Track live instance and allocation counts for classes

runtime/vm/stub_code_ia32.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"
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 521 matching lines @@
 }
 
 
 // Called for inline allocation of arrays.
 // Input parameters:
 //   EDX : Array length as Smi.
 //   ECX : array element type (either NULL or an instantiated type).
 // Uses EAX, EBX, ECX, EDI  as temporary registers.
 // NOTE: EDX cannot be clobbered here as the caller relies on it being saved.
 // The newly allocated object is returned in EAX.
 void StubCode::GenerateAllocateArrayStub(Assembler* assembler) {

[Florian Schneider, 2013/11/13 18:06:53]

Also count allocation for arrays?

[Cutch, 2013/11/13 19:09:34]

Done.

   Label slow_case;
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
 
   if (FLAG_inline_alloc) {
     // Compute the size to be allocated, it is based on the array length
     // and is computed as:
     // RoundedAllocationSize((array_length * kwordSize) + sizeof(RawArray)).
     // Assert that length is a Smi.
     __ testl(EDX, Immediate(kSmiTagMask));
@@ skipping 335 matching lines @@
   __ ret();
 }
 
 
 // Called for inline allocation of contexts.
 // Input:
 // EDX: number of context variables.
 // Output:
 // EAX: new allocated RawContext object.
 // EBX and EDX are destroyed.
 void StubCode::GenerateAllocateContextStub(Assembler* assembler) {

[Florian Schneider, 2013/11/13 18:06:53]

Also count allocations of contexts?

[Cutch, 2013/11/13 19:09:34]

Done.

   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   if (FLAG_inline_alloc) {
     const Class& context_class = Class::ZoneHandle(Object::context_class());
     Label slow_case;
     Heap* heap = Isolate::Current()->heap();
     // First compute the rounded instance size.
     // EDX: number of context variables.
     intptr_t fixed_size = (sizeof(RawContext) + kObjectAlignment - 1);
     __ leal(EBX, Address(EDX, TIMES_4, fixed_size));
@@ skipping 215 matching lines @@
       // ECX: potential new object end and, if ECX != EBX, potential new
       // InstantiatedTypeArguments object start.
     }
     // Check if the allocation fits into the remaining space.
     // EAX: potential new object start.
     // EBX: potential next object start.
     __ cmpl(EBX, Address::Absolute(heap->EndAddress()));
     if (FLAG_use_slow_path) {
       __ jmp(&slow_case);
     } else {
-      __ j(ABOVE_EQUAL, &slow_case, Assembler::kNearJump);
+      __ j(ABOVE_EQUAL, &slow_case);
     }
 
     // Successfully allocated the object(s), now update top to point to
     // next object start and initialize the object.
     __ movl(Address::Absolute(heap->TopAddress()), EBX);
+    __ BumpAllocationCount(Heap::kNew, cls.id(), EDI);
 
     if (is_cls_parameterized) {
       // Initialize the type arguments field in the object.
       // EAX: new object start.
       // ECX: potential new object end and, if ECX != EBX, potential new
       // InstantiatedTypeArguments object start.
       // EBX: next object start.
       Label type_arguments_ready;
       __ movl(EDI, Address(ESP, kObjectTypeArgumentsOffset));
       __ cmpl(ECX, EBX);
@@ skipping 106 matching lines @@
   __ ret();
 }
 
 
 // Called for inline allocation of closures.
 // Input parameters:
 //   ESP + 8 : receiver (null if not an implicit instance closure).
 //   ESP + 4 : type arguments object (null if class is no parameterized).
 //   ESP : points to return address.
 // Uses EAX, EBX, ECX, EDX as temporary registers.
 void StubCode::GenerateAllocationStubForClosure(Assembler* assembler,

[Florian Schneider, 2013/11/13 18:06:53]

Also count allocation for closures?

[Cutch, 2013/11/13 19:09:34]

Done.

                                                 const Function& func) {
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   ASSERT(func.IsClosureFunction());
   ASSERT(!func.IsImplicitStaticClosureFunction());
   const bool is_implicit_instance_closure =
       func.IsImplicitInstanceClosureFunction();
   const Class& cls = Class::ZoneHandle(func.signature_class());
   const bool has_type_arguments = cls.NumTypeArguments() > 0;
   const intptr_t kTypeArgumentsOffset = 1 * kWordSize;
@@ skipping 923 matching lines @@
   const Register temp = ECX;
   __ movl(left, Address(ESP, 2 * kWordSize));
   __ movl(right, Address(ESP, 1 * kWordSize));
   GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp);
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32