[arm] Fix vmov immediate for ARMv6.

src/arm/assembler-arm.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 2578 matching lines @@
     DoubleAsTwoUInt32(imm, &lo, &hi);
 
     if (lo == hi) {
       // Move the low and high parts of the double to a D register in one
       // instruction.
       mov(ip, Operand(lo));
       vmov(dst, ip, ip);
     } else if (scratch.is(no_reg)) {
       mov(ip, Operand(lo));
       vmov(dst, VmovIndexLo, ip);
-      if ((lo & 0xffff) == (hi & 0xffff)) {
+      if (((lo & 0xffff) == (hi & 0xffff)) &&
+          CpuFeatures::IsSupported(ARMv7)) {
         movt(ip, hi >> 16);
       } else {
         mov(ip, Operand(hi));
       }
       vmov(dst, VmovIndexHi, ip);
     } else {
       // Move the low and high parts of the double to a D register in one
       // instruction.
       mov(ip, Operand(lo));
       mov(scratch, Operand(hi));
@@ skipping 1502 matching lines @@
       assm->instr_at_put(
           rinfo.pc(), Assembler::SetLdrRegisterImmediateOffset(instr, offset));
     }
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM