Re: [Tinycc-devel] What is size overhead of compiled code?

[Fabrice Bellard]

Note also that the TCC linker does not remove unused object files (given 
the current architecture it would be simpler to remove unused code at 
the variable or function level, but it would cause compatibility 
problems with GCC compiled object or library files).

So a fair comparison with GCC should be made only on the object files 
with the 'size' command.

Fabrice.

Philippe Ribet wrote:
> Looks like my last mail failed.
>
> Question was:
> What I was wondering, I am interested in knowing how much bigger
> the generated code is. I realise that all the optimisations are not
> there.
> Can anyone come up with a ballpark estimate, in percentage?
>
> Test with gcc 2.95.4 on a large code. Executable size in bytes
> tcc: 2128340
> gcc -O0: 2210099
> gcc -O1: 1699847
> gcc -O2: 1692071
> gcc -O3: 2931009
>
> After strip:
> tcc: 2128212
> gcc -O0: 1837488
> gcc -O1: 1327304
> gcc -O2: 1319528
> gcc -O3: 2558664