search for: availableregclass

...rget/TargetLowering.h @@ -958,6 +958,14 @@ protected: RegClassForVT[VT.SimpleTy] = RC; } + /// clearRegisterClasses - remove all register classes + void clearRegisterClasses() { + for (unsigned i = 0 ; i<array_lengthof(RegClassForVT); i++) + RegClassForVT[i] = 0; + while (!AvailableRegClasses.empty()) + AvailableRegClasses.pop_back(); + } + /// findRepresentativeClass - Return the largest legal super-reg register class /// of the register class for the specified type and its associated "cost". virtual std::pair<const TargetRegisterClass*, uint8_t> diff -...

Current ISelDagToDag is created once per module. The TargetLowering class is allocated there and register classes are added and the computeRegisterProperties is called. In order to switch back and forth between mips16 and mips32, I need to be able to reset what is done during computerRegisterProperties. Has anyone else looked into this for another port? Ideas? Mips16 is an instruction