1 //===-- PPCISelLowering.h - PPC32 DAG Lowering Interface --------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines the interfaces that PPC uses to lower LLVM code into a
11 // selection DAG.
12 //
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
16 #define LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
18 #include "PPC.h"
19 #include "PPCRegisterInfo.h"
20 #include "PPCSubtarget.h"
21 #include "llvm/CodeGen/SelectionDAG.h"
22 #include "llvm/Target/TargetLowering.h"
24 namespace llvm {
25 namespace PPCISD {
26 enum NodeType {
27 // Start the numbering where the builtin ops and target ops leave off.
28 FIRST_NUMBER = ISD::BUILTIN_OP_END,
30 /// FSEL - Traditional three-operand fsel node.
31 ///
32 FSEL,
34 /// FCFID - The FCFID instruction, taking an f64 operand and producing
35 /// and f64 value containing the FP representation of the integer that
36 /// was temporarily in the f64 operand.
37 FCFID,
39 /// FCTI[D,W]Z - The FCTIDZ and FCTIWZ instructions, taking an f32 or f64
40 /// operand, producing an f64 value containing the integer representation
41 /// of that FP value.
42 FCTIDZ, FCTIWZ,
44 // VMADDFP, VNMSUBFP - The VMADDFP and VNMSUBFP instructions, taking
45 // three v4f32 operands and producing a v4f32 result.
46 VMADDFP, VNMSUBFP,
48 /// VPERM - The PPC VPERM Instruction.
49 ///
50 VPERM,
52 /// Hi/Lo - These represent the high and low 16-bit parts of a global
53 /// address respectively. These nodes have two operands, the first of
54 /// which must be a TargetGlobalAddress, and the second of which must be a
55 /// Constant. Selected naively, these turn into 'lis G+C' and 'li G+C',
56 /// though these are usually folded into other nodes.
57 Hi, Lo,
59 TOC_ENTRY,
61 /// The following three target-specific nodes are used for calls through
62 /// function pointers in the 64-bit SVR4 ABI.
64 /// Restore the TOC from the TOC save area of the current stack frame.
65 /// This is basically a hard coded load instruction which additionally
66 /// takes/produces a flag.
67 TOC_RESTORE,
69 /// Like a regular LOAD but additionally taking/producing a flag.
70 LOAD,
72 /// LOAD into r2 (also taking/producing a flag). Like TOC_RESTORE, this is
73 /// a hard coded load instruction.
74 LOAD_TOC,
76 /// OPRC, CHAIN = DYNALLOC(CHAIN, NEGSIZE, FRAME_INDEX)
77 /// This instruction is lowered in PPCRegisterInfo::eliminateFrameIndex to
78 /// compute an allocation on the stack.
79 DYNALLOC,
81 /// GlobalBaseReg - On Darwin, this node represents the result of the mflr
82 /// at function entry, used for PIC code.
83 GlobalBaseReg,
85 /// These nodes represent the 32-bit PPC shifts that operate on 6-bit
86 /// shift amounts. These nodes are generated by the multi-precision shift
87 /// code.
88 SRL, SRA, SHL,
90 /// CALL - A direct function call.
91 /// CALL_NOP is a call with the special NOP which follows 64-bit
92 /// SVR4 calls.
93 CALL, CALL_NOP,
95 /// CHAIN,FLAG = MTCTR(VAL, CHAIN[, INFLAG]) - Directly corresponds to a
96 /// MTCTR instruction.
97 MTCTR,
99 /// CHAIN,FLAG = BCTRL(CHAIN, INFLAG) - Directly corresponds to a
100 /// BCTRL instruction.
101 BCTRL,
103 /// Return with a flag operand, matched by 'blr'
104 RET_FLAG,
106 /// R32 = MFCR(CRREG, INFLAG) - Represents the MFCRpseud/MFOCRF
107 /// instructions. This copies the bits corresponding to the specified
108 /// CRREG into the resultant GPR. Bits corresponding to other CR regs
109 /// are undefined.
110 MFCR,
112 // EH_SJLJ_SETJMP - SjLj exception handling setjmp.
113 EH_SJLJ_SETJMP,
115 // EH_SJLJ_LONGJMP - SjLj exception handling longjmp.
116 EH_SJLJ_LONGJMP,
118 /// RESVEC = VCMP(LHS, RHS, OPC) - Represents one of the altivec VCMP*
119 /// instructions. For lack of better number, we use the opcode number
120 /// encoding for the OPC field to identify the compare. For example, 838
121 /// is VCMPGTSH.
122 VCMP,
124 /// RESVEC, OUTFLAG = VCMPo(LHS, RHS, OPC) - Represents one of the
125 /// altivec VCMP*o instructions. For lack of better number, we use the
126 /// opcode number encoding for the OPC field to identify the compare. For
127 /// example, 838 is VCMPGTSH.
128 VCMPo,
130 /// CHAIN = COND_BRANCH CHAIN, CRRC, OPC, DESTBB [, INFLAG] - This
131 /// corresponds to the COND_BRANCH pseudo instruction. CRRC is the
132 /// condition register to branch on, OPC is the branch opcode to use (e.g.
133 /// PPC::BLE), DESTBB is the destination block to branch to, and INFLAG is
134 /// an optional input flag argument.
135 COND_BRANCH,
137 /// F8RC = FADDRTZ F8RC, F8RC - This is an FADD done with rounding
138 /// towards zero. Used only as part of the long double-to-int
139 /// conversion sequence.
140 FADDRTZ,
142 /// F8RC = MFFS - This moves the FPSCR (not modeled) into the register.
143 MFFS,
145 /// LARX = This corresponds to PPC l{w|d}arx instrcution: load and
146 /// reserve indexed. This is used to implement atomic operations.
147 LARX,
149 /// STCX = This corresponds to PPC stcx. instrcution: store conditional
150 /// indexed. This is used to implement atomic operations.
151 STCX,
153 /// TC_RETURN - A tail call return.
154 /// operand #0 chain
155 /// operand #1 callee (register or absolute)
156 /// operand #2 stack adjustment
157 /// operand #3 optional in flag
158 TC_RETURN,
160 /// ch, gl = CR6[UN]SET ch, inglue - Toggle CR bit 6 for SVR4 vararg calls
161 CR6SET,
162 CR6UNSET,
164 /// G8RC = ADDIS_GOT_TPREL_HA %X2, Symbol - Used by the initial-exec
165 /// TLS model, produces an ADDIS8 instruction that adds the GOT
166 /// base to sym@got@tprel@ha.
167 ADDIS_GOT_TPREL_HA,
169 /// G8RC = LD_GOT_TPREL_L Symbol, G8RReg - Used by the initial-exec
170 /// TLS model, produces a LD instruction with base register G8RReg
171 /// and offset sym@got@tprel@l. This completes the addition that
172 /// finds the offset of "sym" relative to the thread pointer.
173 LD_GOT_TPREL_L,
175 /// G8RC = ADD_TLS G8RReg, Symbol - Used by the initial-exec TLS
176 /// model, produces an ADD instruction that adds the contents of
177 /// G8RReg to the thread pointer. Symbol contains a relocation
178 /// sym@tls which is to be replaced by the thread pointer and
179 /// identifies to the linker that the instruction is part of a
180 /// TLS sequence.
181 ADD_TLS,
183 /// G8RC = ADDIS_TLSGD_HA %X2, Symbol - For the general-dynamic TLS
184 /// model, produces an ADDIS8 instruction that adds the GOT base
185 /// register to sym@got@tlsgd@ha.
186 ADDIS_TLSGD_HA,
188 /// G8RC = ADDI_TLSGD_L G8RReg, Symbol - For the general-dynamic TLS
189 /// model, produces an ADDI8 instruction that adds G8RReg to
190 /// sym@got@tlsgd@l.
191 ADDI_TLSGD_L,
193 /// G8RC = GET_TLS_ADDR %X3, Symbol - For the general-dynamic TLS
194 /// model, produces a call to __tls_get_addr(sym@tlsgd).
195 GET_TLS_ADDR,
197 /// G8RC = ADDIS_TLSLD_HA %X2, Symbol - For the local-dynamic TLS
198 /// model, produces an ADDIS8 instruction that adds the GOT base
199 /// register to sym@got@tlsld@ha.
200 ADDIS_TLSLD_HA,
202 /// G8RC = ADDI_TLSLD_L G8RReg, Symbol - For the local-dynamic TLS
203 /// model, produces an ADDI8 instruction that adds G8RReg to
204 /// sym@got@tlsld@l.
205 ADDI_TLSLD_L,
207 /// G8RC = GET_TLSLD_ADDR %X3, Symbol - For the local-dynamic TLS
208 /// model, produces a call to __tls_get_addr(sym@tlsld).
209 GET_TLSLD_ADDR,
211 /// G8RC = ADDIS_DTPREL_HA %X3, Symbol, Chain - For the
212 /// local-dynamic TLS model, produces an ADDIS8 instruction
213 /// that adds X3 to sym@dtprel@ha. The Chain operand is needed
214 /// to tie this in place following a copy to %X3 from the result
215 /// of a GET_TLSLD_ADDR.
216 ADDIS_DTPREL_HA,
218 /// G8RC = ADDI_DTPREL_L G8RReg, Symbol - For the local-dynamic TLS
219 /// model, produces an ADDI8 instruction that adds G8RReg to
220 /// sym@got@dtprel@l.
221 ADDI_DTPREL_L,
223 /// VRRC = VADD_SPLAT Elt, EltSize - Temporary node to be expanded
224 /// during instruction selection to optimize a BUILD_VECTOR into
225 /// operations on splats. This is necessary to avoid losing these
226 /// optimizations due to constant folding.
227 VADD_SPLAT,
229 /// CHAIN = STBRX CHAIN, GPRC, Ptr, Type - This is a
230 /// byte-swapping store instruction. It byte-swaps the low "Type" bits of
231 /// the GPRC input, then stores it through Ptr. Type can be either i16 or
232 /// i32.
233 STBRX = ISD::FIRST_TARGET_MEMORY_OPCODE,
235 /// GPRC, CHAIN = LBRX CHAIN, Ptr, Type - This is a
236 /// byte-swapping load instruction. It loads "Type" bits, byte swaps it,
237 /// then puts it in the bottom bits of the GPRC. TYPE can be either i16
238 /// or i32.
239 LBRX,
241 /// STFIWX - The STFIWX instruction. The first operand is an input token
242 /// chain, then an f64 value to store, then an address to store it to.
243 STFIWX,
245 /// GPRC, CHAIN = LFIWAX CHAIN, Ptr - This is a floating-point
246 /// load which sign-extends from a 32-bit integer value into the
247 /// destination 64-bit register.
248 LFIWAX,
250 /// G8RC = ADDIS_TOC_HA %X2, Symbol - For medium and large code model,
251 /// produces an ADDIS8 instruction that adds the TOC base register to
252 /// sym@toc@ha.
253 ADDIS_TOC_HA,
255 /// G8RC = LD_TOC_L Symbol, G8RReg - For medium and large code model,
256 /// produces a LD instruction with base register G8RReg and offset
257 /// sym@toc@l. Preceded by an ADDIS_TOC_HA to form a full 32-bit offset.
258 LD_TOC_L,
260 /// G8RC = ADDI_TOC_L G8RReg, Symbol - For medium code model, produces
261 /// an ADDI8 instruction that adds G8RReg to sym@toc@l.
262 /// Preceded by an ADDIS_TOC_HA to form a full 32-bit offset.
263 ADDI_TOC_L
264 };
265 }
267 /// Define some predicates that are used for node matching.
268 namespace PPC {
269 /// isVPKUHUMShuffleMask - Return true if this is the shuffle mask for a
270 /// VPKUHUM instruction.
271 bool isVPKUHUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
273 /// isVPKUWUMShuffleMask - Return true if this is the shuffle mask for a
274 /// VPKUWUM instruction.
275 bool isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
277 /// isVMRGLShuffleMask - Return true if this is a shuffle mask suitable for
278 /// a VRGL* instruction with the specified unit size (1,2 or 4 bytes).
279 bool isVMRGLShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
280 bool isUnary);
282 /// isVMRGHShuffleMask - Return true if this is a shuffle mask suitable for
283 /// a VRGH* instruction with the specified unit size (1,2 or 4 bytes).
284 bool isVMRGHShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
285 bool isUnary);
287 /// isVSLDOIShuffleMask - If this is a vsldoi shuffle mask, return the shift
288 /// amount, otherwise return -1.
289 int isVSLDOIShuffleMask(SDNode *N, bool isUnary);
291 /// isSplatShuffleMask - Return true if the specified VECTOR_SHUFFLE operand
292 /// specifies a splat of a single element that is suitable for input to
293 /// VSPLTB/VSPLTH/VSPLTW.
294 bool isSplatShuffleMask(ShuffleVectorSDNode *N, unsigned EltSize);
296 /// isAllNegativeZeroVector - Returns true if all elements of build_vector
297 /// are -0.0.
298 bool isAllNegativeZeroVector(SDNode *N);
300 /// getVSPLTImmediate - Return the appropriate VSPLT* immediate to splat the
301 /// specified isSplatShuffleMask VECTOR_SHUFFLE mask.
302 unsigned getVSPLTImmediate(SDNode *N, unsigned EltSize);
304 /// get_VSPLTI_elt - If this is a build_vector of constants which can be
305 /// formed by using a vspltis[bhw] instruction of the specified element
306 /// size, return the constant being splatted. The ByteSize field indicates
307 /// the number of bytes of each element [124] -> [bhw].
308 SDValue get_VSPLTI_elt(SDNode *N, unsigned ByteSize, SelectionDAG &DAG);
309 }
311 class PPCTargetLowering : public TargetLowering {
312 const PPCSubtarget &PPCSubTarget;
313 const PPCRegisterInfo *PPCRegInfo;
315 public:
316 explicit PPCTargetLowering(PPCTargetMachine &TM);
318 /// getTargetNodeName() - This method returns the name of a target specific
319 /// DAG node.
320 virtual const char *getTargetNodeName(unsigned Opcode) const;
322 virtual MVT getScalarShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
324 /// getSetCCResultType - Return the ISD::SETCC ValueType
325 virtual EVT getSetCCResultType(EVT VT) const;
327 /// getPreIndexedAddressParts - returns true by value, base pointer and
328 /// offset pointer and addressing mode by reference if the node's address
329 /// can be legally represented as pre-indexed load / store address.
330 virtual bool getPreIndexedAddressParts(SDNode *N, SDValue &Base,
331 SDValue &Offset,
332 ISD::MemIndexedMode &AM,
333 SelectionDAG &DAG) const;
335 /// SelectAddressRegReg - Given the specified addressed, check to see if it
336 /// can be represented as an indexed [r+r] operation. Returns false if it
337 /// can be more efficiently represented with [r+imm].
338 bool SelectAddressRegReg(SDValue N, SDValue &Base, SDValue &Index,
339 SelectionDAG &DAG) const;
341 /// SelectAddressRegImm - Returns true if the address N can be represented
342 /// by a base register plus a signed 16-bit displacement [r+imm], and if it
343 /// is not better represented as reg+reg.
344 bool SelectAddressRegImm(SDValue N, SDValue &Disp, SDValue &Base,
345 SelectionDAG &DAG) const;
347 /// SelectAddressRegRegOnly - Given the specified addressed, force it to be
348 /// represented as an indexed [r+r] operation.
349 bool SelectAddressRegRegOnly(SDValue N, SDValue &Base, SDValue &Index,
350 SelectionDAG &DAG) const;
352 /// SelectAddressRegImmShift - Returns true if the address N can be
353 /// represented by a base register plus a signed 14-bit displacement
354 /// [r+imm*4]. Suitable for use by STD and friends.
355 bool SelectAddressRegImmShift(SDValue N, SDValue &Disp, SDValue &Base,
356 SelectionDAG &DAG) const;
358 Sched::Preference getSchedulingPreference(SDNode *N) const;
360 /// LowerOperation - Provide custom lowering hooks for some operations.
361 ///
362 virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
364 /// ReplaceNodeResults - Replace the results of node with an illegal result
365 /// type with new values built out of custom code.
366 ///
367 virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
368 SelectionDAG &DAG) const;
370 virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
372 virtual void computeMaskedBitsForTargetNode(const SDValue Op,
373 APInt &KnownZero,
374 APInt &KnownOne,
375 const SelectionDAG &DAG,
376 unsigned Depth = 0) const;
378 virtual MachineBasicBlock *
379 EmitInstrWithCustomInserter(MachineInstr *MI,
380 MachineBasicBlock *MBB) const;
381 MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI,
382 MachineBasicBlock *MBB, bool is64Bit,
383 unsigned BinOpcode) const;
384 MachineBasicBlock *EmitPartwordAtomicBinary(MachineInstr *MI,
385 MachineBasicBlock *MBB,
386 bool is8bit, unsigned Opcode) const;
388 MachineBasicBlock *emitEHSjLjSetJmp(MachineInstr *MI,
389 MachineBasicBlock *MBB) const;
391 MachineBasicBlock *emitEHSjLjLongJmp(MachineInstr *MI,
392 MachineBasicBlock *MBB) const;
394 ConstraintType getConstraintType(const std::string &Constraint) const;
396 /// Examine constraint string and operand type and determine a weight value.
397 /// The operand object must already have been set up with the operand type.
398 ConstraintWeight getSingleConstraintMatchWeight(
399 AsmOperandInfo &info, const char *constraint) const;
401 std::pair<unsigned, const TargetRegisterClass*>
402 getRegForInlineAsmConstraint(const std::string &Constraint,
403 EVT VT) const;
405 /// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
406 /// function arguments in the caller parameter area. This is the actual
407 /// alignment, not its logarithm.
408 unsigned getByValTypeAlignment(Type *Ty) const;
410 /// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
411 /// vector. If it is invalid, don't add anything to Ops.
412 virtual void LowerAsmOperandForConstraint(SDValue Op,
413 std::string &Constraint,
414 std::vector<SDValue> &Ops,
415 SelectionDAG &DAG) const;
417 /// isLegalAddressingMode - Return true if the addressing mode represented
418 /// by AM is legal for this target, for a load/store of the specified type.
419 virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty)const;
421 /// isLegalAddressImmediate - Return true if the integer value can be used
422 /// as the offset of the target addressing mode for load / store of the
423 /// given type.
424 virtual bool isLegalAddressImmediate(int64_t V, Type *Ty) const;
426 /// isLegalAddressImmediate - Return true if the GlobalValue can be used as
427 /// the offset of the target addressing mode.
428 virtual bool isLegalAddressImmediate(GlobalValue *GV) const;
430 virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
432 /// getOptimalMemOpType - Returns the target specific optimal type for load
433 /// and store operations as a result of memset, memcpy, and memmove
434 /// lowering. If DstAlign is zero that means it's safe to destination
435 /// alignment can satisfy any constraint. Similarly if SrcAlign is zero it
436 /// means there isn't a need to check it against alignment requirement,
437 /// probably because the source does not need to be loaded. If 'IsMemset' is
438 /// true, that means it's expanding a memset. If 'ZeroMemset' is true, that
439 /// means it's a memset of zero. 'MemcpyStrSrc' indicates whether the memcpy
440 /// source is constant so it does not need to be loaded.
441 /// It returns EVT::Other if the type should be determined using generic
442 /// target-independent logic.
443 virtual EVT
444 getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign,
445 bool IsMemset, bool ZeroMemset, bool MemcpyStrSrc,
446 MachineFunction &MF) const;
448 /// Is unaligned memory access allowed for the given type, and is it fast
449 /// relative to software emulation.
450 virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast = 0) const;
452 /// isFMAFasterThanMulAndAdd - Return true if an FMA operation is faster than
453 /// a pair of mul and add instructions. fmuladd intrinsics will be expanded to
454 /// FMAs when this method returns true (and FMAs are legal), otherwise fmuladd
455 /// is expanded to mul + add.
456 virtual bool isFMAFasterThanMulAndAdd(EVT VT) const;
458 private:
459 SDValue getFramePointerFrameIndex(SelectionDAG & DAG) const;
460 SDValue getReturnAddrFrameIndex(SelectionDAG & DAG) const;
462 bool
463 IsEligibleForTailCallOptimization(SDValue Callee,
464 CallingConv::ID CalleeCC,
465 bool isVarArg,
466 const SmallVectorImpl<ISD::InputArg> &Ins,
467 SelectionDAG& DAG) const;
469 SDValue EmitTailCallLoadFPAndRetAddr(SelectionDAG & DAG,
470 int SPDiff,
471 SDValue Chain,
472 SDValue &LROpOut,
473 SDValue &FPOpOut,
474 bool isDarwinABI,
475 DebugLoc dl) const;
477 SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
478 SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
479 SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
480 SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
481 SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
482 SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
483 SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
484 SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
485 SDValue LowerINIT_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
486 SDValue LowerADJUST_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
487 SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
488 const PPCSubtarget &Subtarget) const;
489 SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG,
490 const PPCSubtarget &Subtarget) const;
491 SDValue LowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG,
492 const PPCSubtarget &Subtarget) const;
493 SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG,
494 const PPCSubtarget &Subtarget) const;
495 SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
496 SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG, DebugLoc dl) const;
497 SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) const;
498 SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG) const;
499 SDValue LowerSHL_PARTS(SDValue Op, SelectionDAG &DAG) const;
500 SDValue LowerSRL_PARTS(SDValue Op, SelectionDAG &DAG) const;
501 SDValue LowerSRA_PARTS(SDValue Op, SelectionDAG &DAG) const;
502 SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
503 SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
504 SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
505 SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const;
506 SDValue LowerMUL(SDValue Op, SelectionDAG &DAG) const;
508 SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
509 CallingConv::ID CallConv, bool isVarArg,
510 const SmallVectorImpl<ISD::InputArg> &Ins,
511 DebugLoc dl, SelectionDAG &DAG,
512 SmallVectorImpl<SDValue> &InVals) const;
513 SDValue FinishCall(CallingConv::ID CallConv, DebugLoc dl, bool isTailCall,
514 bool isVarArg,
515 SelectionDAG &DAG,
516 SmallVector<std::pair<unsigned, SDValue>, 8>
517 &RegsToPass,
518 SDValue InFlag, SDValue Chain,
519 SDValue &Callee,
520 int SPDiff, unsigned NumBytes,
521 const SmallVectorImpl<ISD::InputArg> &Ins,
522 SmallVectorImpl<SDValue> &InVals) const;
524 virtual SDValue
525 LowerFormalArguments(SDValue Chain,
526 CallingConv::ID CallConv, bool isVarArg,
527 const SmallVectorImpl<ISD::InputArg> &Ins,
528 DebugLoc dl, SelectionDAG &DAG,
529 SmallVectorImpl<SDValue> &InVals) const;
531 virtual SDValue
532 LowerCall(TargetLowering::CallLoweringInfo &CLI,
533 SmallVectorImpl<SDValue> &InVals) const;
535 virtual bool
536 CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
537 bool isVarArg,
538 const SmallVectorImpl<ISD::OutputArg> &Outs,
539 LLVMContext &Context) const;
541 virtual SDValue
542 LowerReturn(SDValue Chain,
543 CallingConv::ID CallConv, bool isVarArg,
544 const SmallVectorImpl<ISD::OutputArg> &Outs,
545 const SmallVectorImpl<SDValue> &OutVals,
546 DebugLoc dl, SelectionDAG &DAG) const;
548 SDValue
549 extendArgForPPC64(ISD::ArgFlagsTy Flags, EVT ObjectVT, SelectionDAG &DAG,
550 SDValue ArgVal, DebugLoc dl) const;
552 void
553 setMinReservedArea(MachineFunction &MF, SelectionDAG &DAG,
554 unsigned nAltivecParamsAtEnd,
555 unsigned MinReservedArea, bool isPPC64) const;
557 SDValue
558 LowerFormalArguments_Darwin(SDValue Chain,
559 CallingConv::ID CallConv, bool isVarArg,
560 const SmallVectorImpl<ISD::InputArg> &Ins,
561 DebugLoc dl, SelectionDAG &DAG,
562 SmallVectorImpl<SDValue> &InVals) const;
563 SDValue
564 LowerFormalArguments_64SVR4(SDValue Chain,
565 CallingConv::ID CallConv, bool isVarArg,
566 const SmallVectorImpl<ISD::InputArg> &Ins,
567 DebugLoc dl, SelectionDAG &DAG,
568 SmallVectorImpl<SDValue> &InVals) const;
569 SDValue
570 LowerFormalArguments_32SVR4(SDValue Chain,
571 CallingConv::ID CallConv, bool isVarArg,
572 const SmallVectorImpl<ISD::InputArg> &Ins,
573 DebugLoc dl, SelectionDAG &DAG,
574 SmallVectorImpl<SDValue> &InVals) const;
576 SDValue
577 createMemcpyOutsideCallSeq(SDValue Arg, SDValue PtrOff,
578 SDValue CallSeqStart, ISD::ArgFlagsTy Flags,
579 SelectionDAG &DAG, DebugLoc dl) const;
581 SDValue
582 LowerCall_Darwin(SDValue Chain, SDValue Callee,
583 CallingConv::ID CallConv,
584 bool isVarArg, bool isTailCall,
585 const SmallVectorImpl<ISD::OutputArg> &Outs,
586 const SmallVectorImpl<SDValue> &OutVals,
587 const SmallVectorImpl<ISD::InputArg> &Ins,
588 DebugLoc dl, SelectionDAG &DAG,
589 SmallVectorImpl<SDValue> &InVals) const;
590 SDValue
591 LowerCall_64SVR4(SDValue Chain, SDValue Callee,
592 CallingConv::ID CallConv,
593 bool isVarArg, bool isTailCall,
594 const SmallVectorImpl<ISD::OutputArg> &Outs,
595 const SmallVectorImpl<SDValue> &OutVals,
596 const SmallVectorImpl<ISD::InputArg> &Ins,
597 DebugLoc dl, SelectionDAG &DAG,
598 SmallVectorImpl<SDValue> &InVals) const;
599 SDValue
600 LowerCall_32SVR4(SDValue Chain, SDValue Callee, CallingConv::ID CallConv,
601 bool isVarArg, bool isTailCall,
602 const SmallVectorImpl<ISD::OutputArg> &Outs,
603 const SmallVectorImpl<SDValue> &OutVals,
604 const SmallVectorImpl<ISD::InputArg> &Ins,
605 DebugLoc dl, SelectionDAG &DAG,
606 SmallVectorImpl<SDValue> &InVals) const;
608 SDValue lowerEH_SJLJ_SETJMP(SDValue Op, SelectionDAG &DAG) const;
609 SDValue lowerEH_SJLJ_LONGJMP(SDValue Op, SelectionDAG &DAG) const;
610 };
611 }
613 #endif // LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H