228       unsigned STReg = getSTReg(RegNo);  in moveToTop()  local
240       BuildMI(*MBB, I, dl, TII->get(X86::XCH_F)).addReg(STReg);  in moveToTop()
247       unsigned STReg = getSTReg(RegNo);  in duplicateToTop()  local
250       BuildMI(*MBB, I, dl, TII->get(X86::LD_Frr)).addReg(STReg);  in duplicateToTop()
903   unsigned STReg    = getSTReg(FPRegNo);  in freeStackSlotBefore()  local
911       .addReg(STReg)  in freeStackSlotBefore()
1609       unsigned STReg = MO.getReg() - X86::FP0;  in handleSpecialFP()  local
1610       if (STReg >= 8)  in handleSpecialFP()
1622         STUses |= (1u << STReg);  in handleSpecialFP()
1626         STDefs |= (1u << STReg);  in handleSpecialFP()
1629         STClobbers |= (1u << STReg);  in handleSpecialFP()