#ifndef MBlazeISELLOWERING_H
#define MBlazeISELLOWERING_H
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetLowering.h"
#include "MBlaze.h"
GE,
LE
};
+
+ inline static CC getOppositeCondition(CC cc) {
+ switch (cc) {
+ default: llvm_unreachable("Unknown condition code");
+ case EQ: return NE;
+ case NE: return EQ;
+ case GT: return LE;
+ case LT: return GE;
+ case GE: return LT;
+ case LE: return GE;
+ }
+ }
+
+ inline static const char *MBlazeCCToString(CC cc) {
+ switch (cc) {
+ default: llvm_unreachable("Unknown condition code");
+ case EQ: return "eq";
+ case NE: return "ne";
+ case GT: return "gt";
+ case LT: return "lt";
+ case GE: return "ge";
+ case LE: return "le";
+ }
+ }
}
namespace MBlazeISD {
// Integer Compare
ICmp,
- // Return
- Ret
+ // Return from subroutine
+ Ret,
+
+ // Return from interrupt
+ IRet
};
}
explicit MBlazeTargetLowering(MBlazeTargetMachine &TM);
/// LowerOperation - Provide custom lowering hooks for some operations.
- virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
/// getTargetNodeName - This method returns the name of a target specific
// DAG node.
/// getSetCCResultType - get the ISD::SETCC result ValueType
MVT::SimpleValueType getSetCCResultType(EVT VT) const;
- virtual unsigned getFunctionAlignment(const Function *F) const;
private:
// Subtarget Info
const MBlazeSubtarget *Subtarget;
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
// Lower Operand specifics
- SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
virtual SDValue
LowerFormalArguments(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
virtual SDValue
LowerCall(SDValue Chain, SDValue Callee,
CallingConv::ID CallConv, bool isVarArg,
bool &isTailCall,
const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
virtual SDValue
LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
- DebugLoc dl, SelectionDAG &DAG);
+ const SmallVectorImpl<SDValue> &OutVals,
+ DebugLoc dl, SelectionDAG &DAG) const;
+
+ virtual MachineBasicBlock*
+ EmitCustomShift(MachineInstr *MI, MachineBasicBlock *MBB) const;
- virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *MBB,
- DenseMap<MachineBasicBlock*, MachineBasicBlock*> *EM) const;
+ virtual MachineBasicBlock*
+ EmitCustomSelect(MachineInstr *MI, MachineBasicBlock *MBB) const;
+
+ virtual MachineBasicBlock*
+ EmitCustomAtomic(MachineInstr *MI, MachineBasicBlock *MBB) const;
+
+ virtual MachineBasicBlock *
+ EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB) const;
// Inline asm support
ConstraintType getConstraintType(const std::string &Constraint) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
+
std::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
EVT VT) const;