CMM-to-ASM: Register allocation wierdness

Simon Peyton Jones simonpj at
Sat Jun 18 13:01:33 UTC 2016

Takenobu, and others
Thanks.  Several people have mentioned that email from me is ending up in spam.
It turns out to be a fault in the mailman setup, which was mis-forwarding my email.
Apparently it is fixed now.  If THIS message ends up in spam with a complaint like that below, could you let me know?

From: Takenobu Tani [mailto:takenobu.hs at]
Sent: 18 June 2016 08:18
To: Simon Peyton Jones <simonpj at>
Subject: Re: CMM-to-ASM: Register allocation wierdness

Hi Simon,

I report to you about your mails.

Maybe, your mails don't reach to Gmail users.
I don't know why, but your mails have been distributed to "Spam" folder in Gmail.

Gmail displays following message:
  "Why is this message in Spam? It has a from address in<> but has failed<>'s required tests for authentication."

For reference, I attach the screen of my Gmail of spam folder.
Recent your mails have been detected as spam.
Please check your mail settings.


2016-06-16 21:10 GMT+09:00 Simon Peyton Jones <simonpj at<mailto:simonpj at>>:
| All-in-all, the graph coloring allocator is in great need of some love;
| Harendra, perhaps you'd like to have a try at dusting it off and perhaps
| look into why it regresses in compiler performance? It would be great if
| we could use it by default.

I second this.   Volunteers are sorely needed.

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