Remove a bunch of OS(MACOSX) code

sky/engine/wtf/text/ASCIIFastPath.h

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 10 matching lines @@
 
 #ifndef ASCIIFastPath_h
 #define ASCIIFastPath_h
 
 #include "wtf/Alignment.h"
 #include "wtf/CPU.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/unicode/Unicode.h"
 #include <stdint.h>
 
-#if OS(MACOSX) && (CPU(X86) || CPU(X86_64))
-#include <emmintrin.h>
-#endif
-
 namespace WTF {
 
 // Assuming that a pointer is the size of a "machine word", then
 // uintptr_t is an integer type that is also a machine word.
 typedef uintptr_t MachineWord;
 const uintptr_t machineWordAlignmentMask = sizeof(MachineWord) - 1;
 
 inline bool isAlignedToMachineWord(const void* pointer)
 {
     return !(reinterpret_cast<uintptr_t>(pointer) & machineWordAlignmentMask);
@@ skipping 52 matching lines @@
         allCharBits |= *characters;
         ++characters;
     }
 
     MachineWord nonASCIIBitMask = NonASCIIMask<sizeof(MachineWord), CharacterType>::value();
     return !(allCharBits & nonASCIIBitMask);
 }
 
 inline void copyLCharsFromUCharSource(LChar* destination, const UChar* source, size_t length)
 {
-#if OS(MACOSX) && (CPU(X86) || CPU(X86_64))
-    const uintptr_t memoryAccessSize = 16; // Memory accesses on 16 byte (128 bit) alignment
-    const uintptr_t memoryAccessMask = memoryAccessSize - 1;
-
-    size_t i = 0;
-    for (;i < length && !isAlignedTo<memoryAccessMask>(&source[i]); ++i) {
-        ASSERT(!(source[i] & 0xff00));
-        destination[i] = static_cast<LChar>(source[i]);
-    }
-
-    const uintptr_t sourceLoadSize = 32; // Process 32 bytes (16 UChars) each iteration
-    const size_t ucharsPerLoop = sourceLoadSize / sizeof(UChar);
-    if (length > ucharsPerLoop) {
-        const size_t endLength = length - ucharsPerLoop + 1;
-        for (; i < endLength; i += ucharsPerLoop) {
-#if ENABLE(ASSERT)
-            for (unsigned checkIndex = 0; checkIndex < ucharsPerLoop; ++checkIndex)
-                ASSERT(!(source[i+checkIndex] & 0xff00));
-#endif
-            __m128i first8UChars = _mm_load_si128(reinterpret_cast<const __m128i*>(&source[i]));
-            __m128i second8UChars = _mm_load_si128(reinterpret_cast<const __m128i*>(&source[i+8]));
-            __m128i packedChars = _mm_packus_epi16(first8UChars, second8UChars);
-            _mm_storeu_si128(reinterpret_cast<__m128i*>(&destination[i]), packedChars);
-        }
-    }
-
-    for (; i < length; ++i) {
-        ASSERT(!(source[i] & 0xff00));
-        destination[i] = static_cast<LChar>(source[i]);
-    }
-#elif COMPILER(GCC) && CPU(ARM_NEON) && !(CPU(BIG_ENDIAN) || CPU(MIDDLE_ENDIAN)) && defined(NDEBUG)
+#if COMPILER(GCC) && CPU(ARM_NEON) && !(CPU(BIG_ENDIAN) || CPU(MIDDLE_ENDIAN)) && defined(NDEBUG)
     const LChar* const end = destination + length;
     const uintptr_t memoryAccessSize = 8;
 
     if (length >= (2 * memoryAccessSize) - 1) {
         // Prefix: align dst on 64 bits.
         const uintptr_t memoryAccessMask = memoryAccessSize - 1;
         while (!isAlignedTo<memoryAccessMask>(destination))
             *destination++ = static_cast<LChar>(*source++);
 
         // Vector interleaved unpack, we only store the lower 8 bits.
@@ skipping 14 matching lines @@
     for (size_t i = 0; i < length; ++i) {
         ASSERT(!(source[i] & 0xff00));
         destination[i] = static_cast<LChar>(source[i]);
     }
 #endif
 }
 
 } // namespace WTF
 
 #endif // ASCIIFastPath_h