#define LLVM_TARGET_SystemZ_ISELLOWERING_H
#include "SystemZ.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetLowering.h"
virtual MVT getScalarShiftAmountTy(EVT LHSTy) const LLVM_OVERRIDE {
return MVT::i32;
}
- virtual EVT getSetCCResultType(EVT VT) const {
+ virtual EVT getSetCCResultType(LLVMContext &, EVT) const {
return MVT::i32;
}
virtual bool isFMAFasterThanMulAndAdd(EVT) const LLVM_OVERRIDE {
return true;
}
virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
+ virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const;
virtual const char *getTargetNodeName(unsigned Opcode) const LLVM_OVERRIDE;
virtual std::pair<unsigned, const TargetRegisterClass *>
getRegForInlineAsmConstraint(const std::string &Constraint,
LowerFormalArguments(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
- DebugLoc DL, SelectionDAG &DAG,
+ SDLoc DL, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const LLVM_OVERRIDE;
virtual SDValue
LowerCall(CallLoweringInfo &CLI,
CallingConv::ID CallConv, bool IsVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
- DebugLoc DL, SelectionDAG &DAG) const LLVM_OVERRIDE;
+ SDLoc DL, SelectionDAG &DAG) const LLVM_OVERRIDE;
private:
const SystemZSubtarget &Subtarget;
SDValue lowerSTACKSAVE(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG) const;
+ // If the last instruction before MBBI in MBB was some form of COMPARE,
+ // try to replace it with a COMPARE AND BRANCH just before MBBI.
+ // CCMask and Target are the BRC-like operands for the branch.
+ // Return true if the change was made.
+ bool convertPrevCompareToBranch(MachineBasicBlock *MBB,
+ MachineBasicBlock::iterator MBBI,
+ unsigned CCMask,
+ MachineBasicBlock *Target) const;
+
// Implement EmitInstrWithCustomInserter for individual operation types.
MachineBasicBlock *emitSelect(MachineInstr *MI,
MachineBasicBlock *BB) const;