- Annotate instructions that load objects from the ObjectPool or Thread.

runtime/observatory/lib/src/cpu_profile/cpu_profile.dart

 // Copyright (c) 2015, 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.
 
 part of cpu_profiler;
 
 class CodeCallTreeNode {
   final ProfileCode profileCode;
   final int count;
   double get percentage => _percentage;
@@ skipping 352 matching lines @@
       }
     }
   }
 
   ProfileCode.fromMap(this.profile, this.code, Map data) {
     assert(profile != null);
     assert(code != null);
 
     code.profile = this;
 
-    if (code.isDartCode) {
+    if (code.kind == CodeKind.Stub) {
+      attributes.add('stub');
+    } else if (code.kind == CodeKind.Dart) {
+      if (code.isNative) {
+        attributes.add('ffi');  // Not to be confused with a C function.
+      } else {
+        attributes.add('dart');
+      }
+      if (code.hasIntrinsic) {
+        attributes.add('intrinsic');
+      }
       if (code.isOptimized) {
         attributes.add('optimized');
       } else {
         attributes.add('unoptimized');
       }
-    }
-    if (code.isDartCode) {
-      attributes.add('dart');
     } else if (code.kind == CodeKind.Tag) {
       attributes.add('tag');
     } else if (code.kind == CodeKind.Native) {
       attributes.add('native');
     }
     inclusiveTicks = int.parse(data['inclusiveTicks']);
     exclusiveTicks = int.parse(data['exclusiveTicks']);
 
     normalizedExclusiveTicks = exclusiveTicks / profile.sampleCount;
 
@@ skipping 117 matching lines @@
         return true;
       }
     }
     return false;
   }
 
   void _addKindBasedAttributes(Set<String> attribs) {
     if (function.kind == FunctionKind.kTag) {
       attribs.add('tag');
     } else if (function.kind == FunctionKind.kStub) {
-      attribs.add('dart');
       attribs.add('stub');
     } else if (function.kind == FunctionKind.kNative) {
       attribs.add('native');
     } else if (function.kind.isSynthetic()) {
       attribs.add('synthetic');
+    } else if (function.isNative) {
+      attribs.add('ffi');  // Not to be confused with a C function.
     } else {
       attribs.add('dart');
     }
+    if (function.hasIntrinsic == true) {

[rmacnak, 2015/11/12 02:15:13]

Hit checked mode error, which suggests this sometimes runs before function has
loaded from its servicemap. Not sure how any of the attritutes successfully
display if that's the case though.

[Cutch, 2015/11/12 17:33:52]

Maybe rewrite to:

if ((function is ServiceFunction) && function.hasIntrinsic) {
}

[rmacnak, 2015/11/12 21:50:46]

It's hasIntrinsic that's null, not function.

+      attribs.add('intrinsic');
+    }
   }
 
   ProfileFunction.fromMap(this.profile, this.function, Map data) {
     function.profile = this;
     for (var codeIndex in data['codes']) {
       var profileCode = profile.codes[codeIndex];
       profileCodes.add(profileCode);
     }
     profileCodes.sort(_sortCodes);
 
@@ skipping 322 matching lines @@
   int approximateMillisecondsForCount(count) {
     var MICROSECONDS_PER_MILLISECOND = 1000.0;
     return (count * samplePeriod) ~/ MICROSECONDS_PER_MILLISECOND;
   }
 
   double approximateSecondsForCount(count) {
     var MICROSECONDS_PER_SECOND = 1000000.0;
     return (count * samplePeriod) / MICROSECONDS_PER_SECOND;
   }
 }