//
//===----------------------------------------------------------------------===//
+#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/ADT/BitVector.h"
+
using namespace llvm;
MRegisterInfo::MRegisterInfo(const TargetRegisterDesc *D, unsigned NR,
MRegisterInfo::~MRegisterInfo() {}
-std::vector<bool> MRegisterInfo::getAllocatableSet(MachineFunction &MF) const {
- std::vector<bool> Allocatable(NumRegs);
+BitVector MRegisterInfo::getAllocatableSet(MachineFunction &MF) const {
+ BitVector Allocatable(NumRegs);
for (MRegisterInfo::regclass_iterator I = regclass_begin(),
E = regclass_end(); I != E; ++I) {
const TargetRegisterClass *RC = *I;
for (TargetRegisterClass::iterator I = RC->allocation_order_begin(MF),
E = RC->allocation_order_end(MF); I != E; ++I)
- Allocatable[*I] = true;
+ Allocatable.set(*I);
}
return Allocatable;
}
+
+/// getLocation - This method should return the actual location of a frame
+/// variable given the frame index. The location is returned in ML.
+/// Subclasses should override this method for special handling of frame
+/// variables and then call MRegisterInfo::getLocation for the default action.
+void MRegisterInfo::getLocation(MachineFunction &MF, unsigned Index,
+ MachineLocation &ML) const {
+ const TargetFrameInfo &TFI = *MF.getTarget().getFrameInfo();
+ MachineFrameInfo *MFI = MF.getFrameInfo();
+ ML.set(getFrameRegister(MF),
+ MFI->getObjectOffset(Index) +
+ MFI->getStackSize() -
+ TFI.getOffsetOfLocalArea() +
+ MFI->getOffsetAdjustment());
+}
+
+/// getInitialFrameState - Returns a list of machine moves that are assumed
+/// on entry to a function.
+void
+MRegisterInfo::getInitialFrameState(std::vector<MachineMove> &Moves) const {
+ // Default is to do nothing.
+}
+