//===----------------------------------------------------------------------===//
#include "XCore.h"
-#include "XCoreISelLowering.h"
#include "XCoreTargetMachine.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
///
namespace {
class XCoreDAGToDAGISel : public SelectionDAGISel {
- XCoreTargetLowering &Lowering;
+ const XCoreTargetLowering &Lowering;
const XCoreSubtarget &Subtarget;
public:
Lowering(*TM.getTargetLowering()),
Subtarget(*TM.getSubtargetImpl()) { }
- SDNode *Select(SDValue Op);
+ SDNode *Select(SDNode *N);
/// getI32Imm - Return a target constant with the specified value, of type
/// i32.
inline SDValue getI32Imm(unsigned Imm) {
- return CurDAG->getTargetConstant(Imm, EVT::i32);
+ return CurDAG->getTargetConstant(Imm, MVT::i32);
}
// Complex Pattern Selectors.
- bool SelectADDRspii(SDValue Op, SDValue Addr, SDValue &Base,
+ bool SelectADDRspii(SDNode *Op, SDValue Addr, SDValue &Base,
SDValue &Offset);
- bool SelectADDRdpii(SDValue Op, SDValue Addr, SDValue &Base,
+ bool SelectADDRdpii(SDNode *Op, SDValue Addr, SDValue &Base,
SDValue &Offset);
- bool SelectADDRcpii(SDValue Op, SDValue Addr, SDValue &Base,
+ bool SelectADDRcpii(SDNode *Op, SDValue Addr, SDValue &Base,
SDValue &Offset);
- virtual void InstructionSelect();
-
virtual const char *getPassName() const {
return "XCore DAG->DAG Pattern Instruction Selection";
}
return new XCoreDAGToDAGISel(TM);
}
-bool XCoreDAGToDAGISel::SelectADDRspii(SDValue Op, SDValue Addr,
+bool XCoreDAGToDAGISel::SelectADDRspii(SDNode *Op, SDValue Addr,
SDValue &Base, SDValue &Offset) {
FrameIndexSDNode *FIN = 0;
if ((FIN = dyn_cast<FrameIndexSDNode>(Addr))) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), EVT::i32);
- Offset = CurDAG->getTargetConstant(0, EVT::i32);
+ Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
+ Offset = CurDAG->getTargetConstant(0, MVT::i32);
return true;
}
if (Addr.getOpcode() == ISD::ADD) {
&& (CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1)))
&& (CN->getSExtValue() % 4 == 0 && CN->getSExtValue() >= 0)) {
// Constant positive word offset from frame index
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), EVT::i32);
- Offset = CurDAG->getTargetConstant(CN->getSExtValue(), EVT::i32);
+ Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
+ Offset = CurDAG->getTargetConstant(CN->getSExtValue(), MVT::i32);
return true;
}
}
return false;
}
-bool XCoreDAGToDAGISel::SelectADDRdpii(SDValue Op, SDValue Addr,
+bool XCoreDAGToDAGISel::SelectADDRdpii(SDNode *Op, SDValue Addr,
SDValue &Base, SDValue &Offset) {
if (Addr.getOpcode() == XCoreISD::DPRelativeWrapper) {
Base = Addr.getOperand(0);
- Offset = CurDAG->getTargetConstant(0, EVT::i32);
+ Offset = CurDAG->getTargetConstant(0, MVT::i32);
return true;
}
if (Addr.getOpcode() == ISD::ADD) {
&& (CN->getSExtValue() % 4 == 0)) {
// Constant word offset from a object in the data region
Base = Addr.getOperand(0).getOperand(0);
- Offset = CurDAG->getTargetConstant(CN->getSExtValue(), EVT::i32);
+ Offset = CurDAG->getTargetConstant(CN->getSExtValue(), MVT::i32);
return true;
}
}
return false;
}
-bool XCoreDAGToDAGISel::SelectADDRcpii(SDValue Op, SDValue Addr,
+bool XCoreDAGToDAGISel::SelectADDRcpii(SDNode *Op, SDValue Addr,
SDValue &Base, SDValue &Offset) {
if (Addr.getOpcode() == XCoreISD::CPRelativeWrapper) {
Base = Addr.getOperand(0);
- Offset = CurDAG->getTargetConstant(0, EVT::i32);
+ Offset = CurDAG->getTargetConstant(0, MVT::i32);
return true;
}
if (Addr.getOpcode() == ISD::ADD) {
&& (CN->getSExtValue() % 4 == 0)) {
// Constant word offset from a object in the data region
Base = Addr.getOperand(0).getOperand(0);
- Offset = CurDAG->getTargetConstant(CN->getSExtValue(), EVT::i32);
+ Offset = CurDAG->getTargetConstant(CN->getSExtValue(), MVT::i32);
return true;
}
}
return false;
}
-/// InstructionSelect - This callback is invoked by
-/// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-void XCoreDAGToDAGISel::
-InstructionSelect() {
- DEBUG(BB->dump());
-
- // Select target instructions for the DAG.
- SelectRoot(*CurDAG);
-
- CurDAG->RemoveDeadNodes();
-}
-
-SDNode *XCoreDAGToDAGISel::Select(SDValue Op) {
- SDNode *N = Op.getNode();
+SDNode *XCoreDAGToDAGISel::Select(SDNode *N) {
DebugLoc dl = N->getDebugLoc();
EVT NVT = N->getValueType(0);
- if (NVT == EVT::i32) {
+ if (NVT == MVT::i32) {
switch (N->getOpcode()) {
default: break;
case ISD::Constant: {
if (Predicate_immMskBitp(N)) {
- SDValue MskSize = Transform_msksize_xform(N);
- return CurDAG->getTargetNode(XCore::MKMSK_rus, dl, EVT::i32, MskSize);
+ // Transformation function: get the size of a mask
+ int64_t MaskVal = cast<ConstantSDNode>(N)->getZExtValue();
+ assert(isMask_32(MaskVal));
+ // Look for the first non-zero bit
+ SDValue MskSize = getI32Imm(32 - CountLeadingZeros_32(MaskVal));
+ return CurDAG->getMachineNode(XCore::MKMSK_rus, dl,
+ MVT::i32, MskSize);
}
else if (! Predicate_immU16(N)) {
unsigned Val = cast<ConstantSDNode>(N)->getZExtValue();
SDValue CPIdx =
- CurDAG->getTargetConstantPool(ConstantInt::get(Type::Int32Ty, Val),
+ CurDAG->getTargetConstantPool(ConstantInt::get(
+ Type::getInt32Ty(*CurDAG->getContext()), Val),
TLI.getPointerTy());
- return CurDAG->getTargetNode(XCore::LDWCP_lru6, dl, EVT::i32,
- EVT::Other, CPIdx,
- CurDAG->getEntryNode());
+ return CurDAG->getMachineNode(XCore::LDWCP_lru6, dl, MVT::i32,
+ MVT::Other, CPIdx,
+ CurDAG->getEntryNode());
}
break;
}
- case ISD::SMUL_LOHI: {
- // FIXME fold addition into the macc instruction
- if (!Subtarget.isXS1A()) {
- SDValue Zero(CurDAG->getTargetNode(XCore::LDC_ru6, dl, EVT::i32,
- CurDAG->getTargetConstant(0, EVT::i32)), 0);
- SDValue Ops[] = { Zero, Zero, Op.getOperand(0), Op.getOperand(1) };
- SDNode *ResNode = CurDAG->getTargetNode(XCore::MACCS_l4r, dl,
- EVT::i32, EVT::i32, Ops, 4);
- ReplaceUses(SDValue(N, 0), SDValue(ResNode, 1));
- ReplaceUses(SDValue(N, 1), SDValue(ResNode, 0));
- return NULL;
- }
- break;
- }
- case ISD::UMUL_LOHI: {
- // FIXME fold addition into the macc / lmul instruction
- SDValue Zero(CurDAG->getTargetNode(XCore::LDC_ru6, dl, EVT::i32,
- CurDAG->getTargetConstant(0, EVT::i32)), 0);
- SDValue Ops[] = { Op.getOperand(0), Op.getOperand(1),
- Zero, Zero };
- SDNode *ResNode = CurDAG->getTargetNode(XCore::LMUL_l6r, dl, EVT::i32,
- EVT::i32, Ops, 4);
- ReplaceUses(SDValue(N, 0), SDValue(ResNode, 1));
- ReplaceUses(SDValue(N, 1), SDValue(ResNode, 0));
- return NULL;
- }
case XCoreISD::LADD: {
- if (!Subtarget.isXS1A()) {
- SDValue Ops[] = { Op.getOperand(0), Op.getOperand(1),
- Op.getOperand(2) };
- return CurDAG->getTargetNode(XCore::LADD_l5r, dl, EVT::i32, EVT::i32,
- Ops, 3);
- }
- break;
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
+ N->getOperand(2) };
+ return CurDAG->getMachineNode(XCore::LADD_l5r, dl, MVT::i32, MVT::i32,
+ Ops, 3);
}
case XCoreISD::LSUB: {
- if (!Subtarget.isXS1A()) {
- SDValue Ops[] = { Op.getOperand(0), Op.getOperand(1),
- Op.getOperand(2) };
- return CurDAG->getTargetNode(XCore::LSUB_l5r, dl, EVT::i32, EVT::i32,
- Ops, 3);
- }
- break;
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
+ N->getOperand(2) };
+ return CurDAG->getMachineNode(XCore::LSUB_l5r, dl, MVT::i32, MVT::i32,
+ Ops, 3);
+ }
+ case XCoreISD::MACCU: {
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
+ N->getOperand(2), N->getOperand(3) };
+ return CurDAG->getMachineNode(XCore::MACCU_l4r, dl, MVT::i32, MVT::i32,
+ Ops, 4);
+ }
+ case XCoreISD::MACCS: {
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
+ N->getOperand(2), N->getOperand(3) };
+ return CurDAG->getMachineNode(XCore::MACCS_l4r, dl, MVT::i32, MVT::i32,
+ Ops, 4);
+ }
+ case XCoreISD::LMUL: {
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
+ N->getOperand(2), N->getOperand(3) };
+ return CurDAG->getMachineNode(XCore::LMUL_l6r, dl, MVT::i32, MVT::i32,
+ Ops, 4);
}
// Other cases are autogenerated.
}
}
- return SelectCode(Op);
+ return SelectCode(N);
}
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