74         "cost of importing it into a partition"
75         "exceeds the average cost of a partition by this factor; e;g. 2.0 "
144 /// has a small performance cost because if some computation/formatting is
217 /// Calculate the cost of each function in \p M
221 /// \param CostMap[out] Resulting Function -> Cost map.
222 /// \return The module's total cost.
237         auto Cost =  in calculateFunctionCosts()  local
239         assert(Cost != InstructionCost::getMax());  in calculateFunctionCosts()
240         // Assume expensive if we can't tell the cost of an instruction.  in calculateFunctionCosts()
242             Cost.getValue().value_or(TargetTransformInfo::TCC_Expensive);  in calculateFunctionCosts()
260   SML << "=> Total Module Cost: " << ModuleCost << '\n'  in calculateFunctionCosts()
432 /// \param ModuleCost Total cost of all functions in \p M.
433 /// \param FnCosts Map of Function -> Cost
445   // import cost exceeds this value, we will try to assign it to an existing  in doPartitioning()
448   // e.g. let two functions X and Y have a import cost of ~10% of the module, we  in doPartitioning()
469     // When two partitions have the same cost, assign to the one with the  in doPartitioning()
500     for (auto &[QueuePID, Cost] : reverse(BalancingQueue)) {  in doPartitioning()
506         SML << "[Updating P" << PID << " Cost]:" << Cost << " -> " << NewCost;  in doPartitioning()
507         if (Cost) {  in doPartitioning()
508           SML << " (" << unsigned(((float(NewCost) / Cost) - 1) * 100)  in doPartitioning()
513         Cost = NewCost;  in doPartitioning()
572       CostType Cost = 0;  in doPartitioning()  local
574         Cost += FnCosts.at(Fn);  in doPartitioning()
575       SML << "P" << Idx << " has a total cost of " << Cost << " ("  in doPartitioning()
576           << format("%0.2f", (float(Cost) / ModuleCost) * 100)  in doPartitioning()
658   // Start by calculating the cost of every function in the module, as well as  in splitAMDGPUModule()
659   // the module's overall cost.  in splitAMDGPUModule()
692     // Sort by total cost, and if the total cost is identical, sort  in splitAMDGPUModule()