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 11350d387353c2e5e6c0be23b7d22980a2c11226..7e863c23aa66974eda92ddf049b24edadfdc07a8 100644
--- a/runtime/vm/stub_code_arm.cc
+++ b/runtime/vm/stub_code_arm.cc
@@ -623,10 +623,12 @@ 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.
@@ -959,6 +961,7 @@ 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.
@@ -1141,6 +1144,7 @@ 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.
@@ -1305,7 +1309,9 @@ 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.