[LLVMdev] Inserting move instruction

[Fernando Magno Quintao Pereira]

Dear llvmers,

    I am trying to insert a move instruction where both source and
destination registers are physical registers. How is the code for this?
I tried this one here:

void PhiDeconstruction_Fer::add_move (
                                       MachineFunction & mf,
                                       MachineBasicBlock & mbb,
                                       unsigned src,
                                       unsigned dst
                                     )
{
    MachineBasicBlock::iterator iter = mbb.getFirstTerminator();

    const TargetRegisterClass *rc = mf.getSSARegMap()->getRegClass(dst);

    const MRegisterInfo * reg_info = mf.getTarget().getRegisterInfo();

    reg_info->copyRegToReg(mbb, iter, dst, src, rc);
}

But the getRegClass method seems to expect a virtual register. Could
someone fix this code for me? I could not find an example in the source of
LLVM.

Thank you very much,

Fernando