Initial SIMDBC interpreter.

runtime/vm/intrinsifier.cc

Index: runtime/vm/intrinsifier.cc
diff --git a/runtime/vm/intrinsifier.cc b/runtime/vm/intrinsifier.cc
index af15e7a7f2a81df0e199b6cf7518a5bc31da34a0..97eeb67af07bdb739d6773b2eee8ad66e86bf9be 100644
--- a/runtime/vm/intrinsifier.cc
+++ b/runtime/vm/intrinsifier.cc
@@ -95,6 +95,7 @@ void Intrinsifier::InitializeState() {
 #endif  // defined(DART_NO_SNAPSHOT).
 
 
+#if !defined(TARGET_ARCH_DBC)
 static void EmitCodeFor(FlowGraphCompiler* compiler,
                         FlowGraph* graph) {
   // The FlowGraph here is constructed by the intrinsics builder methods, and
@@ -124,10 +125,14 @@ static void EmitCodeFor(FlowGraphCompiler* compiler,
     }
   }
 }
+#endif
 
 
 bool Intrinsifier::GraphIntrinsify(const ParsedFunction& parsed_function,
                                    FlowGraphCompiler* compiler) {
+#if defined(TARGET_ARCH_DBC)
+  return false;
+#else
   ZoneGrowableArray<const ICData*>* ic_data_array =
       new ZoneGrowableArray<const ICData*>();
   FlowGraphBuilder builder(parsed_function,
@@ -174,6 +179,7 @@ bool Intrinsifier::GraphIntrinsify(const ParsedFunction& parsed_function,
   }
   EmitCodeFor(compiler, graph);
   return true;
+#endif
 }
 
 
@@ -205,10 +211,20 @@ void Intrinsifier::Intrinsify(const ParsedFunction& parsed_function,
     default:
       break;
   }
+
+#if defined(TARGET_ARCH_DBC)
+  switch (function.recognized_kind()) {
+    GRAPH_INTRINSICS_LIST(EMIT_CASE)
+    default:
+      break;
+  }
+#endif
+
 #undef EMIT_INTRINSIC
 }
 
 
+#if !defined(TARGET_ARCH_DBC)
 static intptr_t CidForRepresentation(Representation rep) {
   switch (rep) {
     case kUnboxedDouble:
@@ -882,5 +898,6 @@ bool Intrinsifier::Build_DoubleFlipSignBit(FlowGraph* flow_graph) {
   builder.AddIntrinsicReturn(new Value(result));
   return true;
 }
+#endif
 
 }  // namespace dart