///
SparseBitVector<> AliveBlocks;
- /// NumUses - Number of uses of this register across the entire function.
- ///
- unsigned NumUses;
-
/// Kills - List of MachineInstruction's which are the last use of this
/// virtual register (kill it) in their basic block.
///
std::vector<MachineInstr*> Kills;
- VarInfo() : NumUses(0) {}
-
/// removeKill - Delete a kill corresponding to the specified
/// machine instruction. Returns true if there was a kill
/// corresponding to this instruction, false otherwise.
unsigned BBNum = MBB->getNumber();
VarInfo& VRInfo = getVarInfo(reg);
- VRInfo.NumUses++;
// Check to see if this basic block is already a kill block.
if (!VRInfo.Kills.empty() && VRInfo.Kills.back()->getParent() == MBB) {
LiveVariables::VarInfo &VI = LV->getVarInfo(IncomingReg);
// Increment use count of the newly created virtual register.
- VI.NumUses++;
LV->setPHIJoin(IncomingReg);
// When we are reusing the incoming register, it may already have been