When checking against non-parametrized types use a cache to hold result tuples (class, result). Tha…

runtime/vm/object.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_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1965 matching lines @@
 
 
 class PcDescriptors : public Object {
  public:
   enum Kind {
     kDeopt = 0,  // Deoptimization cotinuation point.
     kPatchCode,  // Buffer for patching code entry.
     kIcCall,     // IC call.
     kFuncCall,   // Call to known target, e.g. static call, closure call.
     kReturn,     // Return from function.
+    kTypeTest,   // Array caching previous type tests.
     kOther
   };
 
   intptr_t Length() const;
 
   uword PC(intptr_t index) const;
   PcDescriptors::Kind DescriptorKind(intptr_t index) const;
   const char* KindAsStr(intptr_t index) const;
   intptr_t NodeId(intptr_t index) const;
   intptr_t TokenIndex(intptr_t index) const;
@@ skipping 236 matching lines @@
 
   int32_t GetPointerOffsetAt(int index) const {
     return *PointerOffsetAddrAt(index);
   }
   intptr_t GetTokenIndexOfPC(uword pc) const;
 
   // Find pc of patch code buffer. Return 0 if not found.
   uword GetPatchCodePc() const;
 
   uword GetDeoptPcAtNodeId(intptr_t node_id) const;
+  uword GetTypeTestAtNodeId(intptr_t node_id) const;
 
   // Returns true if there is an object in the code between 'start_offset'
   // (inclusive) and 'end_offset' (exclusive).
   bool ObjectExistInArea(intptr_t start_offest, intptr_t end_offset) const;
 
   // Each (*node_ids)[n] has a an extracted ic data array (*arrays)[n].
   void ExtractIcDataArraysAtCalls(
       GrowableArray<intptr_t>* node_ids,
       const GrowableObjectArray& ic_data_objs) const;
 
@@ skipping 1712 matching lines @@
 }
 
 
 intptr_t Stackmap::SizeInBits() const {
   return (Smi::Value(raw_ptr()->bitmap_size_in_bytes_) * kBitsPerByte);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_