#include "llvm/Function.h"
#include "llvm/Module.h"
#include "llvm/Support/CommandLine.h"
-#include <iostream>
-
using namespace llvm;
-//Shamelessly adapted from PPC32
-// Structure used to return the necessary information to codegen an SDIV as
-// a multiply.
-struct ms {
- int64_t m; // magic number
- int64_t s; // shift amount
-};
-
-struct mu {
- uint64_t m; // magic number
- int64_t a; // add indicator
- int64_t s; // shift amount
-};
-
-/// magic - calculate the magic numbers required to codegen an integer sdiv as
-/// a sequence of multiply and shifts. Requires that the divisor not be 0, 1,
-/// or -1.
-static struct ms magic(int64_t d) {
- int64_t p;
- uint64_t ad, anc, delta, q1, r1, q2, r2, t;
- const uint64_t two63 = 9223372036854775808ULL; // 2^63
- struct ms mag;
-
- ad = llabs(d);
- t = two63 + ((uint64_t)d >> 63);
- anc = t - 1 - t%ad; // absolute value of nc
- p = 63; // initialize p
- q1 = two63/anc; // initialize q1 = 2p/abs(nc)
- r1 = two63 - q1*anc; // initialize r1 = rem(2p,abs(nc))
- q2 = two63/ad; // initialize q2 = 2p/abs(d)
- r2 = two63 - q2*ad; // initialize r2 = rem(2p,abs(d))
- do {
- p = p + 1;
- q1 = 2*q1; // update q1 = 2p/abs(nc)
- r1 = 2*r1; // update r1 = rem(2p/abs(nc))
- if (r1 >= anc) { // must be unsigned comparison
- q1 = q1 + 1;
- r1 = r1 - anc;
- }
- q2 = 2*q2; // update q2 = 2p/abs(d)
- r2 = 2*r2; // update r2 = rem(2p/abs(d))
- if (r2 >= ad) { // must be unsigned comparison
- q2 = q2 + 1;
- r2 = r2 - ad;
- }
- delta = ad - r2;
- } while (q1 < delta || (q1 == delta && r1 == 0));
-
- mag.m = q2 + 1;
- if (d < 0) mag.m = -mag.m; // resulting magic number
- mag.s = p - 64; // resulting shift
- return mag;
-}
-
-/// magicu - calculate the magic numbers required to codegen an integer udiv as
-/// a sequence of multiply, add and shifts. Requires that the divisor not be 0.
-static struct mu magicu(uint64_t d)
-{
- int64_t p;
- uint64_t nc, delta, q1, r1, q2, r2;
- struct mu magu;
- magu.a = 0; // initialize "add" indicator
- nc = - 1 - (-d)%d;
- p = 63; // initialize p
- q1 = 0x8000000000000000ull/nc; // initialize q1 = 2p/nc
- r1 = 0x8000000000000000ull - q1*nc; // initialize r1 = rem(2p,nc)
- q2 = 0x7FFFFFFFFFFFFFFFull/d; // initialize q2 = (2p-1)/d
- r2 = 0x7FFFFFFFFFFFFFFFull - q2*d; // initialize r2 = rem((2p-1),d)
- do {
- p = p + 1;
- if (r1 >= nc - r1 ) {
- q1 = 2*q1 + 1; // update q1
- r1 = 2*r1 - nc; // update r1
- }
- else {
- q1 = 2*q1; // update q1
- r1 = 2*r1; // update r1
- }
- if (r2 + 1 >= d - r2) {
- if (q2 >= 0x7FFFFFFFFFFFFFFFull) magu.a = 1;
- q2 = 2*q2 + 1; // update q2
- r2 = 2*r2 + 1 - d; // update r2
- }
- else {
- if (q2 >= 0x8000000000000000ull) magu.a = 1;
- q2 = 2*q2; // update q2
- r2 = 2*r2 + 1; // update r2
- }
- delta = d - 1 - r2;
- } while (p < 64 && (q1 < delta || (q1 == delta && r1 == 0)));
- magu.m = q2 + 1; // resulting magic number
- magu.s = p - 64; // resulting shift
- return magu;
-}
-
-/// BuildSDIVSequence - Given an ISD::SDIV node expressing a divide by constant,
-/// return a DAG expression to select that will generate the same value by
-/// multiplying by a magic number. See:
-/// <http://the.wall.riscom.net/books/proc/ppc/cwg/code2.html>
-static SDOperand BuildSDIVSequence(SDOperand N, SelectionDAG* ISelDAG) {
- int64_t d = (int64_t)cast<ConstantSDNode>(N.getOperand(1))->getSignExtended();
- ms magics = magic(d);
- // Multiply the numerator (operand 0) by the magic value
- SDOperand Q = ISelDAG->getNode(ISD::MULHS, MVT::i64, N.getOperand(0),
- ISelDAG->getConstant(magics.m, MVT::i64));
- // If d > 0 and m < 0, add the numerator
- if (d > 0 && magics.m < 0)
- Q = ISelDAG->getNode(ISD::ADD, MVT::i64, Q, N.getOperand(0));
- // If d < 0 and m > 0, subtract the numerator.
- if (d < 0 && magics.m > 0)
- Q = ISelDAG->getNode(ISD::SUB, MVT::i64, Q, N.getOperand(0));
- // Shift right algebraic if shift value is nonzero
- if (magics.s > 0)
- Q = ISelDAG->getNode(ISD::SRA, MVT::i64, Q,
- ISelDAG->getConstant(magics.s, MVT::i64));
- // Extract the sign bit and add it to the quotient
- SDOperand T =
- ISelDAG->getNode(ISD::SRL, MVT::i64, Q, ISelDAG->getConstant(63, MVT::i64));
- return ISelDAG->getNode(ISD::ADD, MVT::i64, Q, T);
-}
-
-/// BuildUDIVSequence - Given an ISD::UDIV node expressing a divide by constant,
-/// return a DAG expression to select that will generate the same value by
-/// multiplying by a magic number. See:
-/// <http://the.wall.riscom.net/books/proc/ppc/cwg/code2.html>
-static SDOperand BuildUDIVSequence(SDOperand N, SelectionDAG* ISelDAG) {
- unsigned d =
- (unsigned)cast<ConstantSDNode>(N.getOperand(1))->getSignExtended();
- mu magics = magicu(d);
- // Multiply the numerator (operand 0) by the magic value
- SDOperand Q = ISelDAG->getNode(ISD::MULHU, MVT::i64, N.getOperand(0),
- ISelDAG->getConstant(magics.m, MVT::i64));
- if (magics.a == 0) {
- Q = ISelDAG->getNode(ISD::SRL, MVT::i64, Q,
- ISelDAG->getConstant(magics.s, MVT::i64));
- } else {
- SDOperand NPQ = ISelDAG->getNode(ISD::SUB, MVT::i64, N.getOperand(0), Q);
- NPQ = ISelDAG->getNode(ISD::SRL, MVT::i64, NPQ,
- ISelDAG->getConstant(1, MVT::i64));
- NPQ = ISelDAG->getNode(ISD::ADD, MVT::i64, NPQ, Q);
- Q = ISelDAG->getNode(ISD::SRL, MVT::i64, NPQ,
- ISelDAG->getConstant(magics.s-1, MVT::i64));
- }
- return Q;
-}
/// AddLiveIn - This helper function adds the specified physical register to the
/// MachineFunction as a live in value. It also creates a corresponding virtual
setSetCCResultType(MVT::i64);
setSetCCResultContents(ZeroOrOneSetCCResult);
+ setUsesGlobalOffsetTable(true);
+
addRegisterClass(MVT::i64, Alpha::GPRCRegisterClass);
addRegisterClass(MVT::f64, Alpha::F8RCRegisterClass);
addRegisterClass(MVT::f32, Alpha::F4RCRegisterClass);
- setOperationAction(ISD::BR_CC, MVT::Other, Expand);
- setOperationAction(ISD::SELECT_CC, MVT::Other, Expand);
+ setLoadXAction(ISD::EXTLOAD, MVT::i1, Promote);
+ setLoadXAction(ISD::EXTLOAD, MVT::f32, Expand);
- setOperationAction(ISD::EXTLOAD, MVT::i1, Promote);
- setOperationAction(ISD::EXTLOAD, MVT::f32, Expand);
+ setLoadXAction(ISD::ZEXTLOAD, MVT::i1, Promote);
+ setLoadXAction(ISD::ZEXTLOAD, MVT::i32, Expand);
- setOperationAction(ISD::ZEXTLOAD, MVT::i1, Promote);
- setOperationAction(ISD::ZEXTLOAD, MVT::i32, Expand);
-
- setOperationAction(ISD::SEXTLOAD, MVT::i1, Promote);
- setOperationAction(ISD::SEXTLOAD, MVT::i8, Expand);
- setOperationAction(ISD::SEXTLOAD, MVT::i16, Expand);
+ setLoadXAction(ISD::SEXTLOAD, MVT::i1, Promote);
+ setLoadXAction(ISD::SEXTLOAD, MVT::i8, Expand);
+ setLoadXAction(ISD::SEXTLOAD, MVT::i16, Expand);
+
+ setStoreXAction(MVT::i1, Promote);
- setOperationAction(ISD::TRUNCSTORE, MVT::i1, Promote);
+ // setOperationAction(ISD::BRIND, MVT::Other, Expand);
+ setOperationAction(ISD::BR_JT, MVT::Other, Expand);
+ setOperationAction(ISD::BR_CC, MVT::Other, Expand);
+ setOperationAction(ISD::SELECT_CC, MVT::Other, Expand);
+
+ setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
setOperationAction(ISD::FREM, MVT::f32, Expand);
setOperationAction(ISD::FREM, MVT::f64, Expand);
setOperationAction(ISD::UREM , MVT::i64, Custom);
setOperationAction(ISD::SDIV , MVT::i64, Custom);
setOperationAction(ISD::UDIV , MVT::i64, Custom);
-
+
setOperationAction(ISD::MEMMOVE , MVT::Other, Expand);
setOperationAction(ISD::MEMSET , MVT::Other, Expand);
setOperationAction(ISD::MEMCPY , MVT::Other, Expand);
setOperationAction(ISD::FSQRT, MVT::f64, Expand);
setOperationAction(ISD::FSQRT, MVT::f32, Expand);
- // FIXME: Alpha supports fcopysign natively!?
- setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand);
- setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand);
-
setOperationAction(ISD::SETCC, MVT::f32, Promote);
+ setOperationAction(ISD::BIT_CONVERT, MVT::f32, Promote);
+
// We don't have line number support yet.
setOperationAction(ISD::LOCATION, MVT::Other, Expand);
setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
- setOperationAction(ISD::DEBUG_LABEL, MVT::Other, Expand);
+ setOperationAction(ISD::LABEL, MVT::Other, Expand);
// Not implemented yet.
setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
setOperationAction(ISD::VAARG, MVT::Other, Custom);
setOperationAction(ISD::VAARG, MVT::i32, Custom);
+ setOperationAction(ISD::RET, MVT::Other, Custom);
+
+ setOperationAction(ISD::JumpTable, MVT::i64, Custom);
+ setOperationAction(ISD::JumpTable, MVT::i32, Custom);
+
setStackPointerRegisterToSaveRestore(Alpha::R30);
setOperationAction(ISD::ConstantFP, MVT::f64, Expand);
addLegalFPImmediate(+0.0); //F31
addLegalFPImmediate(-0.0); //-F31
- computeRegisterProperties();
+ setJumpBufSize(272);
+ setJumpBufAlignment(16);
- useITOF = TM.getSubtarget<AlphaSubtarget>().hasF2I();
+ computeRegisterProperties();
}
const char *AlphaTargetLowering::getTargetNodeName(unsigned Opcode) const {
switch (Opcode) {
default: return 0;
- case AlphaISD::ITOFT_: return "Alpha::ITOFT_";
- case AlphaISD::FTOIT_: return "Alpha::FTOIT_";
case AlphaISD::CVTQT_: return "Alpha::CVTQT_";
case AlphaISD::CVTQS_: return "Alpha::CVTQS_";
case AlphaISD::CVTTQ_: return "Alpha::CVTTQ_";
case AlphaISD::GPRelHi: return "Alpha::GPRelHi";
case AlphaISD::GPRelLo: return "Alpha::GPRelLo";
case AlphaISD::RelLit: return "Alpha::RelLit";
- case AlphaISD::GlobalBaseReg: return "Alpha::GlobalBaseReg";
+ case AlphaISD::GlobalRetAddr: return "Alpha::GlobalRetAddr";
case AlphaISD::CALL: return "Alpha::CALL";
case AlphaISD::DivCall: return "Alpha::DivCall";
+ case AlphaISD::RET_FLAG: return "Alpha::RET_FLAG";
+ case AlphaISD::COND_BRANCH_I: return "Alpha::COND_BRANCH_I";
+ case AlphaISD::COND_BRANCH_F: return "Alpha::COND_BRANCH_F";
}
}
-//http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PY8AC-TET1_html/callCH3.html#BLOCK21
+static SDOperand LowerJumpTable(SDOperand Op, SelectionDAG &DAG) {
+ MVT::ValueType PtrVT = Op.getValueType();
+ JumpTableSDNode *JT = cast<JumpTableSDNode>(Op);
+ SDOperand JTI = DAG.getTargetJumpTable(JT->getIndex(), PtrVT);
+ SDOperand Zero = DAG.getConstant(0, PtrVT);
+
+ SDOperand Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, JTI,
+ DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
+ SDOperand Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, JTI, Hi);
+ return Lo;
+}
+
+//http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/
+//AA-PY8AC-TET1_html/callCH3.html#BLOCK21
//For now, just use variable size stack frame format
// //#define GP $29
// //#define SP $30
-std::vector<SDOperand>
-AlphaTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG)
-{
+static SDOperand LowerFORMAL_ARGUMENTS(SDOperand Op, SelectionDAG &DAG,
+ int &VarArgsBase,
+ int &VarArgsOffset) {
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
- MachineBasicBlock& BB = MF.front();
std::vector<SDOperand> ArgValues;
+ SDOperand Root = Op.getOperand(0);
+
+ AddLiveIn(MF, Alpha::R29, &Alpha::GPRCRegClass); //GP
+ AddLiveIn(MF, Alpha::R26, &Alpha::GPRCRegClass); //RA
unsigned args_int[] = {
Alpha::R16, Alpha::R17, Alpha::R18, Alpha::R19, Alpha::R20, Alpha::R21};
unsigned args_float[] = {
Alpha::F16, Alpha::F17, Alpha::F18, Alpha::F19, Alpha::F20, Alpha::F21};
-
- int count = 0;
-
- GP = AddLiveIn(MF, Alpha::R29, getRegClassFor(MVT::i64));
- RA = AddLiveIn(MF, Alpha::R26, getRegClassFor(MVT::i64));
-
- for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; ++I)
- {
+
+ for (unsigned ArgNo = 0, e = Op.Val->getNumValues()-1; ArgNo != e; ++ArgNo) {
SDOperand argt;
- if (count < 6) {
- unsigned Vreg;
- MVT::ValueType VT = getValueType(I->getType());
- switch (VT) {
+ MVT::ValueType ObjectVT = Op.getValue(ArgNo).getValueType();
+ SDOperand ArgVal;
+
+ if (ArgNo < 6) {
+ switch (ObjectVT) {
default:
- std::cerr << "Unknown Type " << VT << "\n";
+ cerr << "Unknown Type " << ObjectVT << "\n";
abort();
case MVT::f64:
+ args_float[ArgNo] = AddLiveIn(MF, args_float[ArgNo],
+ &Alpha::F8RCRegClass);
+ ArgVal = DAG.getCopyFromReg(Root, args_float[ArgNo], ObjectVT);
+ break;
case MVT::f32:
- args_float[count] = AddLiveIn(MF, args_float[count], getRegClassFor(VT));
- argt = DAG.getCopyFromReg(DAG.getRoot(), args_float[count], VT);
- DAG.setRoot(argt.getValue(1));
+ args_float[ArgNo] = AddLiveIn(MF, args_float[ArgNo],
+ &Alpha::F4RCRegClass);
+ ArgVal = DAG.getCopyFromReg(Root, args_float[ArgNo], ObjectVT);
break;
- case MVT::i1:
- case MVT::i8:
- case MVT::i16:
- case MVT::i32:
case MVT::i64:
- args_int[count] = AddLiveIn(MF, args_int[count], getRegClassFor(MVT::i64));
- argt = DAG.getCopyFromReg(DAG.getRoot(), args_int[count], MVT::i64);
- DAG.setRoot(argt.getValue(1));
- if (VT != MVT::i64) {
- unsigned AssertOp =
- I->getType()->isSigned() ? ISD::AssertSext : ISD::AssertZext;
- argt = DAG.getNode(AssertOp, MVT::i64, argt,
- DAG.getValueType(VT));
- argt = DAG.getNode(ISD::TRUNCATE, VT, argt);
- }
+ args_int[ArgNo] = AddLiveIn(MF, args_int[ArgNo],
+ &Alpha::GPRCRegClass);
+ ArgVal = DAG.getCopyFromReg(Root, args_int[ArgNo], MVT::i64);
break;
}
} else { //more args
// Create the frame index object for this incoming parameter...
- int FI = MFI->CreateFixedObject(8, 8 * (count - 6));
+ int FI = MFI->CreateFixedObject(8, 8 * (ArgNo - 6));
// Create the SelectionDAG nodes corresponding to a load
//from this parameter
SDOperand FIN = DAG.getFrameIndex(FI, MVT::i64);
- argt = DAG.getLoad(getValueType(I->getType()),
- DAG.getEntryNode(), FIN, DAG.getSrcValue(NULL));
+ ArgVal = DAG.getLoad(ObjectVT, Root, FIN, NULL, 0);
}
- ++count;
- ArgValues.push_back(argt);
+ ArgValues.push_back(ArgVal);
}
// If the functions takes variable number of arguments, copy all regs to stack
- if (F.isVarArg()) {
- VarArgsOffset = count * 8;
+ bool isVarArg = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
+ if (isVarArg) {
+ VarArgsOffset = (Op.Val->getNumValues()-1) * 8;
std::vector<SDOperand> LS;
for (int i = 0; i < 6; ++i) {
if (MRegisterInfo::isPhysicalRegister(args_int[i]))
- args_int[i] = AddLiveIn(MF, args_int[i], getRegClassFor(MVT::i64));
- SDOperand argt = DAG.getCopyFromReg(DAG.getRoot(), args_int[i], MVT::i64);
+ args_int[i] = AddLiveIn(MF, args_int[i], &Alpha::GPRCRegClass);
+ SDOperand argt = DAG.getCopyFromReg(Root, args_int[i], MVT::i64);
int FI = MFI->CreateFixedObject(8, -8 * (6 - i));
if (i == 0) VarArgsBase = FI;
SDOperand SDFI = DAG.getFrameIndex(FI, MVT::i64);
- LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getRoot(), argt,
- SDFI, DAG.getSrcValue(NULL)));
+ LS.push_back(DAG.getStore(Root, argt, SDFI, NULL, 0));
if (MRegisterInfo::isPhysicalRegister(args_float[i]))
- args_float[i] = AddLiveIn(MF, args_float[i], getRegClassFor(MVT::f64));
- argt = DAG.getCopyFromReg(DAG.getRoot(), args_float[i], MVT::f64);
+ args_float[i] = AddLiveIn(MF, args_float[i], &Alpha::F8RCRegClass);
+ argt = DAG.getCopyFromReg(Root, args_float[i], MVT::f64);
FI = MFI->CreateFixedObject(8, - 8 * (12 - i));
SDFI = DAG.getFrameIndex(FI, MVT::i64);
- LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getRoot(), argt,
- SDFI, DAG.getSrcValue(NULL)));
+ LS.push_back(DAG.getStore(Root, argt, SDFI, NULL, 0));
}
//Set up a token factor with all the stack traffic
- DAG.setRoot(DAG.getNode(ISD::TokenFactor, MVT::Other, LS));
+ Root = DAG.getNode(ISD::TokenFactor, MVT::Other, &LS[0], LS.size());
}
- // Finally, inform the code generator which regs we return values in.
- switch (getValueType(F.getReturnType())) {
- default: assert(0 && "Unknown type!");
- case MVT::isVoid: break;
- case MVT::i1:
- case MVT::i8:
- case MVT::i16:
- case MVT::i32:
- case MVT::i64:
- MF.addLiveOut(Alpha::R0);
+ ArgValues.push_back(Root);
+
+ // Return the new list of results.
+ std::vector<MVT::ValueType> RetVT(Op.Val->value_begin(),
+ Op.Val->value_end());
+ return DAG.getNode(ISD::MERGE_VALUES, RetVT, &ArgValues[0], ArgValues.size());
+}
+
+static SDOperand LowerRET(SDOperand Op, SelectionDAG &DAG) {
+ SDOperand Copy = DAG.getCopyToReg(Op.getOperand(0), Alpha::R26,
+ DAG.getNode(AlphaISD::GlobalRetAddr,
+ MVT::i64),
+ SDOperand());
+ switch (Op.getNumOperands()) {
+ default:
+ assert(0 && "Do not know how to return this many arguments!");
+ abort();
+ case 1:
break;
- case MVT::f32:
- case MVT::f64:
- MF.addLiveOut(Alpha::F0);
+ //return SDOperand(); // ret void is legal
+ case 3: {
+ MVT::ValueType ArgVT = Op.getOperand(1).getValueType();
+ unsigned ArgReg;
+ if (MVT::isInteger(ArgVT))
+ ArgReg = Alpha::R0;
+ else {
+ assert(MVT::isFloatingPoint(ArgVT));
+ ArgReg = Alpha::F0;
+ }
+ Copy = DAG.getCopyToReg(Copy, ArgReg, Op.getOperand(1), Copy.getValue(1));
+ if(DAG.getMachineFunction().liveout_empty())
+ DAG.getMachineFunction().addLiveOut(ArgReg);
break;
}
-
- //return the arguments+
- return ArgValues;
+ }
+ return DAG.getNode(AlphaISD::RET_FLAG, MVT::Other, Copy, Copy.getValue(1));
}
std::pair<SDOperand, SDOperand>
-AlphaTargetLowering::LowerCallTo(SDOperand Chain,
- const Type *RetTy, bool isVarArg,
+AlphaTargetLowering::LowerCallTo(SDOperand Chain, const Type *RetTy,
+ bool RetTyIsSigned, bool isVarArg,
unsigned CallingConv, bool isTailCall,
SDOperand Callee, ArgListTy &Args,
SelectionDAG &DAG) {
std::vector<SDOperand> args_to_use;
for (unsigned i = 0, e = Args.size(); i != e; ++i)
{
- switch (getValueType(Args[i].second)) {
+ switch (getValueType(Args[i].Ty)) {
default: assert(0 && "Unexpected ValueType for argument!");
case MVT::i1:
case MVT::i8:
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].second->isSigned())
- Args[i].first = DAG.getNode(ISD::SIGN_EXTEND, MVT::i64, Args[i].first);
+ if (Args[i].isSigned)
+ Args[i].Node = DAG.getNode(ISD::SIGN_EXTEND, MVT::i64, Args[i].Node);
else
- Args[i].first = DAG.getNode(ISD::ZERO_EXTEND, MVT::i64, Args[i].first);
+ Args[i].Node = DAG.getNode(ISD::ZERO_EXTEND, MVT::i64, Args[i].Node);
break;
case MVT::i64:
case MVT::f64:
case MVT::f32:
break;
}
- args_to_use.push_back(Args[i].first);
+ args_to_use.push_back(Args[i].Node);
}
std::vector<MVT::ValueType> RetVals;
Ops.push_back(Chain);
Ops.push_back(Callee);
Ops.insert(Ops.end(), args_to_use.begin(), args_to_use.end());
- SDOperand TheCall = DAG.getNode(AlphaISD::CALL, RetVals, Ops);
+ SDOperand TheCall = DAG.getNode(AlphaISD::CALL, RetVals, &Ops[0], Ops.size());
Chain = TheCall.getValue(RetTyVT != MVT::isVoid);
Chain = DAG.getNode(ISD::CALLSEQ_END, MVT::Other, Chain,
DAG.getConstant(NumBytes, getPointerTy()));
SDOperand RetVal = TheCall;
if (RetTyVT != ActualRetTyVT) {
- RetVal = DAG.getNode(RetTy->isSigned() ? ISD::AssertSext : ISD::AssertZext,
+ RetVal = DAG.getNode(RetTyIsSigned ? ISD::AssertSext : ISD::AssertZext,
MVT::i64, RetVal, DAG.getValueType(RetTyVT));
RetVal = DAG.getNode(ISD::TRUNCATE, RetTyVT, RetVal);
}
return std::make_pair(RetVal, Chain);
}
-void AlphaTargetLowering::restoreGP(MachineBasicBlock* BB)
-{
- BuildMI(BB, Alpha::BIS, 2, Alpha::R29).addReg(GP).addReg(GP);
-}
-void AlphaTargetLowering::restoreRA(MachineBasicBlock* BB)
-{
- BuildMI(BB, Alpha::BIS, 2, Alpha::R26).addReg(RA).addReg(RA);
-}
-
-static int getUID()
-{
- static int id = 0;
- return ++id;
-}
-
/// LowerOperation - Provide custom lowering hooks for some operations.
///
SDOperand AlphaTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
switch (Op.getOpcode()) {
- default: assert(0 && "Wasn't expecting to be able to lower this!");
+ default: assert(0 && "Wasn't expecting to be able to lower this!");
+ case ISD::FORMAL_ARGUMENTS: return LowerFORMAL_ARGUMENTS(Op, DAG,
+ VarArgsBase,
+ VarArgsOffset);
+
+ case ISD::RET: return LowerRET(Op,DAG);
+ case ISD::JumpTable: return LowerJumpTable(Op, DAG);
+
case ISD::SINT_TO_FP: {
assert(MVT::i64 == Op.getOperand(0).getValueType() &&
"Unhandled SINT_TO_FP type in custom expander!");
SDOperand LD;
bool isDouble = MVT::f64 == Op.getValueType();
- if (useITOF) {
- LD = DAG.getNode(AlphaISD::ITOFT_, MVT::f64, Op.getOperand(0));
- } else {
- int FrameIdx =
- DAG.getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
- SDOperand FI = DAG.getFrameIndex(FrameIdx, MVT::i64);
- SDOperand ST = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(),
- Op.getOperand(0), FI, DAG.getSrcValue(0));
- LD = DAG.getLoad(MVT::f64, ST, FI, DAG.getSrcValue(0));
- }
+ LD = DAG.getNode(ISD::BIT_CONVERT, MVT::f64, Op.getOperand(0));
SDOperand FP = DAG.getNode(isDouble?AlphaISD::CVTQT_:AlphaISD::CVTQS_,
isDouble?MVT::f64:MVT::f32, LD);
return FP;
src = DAG.getNode(AlphaISD::CVTTQ_, MVT::f64, src);
- if (useITOF) {
- return DAG.getNode(AlphaISD::FTOIT_, MVT::i64, src);
- } else {
- int FrameIdx =
- DAG.getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
- SDOperand FI = DAG.getFrameIndex(FrameIdx, MVT::i64);
- SDOperand ST = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(),
- src, FI, DAG.getSrcValue(0));
- return DAG.getLoad(MVT::i64, ST, FI, DAG.getSrcValue(0));
- }
+ return DAG.getNode(ISD::BIT_CONVERT, MVT::i64, src);
}
case ISD::ConstantPool: {
ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op);
- Constant *C = CP->get();
+ Constant *C = CP->getConstVal();
SDOperand CPI = DAG.getTargetConstantPool(C, MVT::i64, CP->getAlignment());
SDOperand Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, CPI,
- DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
+ DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
SDOperand Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, CPI, Hi);
return Lo;
}
GlobalValue *GV = GSDN->getGlobal();
SDOperand GA = DAG.getTargetGlobalAddress(GV, MVT::i64, GSDN->getOffset());
- if (!GV->hasWeakLinkage() && !GV->isExternal()) {
+ // if (!GV->hasWeakLinkage() && !GV->isExternal() && !GV->hasLinkOnceLinkage()) {
+ if (GV->hasInternalLinkage()) {
SDOperand Hi = DAG.getNode(AlphaISD::GPRelHi, MVT::i64, GA,
- DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
+ DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
SDOperand Lo = DAG.getNode(AlphaISD::GPRelLo, MVT::i64, GA, Hi);
return Lo;
} else
- return DAG.getNode(AlphaISD::RelLit, MVT::i64, GA, DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
+ return DAG.getNode(AlphaISD::RelLit, MVT::i64, GA,
+ DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
}
case ISD::ExternalSymbol: {
return DAG.getNode(AlphaISD::RelLit, MVT::i64,
- DAG.getTargetExternalSymbol(cast<ExternalSymbolSDNode>(Op)->getSymbol(), MVT::i64),
- DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64));
+ DAG.getTargetExternalSymbol(cast<ExternalSymbolSDNode>(Op)
+ ->getSymbol(), MVT::i64),
+ DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, MVT::i64));
}
case ISD::UREM:
//Expand only on constant case
if (Op.getOperand(1).getOpcode() == ISD::Constant) {
MVT::ValueType VT = Op.Val->getValueType(0);
- unsigned Opc = Op.Val->getOpcode() == ISD::UREM ? ISD::UDIV : ISD::SDIV;
SDOperand Tmp1 = Op.Val->getOpcode() == ISD::UREM ?
- BuildUDIVSequence(Op, &DAG) :
- BuildSDIVSequence(Op, &DAG);
+ BuildUDIV(Op.Val, DAG, NULL) :
+ BuildSDIV(Op.Val, DAG, NULL);
Tmp1 = DAG.getNode(ISD::MUL, VT, Tmp1, Op.getOperand(1));
Tmp1 = DAG.getNode(ISD::SUB, VT, Op.getOperand(0), Tmp1);
return Tmp1;
case ISD::SDIV:
case ISD::UDIV:
if (MVT::isInteger(Op.getValueType())) {
+ if (Op.getOperand(1).getOpcode() == ISD::Constant)
+ return Op.getOpcode() == ISD::SDIV ? BuildSDIV(Op.Val, DAG, NULL)
+ : BuildUDIV(Op.Val, DAG, NULL);
const char* opstr = 0;
switch(Op.getOpcode()) {
case ISD::UREM: opstr = "__remqu"; break;
case ISD::VAARG: {
SDOperand Chain = Op.getOperand(0);
SDOperand VAListP = Op.getOperand(1);
- SDOperand VAListS = Op.getOperand(2);
+ SrcValueSDNode *VAListS = cast<SrcValueSDNode>(Op.getOperand(2));
- SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP, VAListS);
+ SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP, VAListS->getValue(),
+ VAListS->getOffset());
SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
SDOperand Offset = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Base.getValue(1),
- Tmp, DAG.getSrcValue(0), MVT::i32);
+ Tmp, NULL, 0, MVT::i32);
SDOperand DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset);
if (MVT::isFloatingPoint(Op.getValueType()))
{
SDOperand NewOffset = DAG.getNode(ISD::ADD, MVT::i64, Offset,
DAG.getConstant(8, MVT::i64));
- SDOperand Update = DAG.getNode(ISD::TRUNCSTORE, MVT::Other,
- Offset.getValue(1), NewOffset,
- Tmp, DAG.getSrcValue(0),
- DAG.getValueType(MVT::i32));
+ SDOperand Update = DAG.getTruncStore(Offset.getValue(1), NewOffset,
+ Tmp, NULL, 0, MVT::i32);
SDOperand Result;
if (Op.getValueType() == MVT::i32)
Result = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Update, DataPtr,
- DAG.getSrcValue(0), MVT::i32);
+ NULL, 0, MVT::i32);
else
- Result = DAG.getLoad(Op.getValueType(), Update, DataPtr,
- DAG.getSrcValue(0));
+ Result = DAG.getLoad(Op.getValueType(), Update, DataPtr, NULL, 0);
return Result;
}
case ISD::VACOPY: {
SDOperand Chain = Op.getOperand(0);
SDOperand DestP = Op.getOperand(1);
SDOperand SrcP = Op.getOperand(2);
- SDOperand DestS = Op.getOperand(3);
- SDOperand SrcS = Op.getOperand(4);
+ SrcValueSDNode *DestS = cast<SrcValueSDNode>(Op.getOperand(3));
+ SrcValueSDNode *SrcS = cast<SrcValueSDNode>(Op.getOperand(4));
- SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP, SrcS);
- SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Val.getValue(1), Val,
- DestP, DestS);
+ SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP,
+ SrcS->getValue(), SrcS->getOffset());
+ SDOperand Result = DAG.getStore(Val.getValue(1), Val, DestP, DestS->getValue(),
+ DestS->getOffset());
SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP,
DAG.getConstant(8, MVT::i64));
- Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP,
- DAG.getSrcValue(0), MVT::i32);
+ Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP, NULL,0, MVT::i32);
SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP,
DAG.getConstant(8, MVT::i64));
- return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1),
- Val, NPD, DAG.getSrcValue(0),DAG.getValueType(MVT::i32));
+ return DAG.getTruncStore(Val.getValue(1), Val, NPD, NULL, 0, MVT::i32);
}
case ISD::VASTART: {
SDOperand Chain = Op.getOperand(0);
SDOperand VAListP = Op.getOperand(1);
- SDOperand VAListS = Op.getOperand(2);
+ SrcValueSDNode *VAListS = cast<SrcValueSDNode>(Op.getOperand(2));
// vastart stores the address of the VarArgsBase and VarArgsOffset
SDOperand FR = DAG.getFrameIndex(VarArgsBase, MVT::i64);
- SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, VAListP,
- VAListS);
+ SDOperand S1 = DAG.getStore(Chain, FR, VAListP, VAListS->getValue(),
+ VAListS->getOffset());
SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
- return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1,
- DAG.getConstant(VarArgsOffset, MVT::i64), SA2,
- DAG.getSrcValue(0), DAG.getValueType(MVT::i32));
+ return DAG.getTruncStore(S1, DAG.getConstant(VarArgsOffset, MVT::i64),
+ SA2, NULL, 0, MVT::i32);
}
}
// The code in LowerOperation already handles i32 vaarg
return LowerOperation(Op, DAG);
}
+
+
+//Inline Asm
+
+/// getConstraintType - Given a constraint letter, return the type of
+/// constraint it is for this target.
+AlphaTargetLowering::ConstraintType
+AlphaTargetLowering::getConstraintType(char ConstraintLetter) const {
+ switch (ConstraintLetter) {
+ default: break;
+ case 'f':
+ case 'r':
+ return C_RegisterClass;
+ }
+ return TargetLowering::getConstraintType(ConstraintLetter);
+}
+
+std::vector<unsigned> AlphaTargetLowering::
+getRegClassForInlineAsmConstraint(const std::string &Constraint,
+ MVT::ValueType VT) const {
+ if (Constraint.size() == 1) {
+ switch (Constraint[0]) {
+ default: break; // Unknown constriant letter
+ case 'f':
+ return make_vector<unsigned>(Alpha::F0 , Alpha::F1 , Alpha::F2 ,
+ Alpha::F3 , Alpha::F4 , Alpha::F5 ,
+ Alpha::F6 , Alpha::F7 , Alpha::F8 ,
+ Alpha::F9 , Alpha::F10, Alpha::F11,
+ Alpha::F12, Alpha::F13, Alpha::F14,
+ Alpha::F15, Alpha::F16, Alpha::F17,
+ Alpha::F18, Alpha::F19, Alpha::F20,
+ Alpha::F21, Alpha::F22, Alpha::F23,
+ Alpha::F24, Alpha::F25, Alpha::F26,
+ Alpha::F27, Alpha::F28, Alpha::F29,
+ Alpha::F30, Alpha::F31, 0);
+ case 'r':
+ return make_vector<unsigned>(Alpha::R0 , Alpha::R1 , Alpha::R2 ,
+ Alpha::R3 , Alpha::R4 , Alpha::R5 ,
+ Alpha::R6 , Alpha::R7 , Alpha::R8 ,
+ Alpha::R9 , Alpha::R10, Alpha::R11,
+ Alpha::R12, Alpha::R13, Alpha::R14,
+ Alpha::R15, Alpha::R16, Alpha::R17,
+ Alpha::R18, Alpha::R19, Alpha::R20,
+ Alpha::R21, Alpha::R22, Alpha::R23,
+ Alpha::R24, Alpha::R25, Alpha::R26,
+ Alpha::R27, Alpha::R28, Alpha::R29,
+ Alpha::R30, Alpha::R31, 0);
+
+ }
+ }
+
+ return std::vector<unsigned>();
+}
projects / oota-llvm.git / blobdiff