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/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
/* { dg-options "-O2 -fselective-scheduling -fsel-sched-pipelining -fsched-pressure" } */
struct s_linked_f_pointer
{
struct s_linked_f_pointer *next;
float *fptr;
};
struct s_trace
{
int index;
};
struct s_rr_cost
{
float base_cost;
float acc_cost;
};
extern int num_nets;
extern struct s_trace **trace_head;
extern struct s_rr_cost *rr_cost;
struct s_rr_route
{
float cost;
};
static int heap_tail;
extern struct s_linked_f_pointer *rr_modified_head;
extern struct s_rr_route *rr_route;
void
empty_heap (void)
{
heap_tail = 1;
}
void
reset_path_costs (void)
{
struct s_linked_f_pointer *mod_ptr;
if (rr_modified_head != ((void *) 0))
{
mod_ptr = rr_modified_head;
while (mod_ptr->next != ((void *) 0))
{
*(mod_ptr->fptr) = 1.e30;
mod_ptr = mod_ptr->next;
}
rr_modified_head = ((void *) 0);
}
}
static void
route_net (int inet)
{
int i;
for (i = 1; i < inet; i++)
reset_path_costs ();
empty_heap ();
reset_path_costs ();
}
void
pathfinder_update_one_cost (int inet, float pres_fac, float acc_fac)
{
struct s_trace *tptr;
int inode = 0;
tptr = trace_head[inet];
inode = tptr->index;
rr_route[inode].cost = rr_cost[inode].base_cost + rr_cost[inode].acc_cost;
}
int
try_route (int n, float x, float y)
{
int inet, itry;
float pres_fac;
for (itry = 1; itry <= n; itry++)
{
for (inet = 0; inet < num_nets; inet++)
{
route_net (inet);
pathfinder_update_one_cost (inet, pres_fac, x);
}
pres_fac *= y;
}
}
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