 }, { .i = 999 }, { .i = 777 }}};
f (0, &s, 0, 20000, 10000, (W) uv);
if (s.m1[0].i != (W) uv || s.m1[1].i != 0 || s.m1[2].i != 999
|| s.m1[3].i != 777 || uv[0].i != 111 || uv[1].i != 222
|| uv[2].i != 0 || uv[3].i != 444)
abort ();
exit (0);
}
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