Add Throw and ReThrow nodes. Rethrow not yet tested (bailout with untested), since it needs the try…

runtime/vm/flow_graph_compiler_x64.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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 571 matching lines @@
   const Class& cls = Class::Handle(function.signature_class());
   if (cls.HasTypeArguments()) {
     __ popq(RCX);  // Discard type arguments.
   }
   if (function.IsImplicitInstanceClosureFunction()) {
     __ popq(RCX);  // Discard receiver.
   }
 }
 
 
+void FlowGraphCompiler::VisitThrow(ThrowComp* comp) {
+  LoadValue(RAX, comp->exception());
+  __ pushq(RAX);
+  GenerateCallRuntime(comp->node_id(), comp->token_index(), kThrowRuntimeEntry);
+  __ int3();
+}
+
+
+void FlowGraphCompiler::VisitReThrow(ReThrowComp* comp) {
+  LoadValue(RBX, comp->stack_trace());
+  LoadValue(RAX, comp->exception());
+  __ pushq(RAX);
+  __ pushq(RBX);
+  GenerateCallRuntime(
+      comp->node_id(), comp->token_index(), kReThrowRuntimeEntry);
+  Bailout("ReThrow Untested");
+}
+
+
 void FlowGraphCompiler::VisitNativeLoadField(NativeLoadFieldComp* comp) {
   __ popq(RAX);
   __ movq(RAX, FieldAddress(RAX, comp->offset_in_bytes()));
 }
 
 
 void FlowGraphCompiler::VisitExtractTypeArguments(
     ExtractTypeArgumentsComp* comp) {
   __ popq(RAX);  // Instantiator.
   if (!comp->constructor().IsFactory()) {
@@ skipping 499 matching lines @@
 void FlowGraphCompiler::FinalizeExceptionHandlers(const Code& code) {
   // We don't compile exception handlers yet.
   code.set_exception_handlers(
       ExceptionHandlers::Handle(ExceptionHandlers::New(0)));
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64