unsigned reg = rep(mop.getReg());
mii->getOperand(i).setReg(reg);
- // If the definition instruction is re-materializable, its spill
- // weight is zero.
LiveInterval &RegInt = getInterval(reg);
- if (!RegInt.remat) {
- RegInt.weight +=
- (mop.isUse() + mop.isDef()) * pow(10.0F, (int)loopDepth);
- }
+ float w = (mop.isUse()+mop.isDef()) * powf(10.0F, (float)loopDepth);
+ // If the definition instruction is re-materializable, its spill
+ // weight is half of what it would have been normally.
+ if (RegInt.remat)
+ w /= 2;
+ RegInt.weight += w;
}
}
++mii;