Inline Array.prototype.forEach in TurboFan

src/builtins/builtins-conversion-gen.cc

Index: src/builtins/builtins-conversion-gen.cc
diff --git a/src/builtins/builtins-conversion-gen.cc b/src/builtins/builtins-conversion-gen.cc
index 21d59346b54a9d862ab77eaa74af088c616ce61f..b134750231348bf99acd6f0f03ac448e53ad9551 100644
--- a/src/builtins/builtins-conversion-gen.cc
+++ b/src/builtins/builtins-conversion-gen.cc
@@ -249,6 +249,22 @@ TF_BUILTIN(ToBoolean, CodeStubAssembler) {
   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);