[date] Use explicit control flow to replace %_ThrowIfNotADate.

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index bdc025876c39ee5ca5ac7b485291c419e357376f..ea2582241b39e9e1067aa5ee9c46f11e272bd275 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -3614,23 +3614,25 @@ void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitThrowIfNotADate(CallRuntime* expr) {
+void FullCodeGenerator::EmitIsDate(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(1, args->length());
 
-  VisitForAccumulatorValue(args->at(0));  // Load the object.
+  VisitForAccumulatorValue(args->at(0));
 
-  Label done, not_date_object;
-  Register object = x0;
-  Register result = x0;
+  Label materialize_true, materialize_false;
+  Label* if_true = nullptr;
+  Label* if_false = nullptr;
+  Label* fall_through = nullptr;
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(object, &not_date_object);
-  __ JumpIfObjectType(object, x10, x10, JS_DATE_TYPE, &done);
-  __ Bind(&not_date_object);
-  __ CallRuntime(Runtime::kThrowNotDateError, 0);
+  __ JumpIfSmi(x0, if_false);
+  __ CompareObjectType(x0, x10, x11, JS_DATE_TYPE);
+  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
+  Split(eq, if_true, if_false, fall_through);
 
-  __ Bind(&done);
-  context()->Plug(result);
+  context()->Plug(if_true, if_false);
 }