Inline Array.prototype.forEach in TurboFan

src/builtins/builtins-conversion-gen.cc

 // Copyright 2016 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/builtins/builtins-utils-gen.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
 #include "src/code-stub-assembler.h"
 #include "src/objects-inl.h"
 
@@ skipping 231 matching lines @@
   Label return_true(this), return_false(this);
   BranchIfToBooleanIsTrue(value, &return_true, &return_false);
 
   BIND(&return_true);
   Return(BooleanConstant(true));
 
   BIND(&return_false);
   Return(BooleanConstant(false));
 }
 
+// ES6 section 7.1.2 ToBoolean ( argument )
+// Requires parameter on stack to that it can be used as a continuation from a
+// LAZY deopt.
+TF_BUILTIN(ToBooleanLazyDeoptContinuation, CodeStubAssembler) {

[Benedikt Meurer, 2017/05/18 06:32:52]

That should be in a separate follow-up CL.

[danno, 2017/05/22 10:28:10]

Done.

+  Node* value = Parameter(Descriptor::kArgument);
+
+  Label return_true(this), return_false(this);
+  BranchIfToBooleanIsTrue(value, &return_true, &return_false);
+
+  BIND(&return_true);
+  Return(BooleanConstant(true));
+
+  BIND(&return_false);
+  Return(BooleanConstant(false));
+}
+
 TF_BUILTIN(ToLength, CodeStubAssembler) {
   Node* context = Parameter(Descriptor::kContext);
 
   // We might need to loop once for ToNumber conversion.
   VARIABLE(var_len, MachineRepresentation::kTagged,
            Parameter(Descriptor::kArgument));
   Label loop(this, &var_len);
   Goto(&loop);
   BIND(&loop);
   {
@@ skipping 128 matching lines @@
 
 // ES6 section 12.5.5 typeof operator
 TF_BUILTIN(Typeof, CodeStubAssembler) {
   Node* object = Parameter(TypeofDescriptor::kObject);
 
   Return(Typeof(object));
 }
 
 }  // namespace internal
 }  // namespace v8