Ensure that we never try to split range at its end position.

runtime/vm/il_printer.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/il_printer.h"
 
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 
 namespace dart {
@@ skipping 362 matching lines @@
 
 void JoinEntryInstr::PrintTo(BufferFormatter* f) const {
   f->Print("%2d: [join]", block_id());
   if (phis_ != NULL) {
     for (intptr_t i = 0; i < phis_->length(); ++i) {
       if ((*phis_)[i] == NULL) continue;
       f->Print("\n");
       (*phis_)[i]->PrintTo(f);
     }
   }
+  if (HasParallelMove()) {
+    f->Print("\n");
+    parallel_move()->PrintTo(f);
+  }
 }
 
 
 void PhiInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    v%d <- phi(", ssa_temp_index());
   for (intptr_t i = 0; i < inputs_.length(); ++i) {
     if (inputs_[i] != NULL) inputs_[i]->PrintTo(f);
     if (i < inputs_.length() - 1) f->Print(", ");
   }
   f->Print(")");
 }
 
 
 void ParameterInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    v%d <- parameter(%d)",
            HasSSATemp() ? ssa_temp_index() : temp_index(),
            index());
 }
 
 
 void TargetEntryInstr::PrintTo(BufferFormatter* f) const {
   f->Print("%2d: [target", block_id());
   if (HasTryIndex()) {
     f->Print(" catch %d]", try_index());
   } else {
     f->Print("]");
   }
+  if (HasParallelMove()) {
+    f->Print("\n");
+    parallel_move()->PrintTo(f);
+  }
 }
 
 
 void BindInstr::PrintTo(BufferFormatter* f) const {
   if (!is_used()) {
     f->Print("    ");
   } else if (HasSSATemp()) {
     f->Print("    v%d <- ", ssa_temp_index());
   } else {
     f->Print("    t%d <- ", temp_index());
@@ skipping 22 matching lines @@
 
 void ReThrowInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    %s ", DebugName());
   exception()->PrintTo(f);
   f->Print(", ");
   stack_trace()->PrintTo(f);
 }
 
 
 void GotoInstr::PrintTo(BufferFormatter* f) const {
-  f->Print("    goto %d", successor()->block_id());
+  if (HasParallelMove()) {
+    parallel_move()->PrintTo(f);
+  } else {
+    f->Print("    ");
+  }
+  f->Print(" goto %d", successor()->block_id());
 }
 
 
 void BranchInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    %s ", DebugName());
   f->Print("if ");
   left()->PrintTo(f);
   f-> Print(" %s ", Token::Str(kind()));
   right()->PrintTo(f);
 
@@ skipping 279 matching lines @@
     if ((i < locations_.length()) && !locations_[i].IsInvalid()) {
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
 }
 
 }  // namespace dart