source: webkit/trunk/JavaScriptCore/kjs/operations.cpp@ 37240

Last change on this file since 37240 was 36876, checked in by [email protected], 17 years ago

2008-09-24 Maciej Stachowiak <[email protected]>

Reviewed by Oliver Hunt.


  • inline JIT fast case of op_neq
  • remove extra level of function call indirection from slow cases of eq and neq


1% speedup on Richards

  • VM/CTI.cpp: (JSC::CTI::privateCompileMainPass): (JSC::CTI::privateCompileSlowCases):
  • VM/Machine.cpp: (JSC::Machine::privateExecute): (JSC::Machine::cti_op_eq): (JSC::Machine::cti_op_neq):
  • kjs/operations.cpp: (JSC::equal): (JSC::equalSlowCase):
  • kjs/operations.h: (JSC::equalSlowCaseInline):
  • Property svn:eol-style set to native
File size: 2.0 KB
Line 
1/*
2 * Copyright (C) 1999-2000 Harri Porten ([email protected])
3 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#include "config.h"
23#include "operations.h"
24
25#include "Error.h"
26#include "JSObject.h"
27#include "JSString.h"
28#include <math.h>
29#include <stdio.h>
30#include <wtf/MathExtras.h>
31
32#if HAVE(FLOAT_H)
33#include <float.h>
34#endif
35
36namespace JSC {
37
38// ECMA 11.9.3
39bool equal(ExecState* exec, JSValue* v1, JSValue* v2)
40{
41 if (JSImmediate::areBothImmediateNumbers(v1, v2))
42 return v1 == v2;
43
44 return equalSlowCaseInline(exec, v1, v2);
45}
46
47bool equalSlowCase(ExecState* exec, JSValue* v1, JSValue* v2)
48{
49 return equalSlowCaseInline(exec, v1, v2);
50}
51
52bool strictEqual(JSValue* v1, JSValue* v2)
53{
54 if (JSImmediate::areBothImmediate(v1, v2))
55 return v1 == v2;
56
57 if (JSImmediate::isEitherImmediate(v1, v2) & (v1 != JSImmediate::from(0)) & (v2 != JSImmediate::from(0)))
58 return false;
59
60 return strictEqualSlowCaseInline(v1, v2);
61}
62
63bool strictEqualSlowCase(JSValue* v1, JSValue* v2)
64{
65 return strictEqualSlowCaseInline(v1, v2);
66}
67
68NEVER_INLINE JSValue* throwOutOfMemoryError(ExecState* exec)
69{
70 JSObject* error = Error::create(exec, GeneralError, "Out of memory");
71 exec->setException(error);
72 return error;
73}
74
75} // namespace JSC
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