Support loads from Uint8Array and ExternalUint8Array in the optimizing compiler.

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 "lib/error.h"
 #include "vm/ast_printer.h"
 #include "vm/il_printer.h"
 #include "vm/locations.h"
 #include "vm/object_store.h"
 #include "vm/parser.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, print_ast);
 DECLARE_FLAG(bool, print_scopes);
 DECLARE_FLAG(bool, use_sse41);
 DEFINE_FLAG(bool, trap_on_deoptimization, false, "Trap on deoptimization.");
 
 
-FieldAddress FlowGraphCompiler::ElementAddressForRegIndex(intptr_t cid,
-                                                          Register array,
-                                                          Register index) {
-  // Note that index is Smi, i.e, times 2.
-  ASSERT(kSmiTagShift == 1);
-  switch (cid) {
-    case kArrayCid:
-    case kImmutableArrayCid:
-      return FieldAddress(array, index, TIMES_4, sizeof(RawArray));
-    case kFloat32ArrayCid:
-      return FieldAddress(array, index, TIMES_2, Float32Array::data_offset());
-    case kFloat64ArrayCid:
-      return FieldAddress(array, index, TIMES_4, Float64Array::data_offset());
-    default:
-      UNIMPLEMENTED();
-      return FieldAddress(SPREG, 0);
-  }
-}
-
-
 bool FlowGraphCompiler::SupportsUnboxedMints() {
   return false;
 }
 
 
 void CompilerDeoptInfoWithStub::GenerateCode(FlowGraphCompiler* compiler,
                                              intptr_t stub_ix) {
   // Calls do not need stubs, they share a deoptimization trampoline.
   ASSERT(reason() != kDeoptAtCall);
   Assembler* assem = compiler->assembler();
@@ skipping 1306 matching lines @@
 void ParallelMoveResolver::Exchange(const Address& mem1, const Address& mem2) {
   __ Exchange(mem1, mem2);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64