#define DEBUG_TYPE "mips-isel"
#include "Mips.h"
-#include "MipsISelLowering.h"
#include "MipsMachineFunction.h"
#include "MipsRegisterInfo.h"
#include "MipsSubtarget.h"
SelectionDAGISel(tm),
TM(tm), Subtarget(tm.getSubtarget<MipsSubtarget>()) {}
- virtual void InstructionSelect();
-
// Pass Name
virtual const char *getPassName() const {
return "MIPS DAG->DAG Pattern Instruction Selection";
SDNode *Select(SDNode *N);
// Complex Pattern.
- bool SelectAddr(SDNode *Op, SDValue N,
- SDValue &Base, SDValue &Offset);
+ bool SelectAddr(SDValue N, SDValue &Base, SDValue &Offset);
SDNode *SelectLoadFp64(SDNode *N);
SDNode *SelectStoreFp64(SDNode *N);
inline SDValue getI32Imm(unsigned Imm) {
return CurDAG->getTargetConstant(Imm, MVT::i32);
}
-
-
- #ifndef NDEBUG
- unsigned Indent;
- #endif
};
}
-/// InstructionSelect - This callback is invoked by
-/// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
-void MipsDAGToDAGISel::InstructionSelect() {
- // Codegen the basic block.
- DEBUG(errs() << "===== Instruction selection begins:\n");
- DEBUG(Indent = 0);
-
- // Select target instructions for the DAG.
- SelectRoot(*CurDAG);
-
- DEBUG(errs() << "===== Instruction selection ends:\n");
-
- CurDAG->RemoveDeadNodes();
-}
/// getGlobalBaseReg - Output the instructions required to put the
/// GOT address into a register.
/// ComplexPattern used on MipsInstrInfo
/// Used on Mips Load/Store instructions
bool MipsDAGToDAGISel::
-SelectAddr(SDNode *Op, SDValue Addr, SDValue &Offset, SDValue &Base)
-{
+SelectAddr(SDValue Addr, SDValue &Offset, SDValue &Base) {
// if Address is FI, get the TargetFrameIndex.
if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
// Operand is a result from an ADD.
if (Addr.getOpcode() == ISD::ADD) {
if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) {
- if (Predicate_immSExt16(CN)) {
+ if (isInt<16>(CN->getSExtValue())) {
// If the first operand is a FI, get the TargetFI Node
if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>
if (!Subtarget.isMips1() || NVT != MVT::f64)
return NULL;
- if (!Predicate_unindexedload(N) ||
- !Predicate_load(N))
+ LoadSDNode *LN = cast<LoadSDNode>(N);
+ if (LN->getExtensionType() != ISD::NON_EXTLOAD ||
+ LN->getAddressingMode() != ISD::UNINDEXED)
return NULL;
SDValue Chain = N->getOperand(0);
SDValue N1 = N->getOperand(1);
SDValue Offset0, Offset1, Base;
- if (!SelectAddr(N, N1, Offset0, Base) ||
+ if (!SelectAddr(N1, Offset0, Base) ||
N1.getValueType() != MVT::i32)
return NULL;
// lwc $f1, X+4($3)
SDNode *LD0 = CurDAG->getMachineNode(Mips::LWC1, dl, MVT::f32,
MVT::Other, Offset0, Base, Chain);
- SDValue Undef = SDValue(CurDAG->getMachineNode(TargetInstrInfo::IMPLICIT_DEF,
+ SDValue Undef = SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF,
dl, NVT), 0);
- SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::SUBREG_FPEVEN, dl,
+ SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
MVT::f64, Undef, SDValue(LD0, 0));
SDNode *LD1 = CurDAG->getMachineNode(Mips::LWC1, dl, MVT::f32,
MVT::Other, Offset1, Base, SDValue(LD0, 1));
- SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::SUBREG_FPODD, dl,
+ SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
MVT::f64, I0, SDValue(LD1, 0));
ReplaceUses(SDValue(N, 0), I1);
SDValue Chain = N->getOperand(0);
- if (!Predicate_unindexedstore(N) ||
- !Predicate_store(N))
+ StoreSDNode *SN = cast<StoreSDNode>(N);
+ if (SN->isTruncatingStore() || SN->getAddressingMode() != ISD::UNINDEXED)
return NULL;
SDValue N1 = N->getOperand(1);
SDValue N2 = N->getOperand(2);
SDValue Offset0, Offset1, Base;
- if (!SelectAddr(N, N2, Offset0, Base) ||
+ if (!SelectAddr(N2, Offset0, Base) ||
N1.getValueType() != MVT::f64 ||
N2.getValueType() != MVT::i32)
return NULL;
DebugLoc dl = N->getDebugLoc();
// Get the even and odd part from the f64 register
- SDValue FPOdd = CurDAG->getTargetExtractSubreg(Mips::SUBREG_FPODD,
+ SDValue FPOdd = CurDAG->getTargetExtractSubreg(Mips::sub_fpodd,
dl, MVT::f32, N1);
- SDValue FPEven = CurDAG->getTargetExtractSubreg(Mips::SUBREG_FPEVEN,
+ SDValue FPEven = CurDAG->getTargetExtractSubreg(Mips::sub_fpeven,
dl, MVT::f32, N1);
// The second store should start after for 4 bytes.
DebugLoc dl = Node->getDebugLoc();
// Dump information about the Node being selected
- DEBUG(errs().indent(Indent) << "Selecting: ";
- Node->dump(CurDAG);
- errs() << "\n");
- DEBUG(Indent += 2);
+ DEBUG(errs() << "Selecting: "; Node->dump(CurDAG); errs() << "\n");
// If we have a custom node, we already have selected!
if (Node->isMachineOpcode()) {
- DEBUG(errs().indent(Indent-2) << "== ";
- Node->dump(CurDAG);
- errs() << "\n");
- DEBUG(Indent -= 2);
+ DEBUG(errs() << "== "; Node->dump(CurDAG); errs() << "\n");
return NULL;
}
else
Op = (Opcode == ISD::UDIVREM ? Mips::DIVu : Mips::DIV);
- SDNode *Node = CurDAG->getMachineNode(Op, dl, MVT::Flag, Op1, Op2);
+ SDNode *MulDiv = CurDAG->getMachineNode(Op, dl, MVT::Flag, Op1, Op2);
- SDValue InFlag = SDValue(Node, 0);
+ SDValue InFlag = SDValue(MulDiv, 0);
SDNode *Lo = CurDAG->getMachineNode(Mips::MFLO, dl, MVT::i32,
MVT::Flag, InFlag);
InFlag = SDValue(Lo,1);
SDValue InFlag = SDValue(MulNode, 0);
- if (MulOp == ISD::MUL)
+ if (Opcode == ISD::MUL)
return CurDAG->getMachineNode(Mips::MFLO, dl, MVT::i32, InFlag);
else
return CurDAG->getMachineNode(Mips::MFHI, dl, MVT::i32, InFlag);
SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
Mips::ZERO, MVT::i32);
SDValue Undef = SDValue(
- CurDAG->getMachineNode(
- TargetInstrInfo::IMPLICIT_DEF, dl, MVT::f64), 0);
+ CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, MVT::f64), 0);
SDNode *MTC = CurDAG->getMachineNode(Mips::MTC1, dl, MVT::f32, Zero);
- SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::SUBREG_FPEVEN, dl,
+ SDValue I0 = CurDAG->getTargetInsertSubreg(Mips::sub_fpeven, dl,
MVT::f64, Undef, SDValue(MTC, 0));
- SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::SUBREG_FPODD, dl,
+ SDValue I1 = CurDAG->getTargetInsertSubreg(Mips::sub_fpodd, dl,
MVT::f64, I0, SDValue(MTC, 0));
ReplaceUses(SDValue(Node, 0), I1);
return I1.getNode();
// Select the default instruction
SDNode *ResNode = SelectCode(Node);
- DEBUG(errs().indent(Indent-2) << "=> ");
+ DEBUG(errs() << "=> ");
if (ResNode == NULL || ResNode == Node)
DEBUG(Node->dump(CurDAG));
else
DEBUG(ResNode->dump(CurDAG));
DEBUG(errs() << "\n");
- DEBUG(Indent -= 2);
-
return ResNode;
}
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