Track live instance and allocation counts for classes

runtime/vm/stub_code_arm.cc

Index: runtime/vm/stub_code_arm.cc
diff --git a/runtime/vm/stub_code_arm.cc b/runtime/vm/stub_code_arm.cc
index d921151996ca5a384df6f6c71b5020d7df5134ce..ce584488c78df544d10b1c915bd20f1ffa943d5a 100644
--- a/runtime/vm/stub_code_arm.cc
+++ b/runtime/vm/stub_code_arm.cc
@@ -610,10 +610,12 @@ void StubCode::GenerateAllocateArrayStub(Assembler* assembler) {
     // Successfully allocated the object(s), now update top to point to
     // next object start and initialize the object.
     // R0: potential new object start.
+    // R3: array size.
     // R7: potential next object start.
     // R8: Points to new space object.
     __ StoreToOffset(kWord, R7, R8, Scavenger::top_offset());
     __ add(R0, R0, ShifterOperand(kHeapObjectTag));
+    __ UpdateAllocationStatsWithSize(kArrayCid, R3, R8);
 
     // R0: new object start as a tagged pointer.
     // R1: array element type.
@@ -946,6 +948,7 @@ void StubCode::GenerateAllocateContextStub(Assembler* assembler) {
     // R3: next object start.
     __ str(R3, Address(R5, 0));
     __ add(R0, R0, ShifterOperand(kHeapObjectTag));
+    __ UpdateAllocationStatsWithSize(context_class.id(), R2, R5);
 
     // Calculate the size tag.
     // R0: new object.
@@ -1128,6 +1131,7 @@ void StubCode::GenerateAllocationStubForClass(Assembler* assembler,
     // Successfully allocated the object(s), now update top to point to
     // next object start and initialize the object.
     __ str(R3, Address(R5, 0));
+    __ UpdateAllocationStats(cls.id(), R5);
 
     if (is_cls_parameterized) {
       // Initialize the type arguments field in the object.
@@ -1292,7 +1296,9 @@ void StubCode::GenerateAllocationStubForClosure(Assembler* assembler,
     // Successfully allocated the object, now update top to point to
     // next object start and initialize the object.
     __ str(R3, Address(R5, 0));
-
+    // R3: Size of allocation in bytes.
+    __ sub(R3, R3, ShifterOperand(R2));
+    __ UpdateAllocationStatsWithSize(cls.id(), R3, R5);
     // R2: new closure object.
     // R4: new context object (only if is_implicit_closure).
     // Set the tags.