| | 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 | #ifndef FTLRegisterAtOffset_h |
| | 27 | #define FTLRegisterAtOffset_h |
| | 28 | |
| | 29 | #if ENABLE(FTL_JIT) |
| | 30 | |
| | 31 | #include "Reg.h" |
| | 32 | #include <wtf/PrintStream.h> |
| | 33 | |
| | 34 | namespace JSC { namespace FTL { |
| | 35 | |
| | 36 | class RegisterAtOffset { |
| | 37 | public: |
| | 38 | RegisterAtOffset() |
| | 39 | : m_offset(0) |
| | 40 | { |
| | 41 | } |
| | 42 | |
| | 43 | RegisterAtOffset(Reg reg, ptrdiff_t offset) |
| | 44 | : m_reg(reg) |
| | 45 | , m_offset(offset) |
| | 46 | { |
| | 47 | } |
| | 48 | |
| | 49 | bool operator!() const { return !m_reg; } |
| | 50 | |
| | 51 | Reg reg() const { return m_reg; } |
| | 52 | ptrdiff_t offset() const { return m_offset; } |
| | 53 | |
| | 54 | bool operator==(const RegisterAtOffset& other) const |
| | 55 | { |
| | 56 | return reg() == other.reg() && offset() == other.offset(); |
| | 57 | } |
| | 58 | |
| | 59 | bool operator<(const RegisterAtOffset& other) const |
| | 60 | { |
| | 61 | if (reg() != other.reg()) |
| | 62 | return reg() < other.reg(); |
| | 63 | return offset() < other.offset(); |
| | 64 | } |
| | 65 | |
| | 66 | static Reg getReg(RegisterAtOffset* value) { return value->reg(); } |
| | 67 | |
| | 68 | void dump(PrintStream& out) const; |
| | 69 | |
| | 70 | private: |
| | 71 | Reg m_reg; |
| | 72 | ptrdiff_t m_offset; |
| | 73 | }; |
| | 74 | |
| | 75 | } } // namespace JSC::FTL |
| | 76 | |
| | 77 | #endif // ENABLE(FTL_JIT) |
| | 78 | |
| | 79 | #endif // FTLRegisterAtOffset_h |
| | 80 | |
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