return;
// Live-in registers are in use.
- for (MachineBasicBlock::const_livein_iterator I = MBB->livein_begin(),
+ for (MachineBasicBlock::livein_iterator I = MBB->livein_begin(),
E = MBB->livein_end(); I != E; ++I)
setUsed(*I);
CalleeSavedRegs.set(CSRegs[i]);
}
- // RS used within emit{Pro,Epi}logue()
- if (mbb != MBB) {
- MBB = mbb;
- initRegState();
- }
+ MBB = mbb;
+ initRegState();
Tracking = false;
}
Tracking = true;
} else {
assert(MBBI != MBB->end() && "Already at the end of the basic block!");
- MBBI = next(MBBI);
+ MBBI = llvm::next(MBBI);
}
MachineInstr *MI = MBBI;
ScavengeRestore = NULL;
}
+ if (MI->isDebugValue())
+ return;
+
// Find out which registers are early clobbered, killed, defined, and marked
// def-dead in this instruction.
BitVector EarlyClobberRegs(NumPhysRegs);
// Spill the scavenged register before I.
assert(ScavengingFrameIndex >= 0 &&
"Cannot scavenge register without an emergency spill slot!");
- TII->storeRegToStackSlot(*MBB, I, SReg, true, ScavengingFrameIndex, RC);
+ TII->storeRegToStackSlot(*MBB, I, SReg, true, ScavengingFrameIndex, RC,TRI);
MachineBasicBlock::iterator II = prior(I);
TRI->eliminateFrameIndex(II, SPAdj, NULL, this);
// Restore the scavenged register before its use (or first terminator).
- TII->loadRegFromStackSlot(*MBB, UseMI, SReg, ScavengingFrameIndex, RC);
+ TII->loadRegFromStackSlot(*MBB, UseMI, SReg, ScavengingFrameIndex, RC, TRI);
II = prior(UseMI);
TRI->eliminateFrameIndex(II, SPAdj, NULL, this);
}