[jsperf] Add benchmark for LoadConstantFromPrototype

Bug: v8:9616
Change-Id: Ieca74f8df90b342672c8904beef2c2298f0ba597
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1755991Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63221}

test/js-perf-test/IC/loadconstantfromprototype.js

+// Copyright 2019 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.
+
+new BenchmarkSuite('LoadConstantFromPrototype', [1000], [
+  new Benchmark('LoadConstantFromPrototype', false, false, 0, LoadConstantFromPrototype)
+]);
+
+function Foo() {};
+
+Foo.prototype.bar = {};
+Foo.prototype.covfefe = function() {};
+Foo.prototype.baz = 1;
+
+function LoadConstantFromPrototype() {
+  let foo = new Foo();
+
+  for (let i = 0; i < 1000; ++i) {
+    foo.bar;
+    foo.covfefe;
+    foo.baz;
+  }
+}

test/js-perf-test/IC/run.js

+// Copyright 2019 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.
+
+load('../base.js');
+
+load('loadconstantfromprototype.js');
+
+function PrintResult(name, result) {
+  print(name + '-IC(Score): ' + result);
+}
+
+function PrintStep(name) {}
+
+function PrintError(name, error) {
+  PrintResult(name, error);
+}
+
+BenchmarkSuite.config.doWarmup = undefined;
+BenchmarkSuite.config.doDeterministic = undefined;
+
+BenchmarkSuite.RunSuites({ NotifyResult: PrintResult,
+                           NotifyError: PrintError,
+                           NotifyStep: PrintStep });

test/js-perf-test/JSTests5.json

@@ -618,6 +618,18 @@
         {"name": "Inline-Serialize-Error.stack"},
         {"name": "Recursive-Serialize-Error.stack"}
       ]
+    },
+    {
+      "name": "IC",
+      "path": ["IC"],
+      "main": "run.js",
+      "flags": ["--no-opt"],
+      "resources": ["loadconstantfromprototype.js"],
+      "results_regexp": "^%s\\-IC\\(Score\\): (.+)$",
+      "tests": [
+        {"name": "LoadConstantFromPrototype"
+        }
+      ]
     }
   ]
 }