v8/test/mjsunit/compiler/osr-manual2.js
mstarzinger 434ef2ccfd [turbofan] Remove deprecated --turbo-osr flag.
The flag in question used to fall-back to Crankshaft whenever an OSR
request couldn't be handled by TurboFan. By now OSR in TurboFan is
sufficiently stabilized that one single --use-osr flag should do it.

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/1960043002
Cr-Commit-Position: refs/heads/master@{#36102}
2016-05-09 09:12:01 +00:00

36 lines
945 B
JavaScript

// Copyright 2014 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 --use-osr
var counter = 188;
function gen(w) { // defeat compiler cache.
var num = counter++;
var Z = [ "", "", "", ];
Z[w] = "%OptimizeOsr()";
var src =
"function f" + num + "(a,b,c) {" +
" var x = 0;" +
" var y = 0;" +
" var z = 0;" +
" while (a > 0) { " + Z[0] + "; x += 19; a--; var j=2; while(j--); }" +
" while (b > 0) { " + Z[1] + "; y += 23; b--; var j=2; while(j--); }" +
" while (c > 0) { " + Z[2] + "; z += 29; c--; var j=2; while(j--); }" +
" return x + y + z;" +
"} f" + num;
return eval(src);
}
function check(x,a,b,c) {
for (var i = 0; i < 3; i++) {
var f = gen(i);
assertEquals(x, f(a, b, c));
}
}
check(213, 3,3,3);
check(365, 4,5,6);
check(6948, 99,98,97);