Re: [PATCH GIT 0.6] make use of register variables & size_t

From: Matthias-Christian Ott <matthias.christian@tiscali.de>
Date: Apr 25, 2005, 12:56 UTC
Message-ID: <426CE904.9010505@tiscali.de>
In-Reply-To: <426CD703.5040009@exactcode.de>

Rene Rebe wrote:

Show 17 quoted lines

> Hi,
> 
> Matthias-Christian Ott wrote:
> 
>> The "git" didn't try store small variables, which aren't referenced, 
>> in the processor registers. It also didn't use the size_t type. I 
>> corrected a C++ style comment too.
> 
> 
> Well, modern compilers take register as a non-binding hint. Your 
> register storage specification for those loop counters will not make any 
> change. You have not looked into the resulting binary?
> 
> Also // is valid C99 ...
> 
> Yours,
>

But if you use only /* */ comments and there's a // comment it looks ugly :).

I've disassembled the code and it for me (I'm not a professional assembler coder) it looks like it's stored in a register because the ebp offsets are smaller and the gcc (4.0) wouldn't cause an error if you reference them.

Matthias-Christian Ott