v8/test/mjsunit/shift-for-integer-div.js
Mythri 7371c34b6b Use --opt instead of --crankshaft in tests.
1. Replaces --crankshaft with --opt in tests.
2. Also fixes presubmit to check for --opt flag when
assertOptimized is used.
3. Updates testrunner/local/variants.py and 
v8_foozie.py to use --opt flag.
This would mean, nooptimize variant means there are
no optimizations. Not even with %OptimizeFunctionOnNextCall.

Bug:v8:6325

Change-Id: I638e743d0773a6729c6b9749e2ca1e2537f12ce6
Reviewed-on: https://chromium-review.googlesource.com/490206
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44985}
2017-04-28 14:20:39 +00:00

99 lines
2.8 KiB
JavaScript

// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax --opt --no-always-opt
function divp4(x) {
return x / 4;
}
divp4(8);
divp4(8);
%OptimizeFunctionOnNextCall(divp4);
assertEquals(2, divp4(8));
assertEquals(0.5, divp4(2));
function divn4(x) {
return x / (-4);
}
divn4(8);
divn4(8);
%OptimizeFunctionOnNextCall(divn4);
assertEquals(-2, divn4(8));
// Check for (0 / -x)
assertEquals(-0, divn4(0));
// Check for (kMinInt / -1)
function divn1(x) {
return x / (-1);
}
var two_31 = 1 << 31;
divn1(2);
divn1(2);
%OptimizeFunctionOnNextCall(divn1);
assertEquals(-2, divn1(2));
assertEquals(-two_31, divn1(two_31));
//Check for truncating to int32 case
function divp4t(x) {
return (x / 4) | 0;
}
divp4t(8);
divp4t(8);
%OptimizeFunctionOnNextCall(divp4t);
assertEquals(-1, divp4t(-5));
assertEquals(1, divp4t(5));
assertOptimized(divp4t);
function divn4t(x) {
return (x / -4) | 0;
}
divn4t(8);
divn4t(8);
%OptimizeFunctionOnNextCall(divn4t);
assertEquals(1, divn4t(-5));
assertEquals(-1, divn4t(5));
assertOptimized(divn4t);
// Check kMinInt case.
function div_by_two(x) {
return (x / 2) | 0;
}
div_by_two(12);
div_by_two(34);
%OptimizeFunctionOnNextCall(div_by_two);
div_by_two(56);
assertEquals(-(1 << 30), div_by_two(1 << 31));