search for: numvregs

...tRegInfo.size(). The virtual registers are defined by the range: [MRegisterInfo::FirstVirtualRegister, MRegisterInfo::FirstVirtualRegister+VirtRegInfo.size()] Alternatively, the same information can be obtained from the SSARegMap for the function: given a MachineFunction, use something like: NumVRegs = MF.getSSARegMap()->getLastVirtReg()+1; These also start from MRegisterInfo::FirstVirtualRegister. > But LiveIntervalAnalysis.h is not in > "include/llvm/CodeGen", so I have to either include it by: > > #include "../../llvm/lib/CodeGen/LiveIntervalAnalysis.h"...

One of my pass requires LiveIntervals to build the interference graph, because LiveVariables do not provide an interface to iterate through all viritual registers. But LiveIntervalAnalysis.h is not in "include/llvm/CodeGen", so I have to either include it by: #include "../../llvm/lib/CodeGen/LiveIntervalAnalysis.h" or point my project include path to

...isters are defined by the range: > [MRegisterInfo::FirstVirtualRegister, > MRegisterInfo::FirstVirtualRegister+VirtRegInfo.size()] > > Alternatively, the same information can be obtained from the SSARegMap for > the function: given a MachineFunction, use something like: > > NumVRegs = MF.getSSARegMap()->getLastVirtReg()+1; > > These also start from MRegisterInfo::FirstVirtualRegister. I'm not sure if these two methods work because after the live intervals are joined, some virtual registers are coalesced, and their indices are invalidated. It's no longer that...

...range: >> [MRegisterInfo::FirstVirtualRegister, >> MRegisterInfo::FirstVirtualRegister+VirtRegInfo.size()] >> >> Alternatively, the same information can be obtained from the SSARegMap for >> the function: given a MachineFunction, use something like: >> >> NumVRegs = MF.getSSARegMap()->getLastVirtReg()+1; >> >> These also start from MRegisterInfo::FirstVirtualRegister. > > I'm not sure if these two methods work because after the live > intervals are joined, some virtual registers are coalesced, and their > indices are invalidate...