Revert r10908 due to flakiness and crashes.

src/platform-posix.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * 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
@@ skipping 35 matching lines @@
 
 #undef MAP_TYPE
 
 #if defined(ANDROID) && !defined(V8_ANDROID_LOG_STDOUT)
 #define LOG_TAG "v8"
 #include <android/log.h>
 #endif
 
 #include "v8.h"
 
-#include "codegen.h"
 #include "platform.h"
 
 namespace v8 {
 namespace internal {
 
 
 // Maximum size of the virtual memory.  0 means there is no artificial
 // limit.
 
 intptr_t OS::MaxVirtualMemory() {
@@ skipping 53 matching lines @@
 
 
 // ----------------------------------------------------------------------------
 // Math functions
 
 double modulo(double x, double y) {
   return fmod(x, y);
 }
 
 
-static Mutex* transcendental_function_mutex = OS::CreateMutex();
-
-#define TRANSCENDENTAL_FUNCTION(name, type)                   \
-static TranscendentalFunction fast_##name##_function = NULL;  \
-double fast_##name(double x) {                                \
-  if (fast_##name##_function == NULL) {                       \
-    ScopedLock lock(transcendental_function_mutex);           \
-    TranscendentalFunction temp =                             \
-        CreateTranscendentalFunction(type);                   \
-    MemoryBarrier();                                          \
-    fast_##name##_function = temp;                            \
-  }                                                           \
-  return (*fast_##name##_function)(x);                        \
-}
-
-TRANSCENDENTAL_FUNCTION(sin, TranscendentalCache::SIN)
-TRANSCENDENTAL_FUNCTION(cos, TranscendentalCache::COS)
-TRANSCENDENTAL_FUNCTION(tan, TranscendentalCache::TAN)
-TRANSCENDENTAL_FUNCTION(log, TranscendentalCache::LOG)
-
-#undef TRANSCENDENTAL_FUNCTION
-
-
 double OS::nan_value() {
   // NAN from math.h is defined in C99 and not in POSIX.
   return NAN;
 }
 
 
 // ----------------------------------------------------------------------------
 // POSIX date/time support.
 //
 
@@ skipping 352 matching lines @@
   return ntohl(value);
 }
 
 
 Socket* OS::CreateSocket() {
   return new POSIXSocket();
 }
 
 
 } }  // namespace v8::internal