[patch] i386.c string alignment - no alignment for < 32 bytes, else to 32 bytes

[Chris Sears]

John

unfortunately, I'm in license limbo with the Intel C++ compiler.
Tomorrow I will compile with it and find out what it does.

I assume since you referred to the IA Optimization manual, you would
accept their compiler as a piece of evidence.  Intel documentation,
since there are AMD's etc out there, has its fair share of mistakes
and false leads.  Better to see what Intel does rather than says.

> > Let's take the second case first.  Applying this rule to *all*
> 32-byte
> > strings is trading off a trivial amount of optimization for memory.
> > These constants are not dynamically allocated objects, they are
> static
> > constants rarely used.
> 
> It depends on the application.

I'm sure there is an exception but I'm straining to imagine it.
Remember declarations are handled seperately.
I think you are mistaken here and it doesn't depend on the application.
It is just wasted space with no performance benefit.

> > It is just wasted space.
> 
> -Os says to favor space for time.

-Os doesn't affect this.


Chris Sears
cbsears_sf@yahoo.com


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