//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "regalloc"
#include "llvm/CodeGen/Passes.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/IndexedMap.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
#include <algorithm>
using namespace llvm;
+#define DEBUG_TYPE "regalloc"
+
STATISTIC(NumStores, "Number of stores added");
STATISTIC(NumLoads , "Number of loads added");
STATISTIC(NumCopies, "Number of copies coalesced");
RAFast() : MachineFunctionPass(ID), StackSlotForVirtReg(-1),
isBulkSpilling(false) {}
private:
- const TargetMachine *TM;
MachineFunction *MF;
MachineRegisterInfo *MRI;
const TargetRegisterInfo *TRI;
bool Dirty; // Register needs spill.
explicit LiveReg(unsigned v)
- : LastUse(0), VirtReg(v), PhysReg(0), LastOpNum(0), Dirty(false) {}
+ : LastUse(nullptr), VirtReg(v), PhysReg(0), LastOpNum(0), Dirty(false){}
unsigned getSparseSetIndex() const {
return TargetRegisterInfo::virtReg2Index(VirtReg);
LiveDbgValueMap[LRI->VirtReg];
for (unsigned li = 0, le = LRIDbgValues.size(); li != le; ++li) {
MachineInstr *DBG = LRIDbgValues[li];
- const MDNode *MDPtr = DBG->getOperand(2).getMetadata();
+ const MDNode *Var = DBG->getDebugVariable();
+ const MDNode *Expr = DBG->getDebugExpression();
bool IsIndirect = DBG->isIndirectDebugValue();
uint64_t Offset = IsIndirect ? DBG->getOperand(1).getImm() : 0;
DebugLoc DL;
DL = (--EI)->getDebugLoc();
} else
DL = MI->getDebugLoc();
- MachineBasicBlock *MBB = DBG->getParent();
MachineInstr *NewDV =
BuildMI(*MBB, MI, DL, TII->get(TargetOpcode::DBG_VALUE))
- .addFrameIndex(FI).addImm(Offset).addMetadata(MDPtr);
+ .addFrameIndex(FI)
+ .addImm(Offset)
+ .addMetadata(Var)
+ .addMetadata(Expr);
+ assert(NewDV->getParent() == MBB && "dangling parent pointer");
(void)NewDV;
DEBUG(dbgs() << "Inserting debug info due to spill:" << "\n" << *NewDV);
}
// now.
LRIDbgValues.clear();
if (SpillKill)
- LR.LastUse = 0; // Don't kill register again
+ LR.LastUse = nullptr; // Don't kill register again
}
killVirtReg(LRI);
}
// Modify DBG_VALUE now that the value is in a spill slot.
bool IsIndirect = MI->isIndirectDebugValue();
uint64_t Offset = IsIndirect ? MI->getOperand(1).getImm() : 0;
- const MDNode *MDPtr =
- MI->getOperand(MI->getNumOperands()-1).getMetadata();
+ const MDNode *Var = MI->getDebugVariable();
+ const MDNode *Expr = MI->getDebugExpression();
DebugLoc DL = MI->getDebugLoc();
MachineBasicBlock *MBB = MI->getParent();
MachineInstr *NewDV = BuildMI(*MBB, MBB->erase(MI), DL,
TII->get(TargetOpcode::DBG_VALUE))
- .addFrameIndex(SS).addImm(Offset).addMetadata(MDPtr);
+ .addFrameIndex(SS)
+ .addImm(Offset)
+ .addMetadata(Var)
+ .addMetadata(Expr);
DEBUG(dbgs() << "Modifying debug info due to spill:"
<< "\t" << *NewDV);
// Scan NewDV operands from the beginning.
<< "********** Function: " << Fn.getName() << '\n');
MF = &Fn;
MRI = &MF->getRegInfo();
- TM = &Fn.getTarget();
- TRI = TM->getRegisterInfo();
- TII = TM->getInstrInfo();
+ TRI = MF->getSubtarget().getRegisterInfo();
+ TII = MF->getSubtarget().getInstrInfo();
MRI->freezeReservedRegs(Fn);
RegClassInfo.runOnMachineFunction(Fn);
UsedInInstr.clear();
}
// Add the clobber lists for all the instructions we skipped earlier.
- for (SmallPtrSet<const MCInstrDesc*, 4>::const_iterator
- I = SkippedInstrs.begin(), E = SkippedInstrs.end(); I != E; ++I)
- if (const uint16_t *Defs = (*I)->getImplicitDefs())
+ for (const MCInstrDesc *Desc : SkippedInstrs)
+ if (const uint16_t *Defs = Desc->getImplicitDefs())
while (*Defs)
MRI->setPhysRegUsed(*Defs++);