never-baseline.js 709 Bytes
Newer Older
1 2 3 4
// Copyright 2017 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.

5
// Flags: --allow-natives-syntax --no-stress-fullcodegen
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

function f(a, b) {
  %DeoptimizeNow();
  return a + b;
}

// Go through enough optimization and deoptimization cycles in order for the
// function {f} to be marked as optimization disabled.
for (var i = 0; i < 16; ++i) {
  %OptimizeFunctionOnNextCall(f);
  f(1, 2);
}

// Make the runtime profiler perceive {f} as hot again and then verify that we
// didn't trigger an unintentional baseline compilation.
for (var i = 0; i < 100000; ++i) {
  f(1, 2);
}
assertTrue(isInterpreted(f));