1 //===-- AlphaISelLowering.cpp - Alpha DAG Lowering Implementation ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by Andrew Lenharth and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the AlphaISelLowering class.
12 //===----------------------------------------------------------------------===//
14 #include "AlphaISelLowering.h"
15 #include "AlphaTargetMachine.h"
16 #include "llvm/CodeGen/MachineFrameInfo.h"
17 #include "llvm/CodeGen/MachineFunction.h"
18 #include "llvm/CodeGen/MachineInstrBuilder.h"
19 #include "llvm/CodeGen/SelectionDAG.h"
20 #include "llvm/CodeGen/SSARegMap.h"
21 #include "llvm/Constants.h"
22 #include "llvm/Function.h"
23 #include "llvm/Module.h"
24 #include "llvm/Support/CommandLine.h"
30 cl::opt<bool> EnableAlphaLSMark("enable-alpha-lsmark",
31 cl::desc("Emit symbols to correlate Mem ops to LLVM Values"),
35 /// AddLiveIn - This helper function adds the specified physical register to the
36 /// MachineFunction as a live in value. It also creates a corresponding virtual
38 static unsigned AddLiveIn(MachineFunction &MF, unsigned PReg,
39 TargetRegisterClass *RC) {
40 assert(RC->contains(PReg) && "Not the correct regclass!");
41 unsigned VReg = MF.getSSARegMap()->createVirtualRegister(RC);
42 MF.addLiveIn(PReg, VReg);
46 AlphaTargetLowering::AlphaTargetLowering(TargetMachine &TM) : TargetLowering(TM) {
47 // Set up the TargetLowering object.
48 //I am having problems with shr n ubyte 1
49 setShiftAmountType(MVT::i64);
50 setSetCCResultType(MVT::i64);
51 setSetCCResultContents(ZeroOrOneSetCCResult);
53 addRegisterClass(MVT::i64, Alpha::GPRCRegisterClass);
54 addRegisterClass(MVT::f64, Alpha::F8RCRegisterClass);
55 addRegisterClass(MVT::f32, Alpha::F4RCRegisterClass);
57 setOperationAction(ISD::BRCONDTWOWAY, MVT::Other, Expand);
58 setOperationAction(ISD::BRTWOWAY_CC, MVT::Other, Expand);
60 setOperationAction(ISD::EXTLOAD, MVT::i1, Promote);
61 setOperationAction(ISD::EXTLOAD, MVT::f32, Expand);
63 setOperationAction(ISD::ZEXTLOAD, MVT::i1, Promote);
64 setOperationAction(ISD::ZEXTLOAD, MVT::i32, Expand);
66 setOperationAction(ISD::SEXTLOAD, MVT::i1, Promote);
67 setOperationAction(ISD::SEXTLOAD, MVT::i8, Expand);
68 setOperationAction(ISD::SEXTLOAD, MVT::i16, Expand);
70 setOperationAction(ISD::TRUNCSTORE, MVT::i1, Promote);
72 if (EnableAlphaLSMark) {
73 setOperationAction(ISD::LOAD, MVT::i64, Custom);
74 setOperationAction(ISD::LOAD, MVT::f64, Custom);
75 setOperationAction(ISD::LOAD, MVT::f32, Custom);
77 setOperationAction(ISD::ZEXTLOAD, MVT::i8, Custom);
78 setOperationAction(ISD::ZEXTLOAD, MVT::i16, Custom);
79 setOperationAction(ISD::SEXTLOAD, MVT::i32, Custom);
81 setOperationAction(ISD::EXTLOAD, MVT::i8, Custom);
82 setOperationAction(ISD::EXTLOAD, MVT::i16, Custom);
83 setOperationAction(ISD::EXTLOAD, MVT::i32, Custom);
86 setOperationAction(ISD::FREM, MVT::f32, Expand);
87 setOperationAction(ISD::FREM, MVT::f64, Expand);
89 setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand);
90 setOperationAction(ISD::SINT_TO_FP, MVT::i64, Custom);
91 setOperationAction(ISD::FP_TO_UINT, MVT::i64, Expand);
92 setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);
94 if (!TM.getSubtarget<AlphaSubtarget>().hasCT()) {
95 setOperationAction(ISD::CTPOP , MVT::i64 , Expand);
96 setOperationAction(ISD::CTTZ , MVT::i64 , Expand);
97 setOperationAction(ISD::CTLZ , MVT::i64 , Expand);
99 setOperationAction(ISD::BSWAP , MVT::i64, Expand);
100 setOperationAction(ISD::ROTL , MVT::i64, Expand);
101 setOperationAction(ISD::ROTR , MVT::i64, Expand);
103 setOperationAction(ISD::SREM , MVT::i64, Custom);
104 setOperationAction(ISD::UREM , MVT::i64, Custom);
105 setOperationAction(ISD::SDIV , MVT::i64, Custom);
106 setOperationAction(ISD::UDIV , MVT::i64, Custom);
108 setOperationAction(ISD::MEMMOVE , MVT::Other, Expand);
109 setOperationAction(ISD::MEMSET , MVT::Other, Expand);
110 setOperationAction(ISD::MEMCPY , MVT::Other, Expand);
112 // We don't support sin/cos/sqrt
113 setOperationAction(ISD::FSIN , MVT::f64, Expand);
114 setOperationAction(ISD::FCOS , MVT::f64, Expand);
115 setOperationAction(ISD::FSIN , MVT::f32, Expand);
116 setOperationAction(ISD::FCOS , MVT::f32, Expand);
118 setOperationAction(ISD::FSQRT, MVT::f64, Expand);
119 setOperationAction(ISD::FSQRT, MVT::f32, Expand);
121 setOperationAction(ISD::SETCC, MVT::f32, Promote);
123 // We don't have line number support yet.
124 setOperationAction(ISD::LOCATION, MVT::Other, Expand);
125 setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
126 setOperationAction(ISD::DEBUG_LABEL, MVT::Other, Expand);
128 // Not implemented yet.
129 setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
130 setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
131 setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i64, Expand);
133 // We want to legalize GlobalAddress and ConstantPool and
134 // ExternalSymbols nodes into the appropriate instructions to
135 // materialize the address.
136 setOperationAction(ISD::GlobalAddress, MVT::i64, Custom);
137 setOperationAction(ISD::ConstantPool, MVT::i64, Custom);
138 setOperationAction(ISD::ExternalSymbol, MVT::i64, Custom);
140 setOperationAction(ISD::VASTART, MVT::Other, Custom);
141 setOperationAction(ISD::VAEND, MVT::Other, Expand);
142 setOperationAction(ISD::VACOPY, MVT::Other, Custom);
143 setOperationAction(ISD::VAARG, MVT::Other, Custom);
145 setStackPointerRegisterToSaveRestore(Alpha::R30);
147 addLegalFPImmediate(+0.0); //F31
148 addLegalFPImmediate(-0.0); //-F31
150 computeRegisterProperties();
152 useITOF = TM.getSubtarget<AlphaSubtarget>().hasF2I();
155 const char *AlphaTargetLowering::getTargetNodeName(unsigned Opcode) const {
158 case AlphaISD::ITOFT_: return "Alpha::ITOFT_";
159 case AlphaISD::FTOIT_: return "Alpha::FTOIT_";
160 case AlphaISD::CVTQT_: return "Alpha::CVTQT_";
161 case AlphaISD::CVTQS_: return "Alpha::CVTQS_";
162 case AlphaISD::CVTTQ_: return "Alpha::CVTTQ_";
163 case AlphaISD::GPRelHi: return "Alpha::GPRelHi";
164 case AlphaISD::GPRelLo: return "Alpha::GPRelLo";
165 case AlphaISD::RelLit: return "Alpha::RelLit";
166 case AlphaISD::GlobalBaseReg: return "Alpha::GlobalBaseReg";
167 case AlphaISD::DivCall: return "Alpha::DivCall";
168 case AlphaISD::LDQ_: return "Alpha::LDQ_";
169 case AlphaISD::LDT_: return "Alpha::LDT_";
170 case AlphaISD::LDS_: return "Alpha::LDS_";
171 case AlphaISD::LDL_: return "Alpha::LDL_";
172 case AlphaISD::LDWU_: return "Alpha::LDWU_";
173 case AlphaISD::LDBU_: return "Alpha::LDBU_";
174 case AlphaISD::STQ_: return "Alpha::STQ_";
175 case AlphaISD::STT_: return "Alpha::STT_";
176 case AlphaISD::STS_: return "Alpha::STS_";
177 case AlphaISD::STL_: return "Alpha::STL_";
178 case AlphaISD::STW_: return "Alpha::STW_";
179 case AlphaISD::STB_: return "Alpha::STB_";
183 //http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PY8AC-TET1_html/callCH3.html#BLOCK21
185 //For now, just use variable size stack frame format
187 //In a standard call, the first six items are passed in registers $16
188 //- $21 and/or registers $f16 - $f21. (See Section 4.1.2 for details
189 //of argument-to-register correspondence.) The remaining items are
190 //collected in a memory argument list that is a naturally aligned
191 //array of quadwords. In a standard call, this list, if present, must
192 //be passed at 0(SP).
193 //7 ... n 0(SP) ... (n-7)*8(SP)
201 std::vector<SDOperand>
202 AlphaTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG)
204 MachineFunction &MF = DAG.getMachineFunction();
205 MachineFrameInfo *MFI = MF.getFrameInfo();
206 MachineBasicBlock& BB = MF.front();
207 std::vector<SDOperand> ArgValues;
209 unsigned args_int[] = {
210 Alpha::R16, Alpha::R17, Alpha::R18, Alpha::R19, Alpha::R20, Alpha::R21};
211 unsigned args_float[] = {
212 Alpha::F16, Alpha::F17, Alpha::F18, Alpha::F19, Alpha::F20, Alpha::F21};
216 GP = AddLiveIn(MF, Alpha::R29, getRegClassFor(MVT::i64));
217 RA = AddLiveIn(MF, Alpha::R26, getRegClassFor(MVT::i64));
219 for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; ++I)
224 MVT::ValueType VT = getValueType(I->getType());
227 std::cerr << "Unknown Type " << VT << "\n";
231 args_float[count] = AddLiveIn(MF, args_float[count], getRegClassFor(VT));
232 argt = DAG.getCopyFromReg(DAG.getRoot(), args_float[count], VT);
233 DAG.setRoot(argt.getValue(1));
240 args_int[count] = AddLiveIn(MF, args_int[count], getRegClassFor(MVT::i64));
241 argt = DAG.getCopyFromReg(DAG.getRoot(), args_int[count], MVT::i64);
242 DAG.setRoot(argt.getValue(1));
243 if (VT != MVT::i64) {
245 I->getType()->isSigned() ? ISD::AssertSext : ISD::AssertZext;
246 argt = DAG.getNode(AssertOp, MVT::i64, argt,
247 DAG.getValueType(VT));
248 argt = DAG.getNode(ISD::TRUNCATE, VT, argt);
253 // Create the frame index object for this incoming parameter...
254 int FI = MFI->CreateFixedObject(8, 8 * (count - 6));
256 // Create the SelectionDAG nodes corresponding to a load
257 //from this parameter
258 SDOperand FIN = DAG.getFrameIndex(FI, MVT::i64);
259 argt = DAG.getLoad(getValueType(I->getType()),
260 DAG.getEntryNode(), FIN, DAG.getSrcValue(NULL));
263 ArgValues.push_back(argt);
266 // If the functions takes variable number of arguments, copy all regs to stack
268 VarArgsOffset = count * 8;
269 std::vector<SDOperand> LS;
270 for (int i = 0; i < 6; ++i) {
271 if (MRegisterInfo::isPhysicalRegister(args_int[i]))
272 args_int[i] = AddLiveIn(MF, args_int[i], getRegClassFor(MVT::i64));
273 SDOperand argt = DAG.getCopyFromReg(DAG.getRoot(), args_int[i], MVT::i64);
274 int FI = MFI->CreateFixedObject(8, -8 * (6 - i));
275 if (i == 0) VarArgsBase = FI;
276 SDOperand SDFI = DAG.getFrameIndex(FI, MVT::i64);
277 LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getRoot(), argt,
278 SDFI, DAG.getSrcValue(NULL)));
280 if (MRegisterInfo::isPhysicalRegister(args_float[i]))
281 args_float[i] = AddLiveIn(MF, args_float[i], getRegClassFor(MVT::f64));
282 argt = DAG.getCopyFromReg(DAG.getRoot(), args_float[i], MVT::f64);
283 FI = MFI->CreateFixedObject(8, - 8 * (12 - i));
284 SDFI = DAG.getFrameIndex(FI, MVT::i64);
285 LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getRoot(), argt,
286 SDFI, DAG.getSrcValue(NULL)));
289 //Set up a token factor with all the stack traffic
290 DAG.setRoot(DAG.getNode(ISD::TokenFactor, MVT::Other, LS));
293 // Finally, inform the code generator which regs we return values in.
294 switch (getValueType(F.getReturnType())) {
295 default: assert(0 && "Unknown type!");
296 case MVT::isVoid: break;
302 MF.addLiveOut(Alpha::R0);
306 MF.addLiveOut(Alpha::F0);
310 //return the arguments
314 std::pair<SDOperand, SDOperand>
315 AlphaTargetLowering::LowerCallTo(SDOperand Chain,
316 const Type *RetTy, bool isVarArg,
317 unsigned CallingConv, bool isTailCall,
318 SDOperand Callee, ArgListTy &Args,
322 NumBytes = (Args.size() - 6) * 8;
324 Chain = DAG.getNode(ISD::CALLSEQ_START, MVT::Other, Chain,
325 DAG.getConstant(NumBytes, getPointerTy()));
326 std::vector<SDOperand> args_to_use;
327 for (unsigned i = 0, e = Args.size(); i != e; ++i)
329 switch (getValueType(Args[i].second)) {
330 default: assert(0 && "Unexpected ValueType for argument!");
335 // Promote the integer to 64 bits. If the input type is signed use a
336 // sign extend, otherwise use a zero extend.
337 if (Args[i].second->isSigned())
338 Args[i].first = DAG.getNode(ISD::SIGN_EXTEND, MVT::i64, Args[i].first);
340 Args[i].first = DAG.getNode(ISD::ZERO_EXTEND, MVT::i64, Args[i].first);
347 args_to_use.push_back(Args[i].first);
350 std::vector<MVT::ValueType> RetVals;
351 MVT::ValueType RetTyVT = getValueType(RetTy);
352 MVT::ValueType ActualRetTyVT = RetTyVT;
353 if (RetTyVT >= MVT::i1 && RetTyVT <= MVT::i32)
354 ActualRetTyVT = MVT::i64;
356 if (RetTyVT != MVT::isVoid)
357 RetVals.push_back(ActualRetTyVT);
358 RetVals.push_back(MVT::Other);
360 SDOperand TheCall = SDOperand(DAG.getCall(RetVals,
361 Chain, Callee, args_to_use), 0);
362 Chain = TheCall.getValue(RetTyVT != MVT::isVoid);
363 Chain = DAG.getNode(ISD::CALLSEQ_END, MVT::Other, Chain,
364 DAG.getConstant(NumBytes, getPointerTy()));
365 SDOperand RetVal = TheCall;
367 if (RetTyVT != ActualRetTyVT) {
368 RetVal = DAG.getNode(RetTy->isSigned() ? ISD::AssertSext : ISD::AssertZext,
369 MVT::i64, RetVal, DAG.getValueType(RetTyVT));
370 RetVal = DAG.getNode(ISD::TRUNCATE, RetTyVT, RetVal);
373 return std::make_pair(RetVal, Chain);
376 void AlphaTargetLowering::restoreGP(MachineBasicBlock* BB)
378 BuildMI(BB, Alpha::BIS, 2, Alpha::R29).addReg(GP).addReg(GP);
380 void AlphaTargetLowering::restoreRA(MachineBasicBlock* BB)
382 BuildMI(BB, Alpha::BIS, 2, Alpha::R26).addReg(RA).addReg(RA);
387 static void getValueInfo(const Value* v, int& type, int& fun, int& offset)
389 fun = type = offset = 0;
392 } else if (const GlobalValue* GV = dyn_cast<GlobalValue>(v)) {
394 const Module* M = GV->getParent();
395 for(Module::const_global_iterator ii = M->global_begin(); &*ii != GV; ++ii)
397 } else if (const Argument* Arg = dyn_cast<Argument>(v)) {
399 const Function* F = Arg->getParent();
400 const Module* M = F->getParent();
401 for(Module::const_iterator ii = M->begin(); &*ii != F; ++ii)
403 for(Function::const_arg_iterator ii = F->arg_begin(); &*ii != Arg; ++ii)
405 } else if (const Instruction* I = dyn_cast<Instruction>(v)) {
406 assert(dyn_cast<PointerType>(I->getType()));
408 const BasicBlock* bb = I->getParent();
409 const Function* F = bb->getParent();
410 const Module* M = F->getParent();
411 for(Module::const_iterator ii = M->begin(); &*ii != F; ++ii)
413 for(Function::const_iterator ii = F->begin(); &*ii != bb; ++ii)
414 offset += ii->size();
415 for(BasicBlock::const_iterator ii = bb->begin(); &*ii != I; ++ii)
417 } else if (const Constant* C = dyn_cast<Constant>(v)) {
418 //Don't know how to look these up yet
421 assert(0 && "Error in value marking");
423 //type = 4: register spilling
424 //type = 5: global address loading or constant loading
433 /// LowerOperation - Provide custom lowering hooks for some operations.
435 SDOperand AlphaTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
436 switch (Op.getOpcode()) {
437 default: assert(0 && "Wasn't expecting to be able to lower this!");
438 case ISD::SINT_TO_FP: {
439 assert(MVT::i64 == Op.getOperand(0).getValueType() &&
440 "Unhandled SINT_TO_FP type in custom expander!");
442 bool isDouble = MVT::f64 == Op.getValueType();
444 LD = DAG.getNode(AlphaISD::ITOFT_, MVT::f64, Op.getOperand(0));
447 DAG.getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
448 SDOperand FI = DAG.getFrameIndex(FrameIdx, MVT::i64);
449 SDOperand ST = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(),
450 Op.getOperand(0), FI, DAG.getSrcValue(0));
451 LD = DAG.getLoad(MVT::f64, ST, FI, DAG.getSrcValue(0));
453 SDOperand FP = DAG.getNode(isDouble?AlphaISD::CVTQT_:AlphaISD::CVTQS_,
454 isDouble?MVT::f64:MVT::f32, LD);
457 case ISD::FP_TO_SINT: {
458 bool isDouble = MVT::f64 == Op.getOperand(0).getValueType();
459 SDOperand src = Op.getOperand(0);
461 if (!isDouble) //Promote
462 src = DAG.getNode(ISD::FP_EXTEND, MVT::f64, src);
464 src = DAG.getNode(AlphaISD::CVTTQ_, MVT::f64, src);
467 return DAG.getNode(AlphaISD::FTOIT_, MVT::i64, src);
470 DAG.getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
471 SDOperand FI = DAG.getFrameIndex(FrameIdx, MVT::i64);
472 SDOperand ST = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(),
473 src, FI, DAG.getSrcValue(0));
474 return DAG.getLoad(MVT::i64, ST, FI, DAG.getSrcValue(0));
477 case ISD::ConstantPool: {
478 Constant *C = cast<ConstantPoolSDNode>(Op)->get();
479 SDOperand CPI = DAG.getTargetConstantPool(C, MVT::i64);
481 SDOperand Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, CPI,
482 DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
483 SDOperand Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, CPI, Hi);
486 case ISD::GlobalAddress: {
487 GlobalAddressSDNode *GSDN = cast<GlobalAddressSDNode>(Op);
488 GlobalValue *GV = GSDN->getGlobal();
489 SDOperand GA = DAG.getTargetGlobalAddress(GV, MVT::i64, GSDN->getOffset());
491 if (!GV->hasWeakLinkage() && !GV->isExternal()) {
492 SDOperand Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, GA,
493 DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
494 SDOperand Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, GA, Hi);
497 return DAG.getNode(AlphaISD::RelLit, MVT::i64, GA, DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
499 case ISD::ExternalSymbol: {
500 return DAG.getNode(AlphaISD::RelLit, MVT::i64,
501 DAG.getTargetExternalSymbol(cast<ExternalSymbolSDNode>(Op)->getSymbol(), MVT::i64),
502 DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
509 if (MVT::isInteger(Op.getValueType())) {
510 const char* opstr = 0;
511 switch(Op.getOpcode()) {
512 case ISD::UREM: opstr = "__remqu"; break;
513 case ISD::SREM: opstr = "__remq"; break;
514 case ISD::UDIV: opstr = "__divqu"; break;
515 case ISD::SDIV: opstr = "__divq"; break;
517 SDOperand Tmp1 = Op.getOperand(0),
518 Tmp2 = Op.getOperand(1),
519 Addr = DAG.getExternalSymbol(opstr, MVT::i64);
520 return DAG.getNode(AlphaISD::DivCall, MVT::i64, Addr, Tmp1, Tmp2);
529 SDOperand Chain = Op.getOperand(0);
530 SDOperand Address = Op.getOperand(1);
533 unsigned opcode = Op.getOpcode();
535 if (opcode == ISD::LOAD)
536 switch (Op.Val->getValueType(0)) {
537 default: Op.Val->dump(); assert(0 && "Bad load!");
538 case MVT::i64: Opc = AlphaISD::LDQ_; break;
539 case MVT::f64: Opc = AlphaISD::LDT_; break;
540 case MVT::f32: Opc = AlphaISD::LDS_; break;
543 switch (cast<VTSDNode>(Op.getOperand(3))->getVT()) {
544 default: Op.Val->dump(); assert(0 && "Bad sign extend!");
545 case MVT::i32: Opc = AlphaISD::LDL_;
546 assert(opcode != ISD::ZEXTLOAD && "Not sext"); break;
547 case MVT::i16: Opc = AlphaISD::LDWU_;
548 assert(opcode != ISD::SEXTLOAD && "Not zext"); break;
549 case MVT::i1: //FIXME: Treat i1 as i8 since there are problems otherwise
550 case MVT::i8: Opc = AlphaISD::LDBU_;
551 assert(opcode != ISD::SEXTLOAD && "Not zext"); break;
555 getValueInfo(dyn_cast<SrcValueSDNode>(Op.getOperand(2))->getValue(), i, j, k);
557 SDOperand Zero = DAG.getConstant(0, MVT::i64);
558 std::vector<MVT::ValueType> VTS;
559 VTS.push_back(Op.Val->getValueType(0));
560 VTS.push_back(MVT::Other);
561 std::vector<SDOperand> ARGS;
562 ARGS.push_back(Chain);
563 ARGS.push_back(Zero);
564 ARGS.push_back(Address);
565 ARGS.push_back(DAG.getConstant(i, MVT::i64));
566 ARGS.push_back(DAG.getConstant(j, MVT::i64));
567 ARGS.push_back(DAG.getConstant(k, MVT::i64));
568 ARGS.push_back(DAG.getConstant(getUID(), MVT::i64));
569 return DAG.getNode(Opc, VTS, ARGS);
572 case ISD::TRUNCSTORE:
575 SDOperand Chain = Op.getOperand(0);
576 SDOperand Value = Op.getOperand(1);
577 SDOperand Address = Op.getOperand(2);
580 unsigned opcode = Op.getOpcode();
582 if (opcode == ISD::STORE) {
583 switch(Value.getValueType()) {
584 default: assert(0 && "unknown Type in store");
585 case MVT::i64: Opc = AlphaISD::STQ_; break;
586 case MVT::f64: Opc = AlphaISD::STT_; break;
587 case MVT::f32: Opc = AlphaISD::STS_; break;
589 } else { //ISD::TRUNCSTORE
590 switch(cast<VTSDNode>(Op.getOperand(4))->getVT()) {
591 default: assert(0 && "unknown Type in store");
592 case MVT::i8: Opc = AlphaISD::STB_; break;
593 case MVT::i16: Opc = AlphaISD::STW_; break;
594 case MVT::i32: Opc = AlphaISD::STL_; break;
599 getValueInfo(cast<SrcValueSDNode>(Op.getOperand(3))->getValue(), i, j, k);
601 SDOperand Zero = DAG.getConstant(0, MVT::i64);
602 std::vector<MVT::ValueType> VTS;
603 VTS.push_back(MVT::Other);
604 std::vector<SDOperand> ARGS;
605 ARGS.push_back(Chain);
606 ARGS.push_back(Value);
607 ARGS.push_back(Zero);
608 ARGS.push_back(Address);
609 ARGS.push_back(DAG.getConstant(i, MVT::i64));
610 ARGS.push_back(DAG.getConstant(j, MVT::i64));
611 ARGS.push_back(DAG.getConstant(k, MVT::i64));
612 ARGS.push_back(DAG.getConstant(getUID(), MVT::i64));
613 return DAG.getNode(Opc, VTS, ARGS);
616 SDOperand Chain = Op.getOperand(0);
617 SDOperand VAListP = Op.getOperand(1);
618 SDOperand VAListS = Op.getOperand(2);
620 SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP, VAListS);
621 SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
622 DAG.getConstant(8, MVT::i64));
623 SDOperand Offset = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Base.getValue(1),
624 Tmp, DAG.getSrcValue(0), MVT::i32);
625 SDOperand DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset);
626 if (MVT::isFloatingPoint(Op.getValueType()))
628 //if fp && Offset < 6*8, then subtract 6*8 from DataPtr
629 SDOperand FPDataPtr = DAG.getNode(ISD::SUB, MVT::i64, DataPtr,
630 DAG.getConstant(8*6, MVT::i64));
631 SDOperand CC = DAG.getSetCC(MVT::i64, Offset,
632 DAG.getConstant(8*6, MVT::i64), ISD::SETLT);
633 DataPtr = DAG.getNode(ISD::SELECT, MVT::i64, CC, FPDataPtr, DataPtr);
636 SDOperand NewOffset = DAG.getNode(ISD::ADD, MVT::i64, Offset,
637 DAG.getConstant(8, MVT::i64));
638 SDOperand Update = DAG.getNode(ISD::TRUNCSTORE, MVT::Other,
639 Offset.getValue(1), NewOffset,
640 Tmp, DAG.getSrcValue(0),
641 DAG.getValueType(MVT::i32));
644 if (Op.getValueType() == MVT::i32)
645 Result = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Update, DataPtr,
646 DAG.getSrcValue(0), MVT::i32);
648 Result = DAG.getLoad(Op.getValueType(), Update, DataPtr,
653 SDOperand Chain = Op.getOperand(0);
654 SDOperand DestP = Op.getOperand(1);
655 SDOperand SrcP = Op.getOperand(2);
656 SDOperand DestS = Op.getOperand(3);
657 SDOperand SrcS = Op.getOperand(4);
659 SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP, SrcS);
660 SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Val.getValue(1), Val,
662 SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP,
663 DAG.getConstant(8, MVT::i64));
664 Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP,
665 DAG.getSrcValue(0), MVT::i32);
666 SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP,
667 DAG.getConstant(8, MVT::i64));
668 return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1),
669 Val, NPD, DAG.getSrcValue(0),DAG.getValueType(MVT::i32));
672 SDOperand Chain = Op.getOperand(0);
673 SDOperand VAListP = Op.getOperand(1);
674 SDOperand VAListS = Op.getOperand(2);
676 // vastart stores the address of the VarArgsBase and VarArgsOffset
677 SDOperand FR = DAG.getFrameIndex(VarArgsBase, MVT::i64);
678 SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, VAListP,
680 SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
681 DAG.getConstant(8, MVT::i64));
682 return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1,
683 DAG.getConstant(VarArgsOffset, MVT::i64), SA2,
684 DAG.getSrcValue(0), DAG.getValueType(MVT::i32));