Subject: Re: [sv-ec] ERR-4
From: Shalom Bresticker (Shalom.Bresticker@motorola.com)
Date: Mon Aug 18 2003 - 00:06:36 PDT
Arturo,
I believe this is contrary to IEEE 1364-2001.
The automatic variable j belongs to the automatic task loop_fork.
There is only one copy of it, referenced by the forked processes.
The 1364 ETF discussed this in issue #281.
Shalom
Arturo Salz wrote:
> Lifetime of automatic variables in fork/join_none I propose that the following
> be added to Section 9.6
> -------------------------------------------------------------------------------
> Automatic variables in the scope enclosing a fork-join_none or fork-join_any
> shall be copied on fork of each process that references those variables. Only
> the variables actually used by a sub-process need to be copied, not all
> automatic variables. For example:
>
> task automatic loop_fork();
> for( int j = 1; j <= 3; ++j )
> fork
> $display( "%0d", j );
> join_none
> endtask
>
> The example above displays 123 (not 333).
> -------------------------------------------------------------------------------
> Arturo
-- Shalom Bresticker Shalom.Bresticker@motorola.com Design & Reuse Methodology Tel: +972 9 9522268 Motorola Semiconductor Israel, Ltd. Fax: +972 9 9522890 POB 2208, Herzlia 46120, ISRAEL Cell: +972 50 441478
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