v8/test/mjsunit/asm/if-cloning.js
bmeurer 0882d3ff81 [turbofan] Initial version of branch cloning.
This implements a special case of block cloning to recognize constructs like

 if (a ? b : c) { ... }

that happen to be generated by Emscripten quite often.

Review URL: https://codereview.chromium.org/947963002

Cr-Commit-Position: refs/heads/master@{#26808}
2015-02-24 07:41:36 +00:00

35 lines
768 B
JavaScript

// Copyright 2015 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.
var if0 = (function Module() {
"use asm";
function if0(i, j) {
i = i|0;
j = j|0;
if (i == 0 ? j == 0 : 0) return 1;
return 0;
}
return {if0: if0};
})().if0;
assertEquals(1, if0(0, 0));
assertEquals(0, if0(11, 0));
assertEquals(0, if0(0, -1));
assertEquals(0, if0(-1024, 1));
var if1 = (function Module() {
"use asm";
function if1(i, j) {
i = i|0;
j = j|0;
if (i == 0 ? j == 0 : 1) return 0;
return 1;
}
return {if1: if1};
})().if1;
assertEquals(0, if1(0, 0));
assertEquals(0, if1(11, 0));
assertEquals(1, if1(0, -1));
assertEquals(0, if1(-1024, 9));