VM: Don't generate allocation stats code in product mode.

runtime/vm/intrinsifier_x64.cc

Index: runtime/vm/intrinsifier_x64.cc
diff --git a/runtime/vm/intrinsifier_x64.cc b/runtime/vm/intrinsifier_x64.cc
index 5ac5d39bb4d64966a82505077b396e69639e1283..beeb698a0382fcdf2e8737b50f1fe714adb89981 100644
--- a/runtime/vm/intrinsifier_x64.cc
+++ b/runtime/vm/intrinsifier_x64.cc
@@ -153,7 +153,7 @@ void Intrinsifier::GrowableArray_add(Assembler* assembler) {
 #define TYPED_ARRAY_ALLOCATION(type_name, cid, max_len, scale_factor)          \
   Label fall_through;                                                          \
   const intptr_t kArrayLengthStackOffset = 1 * kWordSize;                      \
-  __ MaybeTraceAllocation(cid, &fall_through, false);                          \
+  NOT_IN_PRODUCT(__ MaybeTraceAllocation(cid, &fall_through, false));          \
   __ movq(RDI, Address(RSP, kArrayLengthStackOffset));  /* Array length. */    \
   /* Check that length is a positive Smi. */                                   \
   /* RDI: requested array length argument. */                                  \
@@ -197,7 +197,7 @@ void Intrinsifier::GrowableArray_add(Assembler* assembler) {
   /* next object start and initialize the object. */                           \
   __ movq(Address(R13, Heap::TopOffset(space)), RCX);                          \
   __ addq(RAX, Immediate(kHeapObjectTag));                                     \
-  __ UpdateAllocationStatsWithSize(cid, RDI, space);                           \
+  NOT_IN_PRODUCT(__ UpdateAllocationStatsWithSize(cid, RDI, space));           \
   /* Initialize the tags. */                                                   \
   /* RAX: new object start as a tagged pointer. */                             \
   /* RCX: new object end address. */                                           \
@@ -1826,7 +1826,7 @@ static void TryAllocateOnebyteString(Assembler* assembler,
                                      Label* ok,
                                      Label* failure,
                                      Register length_reg) {
-  __ MaybeTraceAllocation(kOneByteStringCid, failure, false);
+  NOT_IN_PRODUCT(__ MaybeTraceAllocation(kOneByteStringCid, failure, false));
   if (length_reg != RDI) {
     __ movq(RDI, length_reg);
   }
@@ -1859,7 +1859,7 @@ static void TryAllocateOnebyteString(Assembler* assembler,
   // next object start and initialize the object.
   __ movq(Address(R13, Heap::TopOffset(space)), RCX);
   __ addq(RAX, Immediate(kHeapObjectTag));
-  __ UpdateAllocationStatsWithSize(cid, RDI, space);
+  NOT_IN_PRODUCT(__ UpdateAllocationStatsWithSize(cid, RDI, space));
 
   // Initialize the tags.
   // RAX: new object start as a tagged pointer.