Fix issues with Arm's use of embedded constant pools

src/x87/assembler-x87.cc

 // Copyright (c) 1994-2006 Sun Microsystems 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:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 245 matching lines @@
 
 
 void Assembler::Align(int m) {
   DCHECK(base::bits::IsPowerOfTwo32(m));
   int mask = m - 1;
   int addr = pc_offset();
   Nop((m - (addr & mask)) & mask);
 }
 
 
+void Assembler::DataAlign(int m) {
+  DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m));
+  while ((pc_offset() & (m - 1)) != 0) {
+    db(0);
+  }
+}
+
+
 bool Assembler::IsNop(Address addr) {
   Address a = addr;
   while (*a == 0x66) a++;
   if (*a == 0x90) return true;
   if (a[0] == 0xf && a[1] == 0x1f) return true;
   return false;
 }
 
 
 void Assembler::Nop(int bytes) {
@@ skipping 1799 matching lines @@
     fflush(coverage_log);
   }
 }
 
 #endif
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87