This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
So I am guessing the Felix version is lucky there are no gratuitous temporaries to be saved when this happens, and the C code is unlucky and there are.
Maybe someone who knows how the optimiser works can comment?
One problem with departing from the ABI even on a local level like this is that it wipes out lots of tools that depend on ABI compliance for the entire call chain. I suspect the overall gain is too small to be worth this hit.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |