Upload Kmake

deps/v8/test/mjsunit/compiler/regress-934175.js

@@ -0,0 +1,29 @@
+// 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.
+
+// Flags: --allow-natives-syntax
+
+(function ShortcutEmptyStringAddRight() {
+  let ar = new Float32Array(1);
+  function opt(i){
+    return ar[i] + (NaN ? 0 : '');
+  }
+  %PrepareFunctionForOptimization(opt);
+  ar[0] = 42;
+  opt(1);
+  %OptimizeFunctionOnNextCall(opt);
+  assertEquals("42", opt(0));
+})();
+
+(function ShortcutiEmptyStringAddLeft() {
+  let ar = new Float32Array(1);
+  function opt(i){
+    return (NaN ? 0 : '') + ar[i];
+  }
+  %PrepareFunctionForOptimization(opt);
+  ar[0] = 42;
+  opt(1);
+  %OptimizeFunctionOnNextCall(opt);
+  assertEquals("42", opt(0));
+})();