[PATCH] D17872: [NVPTX] Add a truncate DAG node to some calls.

[Justin Lebar via llvm-commits]

jlebar added a comment.

In http://reviews.llvm.org/D17872#388029, @jholewinski wrote:

> That's for... hmm... I don't know.  I don't see how that block would be executed. The call lowering code has always been a mess, unfortunately.


Hey, a real, live Chesterton's Fence!

In the interest of not changing things that I don't understand, I think I'll leave out the needTruncate on this path, and add a comment saying we may need it, if we can figure out what the branch is for at all.


http://reviews.llvm.org/D17872