Allow smi comparisons to have constant operands.

runtime/vm/intermediate_language.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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_allocator.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 1288 matching lines @@
     case ABOVE:         return BELOW_EQUAL;
     case ABOVE_EQUAL:   return BELOW;
     default:
       OS::Print("Error %d\n", condition);
       UNIMPLEMENTED();
       return EQUAL;
   }
 }
 
 
+void ControlInstruction::EmitBranchOnValue(FlowGraphCompiler* compiler,
+                                           bool value) {
+  if (value && compiler->IsNextBlock(false_successor())) {
+    __ jmp(compiler->GetBlockLabel(true_successor()));
+  } else if (!value && compiler->IsNextBlock(true_successor())) {
+    __ jmp(compiler->GetBlockLabel(false_successor()));
+  }
+}
+
+
 void ControlInstruction::EmitBranchOnCondition(FlowGraphCompiler* compiler,
                                                Condition true_condition) {
   if (compiler->IsNextBlock(false_successor())) {
     // If the next block is the false successor we will fall through to it.
     __ j(true_condition, compiler->GetBlockLabel(true_successor()));
   } else {
     // If the next block is the true successor we negate comparison and fall
     // through to it.
     ASSERT(compiler->IsNextBlock(true_successor()));
     Condition false_condition = NegateCondition(true_condition);
@@ skipping 278 matching lines @@
     value->set_use_index(i);
     value->AddToEnvUseList();
   }
   instr->set_env(copy);
 }
 
 
 #undef __
 
 }  // namespace dart