DavidKreitzer added a comment. This looks good to me, Craig. I am not worried about the constant folding issue, as I think constant folding these conversion intrinsics (assuming round-to-nearest) is a perfectly valid optimization in the absence of FENV_ACCESS. (FWIW, we don't do this constant folding in icc, but that is only because we have never gotten around to implementing it.) I am also not worried about the spurious 'inexact' exceptions that the changes to the mask intrinsics will cause.
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