const TargetRegisterClass *RC = MF->getRegInfo().getRegClass(VirtReg);
int FrameIndex = getStackSpaceFor(VirtReg, RC);
DOUT << " to stack slot #" << FrameIndex;
- TII->storeRegToStackSlot(MBB, I, PhysReg, true, FrameIndex, RC);
-
// If the instruction reads the register that's spilled, (e.g. this can
// happen if it is a move to a physical register), then the spill
// instruction is not a kill.
- if (I != MBB.end() && I->findRegisterUseOperandIdx(PhysReg) != -1) {
- MachineBasicBlock::iterator StoreMI = prior(I);
- int Idx = StoreMI->findRegisterUseOperandIdx(PhysReg, true);
- assert(Idx != -1 && "Unrecognized spill instruction!");
- StoreMI->getOperand(Idx).setIsKill(false);
- }
+ bool isKill = !(I != MBB.end() &&
+ I->findRegisterUseOperandIdx(PhysReg) != -1);
+ TII->storeRegToStackSlot(MBB, I, PhysReg, isKill, FrameIndex, RC);
++NumStores; // Update statistics
}
// Spill all physical registers holding virtual registers now.
for (unsigned i = 0, e = TRI->getNumRegs(); i != e; ++i)
- if (PhysRegsUsed[i] != -1 && PhysRegsUsed[i] != -2)
+ if (PhysRegsUsed[i] != -1 && PhysRegsUsed[i] != -2) {
if (unsigned VirtReg = PhysRegsUsed[i])
spillVirtReg(MBB, MI, VirtReg, i);
else
removePhysReg(i);
+ }
#if 0
// This checking code is very expensive.