Add stack check in loops so that loops can be stopped. Optimize relational operations.

runtime/vm/flow_graph_compiler_ia32.h

 // 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.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_IA32_H_
 #define VM_FLOW_GRAPH_COMPILER_IA32_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_ia32.h.
 #endif
@@ skipping 52 matching lines @@
   // This makes it easier to measure time spent in the compiler.
   void InitCompiler();
 
   void CompileGraph();
 
   void VisitBlocks();
 
   // Bail out of the flow graph compiler. Does not return to the caller.
   void Bailout(const char* reason);
 
+  void LoadDoubleOrSmiToXmm(XmmRegister result,
+                            Register reg,
+                            Register temp,
+                            Label* not_double_or_smi);
+
   // Returns 'true' if code generation for this function is complete, i.e.,
   // no fall-through to regular code is needed.
   bool TryIntrinsify();
 
   virtual void GenerateCallRuntime(intptr_t cid,
                                    intptr_t token_index,
                                    intptr_t try_index,
                                    const RuntimeEntry& entry);
 
   // Returns pc-offset (in bytes) of the pc after the call, can be used to emit
@@ skipping 203 matching lines @@
   GrowableArray<Register> registers_;
   Label entry_label_;
 
   DISALLOW_COPY_AND_ASSIGN(DeoptimizationStub);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_IA32_H_