#define DEBUG_TYPE "mblaze-isel"
#include "MBlaze.h"
-#include "MBlazeISelLowering.h"
#include "MBlazeMachineFunction.h"
#include "MBlazeRegisterInfo.h"
#include "MBlazeSubtarget.h"
#include "MBlazeTargetMachine.h"
-#include "llvm/GlobalValue.h"
-#include "llvm/Instructions.h"
-#include "llvm/Intrinsics.h"
-#include "llvm/Support/CFG.h"
-#include "llvm/Type.h"
#include "llvm/CodeGen/MachineConstantPool.h"
-#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/Type.h"
+#include "llvm/Support/CFG.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetMachine.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
SDNode *getGlobalBaseReg();
SDNode *Select(SDNode *N);
- // Complex Pattern.
- bool SelectAddr(SDNode *Op, SDValue N,
- SDValue &Base, SDValue &Offset);
-
// Address Selection
- bool SelectAddrRegReg(SDNode *Op, SDValue N, SDValue &Base, SDValue &Index);
- bool SelectAddrRegImm(SDNode *Op, SDValue N, SDValue &Disp, SDValue &Base);
+ bool SelectAddrRegReg(SDValue N, SDValue &Base, SDValue &Index);
+ bool SelectAddrRegImm(SDValue N, SDValue &Disp, SDValue &Base);
// getI32Imm - Return a target constant with the specified value, of type i32.
inline SDValue getI32Imm(unsigned Imm) {
/// can be represented as an indexed [r+r] operation. Returns false if it
/// can be more efficiently represented with [r+imm].
bool MBlazeDAGToDAGISel::
-SelectAddrRegReg(SDNode *Op, SDValue N, SDValue &Base, SDValue &Index) {
+SelectAddrRegReg(SDValue N, SDValue &Base, SDValue &Index) {
if (N.getOpcode() == ISD::FrameIndex) return false;
if (N.getOpcode() == ISD::TargetExternalSymbol ||
N.getOpcode() == ISD::TargetGlobalAddress)
return false; // direct calls.
- if (N.getOperand(0).getOpcode() == ISD::TargetJumpTable ||
- N.getOperand(1).getOpcode() == ISD::TargetJumpTable)
- return false; // jump tables.
-
int32_t imm = 0;
if (N.getOpcode() == ISD::ADD || N.getOpcode() == ISD::OR) {
if (isIntS32Immediate(N.getOperand(1), imm))
return false; // r+i
- Base = N.getOperand(1);
- Index = N.getOperand(0);
+ if (N.getOperand(0).getOpcode() == ISD::TargetJumpTable ||
+ N.getOperand(1).getOpcode() == ISD::TargetJumpTable)
+ return false; // jump tables.
+
+ Base = N.getOperand(0);
+ Index = N.getOperand(1);
return true;
}
/// a signed 32-bit displacement [r+imm], and if it is not better
/// represented as reg+reg.
bool MBlazeDAGToDAGISel::
-SelectAddrRegImm(SDNode *Op, SDValue N, SDValue &Disp, SDValue &Base) {
+SelectAddrRegImm(SDValue N, SDValue &Base, SDValue &Disp) {
// If this can be more profitably realized as r+r, fail.
- if (SelectAddrRegReg(Op, N, Disp, Base))
+ if (SelectAddrRegReg(N, Base, Disp))
return false;
if (N.getOpcode() == ISD::ADD || N.getOpcode() == ISD::OR) {
} else {
Base = N.getOperand(0);
}
- DEBUG( errs() << "WESLEY: Using Operand Immediate\n" );
return true; // [r+i]
}
} else if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N)) {
uint32_t Imm = CN->getZExtValue();
Disp = CurDAG->getTargetConstant(Imm, CN->getValueType(0));
Base = CurDAG->getRegister(MBlaze::R0, CN->getValueType(0));
- DEBUG( errs() << "WESLEY: Using Constant Node\n" );
return true;
}
return CurDAG->getRegister(GlobalBaseReg, TLI.getPointerTy()).getNode();
}
-/// ComplexPattern used on MBlazeInstrInfo
-/// Used on MBlaze Load/Store instructions
-bool MBlazeDAGToDAGISel::
-SelectAddr(SDNode *Op, 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);
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
- }
-
- // on PIC code Load GA
- if (TM.getRelocationModel() == Reloc::PIC_) {
- if ((Addr.getOpcode() == ISD::TargetGlobalAddress) ||
- (Addr.getOpcode() == ISD::TargetConstantPool) ||
- (Addr.getOpcode() == ISD::TargetJumpTable)){
- Base = CurDAG->getRegister(MBlaze::R15, MVT::i32);
- Offset = Addr;
- return true;
- }
- } else {
- if ((Addr.getOpcode() == ISD::TargetExternalSymbol ||
- Addr.getOpcode() == ISD::TargetGlobalAddress))
- return false;
- }
-
- // 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 the first operand is a FI, get the TargetFI Node
- if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>
- (Addr.getOperand(0))) {
- Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
- } else {
- Base = Addr.getOperand(0);
- }
-
- Offset = CurDAG->getTargetConstant(CN->getZExtValue(), MVT::i32);
- return true;
- }
- }
- }
-
- Base = Addr;
- Offset = CurDAG->getTargetConstant(0, MVT::i32);
- return true;
-}
-
/// Select instructions not customized! Used for
/// expanded, promoted and normal instructions
SDNode* MBlazeDAGToDAGISel::Select(SDNode *Node) {
unsigned Opcode = Node->getOpcode();
DebugLoc dl = Node->getDebugLoc();
- // Dump information about the Node being selected
- DEBUG(errs() << "Selecting: "; Node->dump(CurDAG); errs() << "\n");
-
// If we have a custom node, we already have selected!
- if (Node->isMachineOpcode()) {
- DEBUG(errs() << "== "; Node->dump(CurDAG); errs() << "\n");
+ if (Node->isMachineOpcode())
return NULL;
- }
///
// Instruction Selection not handled by the auto-generated
// tablegen selection should be handled here.
///
- switch(Opcode) {
+ switch (Opcode) {
default: break;
// Get target GOT address.
int FI = dyn_cast<FrameIndexSDNode>(Node)->getIndex();
EVT VT = Node->getValueType(0);
SDValue TFI = CurDAG->getTargetFrameIndex(FI, VT);
- unsigned Opc = MBlaze::ADDI;
+ unsigned Opc = MBlaze::ADDIK;
if (Node->hasOneUse())
return CurDAG->SelectNodeTo(Node, Opc, VT, TFI, imm);
return CurDAG->getMachineNode(Opc, dl, VT, TFI, imm);
SDValue R20Reg = CurDAG->getRegister(MBlaze::R20, MVT::i32);
SDValue InFlag(0, 0);
- if ( (isa<GlobalAddressSDNode>(Callee)) ||
- (isa<ExternalSymbolSDNode>(Callee)) )
+ if ((isa<GlobalAddressSDNode>(Callee)) ||
+ (isa<ExternalSymbolSDNode>(Callee)))
{
/// Direct call for global addresses and external symbols
SDValue GPReg = CurDAG->getRegister(MBlaze::R15, MVT::i32);
// Emit Jump and Link Register
SDNode *ResNode = CurDAG->getMachineNode(MBlaze::BRLID, dl, MVT::Other,
- MVT::Flag, R20Reg, Chain);
+ MVT::Glue, R20Reg, Chain);
Chain = SDValue(ResNode, 0);
InFlag = SDValue(ResNode, 1);
ReplaceUses(SDValue(Node, 0), Chain);
projects / oota-llvm.git / blobdiff