Move backend specific files to separate directories.

src/cpu-ia32.cc

-// Copyright 2006-2008 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
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "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 THE COPYRIGHT
-// OWNER 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.
-
-// CPU specific code for ia32 independent of OS goes here.
-
-#include "v8.h"
-
-#include "cpu.h"
-#include "macro-assembler.h"
-
-namespace v8 { namespace internal {
-
-void CPU::Setup() {
-  CpuFeatures::Probe();
-}
-
-
-void CPU::FlushICache(void* start, size_t size) {
-  // No need to flush the instruction cache on Intel. On Intel instruction
-  // cache flushing is only necessary when multiple cores running the same
-  // code simultaneously. V8 (and JavaScript) is single threaded and when code
-  // is patched on an intel CPU the core performing the patching will have its
-  // own instruction cache updated automatically.
-
-  // If flushing of the instruction cache becomes necessary Windows have the
-  // API function FlushInstructionCache.
-}
-
-
-void CPU::DebugBreak() {
-#ifdef _MSC_VER
-  // To avoid Visual Studio runtime support the following code can be used
-  // instead
-  // __asm { int 3 }
-  __debugbreak();
-#else
-  asm("int $3");
-#endif
-}
-
-} }  // namespace v8::internal