In FlowGraphAllocator::ComputeInitialSets use post-order number when accessing kill and live-in set…

runtime/vm/flow_graph_allocator.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/flow_graph_allocator.h"
 
 #include "vm/bit_vector.h"
 #include "vm/intermediate_language.h"
 #include "vm/il_printer.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 128 matching lines @@
       }
     }
   }
 
   // Process incoming parameters.
   GraphEntryInstr* graph_entry = postorder_[block_count - 1]->AsGraphEntry();
   for (intptr_t i = 0; i < graph_entry->start_env()->values().length(); i++) {
     Value* val = graph_entry->start_env()->values()[i];
     if (val->IsUse()) {
       const intptr_t vreg = val->AsUse()->definition()->ssa_temp_index();
-      kill_[0]->Add(vreg);
-      live_in_[0]->Remove(vreg);
+      kill_[graph_entry->postorder_number()]->Add(vreg);
+      live_in_[graph_entry->postorder_number()]->Remove(vreg);
     }
   }
 
   // Update initial live_in sets to match live_out sets. Has to be
   // done in a separate path because of backwards branches.
   for (intptr_t i = 0; i < block_count; i++) {
     UpdateLiveIn(*postorder_[i]);
   }
 }
 
@@ skipping 1487 matching lines @@
 
   if (FLAG_trace_ssa_allocator) {
     OS::Print("-- ir after allocation -------------------------\n");
     FlowGraphPrinter printer(Function::Handle(), block_order_, true);
     printer.PrintBlocks();
   }
 }
 
 
 }  // namespace dart