Implement missing features to run Hello world! on simulated ARM.

runtime/vm/flow_graph_compiler_arm.cc

 // Copyright (c) 2013, 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_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "lib/error.h"
@@ skipping 644 matching lines @@
   __ b(&null_args_loop_condition);
   __ Bind(&null_args_loop);
   __ str(IP, original_argument_addr);
   __ Bind(&null_args_loop_condition);
   __ subs(R8, R8, ShifterOperand(1));
   __ b(&null_args_loop, PL);
 }
 
 
 void FlowGraphCompiler::GenerateInlinedGetter(intptr_t offset) {
-  UNIMPLEMENTED();
+  // LR: return address.
+  // SP: receiver.
+  // Sequence node has one return node, its input is load field node.
+  __ ldr(R0, Address(SP, 0 * kWordSize));
+  __ LoadFromOffset(kLoadWord, R0, R0, offset - kHeapObjectTag);
+  __ Ret();
 }
 
 
 void FlowGraphCompiler::GenerateInlinedSetter(intptr_t offset) {
-  UNIMPLEMENTED();
+  // LR: return address.
+  // SP+1: receiver.
+  // SP+0: value.
+  // Sequence node has one store node and one return NULL node.
+  __ ldr(R0, Address(SP, 1 * kWordSize));  // Receiver.
+  __ ldr(R1, Address(SP, 0 * kWordSize));  // Value.
+  __ StoreIntoObject(R0, FieldAddress(R0, offset), R1);
+  __ LoadImmediate(R0, reinterpret_cast<intptr_t>(Object::null()));
+  __ Ret();
 }
 
 
 void FlowGraphCompiler::EmitFrameEntry() {
   const Function& function = parsed_function().function();
   if (CanOptimizeFunction() && function.is_optimizable()) {
     const bool can_optimize = !is_optimizing() || may_reoptimize();
     const Register function_reg = R6;
     if (can_optimize) {
       // The pool pointer is not setup before entering the Dart frame.
@@ skipping 413 matching lines @@
                                                           intptr_t index) {
   UNIMPLEMENTED();
   return FieldAddress(array, index);
 }
 
 
 FieldAddress FlowGraphCompiler::ElementAddressForRegIndex(intptr_t cid,
                                                           intptr_t index_scale,
                                                           Register array,
                                                           Register index) {
-  UNIMPLEMENTED();
+  UNREACHABLE();  // No register indexed with offset addressing mode on ARM.
   return FieldAddress(array, index);
 }
 
 
 Address FlowGraphCompiler::ExternalElementAddressForIntIndex(
     intptr_t index_scale,
     Register array,
     intptr_t index) {
   UNIMPLEMENTED();
   return FieldAddress(array, index);
@@ skipping 191 matching lines @@
 void ParallelMoveResolver::RestoreFpuScratch(FpuRegister reg) {
   __ vldrd(reg, Address(SP, kDoubleSize, Address::PostIndex));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM