Thumb2RegisterInfo.cpp [plain text]
#include "Thumb2RegisterInfo.h"
#include "ARM.h"
#include "ARMSubtarget.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;
Thumb2RegisterInfo::Thumb2RegisterInfo(const ARMSubtarget &sti)
: ARMBaseRegisterInfo(sti) {
}
void
Thumb2RegisterInfo::emitLoadConstPool(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &MBBI,
DebugLoc dl,
unsigned DestReg, unsigned SubIdx,
int Val,
ARMCC::CondCodes Pred, unsigned PredReg,
unsigned MIFlags) const {
MachineFunction &MF = *MBB.getParent();
const TargetInstrInfo &TII = *MF.getSubtarget().getInstrInfo();
MachineConstantPool *ConstantPool = MF.getConstantPool();
const Constant *C = ConstantInt::get(
Type::getInt32Ty(MBB.getParent()->getFunction()->getContext()), Val);
unsigned Idx = ConstantPool->getConstantPoolIndex(C, 4);
BuildMI(MBB, MBBI, dl, TII.get(ARM::t2LDRpci))
.addReg(DestReg, getDefRegState(true), SubIdx)
.addConstantPoolIndex(Idx).addImm((int64_t)ARMCC::AL).addReg(0)
.setMIFlags(MIFlags);
}