yaxunl added a comment. >> It seems the casting from a pointer to different address space is not >> affected by this change. When a null pointer is casted to different address >> space, it is casted the same way as an ordinary pointer, e.g. by >> addrspacecast. > > You mean, the code-generation for that knows about your special null pointer > representation? That is confusing.
The null pointer is represented in a new way, but the new representation has the same type as before. For example, a null pointer in addr space 0 used to be `i8 *null`, now it becomes `addrspacecast i8 addrspace(4)* null to i8*`. It is still of type i8*, so nothing is changed about casting a pointer to a different address space. https://reviews.llvm.org/D26196 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
