c42f5829a1
In the shell sample don't print the result of executing a script, only evaluating expressions. Fixed issue when building samples on Windows using a shared V8 library. Added visibility option on Linux build which makes the generated library 18% smaller. Changed build system to accept multiple build modes in one build and generate seperate objects, libraries and executables for each mode. Removed deferred negation optimization (a * -b => -(a * b)) since this visibly changes operand conversion order. Improved parsing performance by introducing stack guard in preparsing. Without a stack guard preparsing always bails out with stack overflow. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
60 lines
2.3 KiB
JavaScript
60 lines
2.3 KiB
JavaScript
// Copyright 2008 Google Inc. 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.
|
|
|
|
const SMI_MAX = (1 << 30) - 1;
|
|
const SMI_MIN = -(1 << 30);
|
|
|
|
function testmulneg(a, b) {
|
|
var base = a * b;
|
|
assertEquals(-base, a * -b);
|
|
assertEquals(-base, -a * b);
|
|
assertEquals(base, -a * -b);
|
|
}
|
|
|
|
testmulneg(2, 3);
|
|
testmulneg(SMI_MAX, 3);
|
|
testmulneg(SMI_MIN, 3);
|
|
testmulneg(3.2, 2.3);
|
|
|
|
var x = { valueOf: function() { return 2; } };
|
|
var y = { valueOf: function() { return 3; } };
|
|
|
|
testmulneg(x, y);
|
|
|
|
// The test below depends on the correct evaluation order, which is not
|
|
// implemented by any of the known JS engines.
|
|
var z;
|
|
var v = { valueOf: function() { z+=2; return z; } };
|
|
var w = { valueOf: function() { z+=3; return z; } };
|
|
|
|
z = 0;
|
|
var base = v * w;
|
|
z = 0;
|
|
assertEquals(-base, -v * w);
|
|
z = 0;
|
|
assertEquals(base, -v * -w);
|