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Re: Sequenced-Before for g++ 4.1.2?

From: Ian Lance Taylor <iant at google dot com>
To: Hei Chan <structurechart at yahoo dot com>
Cc: "gcc-help\ at gcc dot gnu dot org" <gcc-help at gcc dot gnu dot org>
Date: Mon, 16 Apr 2012 21:30:58 -0700
Subject: Re: Sequenced-Before for g++ 4.1.2?
References: <1334300105.51899.YahooMailNeo@web36504.mail.mud.yahoo.com> <mcraa2e987a.fsf@dhcp-172-18-216-180.mtv.corp.google.com> <1334555443.54000.YahooMailNeo@web36504.mail.mud.yahoo.com> <mcripgzws9k.fsf@dhcp-172-18-216-180.mtv.corp.google.com> <1334631810.73884.YahooMailNeo@web36508.mail.mud.yahoo.com>

Hei Chan <structurechart@yahoo.com> writes:

> I probably misinterpreted what you meant about "globally visible
> memory".Â I thought you meant that all threads would see the same
> copy.Â What does "globally visible memory" refer to?

Yes, sorry, that was kind of ambiguous.  When I wrote "globally visible
memory" I meant a global variable or a memory location to which a global
variable points, perhaps indirectly.  E.g., if g is a global variable,
then g[1]->p1->p2 counts as globally visible.

Ian

References:
- Sequenced-Before for g++ 4.1.2?
  - From: Hei Chan
- Re: Sequenced-Before for g++ 4.1.2?
  - From: Ian Lance Taylor
- Re: Sequenced-Before for g++ 4.1.2?
  - From: Hei Chan
- Re: Sequenced-Before for g++ 4.1.2?
  - From: Ian Lance Taylor
- Re: Sequenced-Before for g++ 4.1.2?
  - From: Hei Chan

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