Recognize Math's min and max function for doubles and inline the operation.

runtime/vm/object.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 8893 matching lines @@
 }
 
 
 void ICData::AddCheck(const GrowableArray<intptr_t>& class_ids,
                       const Function& target) const {
   DEBUG_ASSERT(!HasCheck(class_ids));
   ASSERT(num_args_tested() > 1);  // Otherwise use 'AddReceiverCheck'.
   ASSERT(class_ids.length() == num_args_tested());
   const intptr_t old_num = NumberOfChecks();
   Array& data = Array::Handle(ic_data());
+  // ICData of static calls with nume_args_tested() > 0 have initially a

[zra, 2013/07/22 16:21:02]

num_args_tested?

[srdjan, 2013/07/22 16:42:48]

Done.

+  // dummy set of cids entered (see ICData::AddTarget). That entry is
+  // overwritten by first real type feedback data.
+  if (old_num == 1) {
+    bool has_dummy_entry = true;
+    for (intptr_t i = 0; i < num_args_tested(); i++) {
+      if (Smi::Value(Smi::RawCast(data.At(i))) != kObjectCid) {
+        has_dummy_entry = false;
+        break;
+      }
+    }
+    if (has_dummy_entry) {
+      ASSERT(target.raw() == data.At(num_args_tested()));
+      // Replace dummy entry.
+      Smi& value = Smi::Handle();
+      for (intptr_t i = 0; i < num_args_tested(); i++) {
+        ASSERT(class_ids[i] != kIllegalCid);
+        value = Smi::New(class_ids[i]);
+        data.SetAt(i, value);
+      }
+      return;
+    }
+  }
   const intptr_t new_len = data.Length() + TestEntryLength();
   data = Array::Grow(data, new_len, Heap::kOld);
   set_ic_data(data);
   WriteSentinel(data);
   intptr_t data_pos = old_num * TestEntryLength();
   Smi& value = Smi::Handle();
   for (intptr_t i = 0; i < class_ids.length(); i++) {
     // kIllegalCid is used as terminating value, do not add it.
     ASSERT(class_ids[i] != kIllegalCid);
     value = Smi::New(class_ids[i]);
@@ skipping 5317 matching lines @@
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   stream->OpenObject();
   stream->CloseObject();
 }
 
 
 }  // namespace dart