FCTIDZ, FCTIWZ,
/// STFIWX - The STFIWX instruction. The first operand is an input token
- /// chain, then an f64 value to store, then an address to store it to,
- /// then a SRCVALUE for the address.
+ /// chain, then an f64 value to store, then an address to store it to.
STFIWX,
// VMADDFP, VNMSUBFP - The VMADDFP and VNMSUBFP instructions, taking
/// though these are usually folded into other nodes.
Hi, Lo,
+ TOC_ENTRY,
+
+ /// The following three target-specific nodes are used for calls through
+ /// function pointers in the 64-bit SVR4 ABI.
+
+ /// Restore the TOC from the TOC save area of the current stack frame.
+ /// This is basically a hard coded load instruction which additionally
+ /// takes/produces a flag.
+ TOC_RESTORE,
+
+ /// Like a regular LOAD but additionally taking/producing a flag.
+ LOAD,
+
+ /// LOAD into r2 (also taking/producing a flag). Like TOC_RESTORE, this is
+ /// a hard coded load instruction.
+ LOAD_TOC,
+
/// OPRC, CHAIN = DYNALLOC(CHAIN, NEGSIZE, FRAME_INDEX)
/// This instruction is lowered in PPCRegisterInfo::eliminateFrameIndex to
/// compute an allocation on the stack.
/// registers.
EXTSW_32,
- /// STD_32 - This is the STD instruction for use with "32-bit" registers.
- STD_32,
-
/// CALL - A direct function call.
CALL_Darwin, CALL_SVR4,
+ /// NOP - Special NOP which follows 64-bit SVR4 calls.
+ NOP,
+
/// CHAIN,FLAG = MTCTR(VAL, CHAIN[, INFLAG]) - Directly corresponds to a
/// MTCTR instruction.
MTCTR,
/// Return with a flag operand, matched by 'blr'
RET_FLAG,
- /// R32 = MFCR(CRREG, INFLAG) - Represents the MFCR/MFOCRF instructions.
- /// This copies the bits corresponding to the specified CRREG into the
- /// resultant GPR. Bits corresponding to other CR regs are undefined.
+ /// R32 = MFCR(CRREG, INFLAG) - Represents the MFCRpseud/MFOCRF
+ /// instructions. This copies the bits corresponding to the specified
+ /// CRREG into the resultant GPR. Bits corresponding to other CR regs
+ /// are undefined.
MFCR,
/// RESVEC = VCMP(LHS, RHS, OPC) - Represents one of the altivec VCMP*
/// an optional input flag argument.
COND_BRANCH,
- /// CHAIN = STBRX CHAIN, GPRC, Ptr, SRCVALUE, Type - This is a
- /// byte-swapping store instruction. It byte-swaps the low "Type" bits of
- /// the GPRC input, then stores it through Ptr. Type can be either i16 or
- /// i32.
- STBRX,
-
- /// GPRC, CHAIN = LBRX CHAIN, Ptr, SRCVALUE, Type - This is a
- /// byte-swapping load instruction. It loads "Type" bits, byte swaps it,
- /// then puts it in the bottom bits of the GPRC. TYPE can be either i16
- /// or i32.
- LBRX,
-
// The following 5 instructions are used only as part of the
// long double-to-int conversion sequence.
/// operand #1 callee (register or absolute)
/// operand #2 stack adjustment
/// operand #3 optional in flag
- TC_RETURN
+ TC_RETURN,
+
+ /// STD_32 - This is the STD instruction for use with "32-bit" registers.
+ STD_32 = ISD::FIRST_TARGET_MEMORY_OPCODE,
+
+ /// CHAIN = STBRX CHAIN, GPRC, Ptr, Type - This is a
+ /// byte-swapping store instruction. It byte-swaps the low "Type" bits of
+ /// the GPRC input, then stores it through Ptr. Type can be either i16 or
+ /// i32.
+ STBRX,
+
+ /// GPRC, CHAIN = LBRX CHAIN, Ptr, Type - This is a
+ /// byte-swapping load instruction. It loads "Type" bits, byte swaps it,
+ /// then puts it in the bottom bits of the GPRC. TYPE can be either i16
+ /// or i32.
+ LBRX
};
}
}
class PPCTargetLowering : public TargetLowering {
- int VarArgsFrameIndex; // FrameIndex for start of varargs area.
- int VarArgsStackOffset; // StackOffset for start of stack
- // arguments.
- unsigned VarArgsNumGPR; // Index of the first unused integer
- // register for parameter passing.
- unsigned VarArgsNumFPR; // Index of the first unused double
- // register for parameter passing.
const PPCSubtarget &PPCSubTarget;
+
public:
explicit PPCTargetLowering(PPCTargetMachine &TM);
/// LowerOperation - Provide custom lowering hooks for some operations.
///
- virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
/// ReplaceNodeResults - Replace the results of node with an illegal result
/// type with new values built out of custom code.
///
virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
- SelectionDAG &DAG);
+ SelectionDAG &DAG) const;
virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
const SelectionDAG &DAG,
unsigned Depth = 0) const;
- virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *MBB) const;
+ virtual MachineBasicBlock *
+ EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB) const;
MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI,
MachineBasicBlock *MBB, bool is64Bit,
unsigned BinOpcode) const;
unsigned getByValTypeAlignment(const Type *Ty) const;
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
- /// vector. If it is invalid, don't add anything to Ops. If hasMemory is
- /// true it means one of the asm constraint of the inline asm instruction
- /// being processed is 'm'.
+ /// vector. If it is invalid, don't add anything to Ops.
virtual void LowerAsmOperandForConstraint(SDValue Op,
char ConstraintLetter,
- bool hasMemory,
std::vector<SDValue> &Ops,
SelectionDAG &DAG) const;
/// the offset of the target addressing mode.
virtual bool isLegalAddressImmediate(GlobalValue *GV) const;
- virtual bool
- IsEligibleForTailCallOptimization(SDValue Callee,
- unsigned CalleeCC,
- bool isVarArg,
- const SmallVectorImpl<ISD::InputArg> &Ins,
- SelectionDAG& DAG) const;
-
virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
- virtual EVT getOptimalMemOpType(uint64_t Size, unsigned Align,
- bool isSrcConst, bool isSrcStr,
- SelectionDAG &DAG) const;
+ /// getOptimalMemOpType - Returns the target specific optimal type for load
+ /// and store operations as a result of memset, memcpy, and memmove
+ /// lowering. If DstAlign is zero that means it's safe to destination
+ /// alignment can satisfy any constraint. Similarly if SrcAlign is zero it
+ /// means there isn't a need to check it against alignment requirement,
+ /// probably because the source does not need to be loaded. If
+ /// 'NonScalarIntSafe' is true, that means it's safe to return a
+ /// non-scalar-integer type, e.g. empty string source, constant, or loaded
+ /// from memory. 'MemcpyStrSrc' indicates whether the memcpy source is
+ /// constant so it does not need to be loaded.
+ /// It returns EVT::Other if the type should be determined using generic
+ /// target-independent logic.
+ virtual EVT
+ getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign,
+ bool NonScalarIntSafe, bool MemcpyStrSrc,
+ MachineFunction &MF) const;
/// getFunctionAlignment - Return the Log2 alignment of this function.
virtual unsigned getFunctionAlignment(const Function *F) const;
SDValue getFramePointerFrameIndex(SelectionDAG & DAG) const;
SDValue getReturnAddrFrameIndex(SelectionDAG & DAG) const;
+ bool
+ IsEligibleForTailCallOptimization(SDValue Callee,
+ CallingConv::ID CalleeCC,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ SelectionDAG& DAG) const;
+
SDValue EmitTailCallLoadFPAndRetAddr(SelectionDAG & DAG,
int SPDiff,
SDValue Chain,
SDValue &LROpOut,
SDValue &FPOpOut,
bool isDarwinABI,
- DebugLoc dl);
-
- SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG);
- 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 LowerSETCC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG);
+ DebugLoc dl) const;
+
+ SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBlockAddress(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 LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerTRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
- int VarArgsFrameIndex, int VarArgsStackOffset,
- unsigned VarArgsNumGPR, unsigned VarArgsNumFPR,
- const PPCSubtarget &Subtarget);
- SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG, int VarArgsFrameIndex,
- int VarArgsStackOffset, unsigned VarArgsNumGPR,
- unsigned VarArgsNumFPR, const PPCSubtarget &Subtarget);
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG,
+ const PPCSubtarget &Subtarget) const;
SDValue LowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG,
- const PPCSubtarget &Subtarget);
+ const PPCSubtarget &Subtarget) const;
SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG,
- const PPCSubtarget &Subtarget);
- SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG, DebugLoc dl);
- SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSHL_PARTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSRL_PARTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSRA_PARTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG);
- SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerMUL(SDValue Op, SelectionDAG &DAG);
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG, DebugLoc dl) const;
+ SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSHL_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSRL_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSRA_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMUL(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
- unsigned CallConv, bool isVarArg,
+ CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
- SDValue FinishCall(unsigned CallConv, DebugLoc dl, bool isTailCall,
+ SmallVectorImpl<SDValue> &InVals) const;
+ SDValue FinishCall(CallingConv::ID CallConv, DebugLoc dl, bool isTailCall,
bool isVarArg,
SelectionDAG &DAG,
SmallVector<std::pair<unsigned, SDValue>, 8>
SDValue &Callee,
int SPDiff, unsigned NumBytes,
const SmallVectorImpl<ISD::InputArg> &Ins,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
virtual SDValue
LowerFormalArguments(SDValue Chain,
- unsigned CallConv, bool isVarArg,
+ 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,
- unsigned CallConv, bool isVarArg, bool isTailCall,
+ 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,
- unsigned CallConv, bool isVarArg,
+ CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
- DebugLoc dl, SelectionDAG &DAG);
+ const SmallVectorImpl<SDValue> &OutVals,
+ DebugLoc dl, SelectionDAG &DAG) const;
SDValue
LowerFormalArguments_Darwin(SDValue Chain,
- unsigned CallConv, bool isVarArg,
+ CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
SDValue
LowerFormalArguments_SVR4(SDValue Chain,
- unsigned CallConv, bool isVarArg,
+ CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals);
+ SmallVectorImpl<SDValue> &InVals) const;
SDValue
LowerCall_Darwin(SDValue Chain, SDValue Callee,
- unsigned CallConv, bool isVarArg, bool isTailCall,
+ 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;
SDValue
LowerCall_SVR4(SDValue Chain, SDValue Callee,
- unsigned CallConv, bool isVarArg, bool isTailCall,
+ 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;
};
}
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