Support for multiple register values

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"
 #include "vm/parser.h"
 
@@ skipping 152 matching lines @@
   char buffer[1024];
   BufferFormatter f(buffer, sizeof(buffer));
   PrintICDataHelper(&f, ic_data);
   OS::Print("%s\n", buffer);
 }
 
 
 static void PrintUse(BufferFormatter* f, const Definition& definition) {
   if (definition.is_used()) {
     if (definition.HasSSATemp()) {
-      f->Print("v%" Pd, definition.ssa_temp_index());
+      if (definition.HasPairRepresentation()) {
+        f->Print("v%" Pd ", v%" Pd "", definition.ssa_temp_index(),
+                                       definition.ssa_temp_index() + 1);
+      } else {
+        f->Print("v%" Pd "", definition.ssa_temp_index());
+      }
     } else if (definition.temp_index() != -1) {
-      f->Print("t%" Pd, definition.temp_index());
+      f->Print("t%" Pd "", definition.temp_index());
     }
   }
 }
 
 
 const char* Instruction::ToCString() const {
   char buffer[1024];
   BufferFormatter f(buffer, sizeof(buffer));
   PrintTo(&f);
   return Isolate::Current()->current_zone()->MakeCopyOfString(buffer);
@@ skipping 39 matching lines @@
   if (type_ != NULL) {
     f->Print(" ");
     type_->PrintTo(f);
   }
 }
 
 
 void Definition::PrintOperandsTo(BufferFormatter* f) const {
   for (int i = 0; i < InputCount(); ++i) {
     if (i > 0) f->Print(", ");
-    if (InputAt(i) != NULL) InputAt(i)->PrintTo(f);
+    if (InputAt(i) != NULL) {
+      InputAt(i)->PrintTo(f);
+    }
   }
 }
 
 
 void Value::PrintTo(BufferFormatter* f) const {
   PrintUse(f, *definition());
   if ((reaching_type_ != NULL) &&
       (reaching_type_ != definition()->type_)) {
     f->Print(" ");
     reaching_type_->PrintTo(f);
@@ skipping 320 matching lines @@
   value()->PrintTo(f);
 }
 
 
 void MergedMathInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("'%s', ", MergedMathInstr::KindToCString(kind()));
   Definition::PrintOperandsTo(f);
 }
 
 
+void ExtractNthOutputInstr::PrintOperandsTo(BufferFormatter* f) const {
+  f->Print("Extract %" Pd " from ", index());
+  Definition::PrintOperandsTo(f);
+}
+
+
 void BinarySmiOpInstr::PrintTo(BufferFormatter* f) const {
   Definition::PrintTo(f);
   f->Print(" %co", overflow_ ? '+' : '-');
   f->Print(" %ct", is_truncating() ? '+' : '-');
 }
 
 
 void BinarySmiOpInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s, ", Token::Str(op_kind()));
   left()->PrintTo(f);
@@ skipping 452 matching lines @@
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
   if (outer_ != NULL) outer_->PrintTo(f);
 }
 
 }  // namespace dart