1/*
2 * Copyright (C) 2015-2016 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#pragma once
27
28#if ENABLE(JIT)
29
30#include "CCallHelpers.h"
31#include "JITMathICInlineResult.h"
32#include "SnippetOperand.h"
33
34namespace JSC {
35
36struct MathICGenerationState;
37
38class JITSubGenerator {
39public:
40 JITSubGenerator() { }
41
42 JITSubGenerator(SnippetOperand leftOperand, SnippetOperand rightOperand,
43 JSValueRegs result, JSValueRegs left, JSValueRegs right,
44 FPRReg leftFPR, FPRReg rightFPR, GPRReg scratchGPR, FPRReg scratchFPR)
45 : m_leftOperand(leftOperand)
46 , m_rightOperand(rightOperand)
47 , m_result(result)
48 , m_left(left)
49 , m_right(right)
50 , m_leftFPR(leftFPR)
51 , m_rightFPR(rightFPR)
52 , m_scratchGPR(scratchGPR)
53 , m_scratchFPR(scratchFPR)
54 { }
55
56 JITMathICInlineResult generateInline(CCallHelpers&, MathICGenerationState&, const ArithProfile*);
57 bool generateFastPath(CCallHelpers&, CCallHelpers::JumpList& endJumpList, CCallHelpers::JumpList& slowPathJumpList, const ArithProfile*, bool shouldEmitProfiling);
58
59 static bool isLeftOperandValidConstant(SnippetOperand) { return false; }
60 static bool isRightOperandValidConstant(SnippetOperand) { return false; }
61
62private:
63 SnippetOperand m_leftOperand;
64 SnippetOperand m_rightOperand;
65 JSValueRegs m_result;
66 JSValueRegs m_left;
67 JSValueRegs m_right;
68 FPRReg m_leftFPR;
69 FPRReg m_rightFPR;
70 GPRReg m_scratchGPR;
71 FPRReg m_scratchFPR;
72};
73
74} // namespace JSC
75
76#endif // ENABLE(JIT)
77