#include "AlphaISelLowering.h"
#include "AlphaTargetMachine.h"
+#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Constants.h"
#include "llvm/Function.h"
#include "llvm/Module.h"
+#include "llvm/Intrinsics.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
+namespace {
+class TargetLoweringObjectFileAlpha : public TargetLoweringObjectFile {
+public:
+ void Initialize(MCContext &Ctx, const TargetMachine &TM) {
+ TargetLoweringObjectFile::Initialize(Ctx, TM);
+ TextSection = getOrCreateSection("_text", true,
+ SectionKind::get(SectionKind::Text));
+ DataSection = getOrCreateSection("_data", true,
+ SectionKind::get(SectionKind::DataRel));
+ }
+};
+}
+
+
+
/// AddLiveIn - This helper function adds the specified physical register to the
/// MachineFunction as a live in value. It also creates a corresponding virtual
/// register for it.
return VReg;
}
-AlphaTargetLowering::AlphaTargetLowering(TargetMachine &TM) : TargetLowering(TM) {
+AlphaTargetLowering::AlphaTargetLowering(TargetMachine &TM)
+ : TargetLowering(TM, new TargetLoweringObjectFileAlpha()) {
// Set up the TargetLowering object.
- //I am having problems with shr n ubyte 1
+ //I am having problems with shr n i8 1
setShiftAmountType(MVT::i64);
- setSetCCResultContents(ZeroOrOneSetCCResult);
+ setBooleanContents(ZeroOrOneBooleanContent);
setUsesGlobalOffsetTable(true);
addRegisterClass(MVT::i64, Alpha::GPRCRegisterClass);
addRegisterClass(MVT::f64, Alpha::F8RCRegisterClass);
addRegisterClass(MVT::f32, Alpha::F4RCRegisterClass);
+
+ // We want to custom lower some of our intrinsics.
+ setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom);
+
+ setLoadExtAction(ISD::EXTLOAD, MVT::i1, Promote);
+ setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
- setLoadXAction(ISD::EXTLOAD, MVT::i1, Promote);
- setLoadXAction(ISD::EXTLOAD, MVT::f32, Expand);
-
- setLoadXAction(ISD::ZEXTLOAD, MVT::i1, Promote);
- setLoadXAction(ISD::ZEXTLOAD, MVT::i32, Expand);
+ setLoadExtAction(ISD::ZEXTLOAD, MVT::i1, Promote);
+ setLoadExtAction(ISD::ZEXTLOAD, MVT::i32, Expand);
- setLoadXAction(ISD::SEXTLOAD, MVT::i1, Promote);
- setLoadXAction(ISD::SEXTLOAD, MVT::i8, Expand);
- setLoadXAction(ISD::SEXTLOAD, MVT::i16, Expand);
+ setLoadExtAction(ISD::SEXTLOAD, MVT::i1, Promote);
+ setLoadExtAction(ISD::SEXTLOAD, MVT::i8, Expand);
+ setLoadExtAction(ISD::SEXTLOAD, MVT::i16, Expand);
+
+ setTruncStoreAction(MVT::f64, MVT::f32, Expand);
// setOperationAction(ISD::BRIND, MVT::Other, Expand);
setOperationAction(ISD::BR_JT, MVT::Other, Expand);
setOperationAction(ISD::SDIV , MVT::i64, Custom);
setOperationAction(ISD::UDIV , MVT::i64, Custom);
+ setOperationAction(ISD::ADDC , MVT::i64, Expand);
+ setOperationAction(ISD::ADDE , MVT::i64, Expand);
+ setOperationAction(ISD::SUBC , MVT::i64, Expand);
+ setOperationAction(ISD::SUBE , MVT::i64, Expand);
+
+ setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
+ setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
+
+
// We don't support sin/cos/sqrt/pow
setOperationAction(ISD::FSIN , MVT::f64, Expand);
setOperationAction(ISD::FCOS , MVT::f64, Expand);
setOperationAction(ISD::FPOW , MVT::f32, Expand);
setOperationAction(ISD::FPOW , MVT::f64, Expand);
- setOperationAction(ISD::FLOG, MVT::f32, Expand);
- setOperationAction(ISD::FLOG, MVT::f64, Expand);
- setOperationAction(ISD::FLOG2, MVT::f32, Expand);
- setOperationAction(ISD::FLOG2, MVT::f64, Expand);
- setOperationAction(ISD::FLOG10, MVT::f32, Expand);
- setOperationAction(ISD::FLOG10, MVT::f64, Expand);
- setOperationAction(ISD::FEXP, MVT::f32, Expand);
- setOperationAction(ISD::FEXP, MVT::f64, Expand);
- setOperationAction(ISD::FEXP2, MVT::f32, Expand);
- setOperationAction(ISD::FEXP2, MVT::f64, Expand);
-
setOperationAction(ISD::SETCC, MVT::f32, Promote);
setOperationAction(ISD::BIT_CONVERT, MVT::f32, Promote);
computeRegisterProperties();
}
-MVT AlphaTargetLowering::getSetCCResultType(const SDValue &) const {
+MVT AlphaTargetLowering::getSetCCResultType(MVT VT) const {
return MVT::i64;
}
}
}
+/// getFunctionAlignment - Return the Log2 alignment of this function.
+unsigned AlphaTargetLowering::getFunctionAlignment(const Function *F) const {
+ return 4;
+}
+
static SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) {
MVT PtrVT = Op.getValueType();
JumpTableSDNode *JT = cast<JumpTableSDNode>(Op);
SDValue JTI = DAG.getTargetJumpTable(JT->getIndex(), PtrVT);
SDValue Zero = DAG.getConstant(0, PtrVT);
+ // FIXME there isn't really any debug info here
+ DebugLoc dl = Op.getDebugLoc();
- SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, JTI,
- DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
- SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, JTI, Hi);
+ SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, dl, MVT::i64, JTI,
+ DAG.getGLOBAL_OFFSET_TABLE(MVT::i64));
+ SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, dl, MVT::i64, JTI, Hi);
return Lo;
}
// //#define GP $29
// //#define SP $30
+#include "AlphaGenCallingConv.inc"
+
+SDValue AlphaTargetLowering::LowerCALL(SDValue Op, SelectionDAG &DAG) {
+ CallSDNode *TheCall = cast<CallSDNode>(Op.getNode());
+ SDValue Chain = TheCall->getChain();
+ SDValue Callee = TheCall->getCallee();
+ bool isVarArg = TheCall->isVarArg();
+ DebugLoc dl = Op.getDebugLoc();
+ MachineFunction &MF = DAG.getMachineFunction();
+ unsigned CC = MF.getFunction()->getCallingConv();
+
+ // Analyze operands of the call, assigning locations to each operand.
+ SmallVector<CCValAssign, 16> ArgLocs;
+ CCState CCInfo(CC, isVarArg, getTargetMachine(), ArgLocs, *DAG.getContext());
+
+ CCInfo.AnalyzeCallOperands(TheCall, CC_Alpha);
+
+ // Get a count of how many bytes are to be pushed on the stack.
+ unsigned NumBytes = CCInfo.getNextStackOffset();
+
+ Chain = DAG.getCALLSEQ_START(Chain, DAG.getConstant(NumBytes,
+ getPointerTy(), true));
+
+ SmallVector<std::pair<unsigned, SDValue>, 4> RegsToPass;
+ SmallVector<SDValue, 12> MemOpChains;
+ SDValue StackPtr;
+
+ // Walk the register/memloc assignments, inserting copies/loads.
+ for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) {
+ CCValAssign &VA = ArgLocs[i];
+
+ // Arguments start after the 5 first operands of ISD::CALL
+ SDValue Arg = TheCall->getArg(i);
+
+ // Promote the value if needed.
+ switch (VA.getLocInfo()) {
+ default: assert(0 && "Unknown loc info!");
+ case CCValAssign::Full: break;
+ case CCValAssign::SExt:
+ Arg = DAG.getNode(ISD::SIGN_EXTEND, dl, VA.getLocVT(), Arg);
+ break;
+ case CCValAssign::ZExt:
+ Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, VA.getLocVT(), Arg);
+ break;
+ case CCValAssign::AExt:
+ Arg = DAG.getNode(ISD::ANY_EXTEND, dl, VA.getLocVT(), Arg);
+ break;
+ }
+
+ // Arguments that can be passed on register must be kept at RegsToPass
+ // vector
+ if (VA.isRegLoc()) {
+ RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
+ } else {
+ assert(VA.isMemLoc());
+
+ if (StackPtr.getNode() == 0)
+ StackPtr = DAG.getCopyFromReg(Chain, dl, Alpha::R30, MVT::i64);
+
+ SDValue PtrOff = DAG.getNode(ISD::ADD, dl, getPointerTy(),
+ StackPtr,
+ DAG.getIntPtrConstant(VA.getLocMemOffset()));
+
+ MemOpChains.push_back(DAG.getStore(Chain, dl, Arg, PtrOff,
+ PseudoSourceValue::getStack(), 0));
+ }
+ }
+
+ // Transform all store nodes into one single node because all store nodes are
+ // independent of each other.
+ if (!MemOpChains.empty())
+ Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other,
+ &MemOpChains[0], MemOpChains.size());
+
+ // Build a sequence of copy-to-reg nodes chained together with token chain and
+ // flag operands which copy the outgoing args into registers. The InFlag in
+ // necessary since all emited instructions must be stuck together.
+ SDValue InFlag;
+ for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
+ Chain = DAG.getCopyToReg(Chain, dl, RegsToPass[i].first,
+ RegsToPass[i].second, InFlag);
+ InFlag = Chain.getValue(1);
+ }
+
+ // Returns a chain & a flag for retval copy to use.
+ SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Flag);
+ SmallVector<SDValue, 8> Ops;
+ Ops.push_back(Chain);
+ Ops.push_back(Callee);
+
+ // Add argument registers to the end of the list so that they are
+ // known live into the call.
+ for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i)
+ Ops.push_back(DAG.getRegister(RegsToPass[i].first,
+ RegsToPass[i].second.getValueType()));
+
+ if (InFlag.getNode())
+ Ops.push_back(InFlag);
+
+ Chain = DAG.getNode(AlphaISD::CALL, dl, NodeTys, &Ops[0], Ops.size());
+ InFlag = Chain.getValue(1);
+
+ // Create the CALLSEQ_END node.
+ Chain = DAG.getCALLSEQ_END(Chain,
+ DAG.getConstant(NumBytes, getPointerTy(), true),
+ DAG.getConstant(0, getPointerTy(), true),
+ InFlag);
+ InFlag = Chain.getValue(1);
+
+ // Handle result values, copying them out of physregs into vregs that we
+ // return.
+ return SDValue(LowerCallResult(Chain, InFlag, TheCall, CC, DAG),
+ Op.getResNo());
+}
+
+/// LowerCallResult - Lower the result values of an ISD::CALL into the
+/// appropriate copies out of appropriate physical registers. This assumes that
+/// Chain/InFlag are the input chain/flag to use, and that TheCall is the call
+/// being lowered. Returns a SDNode with the same number of values as the
+/// ISD::CALL.
+SDNode*
+AlphaTargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag,
+ CallSDNode *TheCall,
+ unsigned CallingConv,
+ SelectionDAG &DAG) {
+ bool isVarArg = TheCall->isVarArg();
+ DebugLoc dl = TheCall->getDebugLoc();
+
+ // Assign locations to each value returned by this call.
+ SmallVector<CCValAssign, 16> RVLocs;
+ CCState CCInfo(CallingConv, isVarArg, getTargetMachine(), RVLocs,
+ *DAG.getContext());
+
+ CCInfo.AnalyzeCallResult(TheCall, RetCC_Alpha);
+ SmallVector<SDValue, 8> ResultVals;
+
+ // Copy all of the result registers out of their specified physreg.
+ for (unsigned i = 0; i != RVLocs.size(); ++i) {
+ CCValAssign &VA = RVLocs[i];
+
+ Chain = DAG.getCopyFromReg(Chain, dl, VA.getLocReg(),
+ VA.getLocVT(), InFlag).getValue(1);
+ SDValue RetValue = Chain.getValue(0);
+ InFlag = Chain.getValue(2);
+
+ // If this is an 8/16/32-bit value, it is really passed promoted to 64
+ // bits. Insert an assert[sz]ext to capture this, then truncate to the
+ // right size.
+ if (VA.getLocInfo() == CCValAssign::SExt)
+ RetValue = DAG.getNode(ISD::AssertSext, dl, VA.getLocVT(), RetValue,
+ DAG.getValueType(VA.getValVT()));
+ else if (VA.getLocInfo() == CCValAssign::ZExt)
+ RetValue = DAG.getNode(ISD::AssertZext, dl, VA.getLocVT(), RetValue,
+ DAG.getValueType(VA.getValVT()));
+
+ if (VA.getLocInfo() != CCValAssign::Full)
+ RetValue = DAG.getNode(ISD::TRUNCATE, dl, VA.getValVT(), RetValue);
+
+ ResultVals.push_back(RetValue);
+ }
+
+ ResultVals.push_back(Chain);
+
+ // Merge everything together with a MERGE_VALUES node.
+ return DAG.getNode(ISD::MERGE_VALUES, dl, TheCall->getVTList(),
+ &ResultVals[0], ResultVals.size()).getNode();
+}
+
static SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG,
int &VarArgsBase,
int &VarArgsOffset) {
MachineFrameInfo *MFI = MF.getFrameInfo();
std::vector<SDValue> ArgValues;
SDValue Root = Op.getOperand(0);
-
- AddLiveIn(MF, Alpha::R29, &Alpha::GPRCRegClass); //GP
- AddLiveIn(MF, Alpha::R26, &Alpha::GPRCRegClass); //RA
+ DebugLoc dl = Op.getDebugLoc();
unsigned args_int[] = {
Alpha::R16, Alpha::R17, Alpha::R18, Alpha::R19, Alpha::R20, Alpha::R21};
case MVT::f64:
args_float[ArgNo] = AddLiveIn(MF, args_float[ArgNo],
&Alpha::F8RCRegClass);
- ArgVal = DAG.getCopyFromReg(Root, args_float[ArgNo], ObjectVT);
+ ArgVal = DAG.getCopyFromReg(Root, dl, args_float[ArgNo], ObjectVT);
break;
case MVT::f32:
args_float[ArgNo] = AddLiveIn(MF, args_float[ArgNo],
&Alpha::F4RCRegClass);
- ArgVal = DAG.getCopyFromReg(Root, args_float[ArgNo], ObjectVT);
+ ArgVal = DAG.getCopyFromReg(Root, dl, args_float[ArgNo], ObjectVT);
break;
case MVT::i64:
args_int[ArgNo] = AddLiveIn(MF, args_int[ArgNo],
&Alpha::GPRCRegClass);
- ArgVal = DAG.getCopyFromReg(Root, args_int[ArgNo], MVT::i64);
+ ArgVal = DAG.getCopyFromReg(Root, dl, args_int[ArgNo], MVT::i64);
break;
}
} else { //more args
// Create the SelectionDAG nodes corresponding to a load
//from this parameter
SDValue FIN = DAG.getFrameIndex(FI, MVT::i64);
- ArgVal = DAG.getLoad(ObjectVT, Root, FIN, NULL, 0);
+ ArgVal = DAG.getLoad(ObjectVT, dl, Root, FIN, NULL, 0);
}
ArgValues.push_back(ArgVal);
}
for (int i = 0; i < 6; ++i) {
if (TargetRegisterInfo::isPhysicalRegister(args_int[i]))
args_int[i] = AddLiveIn(MF, args_int[i], &Alpha::GPRCRegClass);
- SDValue argt = DAG.getCopyFromReg(Root, args_int[i], MVT::i64);
+ SDValue argt = DAG.getCopyFromReg(Root, dl, args_int[i], MVT::i64);
int FI = MFI->CreateFixedObject(8, -8 * (6 - i));
if (i == 0) VarArgsBase = FI;
SDValue SDFI = DAG.getFrameIndex(FI, MVT::i64);
- LS.push_back(DAG.getStore(Root, argt, SDFI, NULL, 0));
+ LS.push_back(DAG.getStore(Root, dl, argt, SDFI, NULL, 0));
if (TargetRegisterInfo::isPhysicalRegister(args_float[i]))
args_float[i] = AddLiveIn(MF, args_float[i], &Alpha::F8RCRegClass);
- argt = DAG.getCopyFromReg(Root, args_float[i], MVT::f64);
+ argt = DAG.getCopyFromReg(Root, dl, args_float[i], MVT::f64);
FI = MFI->CreateFixedObject(8, - 8 * (12 - i));
SDFI = DAG.getFrameIndex(FI, MVT::i64);
- LS.push_back(DAG.getStore(Root, argt, SDFI, NULL, 0));
+ LS.push_back(DAG.getStore(Root, dl, argt, SDFI, NULL, 0));
}
//Set up a token factor with all the stack traffic
- Root = DAG.getNode(ISD::TokenFactor, MVT::Other, &LS[0], LS.size());
+ Root = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &LS[0], LS.size());
}
ArgValues.push_back(Root);
// Return the new list of results.
- return DAG.getMergeValues(Op.getNode()->getVTList(), &ArgValues[0],
- ArgValues.size());
+ return DAG.getNode(ISD::MERGE_VALUES, dl, Op.getNode()->getVTList(),
+ &ArgValues[0], ArgValues.size());
}
static SDValue LowerRET(SDValue Op, SelectionDAG &DAG) {
- SDValue Copy = DAG.getCopyToReg(Op.getOperand(0), Alpha::R26,
+ DebugLoc dl = Op.getDebugLoc();
+ SDValue Copy = DAG.getCopyToReg(Op.getOperand(0), dl, Alpha::R26,
DAG.getNode(AlphaISD::GlobalRetAddr,
+ DebugLoc::getUnknownLoc(),
MVT::i64),
SDValue());
switch (Op.getNumOperands()) {
default:
- assert(0 && "Do not know how to return this many arguments!");
- abort();
+ llvm_unreachable("Do not know how to return this many arguments!");
case 1:
break;
//return SDValue(); // ret void is legal
assert(ArgVT.isFloatingPoint());
ArgReg = Alpha::F0;
}
- Copy = DAG.getCopyToReg(Copy, ArgReg, Op.getOperand(1), Copy.getValue(1));
+ Copy = DAG.getCopyToReg(Copy, dl, ArgReg,
+ Op.getOperand(1), Copy.getValue(1));
if (DAG.getMachineFunction().getRegInfo().liveout_empty())
DAG.getMachineFunction().getRegInfo().addLiveOut(ArgReg);
break;
}
- }
- return DAG.getNode(AlphaISD::RET_FLAG, MVT::Other, Copy, Copy.getValue(1));
-}
-
-std::pair<SDValue, SDValue>
-AlphaTargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
- bool RetSExt, bool RetZExt, bool isVarArg,
- unsigned CallingConv, bool isTailCall,
- SDValue Callee, ArgListTy &Args,
- SelectionDAG &DAG) {
- int NumBytes = 0;
- if (Args.size() > 6)
- NumBytes = (Args.size() - 6) * 8;
-
- Chain = DAG.getCALLSEQ_START(Chain,
- DAG.getConstant(NumBytes, getPointerTy()));
- std::vector<SDValue> args_to_use;
- for (unsigned i = 0, e = Args.size(); i != e; ++i)
- {
- switch (getValueType(Args[i].Ty).getSimpleVT()) {
- default: assert(0 && "Unexpected ValueType for argument!");
- case MVT::i1:
- case MVT::i8:
- case MVT::i16:
- case MVT::i32:
- // Promote the integer to 64 bits. If the input type is signed use a
- // sign extend, otherwise use a zero extend.
- if (Args[i].isSExt)
- Args[i].Node = DAG.getNode(ISD::SIGN_EXTEND, MVT::i64, Args[i].Node);
- else if (Args[i].isZExt)
- Args[i].Node = DAG.getNode(ISD::ZERO_EXTEND, MVT::i64, Args[i].Node);
- else
- Args[i].Node = DAG.getNode(ISD::ANY_EXTEND, MVT::i64, Args[i].Node);
- break;
- case MVT::i64:
- case MVT::f64:
- case MVT::f32:
- break;
+ case 5: {
+ MVT ArgVT = Op.getOperand(1).getValueType();
+ unsigned ArgReg1, ArgReg2;
+ if (ArgVT.isInteger()) {
+ ArgReg1 = Alpha::R0;
+ ArgReg2 = Alpha::R1;
+ } else {
+ assert(ArgVT.isFloatingPoint());
+ ArgReg1 = Alpha::F0;
+ ArgReg2 = Alpha::F1;
}
- args_to_use.push_back(Args[i].Node);
+ Copy = DAG.getCopyToReg(Copy, dl, ArgReg1,
+ Op.getOperand(1), Copy.getValue(1));
+ if (std::find(DAG.getMachineFunction().getRegInfo().liveout_begin(),
+ DAG.getMachineFunction().getRegInfo().liveout_end(), ArgReg1)
+ == DAG.getMachineFunction().getRegInfo().liveout_end())
+ DAG.getMachineFunction().getRegInfo().addLiveOut(ArgReg1);
+ Copy = DAG.getCopyToReg(Copy, dl, ArgReg2,
+ Op.getOperand(3), Copy.getValue(1));
+ if (std::find(DAG.getMachineFunction().getRegInfo().liveout_begin(),
+ DAG.getMachineFunction().getRegInfo().liveout_end(), ArgReg2)
+ == DAG.getMachineFunction().getRegInfo().liveout_end())
+ DAG.getMachineFunction().getRegInfo().addLiveOut(ArgReg2);
+ break;
}
-
- std::vector<MVT> RetVals;
- MVT RetTyVT = getValueType(RetTy);
- MVT ActualRetTyVT = RetTyVT;
- if (RetTyVT.getSimpleVT() >= MVT::i1 && RetTyVT.getSimpleVT() <= MVT::i32)
- ActualRetTyVT = MVT::i64;
-
- if (RetTyVT != MVT::isVoid)
- RetVals.push_back(ActualRetTyVT);
- RetVals.push_back(MVT::Other);
-
- std::vector<SDValue> Ops;
- Ops.push_back(Chain);
- Ops.push_back(Callee);
- Ops.insert(Ops.end(), args_to_use.begin(), args_to_use.end());
- SDValue TheCall = DAG.getNode(AlphaISD::CALL, RetVals, &Ops[0], Ops.size());
- Chain = TheCall.getValue(RetTyVT != MVT::isVoid);
- Chain = DAG.getCALLSEQ_END(Chain,
- DAG.getConstant(NumBytes, getPointerTy()),
- DAG.getConstant(0, getPointerTy()),
- SDValue());
- SDValue RetVal = TheCall;
-
- if (RetTyVT != ActualRetTyVT) {
- ISD::NodeType AssertKind = ISD::DELETED_NODE;
- if (RetSExt)
- AssertKind = ISD::AssertSext;
- else if (RetZExt)
- AssertKind = ISD::AssertZext;
-
- if (AssertKind != ISD::DELETED_NODE)
- RetVal = DAG.getNode(AssertKind, MVT::i64, RetVal,
- DAG.getValueType(RetTyVT));
-
- RetVal = DAG.getNode(ISD::TRUNCATE, RetTyVT, RetVal);
}
-
- return std::make_pair(RetVal, Chain);
+ return DAG.getNode(AlphaISD::RET_FLAG, dl,
+ MVT::Other, Copy, Copy.getValue(1));
}
void AlphaTargetLowering::LowerVAARG(SDNode *N, SDValue &Chain,
Chain = N->getOperand(0);
SDValue VAListP = N->getOperand(1);
const Value *VAListS = cast<SrcValueSDNode>(N->getOperand(2))->getValue();
+ DebugLoc dl = N->getDebugLoc();
- SDValue Base = DAG.getLoad(MVT::i64, Chain, VAListP, VAListS, 0);
- SDValue Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
+ SDValue Base = DAG.getLoad(MVT::i64, dl, Chain, VAListP, VAListS, 0);
+ SDValue Tmp = DAG.getNode(ISD::ADD, dl, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
- SDValue Offset = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Base.getValue(1),
+ SDValue Offset = DAG.getExtLoad(ISD::SEXTLOAD, dl, MVT::i64, Base.getValue(1),
Tmp, NULL, 0, MVT::i32);
- DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset);
+ DataPtr = DAG.getNode(ISD::ADD, dl, MVT::i64, Base, Offset);
if (N->getValueType(0).isFloatingPoint())
{
//if fp && Offset < 6*8, then subtract 6*8 from DataPtr
- SDValue FPDataPtr = DAG.getNode(ISD::SUB, MVT::i64, DataPtr,
+ SDValue FPDataPtr = DAG.getNode(ISD::SUB, dl, MVT::i64, DataPtr,
DAG.getConstant(8*6, MVT::i64));
- SDValue CC = DAG.getSetCC(MVT::i64, Offset,
+ SDValue CC = DAG.getSetCC(dl, MVT::i64, Offset,
DAG.getConstant(8*6, MVT::i64), ISD::SETLT);
- DataPtr = DAG.getNode(ISD::SELECT, MVT::i64, CC, FPDataPtr, DataPtr);
+ DataPtr = DAG.getNode(ISD::SELECT, dl, MVT::i64, CC, FPDataPtr, DataPtr);
}
- SDValue NewOffset = DAG.getNode(ISD::ADD, MVT::i64, Offset,
+ SDValue NewOffset = DAG.getNode(ISD::ADD, dl, MVT::i64, Offset,
DAG.getConstant(8, MVT::i64));
- Chain = DAG.getTruncStore(Offset.getValue(1), NewOffset, Tmp, NULL, 0,
+ Chain = DAG.getTruncStore(Offset.getValue(1), dl, NewOffset, Tmp, NULL, 0,
MVT::i32);
}
/// LowerOperation - Provide custom lowering hooks for some operations.
///
SDValue AlphaTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
+ DebugLoc dl = Op.getDebugLoc();
switch (Op.getOpcode()) {
- default: assert(0 && "Wasn't expecting to be able to lower this!");
+ default: llvm_unreachable("Wasn't expecting to be able to lower this!");
case ISD::FORMAL_ARGUMENTS: return LowerFORMAL_ARGUMENTS(Op, DAG,
VarArgsBase,
VarArgsOffset);
-
+ case ISD::CALL: return LowerCALL(Op, DAG);
case ISD::RET: return LowerRET(Op,DAG);
case ISD::JumpTable: return LowerJumpTable(Op, DAG);
+ case ISD::INTRINSIC_WO_CHAIN: {
+ unsigned IntNo = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
+ switch (IntNo) {
+ default: break; // Don't custom lower most intrinsics.
+ case Intrinsic::alpha_umulh:
+ return DAG.getNode(ISD::MULHU, dl, MVT::i64,
+ Op.getOperand(1), Op.getOperand(2));
+ }
+ }
+
case ISD::SINT_TO_FP: {
assert(Op.getOperand(0).getValueType() == MVT::i64 &&
"Unhandled SINT_TO_FP type in custom expander!");
SDValue LD;
bool isDouble = Op.getValueType() == MVT::f64;
- LD = DAG.getNode(ISD::BIT_CONVERT, MVT::f64, Op.getOperand(0));
- SDValue FP = DAG.getNode(isDouble?AlphaISD::CVTQT_:AlphaISD::CVTQS_,
+ LD = DAG.getNode(ISD::BIT_CONVERT, dl, MVT::f64, Op.getOperand(0));
+ SDValue FP = DAG.getNode(isDouble?AlphaISD::CVTQT_:AlphaISD::CVTQS_, dl,
isDouble?MVT::f64:MVT::f32, LD);
return FP;
}
SDValue src = Op.getOperand(0);
if (!isDouble) //Promote
- src = DAG.getNode(ISD::FP_EXTEND, MVT::f64, src);
+ src = DAG.getNode(ISD::FP_EXTEND, dl, MVT::f64, src);
- src = DAG.getNode(AlphaISD::CVTTQ_, MVT::f64, src);
+ src = DAG.getNode(AlphaISD::CVTTQ_, dl, MVT::f64, src);
- return DAG.getNode(ISD::BIT_CONVERT, MVT::i64, src);
+ return DAG.getNode(ISD::BIT_CONVERT, dl, MVT::i64, src);
}
case ISD::ConstantPool: {
ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op);
Constant *C = CP->getConstVal();
SDValue CPI = DAG.getTargetConstantPool(C, MVT::i64, CP->getAlignment());
+ // FIXME there isn't really any debug info here
- SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, CPI,
- DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
- SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, CPI, Hi);
+ SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, dl, MVT::i64, CPI,
+ DAG.getGLOBAL_OFFSET_TABLE(MVT::i64));
+ SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, dl, MVT::i64, CPI, Hi);
return Lo;
}
case ISD::GlobalTLSAddress:
- assert(0 && "TLS not implemented for Alpha.");
+ llvm_unreachable("TLS not implemented for Alpha.");
case ISD::GlobalAddress: {
GlobalAddressSDNode *GSDN = cast<GlobalAddressSDNode>(Op);
GlobalValue *GV = GSDN->getGlobal();
SDValue GA = DAG.getTargetGlobalAddress(GV, MVT::i64, GSDN->getOffset());
+ // FIXME there isn't really any debug info here
// if (!GV->hasWeakLinkage() && !GV->isDeclaration() && !GV->hasLinkOnceLinkage()) {
- if (GV->hasInternalLinkage()) {
- SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, GA,
- DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
- SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, GA, Hi);
+ if (GV->hasLocalLinkage()) {
+ SDValue Hi = DAG.getNode(AlphaISD::GPRelHi, dl, MVT::i64, GA,
+ DAG.getGLOBAL_OFFSET_TABLE(MVT::i64));
+ SDValue Lo = DAG.getNode(AlphaISD::GPRelLo, dl, MVT::i64, GA, Hi);
return Lo;
} else
- return DAG.getNode(AlphaISD::RelLit, MVT::i64, GA,
- DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
+ return DAG.getNode(AlphaISD::RelLit, dl, MVT::i64, GA,
+ DAG.getGLOBAL_OFFSET_TABLE(MVT::i64));
}
case ISD::ExternalSymbol: {
- return DAG.getNode(AlphaISD::RelLit, MVT::i64,
+ return DAG.getNode(AlphaISD::RelLit, dl, MVT::i64,
DAG.getTargetExternalSymbol(cast<ExternalSymbolSDNode>(Op)
->getSymbol(), MVT::i64),
- DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
+ DAG.getGLOBAL_OFFSET_TABLE(MVT::i64));
}
case ISD::UREM:
SDValue Tmp1 = Op.getNode()->getOpcode() == ISD::UREM ?
BuildUDIV(Op.getNode(), DAG, NULL) :
BuildSDIV(Op.getNode(), DAG, NULL);
- Tmp1 = DAG.getNode(ISD::MUL, VT, Tmp1, Op.getOperand(1));
- Tmp1 = DAG.getNode(ISD::SUB, VT, Op.getOperand(0), Tmp1);
+ Tmp1 = DAG.getNode(ISD::MUL, dl, VT, Tmp1, Op.getOperand(1));
+ Tmp1 = DAG.getNode(ISD::SUB, dl, VT, Op.getOperand(0), Tmp1);
return Tmp1;
}
//fall through
SDValue Tmp1 = Op.getOperand(0),
Tmp2 = Op.getOperand(1),
Addr = DAG.getExternalSymbol(opstr, MVT::i64);
- return DAG.getNode(AlphaISD::DivCall, MVT::i64, Addr, Tmp1, Tmp2);
+ return DAG.getNode(AlphaISD::DivCall, dl, MVT::i64, Addr, Tmp1, Tmp2);
}
break;
SDValue Result;
if (Op.getValueType() == MVT::i32)
- Result = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Chain, DataPtr,
+ Result = DAG.getExtLoad(ISD::SEXTLOAD, dl, MVT::i64, Chain, DataPtr,
NULL, 0, MVT::i32);
else
- Result = DAG.getLoad(Op.getValueType(), Chain, DataPtr, NULL, 0);
+ Result = DAG.getLoad(Op.getValueType(), dl, Chain, DataPtr, NULL, 0);
return Result;
}
case ISD::VACOPY: {
const Value *DestS = cast<SrcValueSDNode>(Op.getOperand(3))->getValue();
const Value *SrcS = cast<SrcValueSDNode>(Op.getOperand(4))->getValue();
- SDValue Val = DAG.getLoad(getPointerTy(), Chain, SrcP, SrcS, 0);
- SDValue Result = DAG.getStore(Val.getValue(1), Val, DestP, DestS, 0);
- SDValue NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP,
+ SDValue Val = DAG.getLoad(getPointerTy(), dl, Chain, SrcP, SrcS, 0);
+ SDValue Result = DAG.getStore(Val.getValue(1), dl, Val, DestP, DestS, 0);
+ SDValue NP = DAG.getNode(ISD::ADD, dl, MVT::i64, SrcP,
DAG.getConstant(8, MVT::i64));
- Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP, NULL,0, MVT::i32);
- SDValue NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP,
+ Val = DAG.getExtLoad(ISD::SEXTLOAD, dl, MVT::i64, Result,
+ NP, NULL,0, MVT::i32);
+ SDValue NPD = DAG.getNode(ISD::ADD, dl, MVT::i64, DestP,
DAG.getConstant(8, MVT::i64));
- return DAG.getTruncStore(Val.getValue(1), Val, NPD, NULL, 0, MVT::i32);
+ return DAG.getTruncStore(Val.getValue(1), dl, Val, NPD, NULL, 0, MVT::i32);
}
case ISD::VASTART: {
SDValue Chain = Op.getOperand(0);
// vastart stores the address of the VarArgsBase and VarArgsOffset
SDValue FR = DAG.getFrameIndex(VarArgsBase, MVT::i64);
- SDValue S1 = DAG.getStore(Chain, FR, VAListP, VAListS, 0);
- SDValue SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
+ SDValue S1 = DAG.getStore(Chain, dl, FR, VAListP, VAListS, 0);
+ SDValue SA2 = DAG.getNode(ISD::ADD, dl, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
- return DAG.getTruncStore(S1, DAG.getConstant(VarArgsOffset, MVT::i64),
+ return DAG.getTruncStore(S1, dl, DAG.getConstant(VarArgsOffset, MVT::i64),
SA2, NULL, 0, MVT::i32);
}
case ISD::RETURNADDR:
- return DAG.getNode(AlphaISD::GlobalRetAddr, MVT::i64);
+ return DAG.getNode(AlphaISD::GlobalRetAddr, DebugLoc::getUnknownLoc(),
+ MVT::i64);
//FIXME: implement
case ISD::FRAMEADDR: break;
}
return SDValue();
}
-SDNode *AlphaTargetLowering::ReplaceNodeResults(SDNode *N,
- SelectionDAG &DAG) {
+void AlphaTargetLowering::ReplaceNodeResults(SDNode *N,
+ SmallVectorImpl<SDValue>&Results,
+ SelectionDAG &DAG) {
+ DebugLoc dl = N->getDebugLoc();
assert(N->getValueType(0) == MVT::i32 &&
N->getOpcode() == ISD::VAARG &&
"Unknown node to custom promote!");
SDValue Chain, DataPtr;
LowerVAARG(N, Chain, DataPtr, DAG);
- return DAG.getLoad(N->getValueType(0), Chain, DataPtr, NULL, 0).getNode();
+ SDValue Res = DAG.getLoad(N->getValueType(0), dl, Chain, DataPtr, NULL, 0);
+ Results.push_back(Res);
+ Results.push_back(SDValue(Res.getNode(), 1));
}
MachineBasicBlock *
AlphaTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *BB) {
+ MachineBasicBlock *BB) const {
const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
assert((MI->getOpcode() == Alpha::CAS32 ||
MI->getOpcode() == Alpha::CAS64 ||
//test sc and maybe branck to start
//exit:
const BasicBlock *LLVM_BB = BB->getBasicBlock();
+ DebugLoc dl = MI->getDebugLoc();
MachineFunction::iterator It = BB;
++It;
F->insert(It, llscMBB);
F->insert(It, sinkMBB);
- BuildMI(thisMBB, TII->get(Alpha::BR)).addMBB(llscMBB);
+ BuildMI(thisMBB, dl, TII->get(Alpha::BR)).addMBB(llscMBB);
unsigned reg_res = MI->getOperand(0).getReg(),
reg_ptr = MI->getOperand(1).getReg(),
reg_v2 = MI->getOperand(2).getReg(),
reg_store = F->getRegInfo().createVirtualRegister(&Alpha::GPRCRegClass);
- BuildMI(llscMBB, TII->get(is32 ? Alpha::LDL_L : Alpha::LDQ_L),
+ BuildMI(llscMBB, dl, TII->get(is32 ? Alpha::LDL_L : Alpha::LDQ_L),
reg_res).addImm(0).addReg(reg_ptr);
switch (MI->getOpcode()) {
case Alpha::CAS32:
case Alpha::CAS64: {
unsigned reg_cmp
= F->getRegInfo().createVirtualRegister(&Alpha::GPRCRegClass);
- BuildMI(llscMBB, TII->get(Alpha::CMPEQ), reg_cmp)
+ BuildMI(llscMBB, dl, TII->get(Alpha::CMPEQ), reg_cmp)
.addReg(reg_v2).addReg(reg_res);
- BuildMI(llscMBB, TII->get(Alpha::BEQ))
+ BuildMI(llscMBB, dl, TII->get(Alpha::BEQ))
.addImm(0).addReg(reg_cmp).addMBB(sinkMBB);
- BuildMI(llscMBB, TII->get(Alpha::BISr), reg_store)
+ BuildMI(llscMBB, dl, TII->get(Alpha::BISr), reg_store)
.addReg(Alpha::R31).addReg(MI->getOperand(3).getReg());
break;
}
case Alpha::LAS32:
case Alpha::LAS64: {
- BuildMI(llscMBB, TII->get(is32 ? Alpha::ADDLr : Alpha::ADDQr), reg_store)
+ BuildMI(llscMBB, dl,TII->get(is32 ? Alpha::ADDLr : Alpha::ADDQr), reg_store)
.addReg(reg_res).addReg(reg_v2);
break;
}
case Alpha::SWAP32:
case Alpha::SWAP64: {
- BuildMI(llscMBB, TII->get(Alpha::BISr), reg_store)
+ BuildMI(llscMBB, dl, TII->get(Alpha::BISr), reg_store)
.addReg(reg_v2).addReg(reg_v2);
break;
}
}
- BuildMI(llscMBB, TII->get(is32 ? Alpha::STL_C : Alpha::STQ_C), reg_store)
+ BuildMI(llscMBB, dl, TII->get(is32 ? Alpha::STL_C : Alpha::STQ_C), reg_store)
.addReg(reg_store).addImm(0).addReg(reg_ptr);
- BuildMI(llscMBB, TII->get(Alpha::BEQ))
+ BuildMI(llscMBB, dl, TII->get(Alpha::BEQ))
.addImm(0).addReg(reg_store).addMBB(llscMBB);
- BuildMI(llscMBB, TII->get(Alpha::BR)).addMBB(sinkMBB);
+ BuildMI(llscMBB, dl, TII->get(Alpha::BR)).addMBB(sinkMBB);
thisMBB->addSuccessor(llscMBB);
llscMBB->addSuccessor(llscMBB);
return sinkMBB;
}
+
+bool
+AlphaTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
+ // The Alpha target isn't yet aware of offsets.
+ return false;
+}