Subj : Re: What does Memory Barriers mean ??
To   : comp.programming.threads
From : Alexander Terekhov
Date : Mon Jan 10 2005 02:15 pm


David Schwartz wrote:
[...]
>     Nonsense. Few people would willingly use such a compiler, and compilers
> like VC++ and gcc are not compilers like that. If your code/compiler works
> at one optimization level and not another, there's either a bug in your code
> or a bug in the compiler.

Single-threaded "observable behavior" aside for a moment, neither 
gcc not VC++ have any meaningful MT memory model that would allow 
programmers express memory isolation and reordering constrains 
imposed on compiler and/or "hardware." So in practice, it all 
"works" by accident, so to say.

regards,
alexander.

.