Second codegen test passing on ARM (simulated).

runtime/vm/assembler_arm.h

 // 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.
 
 #ifndef VM_ASSEMBLER_ARM_H_
 #define VM_ASSEMBLER_ARM_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_arm.h directly; use assembler.h instead.
 #endif
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/constants_arm.h"
 
 namespace dart {
 
+// Forward declarations.
+class RuntimeEntry;
+
 class Label : public ValueObject {
  public:
   Label() : position_(0) { }
 
   ~Label() {
     // Assert if label is being destroyed with unresolved branches pending.
     ASSERT(!IsLinked());
   }
 
   // Returns the position for bound and linked labels. Cannot be used
@@ skipping 488 matching lines @@
 
   // Compare rn with signed immediate value. May clobber IP.
   void CompareImmediate(Register rn, int32_t value, Condition cond = AL);
 
   // Load and Store. May clobber IP.
   void LoadImmediate(Register rd, int32_t value, Condition cond = AL);
   void LoadSImmediate(SRegister sd, float value, Condition cond = AL);
   void LoadDImmediate(DRegister dd, double value,
                       Register scratch, Condition cond = AL);
   void MarkExceptionHandler(Label* label);
+  void Drop(intptr_t stack_elements);
   void LoadObject(Register rd, const Object& object);
   void LoadFromOffset(LoadOperandType type,
                       Register reg,
                       Register base,
                       int32_t offset,
                       Condition cond = AL);
   void StoreToOffset(StoreOperandType type,
                      Register reg,
                      Register base,
                      int32_t offset,
@@ skipping 38 matching lines @@
   void SmiUntag(Register reg, Condition cond = AL) {
     Asr(reg, reg, kSmiTagSize, cond);
   }
 
   // Function frame setup and tear down.
   void EnterFrame(RegList regs, intptr_t frame_space);
   void LeaveFrame(RegList regs);
   void Ret();
   void ReserveAlignedFrameSpace(intptr_t frame_space);
 
+  // Create a frame for calling into runtime that preserves all volatile
+  // registers.  Frame's SP is guaranteed to be correctly aligned and
+  // frame_space bytes are reserved under it.
+  void EnterCallRuntimeFrame(intptr_t frame_space);
+  void LeaveCallRuntimeFrame();
+
+  void CallRuntime(const RuntimeEntry& entry);
+
   // Emit data (e.g encoded instruction or immediate) in instruction stream.
   void Emit(int32_t value);
 
  private:
   AssemblerBuffer buffer_;  // Contains position independent code.
   GrowableObjectArray& object_pool_;  // Objects and patchable jump targets.
   int32_t prologue_offset_;
 
   int32_t AddObject(const Object& obj);
   int32_t AddExternalLabel(const ExternalLabel* label);
@@ skipping 108 matching lines @@
     return *reg1 - *reg2;
   }
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_ARM_H_