object-stats.cc: Annotate PrintJSONArray with V8_NOINLINE

src/heap/object-stats.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/heap/object-stats.h"
 
 #include "src/counters.h"
 #include "src/heap/heap-inl.h"
 #include "src/isolate.h"
 #include "src/macro-assembler.h"
@@ skipping 11 matching lines @@
   memset(over_allocated_, 0, sizeof(over_allocated_));
   memset(size_histogram_, 0, sizeof(size_histogram_));
   memset(over_allocated_histogram_, 0, sizeof(over_allocated_histogram_));
   if (clear_last_time_stats) {
     memset(object_counts_last_time_, 0, sizeof(object_counts_last_time_));
     memset(object_sizes_last_time_, 0, sizeof(object_sizes_last_time_));
   }
   visited_fixed_array_sub_types_.clear();
 }
 
-static void PrintJSONArray(size_t* array, const int len) {
+// Tell the compiler to never inline this: occasionally, the optimizer will
+// decide to inline this and unroll the loop, making the compiled code more than
+// 100KB larger.
+V8_NOINLINE static void PrintJSONArray(size_t* array, const int len) {
   PrintF("[ ");
   for (int i = 0; i < len; i++) {
     PrintF("%zu", array[i]);
     if (i != (len - 1)) PrintF(", ");
   }
   PrintF(" ]");
 }
 
 void ObjectStats::PrintJSON(const char* key) {
   double time = isolate()->time_millis_since_init();
@@ skipping 437 matching lines @@
                           SLOW_TEMPLATE_INSTANTIATIONS_CACHE_SUB_TYPE);
     FixedArray* fast_cache = native_ctx->fast_template_instantiations_cache();
     stats_->RecordFixedArraySubTypeStats(
         fast_cache, FAST_TEMPLATE_INSTANTIATIONS_CACHE_SUB_TYPE,
         fast_cache->Size(), 0);
   }
 }
 
 }  // namespace internal
 }  // namespace v8