[PATCH] D35438: CodeGen: Ensure there is basic block when performing address space cast

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl added a comment.

In https://reviews.llvm.org/D35438#810234, @rjmccall wrote:

> Hmm.  It doesn't seem unreasonable for this to require an insertion point as a precondition.  In what situation do we emit addrspace casts after a return?


When the alloca address space is not zero and we declare an automatic variable after return.  Since we need to cast the automatic variable to default address space, we need to have a new basic block.


https://reviews.llvm.org/D35438