Feng LI <nemoking...@gmail.com> writes: > Hi Ian, > > 2012/4/22 Ian Lance Taylor <i...@google.com>: >> Feng LI <nemoking...@gmail.com> writes: >> >>> Yes, you are right. But how could I reference to a backend defined builtin >>> function in the middle end (I need to generate the builtin function in the >>> middle end and expand it in x86 backend)? >> >> If the function doesn't have a machine-independent definition, then use >> a target hook. > > Then I remove the duplicate builtin definition in x86 backend. > I define the builtin function with built_in_class as BUILT_IN_MD in > builtins.def.
Sorry, I meant use a target hook to actually generate the call expression. The target hook can refer to the target-specific builtin function. Ian
