| 1 | /*
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| 2 | * Copyright (C) 2016 Apple Inc. All rights reserved.
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| 3 | * Copyright (C) 2017 Yusuke Suzuki <[email protected]>.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | *
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| 14 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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| 15 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 17 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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| 18 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 19 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 20 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 21 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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| 22 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 25 | */
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| 26 |
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| 27 | #pragma once
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| 28 |
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| 29 | #if ENABLE(JIT)
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| 30 |
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| 31 | #include "CCallHelpers.h"
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| 32 | #include "SnippetReg.h"
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| 33 | #include "SnippetSlowPathCalls.h"
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| 34 |
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| 35 | namespace JSC {
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| 36 |
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| 37 | class SnippetParams {
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| 38 | WTF_MAKE_NONCOPYABLE(SnippetParams);
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| 39 | public:
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| 40 | virtual ~SnippetParams() { }
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| 41 |
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| 42 | class Value {
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| 43 | public:
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| 44 | Value(SnippetReg reg)
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| 45 | : m_reg(reg)
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| 46 | {
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| 47 | }
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| 48 |
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| 49 | Value(SnippetReg reg, JSValue value)
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| 50 | : m_reg(reg)
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| 51 | , m_value(value)
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| 52 | {
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| 53 | }
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| 54 |
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| 55 | bool isGPR() const { return m_reg.isGPR(); }
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| 56 | bool isFPR() const { return m_reg.isFPR(); }
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| 57 | bool isJSValueRegs() const { return m_reg.isJSValueRegs(); }
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| 58 | GPRReg gpr() const { return m_reg.gpr(); }
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| 59 | FPRReg fpr() const { return m_reg.fpr(); }
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| 60 | JSValueRegs jsValueRegs() const { return m_reg.jsValueRegs(); }
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| 61 |
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| 62 | SnippetReg reg() const
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| 63 | {
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| 64 | return m_reg;
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| 65 | }
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| 66 |
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| 67 | JSValue value() const
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| 68 | {
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| 69 | return m_value;
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| 70 | }
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| 71 |
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| 72 | private:
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| 73 | SnippetReg m_reg;
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| 74 | JSValue m_value;
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| 75 | };
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| 76 |
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| 77 | unsigned size() const { return m_regs.size(); }
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| 78 | const Value& at(unsigned index) const { return m_regs[index]; }
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| 79 | const Value& operator[](unsigned index) const { return at(index); }
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| 80 |
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| 81 | GPRReg gpScratch(unsigned index) const { return m_gpScratch[index]; }
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| 82 | FPRReg fpScratch(unsigned index) const { return m_fpScratch[index]; }
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| 83 |
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| 84 | SnippetParams(VM& vm, Vector<Value>&& regs, Vector<GPRReg>&& gpScratch, Vector<FPRReg>&& fpScratch)
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| 85 | : m_vm(vm)
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| 86 | , m_regs(WTFMove(regs))
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| 87 | , m_gpScratch(WTFMove(gpScratch))
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| 88 | , m_fpScratch(WTFMove(fpScratch))
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| 89 | {
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| 90 | }
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| 91 |
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| 92 | VM& vm() { return m_vm; }
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| 93 |
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| 94 | template<typename FunctionType, typename ResultType, typename... Arguments>
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| 95 | void addSlowPathCall(CCallHelpers::JumpList from, CCallHelpers& jit, FunctionType function, ResultType result, Arguments... arguments)
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| 96 | {
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| 97 | addSlowPathCallImpl(from, jit, function, result, std::make_tuple(arguments...));
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| 98 | }
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| 99 |
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| 100 | private:
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| 101 | #define JSC_DEFINE_CALL_OPERATIONS(OperationType, ResultType, ...) JS_EXPORT_PRIVATE virtual void addSlowPathCallImpl(CCallHelpers::JumpList, CCallHelpers&, OperationType, ResultType, std::tuple<__VA_ARGS__> args) = 0;
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| 102 | SNIPPET_SLOW_PATH_CALLS(JSC_DEFINE_CALL_OPERATIONS)
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| 103 | #undef JSC_DEFINE_CALL_OPERATIONS
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| 104 |
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| 105 | VM& m_vm;
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| 106 | Vector<Value> m_regs;
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| 107 | Vector<GPRReg> m_gpScratch;
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| 108 | Vector<FPRReg> m_fpScratch;
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| 109 | };
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| 110 |
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| 111 | }
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| 112 |
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| 113 | #endif
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