Viewing file:  20071210-1.c (1.11 KB) -rw-r--r--
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/* PR rtl-optimization/34302 */
/* { dg-require-effective-target label_values } */
/* { dg-require-effective-target indirect_jumps } */
extern void abort (void);
struct S
{
int n1, n2, n3, n4;
};
__attribute__((noinline)) struct S
foo (int x, int y, int z)
{
if (x != 10 || y != 9 || z != 8)
abort ();
struct S s = { 1, 2, 3, 4 };
return s;
}
__attribute__((noinline)) void **
bar (void **u, int *v)
{
void **w = u;
int *s = v, x, y, z;
void **p, **q;
static void *l[] = { &&lab1, &&lab1, &&lab2, &&lab3, &&lab4 };
if (!u)
return l;
q = *w++;
goto *q;
lab2:
p = q;
q = *w++;
x = s[2];
y = s[1];
z = s[0];
s -= 1;
struct S r = foo (x, y, z);
s[3] = r.n1;
s[2] = r.n2;
s[1] = r.n3;
s[0] = r.n4;
goto *q;
lab3:
p = q;
q = *w++;
s += 1;
s[0] = 23;
lab1:
goto *q;
lab4:
return 0;
}
int
main (void)
{
void **u = bar ((void **) 0, (int *) 0);
void *t[] = { u[2], u[4] };
int s[] = { 7, 8, 9, 10, 11, 12 };
if (bar (t, &s[1]) != (void **) 0
|| s[0] != 4 || s[1] != 3 || s[2] != 2 || s[3] != 1
|| s[4] != 11 || s[5] != 12)
abort ();
return 0;
}
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