Add missing #ifdef to lithium-gap-resolver-ia32.cc

src/ia32/lithium-gap-resolver-ia32.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 //       notice, this list of conditions and the following disclaimer.
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 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
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 //       from this software without specific prior written permission.
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 #include "v8.h"
 
+#if defined(V8_TARGET_ARCH_IA32)
+
 #include "ia32/lithium-gap-resolver-ia32.h"
 #include "ia32/lithium-codegen-ia32.h"
 
 namespace v8 {
 namespace internal {
 
 LGapResolver::LGapResolver(LCodeGen* owner)
     : cgen_(owner),
       moves_(32),
       source_uses_(),
@@ skipping 413 matching lines @@
     // Compute those counts now.
     source_uses_[source->index()] = CountSourceUses(source);
   } else if (destination->IsRegister()) {
     source_uses_[destination->index()] = CountSourceUses(destination);
   }
 }
 
 #undef __
 
 } }  // namespace v8::internal
+
+#endif  // V8_TARGET_ARCH_IA32