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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
commit | 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c (patch) | |
tree | 46dcd36c86e7fbc6e5df36deb463b33e9967a6f7 /Source/JavaScriptCore/jit/JITDivGenerator.h | |
parent | 32761a6cee1d0dee366b885b7b9c777e67885688 (diff) | |
download | WebKitGtk-tarball-master.tar.gz |
webkitgtk-2.16.5HEADwebkitgtk-2.16.5master
Diffstat (limited to 'Source/JavaScriptCore/jit/JITDivGenerator.h')
-rw-r--r-- | Source/JavaScriptCore/jit/JITDivGenerator.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/jit/JITDivGenerator.h b/Source/JavaScriptCore/jit/JITDivGenerator.h new file mode 100644 index 000000000..7a03cc7b7 --- /dev/null +++ b/Source/JavaScriptCore/jit/JITDivGenerator.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2015 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#pragma once + +#if ENABLE(JIT) + +#include "CCallHelpers.h" +#include "SnippetOperand.h" + +namespace JSC { + +class JITDivGenerator { +public: + JITDivGenerator(SnippetOperand leftOperand, SnippetOperand rightOperand, + JSValueRegs result, JSValueRegs left, JSValueRegs right, + FPRReg leftFPR, FPRReg rightFPR, GPRReg scratchGPR, FPRReg scratchFPR, + ArithProfile* arithProfile = nullptr) + : m_leftOperand(leftOperand) + , m_rightOperand(rightOperand) + , m_result(result) + , m_left(left) + , m_right(right) + , m_leftFPR(leftFPR) + , m_rightFPR(rightFPR) + , m_scratchGPR(scratchGPR) + , m_scratchFPR(scratchFPR) + , m_arithProfile(arithProfile) + { + ASSERT(!m_leftOperand.isConstInt32() || !m_rightOperand.isConstInt32()); + } + + void generateFastPath(CCallHelpers&); + + bool didEmitFastPath() const { return m_didEmitFastPath; } + CCallHelpers::JumpList& endJumpList() { return m_endJumpList; } + CCallHelpers::JumpList& slowPathJumpList() { return m_slowPathJumpList; } + +private: + void loadOperand(CCallHelpers&, SnippetOperand&, JSValueRegs opRegs, FPRReg destFPR); + + SnippetOperand m_leftOperand; + SnippetOperand m_rightOperand; + JSValueRegs m_result; + JSValueRegs m_left; + JSValueRegs m_right; + FPRReg m_leftFPR; + FPRReg m_rightFPR; + GPRReg m_scratchGPR; + FPRReg m_scratchFPR; + ArithProfile* m_arithProfile; + bool m_didEmitFastPath { false }; + + CCallHelpers::JumpList m_endJumpList; + CCallHelpers::JumpList m_slowPathJumpList; +}; + +} // namespace JSC + +#endif // ENABLE(JIT) |