Reland: Add unoptimized/optimized variants of MathFloor TF code stub

test/cctest/compiler/test-run-stubs.cc

 // Copyright 2015 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/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/pipeline.h"
 #include "src/parser.h"
 #include "test/cctest/compiler/function-tester.h"
 
 #if V8_TURBOFAN_TARGET
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
 
 
-TEST(RunMathFloorStub) {
+TEST(RunOptimizedMathFloorStub) {
   HandleAndZoneScope scope;
   Isolate* isolate = scope.main_isolate();
 
   // Create code and an accompanying descriptor.
-  MathFloorStub stub(isolate);
+  MathFloorStub stub(isolate, TurboFanIC::CALL_FROM_OPTIMIZED_CODE);
   Handle<Code> code = stub.GenerateCode();
   Zone* zone = scope.main_zone();
-
   CompilationInfo info(&stub, isolate, zone);
   CallDescriptor* descriptor = Linkage::ComputeIncoming(zone, &info);
+  Handle<FixedArray> tv = isolate->factory()->NewFixedArray(10);
 
   // Create a function to call the code using the descriptor.
   Graph graph(zone);
+  CommonOperatorBuilder common(zone);
+  JSOperatorBuilder javascript(zone);
+  MachineOperatorBuilder machine(zone);
+  JSGraph js(isolate, &graph, &common, &javascript, &machine);
+
+  // FunctionTester (ab)uses a 2-argument function
+  Node* start = graph.NewNode(common.Start(4));
+  // Parameter 0 is the number to round
+  Node* numberParam = graph.NewNode(common.Parameter(1), start);
+  Unique<HeapObject> u = Unique<HeapObject>::CreateImmovable(code);
+  Node* theCode = graph.NewNode(common.HeapConstant(u));
+  Unique<HeapObject> tvu = Unique<HeapObject>::CreateImmovable(tv);
+  Node* vector = graph.NewNode(common.HeapConstant(tvu));
+  Node* dummyContext = graph.NewNode(common.NumberConstant(0.0));
+  Node* call =
+      graph.NewNode(common.Call(descriptor), theCode, js.UndefinedConstant(),
+                    js.OneConstant(), vector, js.UndefinedConstant(),
+                    numberParam, dummyContext, start, start);
+  Node* ret = graph.NewNode(common.Return(), call, call, start);
+  Node* end = graph.NewNode(common.End(1), ret);
+  graph.SetStart(start);
+  graph.SetEnd(end);
+  FunctionTester ft(&graph);
+
+  Handle<Object> value = ft.Val(1.5);
+  Handle<Object> result = ft.Call(value, value).ToHandleChecked();
+  CHECK_EQ(1, Smi::cast(*result)->value());
+}
+
+
+TEST(RunUnoptimizedMathFloorStub) {
+  HandleAndZoneScope scope;
+  Isolate* isolate = scope.main_isolate();
+
+  // Create code and an accompanying descriptor.
+  MathFloorStub stub(isolate, TurboFanIC::CALL_FROM_UNOPTIMIZED_CODE);
+  Handle<Code> code = stub.GenerateCode();
+  Zone* zone = scope.main_zone();
+  CompilationInfo info(&stub, isolate, zone);
+  CallDescriptor* descriptor = Linkage::ComputeIncoming(zone, &info);
+  Handle<FixedArray> tv = isolate->factory()->NewFixedArray(10);
+
+  // Create a function to call the code using the descriptor.
+  Graph graph(zone);
   CommonOperatorBuilder common(zone);
   JSOperatorBuilder javascript(zone);
   MachineOperatorBuilder machine(zone);
   JSGraph js(isolate, &graph, &common, &javascript, &machine);
 
   // FunctionTester (ab)uses a 2-argument function
   Node* start = graph.NewNode(common.Start(4));
   // Parameter 0 is the number to round
   Node* numberParam = graph.NewNode(common.Parameter(1), start);
   Unique<HeapObject> u = Unique<HeapObject>::CreateImmovable(code);
   Node* theCode = graph.NewNode(common.HeapConstant(u));
+  Unique<HeapObject> tvu = Unique<HeapObject>::CreateImmovable(tv);
+  Node* vector = graph.NewNode(common.HeapConstant(tvu));
   Node* dummyContext = graph.NewNode(common.NumberConstant(0.0));
-  Node* call = graph.NewNode(common.Call(descriptor), theCode,
-                             js.UndefinedConstant(), js.UndefinedConstant(),
-                             numberParam, dummyContext, start, start);
+  Node* call =
+      graph.NewNode(common.Call(descriptor), theCode, js.UndefinedConstant(),
+                    js.OneConstant(), vector, js.UndefinedConstant(),
+                    numberParam, dummyContext, start, start);
   Node* ret = graph.NewNode(common.Return(), call, call, start);
   Node* end = graph.NewNode(common.End(1), ret);
   graph.SetStart(start);
   graph.SetEnd(end);
   FunctionTester ft(&graph);
 
   Handle<Object> value = ft.Val(1.5);
   Handle<Object> result = ft.Call(value, value).ToHandleChecked();
   CHECK_EQ(1, Smi::cast(*result)->value());
 }
@@ skipping 76 matching lines @@
   FunctionTester ft(&graph);
 
   // Actuall call through to the stub, verifying its result.
   Handle<String> leftArg = ft.Val("links");
   Handle<String> rightArg = ft.Val("rechts");
   Handle<Object> result = ft.Call(leftArg, rightArg).ToHandleChecked();
   CHECK(String::Equals(ft.Val("linksrechts"), Handle<String>::cast(result)));
 }
 
 #endif  // V8_TURBOFAN_TARGET