[PATCH] propagate IR-level fast-math-flags to DAG nodes

[Sanjay Patel]

Thanks, Michael! I would add you to the reviewers on Phab, but I didn't see
your name there.

On Wed, Apr 8, 2015 at 11:03 PM, Michael Ilseman <milseman at apple.com> wrote:

>
> Great! Note that you’ll be able to use those to replace the functionality
> of -enable-unsafe-fp-math, ideally dropping the global bool and auditing
> all the existing unsafe DAG combines to use the new flags.
>
>
Yes, that's the final goal. It was about 5 months ago when Hal pointed out
to me that were about ~50 backend locations that rely on the global or
function-level fast-math attr. It's probably grown since then, but I'd like
to get it all cleaned up.
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