/// isLiveIn - helper method that determines, from a VarInfo, if a register
/// is live into a block
-bool isLiveIn(LiveVariables::VarInfo& V, MachineBasicBlock* MBB) {
+static bool isLiveIn(LiveVariables::VarInfo& V, MachineBasicBlock* MBB) {
if (V.AliveBlocks.test(MBB->getNumber()))
return true;
/// isLiveOut - help method that determines, from a VarInfo, if a register is
/// live out of a block.
-bool isLiveOut(LiveVariables::VarInfo& V, MachineBasicBlock* MBB) {
+static bool isLiveOut(LiveVariables::VarInfo& V, MachineBasicBlock* MBB) {
if (MBB == V.DefInst->getParent() ||
V.UsedBlocks.test(MBB->getNumber())) {
for (std::vector<MachineInstr*>::iterator I = V.Kills.begin(),
/// isKillInst - helper method that determines, from a VarInfo, if an
/// instruction kills a given register
-bool isKillInst(LiveVariables::VarInfo& V, MachineInstr* MI) {
+static bool isKillInst(LiveVariables::VarInfo& V, MachineInstr* MI) {
return std::find(V.Kills.begin(), V.Kills.end(), MI) != V.Kills.end();
}