From 6882a04fb36642862b11efe514251d32070c3d65 Mon Sep 17 00:00:00 2001 From: Konstantin Tokarev Date: Thu, 25 Aug 2016 19:20:41 +0300 Subject: Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443) Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f Reviewed-by: Konstantin Tokarev --- Source/JavaScriptCore/jit/CallFrameShuffleData.cpp | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Source/JavaScriptCore/jit/CallFrameShuffleData.cpp (limited to 'Source/JavaScriptCore/jit/CallFrameShuffleData.cpp') diff --git a/Source/JavaScriptCore/jit/CallFrameShuffleData.cpp b/Source/JavaScriptCore/jit/CallFrameShuffleData.cpp new file mode 100644 index 000000000..567202c15 --- /dev/null +++ b/Source/JavaScriptCore/jit/CallFrameShuffleData.cpp @@ -0,0 +1,68 @@ +/* + * 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. + */ + +#include "config.h" +#include "CallFrameShuffleData.h" + +#if ENABLE(JIT) + +#include "CCallHelpers.h" +#include "CodeBlock.h" + +namespace JSC { + +#if USE(JSVALUE64) + +void CallFrameShuffleData::setupCalleeSaveRegisters(CodeBlock* codeBlock) +{ + RegisterSet calleeSaveRegisters { RegisterSet::vmCalleeSaveRegisters() }; + RegisterAtOffsetList* registerSaveLocations = codeBlock->calleeSaveRegisters(); + + for (size_t i = 0; i < registerSaveLocations->size(); ++i) { + RegisterAtOffset entry { registerSaveLocations->at(i) }; + if (!calleeSaveRegisters.get(entry.reg())) + continue; + + VirtualRegister saveSlot { entry.offsetAsIndex() }; + registers[entry.reg()] + = ValueRecovery::displacedInJSStack(saveSlot, DataFormatJS); + } + + for (Reg reg = Reg::first(); reg <= Reg::last(); reg = reg.next()) { + if (!calleeSaveRegisters.get(reg)) + continue; + + if (registers[reg]) + continue; + + registers[reg] = ValueRecovery::inRegister(reg, DataFormatJS); + } +} + +#endif // USE(JSVALUE64) + +} // namespace JSC + +#endif // ENABLE(JIT) -- cgit v1.2.1