Fast compiler: Load globals variables directly from property cells....

src/arm/macro-assembler-arm.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1046 matching lines @@
 
 
 void MacroAssembler::CompareInstanceType(Register map,
                                          Register type_reg,
                                          InstanceType type) {
   ldrb(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset));
   cmp(type_reg, Operand(type));
 }
 
 
+void MacroAssembler::CheckMap(Register obj,
+                              Register scratch,
+                              Handle<Map> map,
+                              Label* fail,
+                              bool is_heap_object) {
+  if (!is_heap_object) {
+    BranchOnSmi(obj, fail);
+  }
+  ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset));
+  mov(ip, Operand(map));
+  cmp(scratch, ip);
+  b(ne, fail);
+}
+
+
 void MacroAssembler::TryGetFunctionPrototype(Register function,
                                              Register result,
                                              Register scratch,
                                              Label* miss) {
   // Check that the receiver isn't a smi.
   BranchOnSmi(function, miss);
 
   // Check that the function really is a function.  Load map into result reg.
   CompareObjectType(function, result, scratch, JS_FUNCTION_TYPE);
   b(ne, miss);
@@ skipping 376 matching lines @@
 }
 
 
 void CodePatcher::Emit(Address addr) {
   masm()->emit(reinterpret_cast<Instr>(addr));
 }
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal