Upload Kmake

deps/v8/test/mjsunit/compiler/regress-1051017.js

@@ -0,0 +1,48 @@
+// Copyright 2020 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 foo1() {
+  var x = -Infinity;
+  var i = 0;
+  for (; i < 1; i += x) {
+    if (i == -Infinity) x = +Infinity;
+  }
+  return i;
+}
+
+%PrepareFunctionForOptimization(foo1);
+assertEquals(NaN, foo1());
+assertEquals(NaN, foo1());
+%OptimizeFunctionOnNextCall(foo1);
+assertEquals(NaN, foo1());
+
+
+function foo2() {
+  var i = -Infinity;
+  for (; i <= 42; i += Infinity) { }
+  return i;
+}
+
+%PrepareFunctionForOptimization(foo2);
+assertEquals(NaN, foo2());
+assertEquals(NaN, foo2());
+%OptimizeFunctionOnNextCall(foo2);
+assertEquals(NaN, foo2());
+
+
+function foo3(b) {
+  var k = 0;
+  let str = b ? "42" : "0";
+  for (var i = str; i < 1 && k++ < 1; i -= 0) { }
+  return i;
+}
+
+%PrepareFunctionForOptimization(foo3);
+assertEquals(0, foo3());
+assertEquals(0, foo3());
+%OptimizeFunctionOnNextCall(foo3);
+assertEquals(0, foo3());