1/* 2 * Copyright (C) 2013, 2014 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "FTLInlineCacheSize.h" 28 29#if ENABLE(FTL_JIT) 30 31#include "JITInlineCacheGenerator.h" 32#include "MacroAssembler.h" 33 34namespace JSC { namespace FTL { 35 36// The default sizes are x86-64-specific, and were found empirically. They have to cover the worst 37// possible combination of registers leading to the largest possible encoding of each instruction in 38// the IC. 39// 40// FIXME: The ARM64 sizes are overestimates; if there is any branch compaction then we should be able 41// to get away with less. The branch compaction code currently validates the size of the IC before 42// doing any compaction, so we need to overestimate and give the uncompacted size. This would be 43// relatively easy to fix. 44// https://bugs.webkit.org/show_bug.cgi?id=129335 45 46size_t sizeOfGetById() 47{ 48#if CPU(ARM64) 49 return 36; 50#else 51 return 30; 52#endif 53} 54 55size_t sizeOfPutById() 56{ 57#if CPU(ARM64) 58 return 44; 59#else 60 return 32; 61#endif 62} 63 64size_t sizeOfCall() 65{ 66#if CPU(ARM64) 67 return 56; 68#else 69 return 53; 70#endif 71} 72 73} } // namespace JSC::FTL 74 75#endif // ENABLE(FTL_JIT) 76 77