Fix a bug in SSA renaming.

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 69 matching lines @@
 void Computation::PrintOperandsTo(BufferFormatter* f) const {
   for (int i = 0; i < InputCount(); ++i) {
     if (i > 0) f->Print(", ");
     if (InputAt(i) != NULL) InputAt(i)->PrintTo(f);
   }
 }
 
 
 void UseVal::PrintTo(BufferFormatter* f) const {
   if (definition()->ssa_temp_index() != -1) {
-    f->Print("t%d", definition()->ssa_temp_index());
+    f->Print("v%d", definition()->ssa_temp_index());
   } else {
     f->Print("t%d", definition()->temp_index());
   }
 }
 
 
 void ConstantVal::PrintTo(BufferFormatter* f) const {
   f->Print("#%s", value().ToCString());
 }
 
@@ skipping 250 matching lines @@
     for (intptr_t i = 0; i < phis_->length(); ++i) {
       if ((*phis_)[i] == NULL) continue;
       f->Print("\n");
       (*phis_)[i]->PrintTo(f);
     }
   }
 }
 
 
 void PhiInstr::PrintTo(BufferFormatter* f) const {
-  f->Print("    t%d <- phi(", ssa_temp_index());
+  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 TargetEntryInstr::PrintTo(BufferFormatter* f) const {
   f->Print("%2d: [target", block_id());
   if (HasTryIndex()) {
     f->Print(" catch %d]", try_index());
   } else {
     f->Print("]");
   }
 }
 
 
 void DoInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    ");
   computation()->PrintTo(f);
 }
 
 
 void BindInstr::PrintTo(BufferFormatter* f) const {
   if (ssa_temp_index() != -1) {
-    f->Print("    t%d <- ", ssa_temp_index());
+    f->Print("    v%d <- ", ssa_temp_index());
   } else {
     f->Print("    t%d <- ", temp_index());
   }
   computation()->PrintTo(f);
 }
 
 
 void ReturnInstr::PrintTo(BufferFormatter* f) const {
   f->Print("    %s ", DebugName());
   value()->PrintTo(f);
@@ skipping 164 matching lines @@
   f->Print("_ [graph]");
 }
 
 
 void JoinEntryInstr::PrintToVisualizer(BufferFormatter* f) const {
   f->Print("_ [join]");
 }
 
 
 void PhiInstr::PrintToVisualizer(BufferFormatter* f) const {
-  f->Print("t%d [", ssa_temp_index());
+  f->Print("v%d [", ssa_temp_index());
   bool has_constant = false;
   for (intptr_t i = 0; i < InputCount(); ++i) {
     if (i > 0) f->Print(" ");
     if (InputAt(i)->IsConstant()) {
       f->Print("const");
       has_constant = true;
     } else {
       InputAt(i)->PrintTo(f);
     }
   }
@@ skipping 24 matching lines @@
 
 
 void DoInstr::PrintToVisualizer(BufferFormatter* f) const {
   f->Print("_ ");
   computation()->PrintTo(f);
 }
 
 
 void BindInstr::PrintToVisualizer(BufferFormatter* f) const {
   if (ssa_temp_index() != -1) {
-    f->Print("t%d ", ssa_temp_index());
+    f->Print("v%d ", ssa_temp_index());
   } else {
     f->Print("t%d ", temp_index());
   }
   computation()->PrintTo(f);
 }
 
 
 void ReturnInstr::PrintToVisualizer(BufferFormatter* f) const {
   f->Print("_ %s ", DebugName());
   value()->PrintTo(f);
@@ skipping 18 matching lines @@
   f->Print("_ %s ", DebugName());
   f->Print("if ");
   value()->PrintTo(f);
   f->Print(" goto (B%d, B%d)",
             true_successor()->block_id(),
             false_successor()->block_id());
 }
 
 
 }  // namespace dart