StÃphane FORNENGO <sfornengo@xxxxxxxxx> writes: > Is the following idea possible ? > take for example the strcmp function with the standard following code: ... > this usages could be detect at compile time and the function code > greatly optimized knowing this information ! Yes, this is possible, and the x86 backend already uses this information, when available, when selecting the strcmp strategy. This kind of optimization is inherently machine dependent; I'm not sure whether any other backends implement it. Ian