[PATCH] D65597: WIP: Builtins: Start adding half versions of math builtins

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

In N2405 (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2405.pdf), these are called `truncf16`, `cosf16`, etc., which I think is appropriate.


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https://reviews.llvm.org/D65597