I'm not sure if Cliff can post to this mailing lists, so I am
forwarding his response.
Bill
Begin forwarded message:
> From: Cliff Click <cliffc@azulsystems.com>
> Date: May 28, 2004 11:11:56 AM EDT
> To: Bill Pugh <pugh@cs.umd.edu>
> Cc: JSR133 <jsr-133-eg@jcp.org>, "javamemorymodel-cs.umd.edu"
> <javamemorymodel@cs.umd.edu>, bodik@cs.berkeley.edu
> Subject: Re: Performing speculative writes ahead of loops that may not
> terminate
>
> No compiler I write will do so, this was beat into my head with this
> 60's era example:
>
> while( ! Big_Red_Button ) {
> /* do nothing */
> }
> fire_all_missles = true;
>
> No exceptions in the loop, no reads of fire_all_missles,
> but premature writes to fire_all_missles is Bad (tm).
>
> Cliff
>
> --
> Cliff Click, PhD cliffc@acm.org
> High Performance Java VM Design and Implementation
> Azul Systems 650-230-6512
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