Anastasia added inline comments.

================
Comment at: lib/CodeGen/CGExpr.cpp:957
 
-        return Builder.CreateBitCast(Addr, ConvertType(E->getType()));
+        return Builder.CreatePointerBitCastOrAddrSpaceCast(
+            Addr, ConvertType(E->getType()));
----------------
yaxunl wrote:
> Better assert that only CK_AddressSpaceConversion allows different addr 
> spaces in target type.
It seems for consistency then we would have to assert for both different ASes 
in non-`addrspacecast` case and equivalent ASes in the other case.

As condition becomes complicated then, I could as well split into either 
creating `bitcast` or `addrspacecast` explicitly at a cost of one simple check 
in the return statement but that would be in release build too. 


https://reviews.llvm.org/D37804



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