http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56826
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-04
11:12:56 UTC ---
Testcase:
extern void abort (void);
typedef struct {
int a[3];
int num;
} t1;
t1 B[100];
int A[300];
void __attribute__((noinline,noclone))
bar (int *A, t1 *B, int n)
{
int i;
int *a = A;
for (i=0; i<n; i++, a+=3)
{
a[0] = B[i].a[0];
a[1] = B[i].a[1];
a[2] = B[i].a[2];
}
}
int main()
{
int i;
for (i=0; i<100; i++)
{
B[i].num = i;
B[i].a[0] = i * 3;
B[i].a[1] = i * 3 + 1;
B[i].a[2] = i * 3 + 2;
__asm__ volatile ("");
}
bar (&A[0], &B[0], 100);
for (i=0; i<300; i++)
if (A[i] != i)
abort ();
return 0;
}
