Viewing file:  pr42640.c (1.08 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -ftree-loop-distribution" } */
/* Checks if loop distribution works correctly if the subscript used
is assigned to a loop invariant value. */
extern void abort (void);
struct S { int a; int b; int c; };
int get_rr_node_index (int i)
{
return i;
}
struct S nodes[8];
struct S *rr_node = nodes;
volatile int io_rat = 2;
void
doit (int i, int j)
{
int s_node, p_node, inode, ipad, iloop;
for (ipad = 0; ipad < io_rat; ipad++)
{
p_node = get_rr_node_index (ipad+2);
inode = get_rr_node_index (ipad);
for (iloop = 1; iloop <= 2; iloop++)
{
rr_node[inode].a = i;
rr_node[inode].b = j;
rr_node[inode].c = ipad;
inode = p_node;
}
}
}
int
main ()
{
int i;
doit (1, 2);
if (rr_node[0].a != rr_node[1].a
|| rr_node[2].a != rr_node[3].a
|| rr_node[1].a != 1
|| rr_node[0].b != rr_node[1].b
|| rr_node[2].b != rr_node[3].b
|| rr_node[1].b != 2
|| rr_node[0].c != 0
|| rr_node[1].c != 1
|| rr_node[2].c != 0
|| rr_node[3].c != 1)
abort ();
return 0;
}
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