[PATCH] Fix PR 23525 - Separate header mass propagation in irregular loops.

[Diego Novillo]

On Fri, Jun 12, 2015 at 4:11 PM, Duncan P. N. Exon Smith <
dexonsmith at apple.com> wrote:

>
> Okay, I finally caught up with the rest of the thread.  Looks like
> David noticed the same thing I did.  (Sorry for my delay coming back to
> this.)
>
> I agree that doing it separately is fine, as long as there aren't any
> regressions in LNT.  I doubt there will be, since I don't think we have
> much irreducible control flow there.


Been running tests the last couple of days. SPEC, our internal benchmarks
and LNT. No regressions anywhere. Irreducible control flow is rare, so I
wasn't expecting any difference.

If you're OK with this, I'll address the changes you wanted and commit.
I'll follow up with the patch to also account for incoming edge masses.


Diego.
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