search for: regusageinfocalculator

...gt; place to achieve this without affecting unrelated things like parameter and > return value handling which would be part of the calling convention. > Hello Matthias, As per our discussion, the above trick will make sure that there is no callee saved registers and also we have thought that RegUsageInfoCalculator.cpp is having regmask that will make caller to save restore registers if both callee and caller is using any common register but this would require following change in RegUsageInfoCalculator.cpp : if (!F->hasLocalLinkage() || F->hasAddressTaken()) { const uint32_t *CallPreservedMask =...

Dear Community, To improve current interprocedural register allocation (IPRA) , we have planned to set callee saved registers to none for local functions, currently I am doing it in following way: if (F->hasLocalLinkage() && !F->hasAddressTaken()) { DEBUG(dbgs() << "Function has LocalLinkage \n"); F->setCallingConv(CallingConv::GHC); } but we think threre