charfi asma <charfiasma@xxxxxxxx> writes: > I have question concernais the constant propagation drawbacks. > I > red in one of the GCC summit paper that Constant propagation is limited > to create at most one clone of each function body and only in the case: > - the operand is the same constant in all calls to the function > - the operand would not be propagated without cloning because function might be called externally > This makes the interaction with the inliner suboptimal > > Could so explain more this idea? did this means that ipa-cp will produce only one version of a calle function? > Could so please give me an example that shows this drawbak? I think that the implementation of IPA CP has been improved since that paper was written. Ian
