Use movw/movt instead of constant pool on ARMv7

src/ia32/assembler-ia32-inl.h

Index: src/ia32/assembler-ia32-inl.h
diff --git a/src/ia32/assembler-ia32-inl.h b/src/ia32/assembler-ia32-inl.h
index 0b47748d6b464556c0383d5ac6d2ca1bb3e3d672..7fdf50c7a1e026cab03685ffbb7acccbea348c42 100644
--- a/src/ia32/assembler-ia32-inl.h
+++ b/src/ia32/assembler-ia32-inl.h
@@ -387,6 +387,11 @@ void Assembler::set_target_address_at(Address pc, Address target) {
 }
 
 
+Address Assembler::target_address_from_return_address(Address pc) {
+  return pc - kCallTargetAddressOffset;
+}
+
+
 Displacement Assembler::disp_at(Label* L) {
   return Displacement(long_at(L->pos()));
 }