Avoid memory overrun/underrun in reserve_locally_used_opins.

Signed-off-by: Keith Rothman <[email protected]>

Author: litghost

vpr/src/base/read_route.cpp

@@ -109,6 +109,8 @@ bool read_route(const char* route_file, const t_router_opts& router_opts, bool v
     fp.close();
 
     /*Correctly set up the clb opins*/
+    reserve_locally_used_opins(router_opts.initial_pres_fac,
+                               router_opts.acc_fac, false);
     recompute_occupancy_from_scratch();
 
     /* Note: This pres_fac is not necessarily correct since it isn't the first routing iteration*/

vpr/src/route/check_route.cpp

@@ -560,6 +560,7 @@ void recompute_occupancy_from_scratch() {
             /* Will always be 0 for pads or SINK classes. */
             for (ipin = 0; ipin < num_local_opins; ipin++) {
                 inode = route_ctx.clb_opins_used_locally[blk_id][iclass][ipin];
+                VTR_ASSERT(inode >= 0 && inode < (ssize_t)device_ctx.rr_nodes.size());
                 route_ctx.rr_node_route_inf[inode].set_occ(route_ctx.rr_node_route_inf[inode].occ() + 1);
             }
         }

vpr/src/route/route_common.cpp

@@ -1646,6 +1646,7 @@ void reserve_locally_used_opins(float pres_fac, float acc_fac, bool rip_up_local
                 /* Always 0 for pads and for RECEIVER (IPIN) classes */
                 for (ipin = 0; ipin < num_local_opin; ipin++) {
                     inode = route_ctx.clb_opins_used_locally[blk_id][iclass][ipin];
+                    VTR_ASSERT(inode >= 0 && inode < (ssize_t)device_ctx.rr_nodes.size());
                     adjust_one_rr_occ_and_apcost(inode, -1, pres_fac, acc_fac);
                 }
             }