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authorLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
commit32761a6cee1d0dee366b885b7b9c777e67885688 (patch)
treed6bec92bebfb216f4126356e55518842c2f476a1 /Source/JavaScriptCore/jit/JITBitAndGenerator.cpp
parenta4e969f4965059196ca948db781e52f7cfebf19e (diff)
downloadWebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz
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Diffstat (limited to 'Source/JavaScriptCore/jit/JITBitAndGenerator.cpp')
-rw-r--r--Source/JavaScriptCore/jit/JITBitAndGenerator.cpp85
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diff --git a/Source/JavaScriptCore/jit/JITBitAndGenerator.cpp b/Source/JavaScriptCore/jit/JITBitAndGenerator.cpp
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--- a/Source/JavaScriptCore/jit/JITBitAndGenerator.cpp
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-/*
- * 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 "JITBitAndGenerator.h"
-
-#if ENABLE(JIT)
-
-namespace JSC {
-
-void JITBitAndGenerator::generateFastPath(CCallHelpers& jit)
-{
-#if USE(JSVALUE64)
- ASSERT(m_scratchGPR != InvalidGPRReg);
- ASSERT(m_scratchGPR != m_left.payloadGPR());
- ASSERT(m_scratchGPR != m_right.payloadGPR());
-#else
- UNUSED_PARAM(m_scratchGPR);
-#endif
-
- ASSERT(!m_leftOperand.isConstInt32() || !m_rightOperand.isConstInt32());
-
- m_didEmitFastPath = true;
-
- if (m_leftOperand.isConstInt32() || m_rightOperand.isConstInt32()) {
- JSValueRegs var = m_leftOperand.isConstInt32() ? m_right : m_left;
- SnippetOperand& constOpr = m_leftOperand.isConstInt32() ? m_leftOperand : m_rightOperand;
-
- // Try to do intVar & intConstant.
- m_slowPathJumpList.append(jit.branchIfNotInt32(var));
-
- jit.moveValueRegs(var, m_result);
- if (constOpr.asConstInt32() != static_cast<int32_t>(0xffffffff)) {
-#if USE(JSVALUE64)
- jit.and64(CCallHelpers::Imm32(constOpr.asConstInt32()), m_result.payloadGPR());
- if (constOpr.asConstInt32() >= 0)
- jit.or64(GPRInfo::tagTypeNumberRegister, m_result.payloadGPR());
-#else
- jit.and32(CCallHelpers::Imm32(constOpr.asConstInt32()), m_result.payloadGPR());
-#endif
- }
-
- } else {
- ASSERT(!m_leftOperand.isConstInt32() && !m_rightOperand.isConstInt32());
-
- // Try to do intVar & intVar.
-#if USE(JSVALUE64)
- jit.move(m_left.payloadGPR(), m_scratchGPR);
- jit.and64(m_right.payloadGPR(), m_scratchGPR);
- m_slowPathJumpList.append(jit.branchIfNotInt32(m_scratchGPR));
- jit.move(m_scratchGPR, m_result.payloadGPR());
-#else
- m_slowPathJumpList.append(jit.branchIfNotInt32(m_left));
- m_slowPathJumpList.append(jit.branchIfNotInt32(m_right));
- jit.moveValueRegs(m_left, m_result);
- jit.and32(m_right.payloadGPR(), m_result.payloadGPR());
-#endif
- }
-}
-
-} // namespace JSC
-
-#endif // ENABLE(JIT)