[turbofan] Optimize %_IsJSReceiver based on input type.

test/unittests/compiler/js-intrinsic-lowering-unittest.cc

Index: test/unittests/compiler/js-intrinsic-lowering-unittest.cc
diff --git a/test/unittests/compiler/js-intrinsic-lowering-unittest.cc b/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
index 0c2568f566a3dd4f10ee38430e14de7887e175c6..5663086c1d0ea1ea3742644f4202b02ea0a0e4d6 100644
--- a/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
+++ b/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
@@ -7,6 +7,7 @@
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-intrinsic-lowering.h"
 #include "src/compiler/js-operator.h"
+#include "src/types-inl.h"
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/compiler/node-test-utils.h"
 #include "testing/gmock-support.h"
@@ -23,9 +24,9 @@ namespace v8 {
 namespace internal {
 namespace compiler {
 
-class JSIntrinsicLoweringTest : public GraphTest {
+class JSIntrinsicLoweringTest : public TypedGraphTest {
  public:
-  JSIntrinsicLoweringTest() : GraphTest(3), javascript_(zone()) {}
+  JSIntrinsicLoweringTest() : TypedGraphTest(3), javascript_(zone()) {}
   ~JSIntrinsicLoweringTest() override {}
 
  protected:
@@ -287,9 +288,9 @@ TEST_F(JSIntrinsicLoweringTest, InlineIsRegExp) {
 // %_IsJSReceiver
 
 
-TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiver) {
-  Node* const input = Parameter(0);
-  Node* const context = Parameter(1);
+TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiverWithAny) {
+  Node* const input = Parameter(Type::Any());
+  Node* const context = Parameter(Type::Any());
   Node* const effect = graph()->start();
   Node* const control = graph()->start();
   Reduction const r = Reduce(graph()->NewNode(
@@ -302,7 +303,7 @@ TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiver) {
   EXPECT_THAT(
       phi,
       IsPhi(
-          static_cast<MachineType>(kTypeBool | kRepTagged), IsFalseConstant(),
+          kMachAnyTagged, IsFalseConstant(),
           IsUint32LessThanOrEqual(
               IsInt32Constant(FIRST_JS_RECEIVER_TYPE),
               IsLoadField(AccessBuilder::ForMapInstanceType(),
@@ -315,6 +316,32 @@ TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiver) {
 }
 
 
+TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiverWithReceiver) {
+  Node* const input = Parameter(Type::Receiver());
+  Node* const context = Parameter(Type::Any());
+  Node* const effect = graph()->start();
+  Node* const control = graph()->start();
+  Reduction const r = Reduce(graph()->NewNode(
+      javascript()->CallRuntime(Runtime::kInlineIsJSReceiver, 1), input,
+      context, effect, control));
+  ASSERT_TRUE(r.Changed());
+  EXPECT_THAT(r.replacement(), IsTrueConstant());
+}
+
+
+TEST_F(JSIntrinsicLoweringTest, InlineIsJSReceiverWithUndefined) {
+  Node* const input = Parameter(Type::Undefined());
+  Node* const context = Parameter(Type::Any());
+  Node* const effect = graph()->start();
+  Node* const control = graph()->start();
+  Reduction const r = Reduce(graph()->NewNode(
+      javascript()->CallRuntime(Runtime::kInlineIsJSReceiver, 1), input,
+      context, effect, control));
+  ASSERT_TRUE(r.Changed());
+  EXPECT_THAT(r.replacement(), IsFalseConstant());
+}
+
+
 // -----------------------------------------------------------------------------
 // %_JSValueGetValue