static bool isSimilarDispOp(const MachineOperand &MO1,
const MachineOperand &MO2) {
assert(isValidDispOp(MO1) && isValidDispOp(MO2) &&
"Address displacement operand is not valid");
return (MO1.isImm() && MO2.isImm()) ||
(MO1.isCPI() && MO2.isCPI() && MO1.getIndex() == MO2.getIndex()) ||
(MO1.isJTI() && MO2.isJTI() && MO1.getIndex() == MO2.getIndex()) ||
(MO1.isSymbol() && MO2.isSymbol() &&
MO1.getSymbolName() == MO2.getSymbolName()) ||
(MO1.isGlobal() && MO2.isGlobal() &&
MO1.getGlobal() == MO2.getGlobal()) ||
(MO1.isBlockAddress() && MO2.isBlockAddress() &&
MO1.getBlockAddress() == MO2.getBlockAddress()) ||
(MO1.isMCSymbol() && MO2.isMCSymbol() &&
MO1.getMCSymbol() == MO2.getMCSymbol()) ||
(MO1.isMBB() && MO2.isMBB() && MO1.getMBB() == MO2.getMBB());
}
void HexagonCopyToCombine::emitCombineRI(MachineBasicBlock::iterator &InsertPt,
unsigned DoubleDestReg,
MachineOperand &HiOperand,
MachineOperand &LoOperand) {
unsigned HiRegKillFlag = getKillRegState(HiOperand.isKill());
unsigned HiReg = HiOperand.getReg();
DebugLoc DL = InsertPt->getDebugLoc();
MachineBasicBlock *BB = InsertPt->getParent();
// Handle global.
if (LoOperand.isGlobal()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
.addReg(HiReg, HiRegKillFlag)
.addGlobalAddress(LoOperand.getGlobal(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// Handle block addresses.
if (LoOperand.isBlockAddress()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
.addReg(HiReg, HiRegKillFlag)
.addBlockAddress(LoOperand.getBlockAddress(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// Handle jump tables.
if (LoOperand.isJTI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
.addReg(HiOperand.getReg(), HiRegKillFlag)
.addJumpTableIndex(LoOperand.getIndex(), LoOperand.getTargetFlags());
return;
}
// Handle constant pools.
if (LoOperand.isCPI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
.addReg(HiOperand.getReg(), HiRegKillFlag)
.addConstantPoolIndex(LoOperand.getIndex(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// Insert new combine instruction.
// DoubleRegDest = combine HiReg, #LoImm
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
.addReg(HiReg, HiRegKillFlag)
.addImm(LoOperand.getImm());
}
void HexagonCopyToCombine::emitCombineII(MachineBasicBlock::iterator &InsertPt,
unsigned DoubleDestReg,
MachineOperand &HiOperand,
MachineOperand &LoOperand) {
DebugLoc DL = InsertPt->getDebugLoc();
MachineBasicBlock *BB = InsertPt->getParent();
// Handle globals.
if (HiOperand.isGlobal()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addGlobalAddress(HiOperand.getGlobal(), HiOperand.getOffset(),
HiOperand.getTargetFlags())
.addImm(LoOperand.getImm());
return;
}
if (LoOperand.isGlobal()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addGlobalAddress(LoOperand.getGlobal(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// Handle block addresses.
if (HiOperand.isBlockAddress()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addBlockAddress(HiOperand.getBlockAddress(), HiOperand.getOffset(),
HiOperand.getTargetFlags())
.addImm(LoOperand.getImm());
return;
}
if (LoOperand.isBlockAddress()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addBlockAddress(LoOperand.getBlockAddress(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// Handle jump tables.
if (HiOperand.isJTI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addJumpTableIndex(HiOperand.getIndex(), HiOperand.getTargetFlags())
.addImm(LoOperand.getImm());
return;
}
if (LoOperand.isJTI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addJumpTableIndex(LoOperand.getIndex(), LoOperand.getTargetFlags());
return;
}
// Handle constant pools.
if (HiOperand.isCPI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addConstantPoolIndex(HiOperand.getIndex(), HiOperand.getOffset(),
HiOperand.getTargetFlags())
.addImm(LoOperand.getImm());
return;
}
if (LoOperand.isCPI()) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addConstantPoolIndex(LoOperand.getIndex(), LoOperand.getOffset(),
LoOperand.getTargetFlags());
return;
}
// First preference should be given to Hexagon::A2_combineii instruction
// as it can include U6 (in Hexagon::A4_combineii) as well.
// In this instruction, HiOperand is const extended, if required.
if (isInt<8>(LoOperand.getImm())) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addImm(LoOperand.getImm());
return;
}
// In this instruction, LoOperand is const extended, if required.
if (isInt<8>(HiOperand.getImm())) {
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addImm(LoOperand.getImm());
return;
}
// Insert new combine instruction.
// DoubleRegDest = combine #HiImm, #LoImm
BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
.addImm(HiOperand.getImm())
.addImm(LoOperand.getImm());
}
static bool isValidDispOp(const MachineOperand &MO) {
return MO.isImm() || MO.isCPI() || MO.isJTI() || MO.isSymbol() ||
MO.isGlobal() || MO.isBlockAddress() || MO.isMCSymbol() || MO.isMBB();
}