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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
commit | 32761a6cee1d0dee366b885b7b9c777e67885688 (patch) | |
tree | d6bec92bebfb216f4126356e55518842c2f476a1 /Source/JavaScriptCore/jit/JITNegGenerator.cpp | |
parent | a4e969f4965059196ca948db781e52f7cfebf19e (diff) | |
download | WebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz |
webkitgtk-2.4.11webkitgtk-2.4.11
Diffstat (limited to 'Source/JavaScriptCore/jit/JITNegGenerator.cpp')
-rw-r--r-- | Source/JavaScriptCore/jit/JITNegGenerator.cpp | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/Source/JavaScriptCore/jit/JITNegGenerator.cpp b/Source/JavaScriptCore/jit/JITNegGenerator.cpp deleted file mode 100644 index c6851676d..000000000 --- a/Source/JavaScriptCore/jit/JITNegGenerator.cpp +++ /dev/null @@ -1,72 +0,0 @@ -/* - * 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 "JITNegGenerator.h" - -#if ENABLE(JIT) - -namespace JSC { - -void JITNegGenerator::generateFastPath(CCallHelpers& jit) -{ - ASSERT(m_scratchGPR != m_src.payloadGPR()); - ASSERT(m_scratchGPR != m_result.payloadGPR()); - ASSERT(m_scratchGPR != InvalidGPRReg); -#if USE(JSVALUE32_64) - ASSERT(m_scratchGPR != m_src.tagGPR()); - ASSERT(m_scratchGPR != m_result.tagGPR()); -#endif - - m_didEmitFastPath = true; - - jit.moveValueRegs(m_src, m_result); - CCallHelpers::Jump srcNotInt = jit.branchIfNotInt32(m_src); - - // -0 should produce a double, and hence cannot be negated as an int. - // The negative int32 0x80000000 doesn't have a positive int32 representation, and hence cannot be negated as an int. - m_slowPathJumpList.append(jit.branchTest32(CCallHelpers::Zero, m_src.payloadGPR(), CCallHelpers::TrustedImm32(0x7fffffff))); - - jit.neg32(m_result.payloadGPR()); -#if USE(JSVALUE64) - jit.boxInt32(m_result.payloadGPR(), m_result); -#endif - m_endJumpList.append(jit.jump()); - - srcNotInt.link(&jit); - m_slowPathJumpList.append(jit.branchIfNotNumber(m_src, m_scratchGPR)); - - // For a double, all we need to do is to invert the sign bit. -#if USE(JSVALUE64) - jit.move(CCallHelpers::TrustedImm64((int64_t)(1ull << 63)), m_scratchGPR); - jit.xor64(m_scratchGPR, m_result.payloadGPR()); -#else - jit.xor32(CCallHelpers::TrustedImm32(1 << 31), m_result.tagGPR()); -#endif -} - -} // namespace JSC - -#endif // ENABLE(JIT) |