[PATCH] D122082: Add DXIL Bitcode Writer and DXIL testing

[Chris Bieneman via Phabricator via llvm-commits]

beanz added a comment.

In D122082#3433583 <https://reviews.llvm.org/D122082#3433583>, @nikic wrote:

> The bit I'm specifically concerned about is that you can't insert bitcasts in the prepare pass, as those would always get folded away. But I guess you can still materialize them directly during bitcode writing.

We only need to insert those because of how instructions are numbered in the bitcode writer. I don't _think_ we will need them in the ConstantExprs, but I may not be fully thinking that through. If we needed to materialize them in the bitwriter we can do that (especially now that we're forking the whole thing).


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https://reviews.llvm.org/D122082