Implement inlined LoadIndexed operation for arrays on x64.

runtime/vm/intermediate_language_ia32.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_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 248 matching lines @@
   __ movl(ECX, Immediate(reinterpret_cast<uword>(native_c_function())));
   __ movl(EDX, Immediate(argument_count()));
   compiler->GenerateCall(token_index(),
                          try_index(),
                          &StubCode::CallNativeCFunctionLabel(),
                          PcDescriptors::kOther);
   __ popl(result);
 }
 
 
+LocationSummary* LoadIndexedComp::MakeLocationSummary() const {
+  return MakeCallSummary();
+}
+
+
+void LoadIndexedComp::EmitNativeCode(FlowGraphCompiler* compiler) {
+  const String& function_name =
+      String::ZoneHandle(String::NewSymbol(Token::Str(Token::kINDEX)));
+
+  const intptr_t kNumArguments = 2;
+  const intptr_t kNumArgsChecked = 1;  // Type-feedback.
+  compiler->GenerateInstanceCall(cid(),
+                                 token_index(),
+                                 try_index(),
+                                 function_name,
+                                 kNumArguments,
+                                 Array::ZoneHandle(),  // No optional arguments.
+                                 kNumArgsChecked);
+}
+
+
 LocationSummary* StoreIndexedComp::MakeLocationSummary() const {
   const intptr_t kNumInputs = 3;
   return LocationSummary::Make(kNumInputs, Location::NoLocation());
 }
 
 
 void StoreIndexedComp::EmitNativeCode(FlowGraphCompiler* compiler) {
   Register receiver = locs()->in(0).reg();
   Register index = locs()->in(1).reg();
   Register value = locs()->in(2).reg();
@@ skipping 607 matching lines @@
     UNREACHABLE();
   }
 }
 
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64