Fwd: Possible regression in DF analysis

[Claudiu Zissulescu Ianculescu via Gcc]

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-- Forwarded message -
From: Claudiu Zissulescu Ianculescu 
Date: Tue, Dec 20, 2022 at 2:31 PM
Subject: Re: Possible regression in DF analysis
To: Jeff Law 


Hi Jeff,

> Or is that the core of the problem -- that life analysis is inaccurate
> or unavailable?
>
The life analysis is not accurate/missing and loop-doloop check is not
performed, leading in inserting the doloop end pattern when it
shouldn't.
The issue is how df_analyse_loop sets the df problem subset, not
including the destination BB from the exit edges of a loop. I am
looking now how loop_post_order_compute and
loop_inverted_post_order_compute can include those missing BBs too.

Thanks,
Claudiu

Gaius Mulley appointed Modula-2 front-end maintainer

[David Edelsohn via Gcc]

I am pleased to announce that the GCC Steering Committee has appointed
Gaius Mulley as Modula-2 front-end maintainer.

Please join me in congratulating Gaius on his new role.

Gaius, please update your listings in the MAINTAINERS file.

Happy Holidays!
Happy hacking!
David

Philip Herron and Arthur Cohen appointed Rust front-end maintainers

[David Edelsohn via Gcc]

I am pleased to announce that the GCC Steering Committee has appointed
Philip Herron and Arthur Cohen as Rust front-end maintainers.

Please join me in congratulating Philip and Arthur on their new role.

Philip and Arthur, please update your listings in the MAINTAINERS file.

Happy holidays!
Happy hacking!
David