Implement '==', '!=' and instanceof (without code generation).

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 257 matching lines @@
   __ popq(RBX);  // Reciever.
   __ pushq(RAX);
   __ pushq(RBX);
   __ pushq(RAX);
   EmitInstanceCall(comp->node_id(), comp->token_index(), function_name, 2,
                    Array::ZoneHandle(), 1);
   __ popq(RAX);
 }
 
 
+void FlowGraphCompiler::VisitBooleanNegate(BooleanNegateComp* comp) {
+  const Bool& bool_true = Bool::ZoneHandle(Bool::True());
+  const Bool& bool_false = Bool::ZoneHandle(Bool::False());
+  Label done;
+  __ popq(RDX);

[Kevin Millikin (Google), 2012/03/07 10:22:38]

We can't assume comp->value() is on the stack.  Here's where we need LoadValue
to take a register argument:

LoadValue(RDX, comp->value());
__ LoadObject(RAX, bool_true);
... etc.

[srdjan, 2012/03/07 21:00:51]

Fixed, added tests, also create BooleanNegateComp in VisitUnaryOpNode.

+  __ LoadObject(RAX, bool_true);
+  __ cmpq(RAX, RDX);
+  __ j(NOT_EQUAL, &done, Assembler::kNearJump);
+  __ LoadObject(RAX, bool_false);
+  __ Bind(&done);
+}
+
+
+void FlowGraphCompiler::VisitInstanceOf(InstanceOfComp* comp) {
+  Bailout("InstanceOf");
+}
+
+
 void FlowGraphCompiler::VisitJoinEntry(JoinEntryInstr* instr) {
   Bailout("JoinEntryInstr");
 }
 
 
 void FlowGraphCompiler::VisitTargetEntry(TargetEntryInstr* instr) {
   // Since we don't handle branching control flow yet, there is nothing to do.
 }
 
 
@@ skipping 193 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