#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/IntegersSubsetMapping.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetSelectionDAGInfo.h"
#include <algorithm>
using namespace llvm;
assert(PartEVT.getVectorNumElements() > ValueVT.getVectorNumElements() &&
"Cannot narrow, it would be a lossy transformation");
return DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, ValueVT, Val,
- DAG.getIntPtrConstant(0));
+ DAG.getConstant(0, TLI.getVectorIdxTy()));
}
// Vector/Vector bitcast.
SmallVector<SDValue, 16> Ops;
for (unsigned i = 0, e = ValueVT.getVectorNumElements(); i != e; ++i)
Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL,
- ElementVT, Val, DAG.getIntPtrConstant(i)));
+ ElementVT, Val, DAG.getConstant(i,
+ TLI.getVectorIdxTy())));
for (unsigned i = ValueVT.getVectorNumElements(),
e = PartVT.getVectorNumElements(); i != e; ++i)
assert(ValueVT.getVectorNumElements() == 1 &&
"Only trivial vector-to-scalar conversions should get here!");
Val = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL,
- PartVT, Val, DAG.getIntPtrConstant(0));
+ PartVT, Val, DAG.getConstant(0, TLI.getVectorIdxTy()));
bool Smaller = ValueVT.bitsLE(PartVT);
Val = DAG.getNode((Smaller ? ISD::TRUNCATE : ISD::ANY_EXTEND),
if (IntermediateVT.isVector())
Ops[i] = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL,
IntermediateVT, Val,
- DAG.getIntPtrConstant(i * (NumElements / NumIntermediates)));
+ DAG.getConstant(i * (NumElements / NumIntermediates),
+ TLI.getVectorIdxTy()));
else
Ops[i] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL,
- IntermediateVT, Val, DAG.getIntPtrConstant(i));
+ IntermediateVT, Val,
+ DAG.getConstant(i, TLI.getVectorIdxTy()));
}
// Split the intermediate operands into legal parts.
DenseMap<const Value *, unsigned>::iterator It = FuncInfo.ValueMap.find(V);
if (It != FuncInfo.ValueMap.end()) {
unsigned InReg = It->second;
- RegsForValue RFV(*DAG.getContext(), TLI, InReg, V->getType());
+ RegsForValue RFV(*DAG.getContext(), *TM.getTargetLowering(),
+ InReg, V->getType());
SDValue Chain = DAG.getEntryNode();
N = RFV.getCopyFromRegs(DAG, FuncInfo, getCurSDLoc(), Chain, NULL, V);
resolveDanglingDebugInfo(V, N);
/// getValueImpl - Helper function for getValue and getNonRegisterValue.
/// Create an SDValue for the given value.
SDValue SelectionDAGBuilder::getValueImpl(const Value *V) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+
if (const Constant *C = dyn_cast<Constant>(V)) {
- EVT VT = TLI.getValueType(V->getType(), true);
+ EVT VT = TLI->getValueType(V->getType(), true);
if (const ConstantInt *CI = dyn_cast<ConstantInt>(C))
return DAG.getConstant(*CI, VT);
return DAG.getGlobalAddress(GV, getCurSDLoc(), VT);
if (isa<ConstantPointerNull>(C))
- return DAG.getConstant(0, TLI.getPointerTy());
+ return DAG.getConstant(0, TLI->getPointerTy());
if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C))
return DAG.getConstantFP(*CFP, VT);
return DAG.getMergeValues(&Constants[0], Constants.size(),
getCurSDLoc());
}
-
+
if (const ConstantDataSequential *CDS =
dyn_cast<ConstantDataSequential>(C)) {
SmallVector<SDValue, 4> Ops;
"Unknown struct or array constant!");
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, C->getType(), ValueVTs);
+ ComputeValueVTs(*TLI, C->getType(), ValueVTs);
unsigned NumElts = ValueVTs.size();
if (NumElts == 0)
return SDValue(); // empty struct
Ops.push_back(getValue(CV->getOperand(i)));
} else {
assert(isa<ConstantAggregateZero>(C) && "Unknown vector constant!");
- EVT EltVT = TLI.getValueType(VecTy->getElementType());
+ EVT EltVT = TLI->getValueType(VecTy->getElementType());
SDValue Op;
if (EltVT.isFloatingPoint())
DenseMap<const AllocaInst*, int>::iterator SI =
FuncInfo.StaticAllocaMap.find(AI);
if (SI != FuncInfo.StaticAllocaMap.end())
- return DAG.getFrameIndex(SI->second, TLI.getPointerTy());
+ return DAG.getFrameIndex(SI->second, TLI->getPointerTy());
}
// If this is an instruction which fast-isel has deferred, select it now.
if (const Instruction *Inst = dyn_cast<Instruction>(V)) {
unsigned InReg = FuncInfo.InitializeRegForValue(Inst);
- RegsForValue RFV(*DAG.getContext(), TLI, InReg, Inst->getType());
+ RegsForValue RFV(*DAG.getContext(), *TLI, InReg, Inst->getType());
SDValue Chain = DAG.getEntryNode();
return RFV.getCopyFromRegs(DAG, FuncInfo, getCurSDLoc(), Chain, NULL, V);
}
}
void SelectionDAGBuilder::visitRet(const ReturnInst &I) {
+ const TargetLowering *TLI = TM.getTargetLowering();
SDValue Chain = getControlRoot();
SmallVector<ISD::OutputArg, 8> Outs;
SmallVector<SDValue, 8> OutVals;
// Leave Outs empty so that LowerReturn won't try to load return
// registers the usual way.
SmallVector<EVT, 1> PtrValueVTs;
- ComputeValueVTs(TLI, PointerType::getUnqual(F->getReturnType()),
+ ComputeValueVTs(*TLI, PointerType::getUnqual(F->getReturnType()),
PtrValueVTs);
SDValue RetPtr = DAG.getRegister(DemoteReg, PtrValueVTs[0]);
SmallVector<EVT, 4> ValueVTs;
SmallVector<uint64_t, 4> Offsets;
- ComputeValueVTs(TLI, I.getOperand(0)->getType(), ValueVTs, &Offsets);
+ ComputeValueVTs(*TLI, I.getOperand(0)->getType(), ValueVTs, &Offsets);
unsigned NumValues = ValueVTs.size();
SmallVector<SDValue, 4> Chains(NumValues);
MVT::Other, &Chains[0], NumValues);
} else if (I.getNumOperands() != 0) {
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, I.getOperand(0)->getType(), ValueVTs);
+ ComputeValueVTs(*TLI, I.getOperand(0)->getType(), ValueVTs);
unsigned NumValues = ValueVTs.size();
if (NumValues) {
SDValue RetOp = getValue(I.getOperand(0));
ExtendKind = ISD::ZERO_EXTEND;
if (ExtendKind != ISD::ANY_EXTEND && VT.isInteger())
- VT = TLI.getTypeForExtArgOrReturn(VT.getSimpleVT(), ExtendKind);
+ VT = TLI->getTypeForExtArgOrReturn(VT.getSimpleVT(), ExtendKind);
- unsigned NumParts = TLI.getNumRegisters(*DAG.getContext(), VT);
- MVT PartVT = TLI.getRegisterType(*DAG.getContext(), VT);
+ unsigned NumParts = TLI->getNumRegisters(*DAG.getContext(), VT);
+ MVT PartVT = TLI->getRegisterType(*DAG.getContext(), VT);
SmallVector<SDValue, 4> Parts(NumParts);
getCopyToParts(DAG, getCurSDLoc(),
SDValue(RetOp.getNode(), RetOp.getResNo() + j),
bool isVarArg = DAG.getMachineFunction().getFunction()->isVarArg();
CallingConv::ID CallConv =
DAG.getMachineFunction().getFunction()->getCallingConv();
- Chain = TLI.LowerReturn(Chain, CallConv, isVarArg,
- Outs, OutVals, getCurSDLoc(), DAG);
+ Chain = TM.getTargetLowering()->LowerReturn(Chain, CallConv, isVarArg,
+ Outs, OutVals, getCurSDLoc(),
+ DAG);
// Verify that the target's LowerReturn behaved as expected.
assert(Chain.getNode() && Chain.getValueType() == MVT::Other &&
/// If we should emit this as a bunch of and/or'd together conditions, return
/// false.
bool
-SelectionDAGBuilder::ShouldEmitAsBranches(const std::vector<CaseBlock> &Cases){
+SelectionDAGBuilder::ShouldEmitAsBranches(const std::vector<CaseBlock> &Cases) {
if (Cases.size() != 2) return true;
// If this is two comparisons of the same values or'd or and'd together, they
// jle foo
//
if (const BinaryOperator *BOp = dyn_cast<BinaryOperator>(CondVal)) {
- if (!TLI.isJumpExpensive() &&
+ if (!TM.getTargetLowering()->isJumpExpensive() &&
BOp->hasOneUse() &&
(BOp->getOpcode() == Instruction::And ||
BOp->getOpcode() == Instruction::Or)) {
} else
Cond = DAG.getSetCC(dl, MVT::i1, CondLHS, getValue(CB.CmpRHS), CB.CC);
} else {
- assert(CB.CC == ISD::SETCC_INVALID &&
- "Condition is undefined for to-the-range belonging check.");
+ assert(CB.CC == ISD::SETLE && "Can handle only LE ranges now");
const APInt& Low = cast<ConstantInt>(CB.CmpLHS)->getValue();
const APInt& High = cast<ConstantInt>(CB.CmpRHS)->getValue();
SDValue CmpOp = getValue(CB.CmpMHS);
EVT VT = CmpOp.getValueType();
-
- if (cast<ConstantInt>(CB.CmpLHS)->isMinValue(false)) {
+
+ if (cast<ConstantInt>(CB.CmpLHS)->isMinValue(true)) {
Cond = DAG.getSetCC(dl, MVT::i1, CmpOp, DAG.getConstant(High, VT),
- ISD::SETULE);
+ ISD::SETLE);
} else {
SDValue SUB = DAG.getNode(ISD::SUB, dl,
VT, CmpOp, DAG.getConstant(Low, VT));
void SelectionDAGBuilder::visitJumpTable(JumpTable &JT) {
// Emit the code for the jump table
assert(JT.Reg != -1U && "Should lower JT Header first!");
- EVT PTy = TLI.getPointerTy();
+ EVT PTy = TM.getTargetLowering()->getPointerTy();
SDValue Index = DAG.getCopyFromReg(getControlRoot(), getCurSDLoc(),
JT.Reg, PTy);
SDValue Table = DAG.getJumpTable(JT.JTI, PTy);
// can be used as an index into the jump table in a subsequent basic block.
// This value may be smaller or larger than the target's pointer type, and
// therefore require extension or truncating.
- SwitchOp = DAG.getZExtOrTrunc(Sub, getCurSDLoc(), TLI.getPointerTy());
+ const TargetLowering *TLI = TM.getTargetLowering();
+ SwitchOp = DAG.getZExtOrTrunc(Sub, getCurSDLoc(), TLI->getPointerTy());
- unsigned JumpTableReg = FuncInfo.CreateReg(TLI.getPointerTy());
+ unsigned JumpTableReg = FuncInfo.CreateReg(TLI->getPointerTy());
SDValue CopyTo = DAG.getCopyToReg(getControlRoot(), getCurSDLoc(),
JumpTableReg, SwitchOp);
JT.Reg = JumpTableReg;
// for the switch statement if the value being switched on exceeds the largest
// case in the switch.
SDValue CMP = DAG.getSetCC(getCurSDLoc(),
- TLI.getSetCCResultType(*DAG.getContext(),
- Sub.getValueType()),
+ TLI->getSetCCResultType(*DAG.getContext(),
+ Sub.getValueType()),
Sub,
DAG.getConstant(JTH.Last - JTH.First,VT),
ISD::SETUGT);
DAG.setRoot(BrCond);
}
+/// Codegen a new tail for a stack protector check ParentMBB which has had its
+/// tail spliced into a stack protector check success bb.
+///
+/// For a high level explanation of how this fits into the stack protector
+/// generation see the comment on the declaration of class
+/// StackProtectorDescriptor.
+void SelectionDAGBuilder::visitSPDescriptorParent(StackProtectorDescriptor &SPD,
+ MachineBasicBlock *ParentBB) {
+
+ // First create the loads to the guard/stack slot for the comparison.
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT PtrTy = TLI->getPointerTy();
+
+ MachineFrameInfo *MFI = ParentBB->getParent()->getFrameInfo();
+ int FI = MFI->getStackProtectorIndex();
+
+ const Value *IRGuard = SPD.getGuard();
+ SDValue GuardPtr = getValue(IRGuard);
+ SDValue StackSlotPtr = DAG.getFrameIndex(FI, PtrTy);
+
+ unsigned Align =
+ TLI->getDataLayout()->getPrefTypeAlignment(IRGuard->getType());
+ SDValue Guard = DAG.getLoad(PtrTy, getCurSDLoc(), DAG.getEntryNode(),
+ GuardPtr, MachinePointerInfo(IRGuard, 0),
+ true, false, false, Align);
+
+ SDValue StackSlot = DAG.getLoad(PtrTy, getCurSDLoc(), DAG.getEntryNode(),
+ StackSlotPtr,
+ MachinePointerInfo::getFixedStack(FI),
+ true, false, false, Align);
+
+ // Perform the comparison via a subtract/getsetcc.
+ EVT VT = Guard.getValueType();
+ SDValue Sub = DAG.getNode(ISD::SUB, getCurSDLoc(), VT, Guard, StackSlot);
+
+ SDValue Cmp = DAG.getSetCC(getCurSDLoc(),
+ TLI->getSetCCResultType(*DAG.getContext(),
+ Sub.getValueType()),
+ Sub, DAG.getConstant(0, VT),
+ ISD::SETNE);
+
+ // If the sub is not 0, then we know the guard/stackslot do not equal, so
+ // branch to failure MBB.
+ SDValue BrCond = DAG.getNode(ISD::BRCOND, getCurSDLoc(),
+ MVT::Other, StackSlot.getOperand(0),
+ Cmp, DAG.getBasicBlock(SPD.getFailureMBB()));
+ // Otherwise branch to success MBB.
+ SDValue Br = DAG.getNode(ISD::BR, getCurSDLoc(),
+ MVT::Other, BrCond,
+ DAG.getBasicBlock(SPD.getSuccessMBB()));
+
+ DAG.setRoot(Br);
+}
+
+/// Codegen the failure basic block for a stack protector check.
+///
+/// A failure stack protector machine basic block consists simply of a call to
+/// __stack_chk_fail().
+///
+/// For a high level explanation of how this fits into the stack protector
+/// generation see the comment on the declaration of class
+/// StackProtectorDescriptor.
+void
+SelectionDAGBuilder::visitSPDescriptorFailure(StackProtectorDescriptor &SPD) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+ SDValue Chain = TLI->makeLibCall(DAG, RTLIB::STACKPROTECTOR_CHECK_FAIL,
+ MVT::isVoid, 0, 0, false, getCurSDLoc(),
+ false, false).second;
+ DAG.setRoot(Chain);
+}
+
/// visitBitTestHeader - This function emits necessary code to produce value
/// suitable for "bit tests"
void SelectionDAGBuilder::visitBitTestHeader(BitTestBlock &B,
DAG.getConstant(B.First, VT));
// Check range
+ const TargetLowering *TLI = TM.getTargetLowering();
SDValue RangeCmp = DAG.getSetCC(getCurSDLoc(),
- TLI.getSetCCResultType(*DAG.getContext(),
+ TLI->getSetCCResultType(*DAG.getContext(),
Sub.getValueType()),
Sub, DAG.getConstant(B.Range, VT),
ISD::SETUGT);
// Determine the type of the test operands.
bool UsePtrType = false;
- if (!TLI.isTypeLegal(VT))
+ if (!TLI->isTypeLegal(VT))
UsePtrType = true;
else {
for (unsigned i = 0, e = B.Cases.size(); i != e; ++i)
}
}
if (UsePtrType) {
- VT = TLI.getPointerTy();
+ VT = TLI->getPointerTy();
Sub = DAG.getZExtOrTrunc(Sub, getCurSDLoc(), VT);
}
Reg, VT);
SDValue Cmp;
unsigned PopCount = CountPopulation_64(B.Mask);
+ const TargetLowering *TLI = TM.getTargetLowering();
if (PopCount == 1) {
// Testing for a single bit; just compare the shift count with what it
// would need to be to shift a 1 bit in that position.
Cmp = DAG.getSetCC(getCurSDLoc(),
- TLI.getSetCCResultType(*DAG.getContext(), VT),
+ TLI->getSetCCResultType(*DAG.getContext(), VT),
ShiftOp,
DAG.getConstant(countTrailingZeros(B.Mask), VT),
ISD::SETEQ);
} else if (PopCount == BB.Range) {
// There is only one zero bit in the range, test for it directly.
Cmp = DAG.getSetCC(getCurSDLoc(),
- TLI.getSetCCResultType(*DAG.getContext(), VT),
+ TLI->getSetCCResultType(*DAG.getContext(), VT),
ShiftOp,
DAG.getConstant(CountTrailingOnes_64(B.Mask), VT),
ISD::SETNE);
SDValue AndOp = DAG.getNode(ISD::AND, getCurSDLoc(),
VT, SwitchVal, DAG.getConstant(B.Mask, VT));
Cmp = DAG.getSetCC(getCurSDLoc(),
- TLI.getSetCCResultType(*DAG.getContext(), VT),
+ TLI->getSetCCResultType(*DAG.getContext(), VT),
AndOp, DAG.getConstant(0, VT),
ISD::SETNE);
}
// If there aren't registers to copy the values into (e.g., during SjLj
// exceptions), then don't bother to create these DAG nodes.
- if (TLI.getExceptionPointerRegister() == 0 &&
- TLI.getExceptionSelectorRegister() == 0)
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (TLI->getExceptionPointerRegister() == 0 &&
+ TLI->getExceptionSelectorRegister() == 0)
return;
SmallVector<EVT, 2> ValueVTs;
- ComputeValueVTs(TLI, LP.getType(), ValueVTs);
+ ComputeValueVTs(*TLI, LP.getType(), ValueVTs);
+ assert(ValueVTs.size() == 2 && "Only two-valued landingpads are supported");
- // Insert the EXCEPTIONADDR instruction.
- assert(FuncInfo.MBB->isLandingPad() &&
- "Call to eh.exception not in landing pad!");
- SDVTList VTs = DAG.getVTList(TLI.getPointerTy(), MVT::Other);
+ // Get the two live-in registers as SDValues. The physregs have already been
+ // copied into virtual registers.
SDValue Ops[2];
- Ops[0] = DAG.getRoot();
- SDValue Op1 = DAG.getNode(ISD::EXCEPTIONADDR, getCurSDLoc(), VTs, Ops, 1);
- SDValue Chain = Op1.getValue(1);
-
- // Insert the EHSELECTION instruction.
- VTs = DAG.getVTList(TLI.getPointerTy(), MVT::Other);
- Ops[0] = Op1;
- Ops[1] = Chain;
- SDValue Op2 = DAG.getNode(ISD::EHSELECTION, getCurSDLoc(), VTs, Ops, 2);
- Chain = Op2.getValue(1);
- Op2 = DAG.getSExtOrTrunc(Op2, getCurSDLoc(), MVT::i32);
-
- Ops[0] = Op1;
- Ops[1] = Op2;
+ Ops[0] = DAG.getZExtOrTrunc(
+ DAG.getCopyFromReg(DAG.getEntryNode(), getCurSDLoc(),
+ FuncInfo.ExceptionPointerVirtReg, TLI->getPointerTy()),
+ getCurSDLoc(), ValueVTs[0]);
+ Ops[1] = DAG.getZExtOrTrunc(
+ DAG.getCopyFromReg(DAG.getEntryNode(), getCurSDLoc(),
+ FuncInfo.ExceptionSelectorVirtReg, TLI->getPointerTy()),
+ getCurSDLoc(), ValueVTs[1]);
+
+ // Merge into one.
SDValue Res = DAG.getNode(ISD::MERGE_VALUES, getCurSDLoc(),
DAG.getVTList(&ValueVTs[0], ValueVTs.size()),
&Ops[0], 2);
-
- std::pair<SDValue, SDValue> RetPair = std::make_pair(Res, Chain);
- setValue(&LP, RetPair.first);
- DAG.setRoot(RetPair.second);
+ setValue(&LP, Res);
}
/// handleSmallSwitchCaseRange - Emit a series of specific tests (suitable for
// The last case block won't fall through into 'NextBlock' if we emit the
// branches in this order. See if rearranging a case value would help.
// We start at the bottom as it's the case with the least weight.
- for (Case *I = &*(CR.Range.second-2), *E = &*CR.Range.first-1; I != E; --I){
+ for (Case *I = &*(CR.Range.second-2), *E = &*CR.Range.first-1; I != E; --I)
if (I->BB == NextBlock) {
std::swap(*I, BackCase);
break;
}
- }
}
// Create a CaseBlock record representing a conditional branch to
CC = ISD::SETEQ;
LHS = SV; RHS = I->High; MHS = NULL;
} else {
- CC = ISD::SETCC_INVALID;
+ CC = ISD::SETLE;
LHS = I->Low; MHS = SV; RHS = I->High;
}
static APInt ComputeRange(const APInt &First, const APInt &Last) {
uint32_t BitWidth = std::max(Last.getBitWidth(), First.getBitWidth()) + 1;
- APInt LastExt = Last.zext(BitWidth), FirstExt = First.zext(BitWidth);
+ APInt LastExt = Last.sext(BitWidth), FirstExt = First.sext(BitWidth);
return (LastExt - FirstExt + 1ULL);
}
for (CaseItr I = CR.Range.first, E = CR.Range.second; I != E; ++I)
TSize += I->size();
- if (!areJTsAllowed(TLI) || TSize.ult(TLI.getMinimumJumpTableEntries()))
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (!areJTsAllowed(*TLI) || TSize.ult(TLI->getMinimumJumpTableEntries()))
return false;
APInt Range = ComputeRange(First, Last);
const APInt &Low = cast<ConstantInt>(I->Low)->getValue();
const APInt &High = cast<ConstantInt>(I->High)->getValue();
- if (Low.ule(TEI) && TEI.ule(High)) {
+ if (Low.sle(TEI) && TEI.sle(High)) {
DestBBs.push_back(I->BB);
if (TEI==High)
++I;
for (CaseItr I = CR.Range.first, E = CR.Range.second; I != E; ++I) {
DenseMap<MachineBasicBlock*, uint32_t>::iterator Itr =
DestWeights.find(I->BB);
- if (Itr != DestWeights.end())
+ if (Itr != DestWeights.end())
Itr->second += I->ExtraWeight;
else
DestWeights[I->BB] = I->ExtraWeight;
}
// Create a jump table index for this jump table.
- unsigned JTEncoding = TLI.getJumpTableEncoding();
+ unsigned JTEncoding = TLI->getJumpTableEncoding();
unsigned JTI = CurMF->getOrCreateJumpTableInfo(JTEncoding)
->createJumpTableIndex(DestBBs);
bool SelectionDAGBuilder::handleBTSplitSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
const Value* SV,
- MachineBasicBlock *Default,
- MachineBasicBlock *SwitchBB) {
+ MachineBasicBlock* Default,
+ MachineBasicBlock* SwitchBB) {
// Get the MachineFunction which holds the current MBB. This is used when
// inserting any additional MBBs necessary to represent the switch.
MachineFunction *CurMF = FuncInfo.MF;
LSize += J->size();
RSize -= J->size();
}
- if (areJTsAllowed(TLI)) {
+
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (areJTsAllowed(*TLI)) {
// If our case is dense we *really* should handle it earlier!
assert((FMetric > 0) && "Should handle dense range earlier!");
} else {
// Create a CaseBlock record representing a conditional branch to
// the LHS node if the value being switched on SV is less than C.
// Otherwise, branch to LHS.
- CaseBlock CB(ISD::SETULT, SV, C, NULL, TrueBB, FalseBB, CR.CaseBB);
+ CaseBlock CB(ISD::SETLT, SV, C, NULL, TrueBB, FalseBB, CR.CaseBB);
if (CR.CaseBB == SwitchBB)
visitSwitchCase(CB, SwitchBB);
CaseRecVector& WorkList,
const Value* SV,
MachineBasicBlock* Default,
- MachineBasicBlock *SwitchBB){
- EVT PTy = TLI.getPointerTy();
+ MachineBasicBlock* SwitchBB) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT PTy = TLI->getPointerTy();
unsigned IntPtrBits = PTy.getSizeInBits();
Case& FrontCase = *CR.Range.first;
MachineFunction *CurMF = FuncInfo.MF;
// If target does not have legal shift left, do not emit bit tests at all.
- if (!TLI.isOperationLegal(ISD::SHL, TLI.getPointerTy()))
+ if (!TLI->isOperationLegal(ISD::SHL, PTy))
return false;
size_t numCmps = 0;
// Optimize the case where all the case values fit in a
// word without having to subtract minValue. In this case,
// we can optimize away the subtraction.
- if (maxValue.ult(IntPtrBits)) {
+ if (minValue.isNonNegative() && maxValue.slt(IntPtrBits)) {
cmpRange = maxValue;
} else {
lowBound = minValue;
/// Clusterify - Transform simple list of Cases into list of CaseRange's
size_t SelectionDAGBuilder::Clusterify(CaseVector& Cases,
const SwitchInst& SI) {
-
- /// Use a shorter form of declaration, and also
- /// show the we want to use CRSBuilder as Clusterifier.
- typedef IntegersSubsetMapping<MachineBasicBlock> Clusterifier;
-
- Clusterifier TheClusterifier;
+ size_t numCmps = 0;
BranchProbabilityInfo *BPI = FuncInfo.BPI;
// Start with "simple" cases
const BasicBlock *SuccBB = i.getCaseSuccessor();
MachineBasicBlock *SMBB = FuncInfo.MBBMap[SuccBB];
- TheClusterifier.add(i.getCaseValueEx(), SMBB,
- BPI ? BPI->getEdgeWeight(SI.getParent(), i.getSuccessorIndex()) : 0);
- }
-
- TheClusterifier.optimize();
-
- size_t numCmps = 0;
- for (Clusterifier::RangeIterator i = TheClusterifier.begin(),
- e = TheClusterifier.end(); i != e; ++i, ++numCmps) {
- Clusterifier::Cluster &C = *i;
- // Update edge weight for the cluster.
- unsigned W = C.first.Weight;
-
- // FIXME: Currently work with ConstantInt based numbers.
- // Changing it to APInt based is a pretty heavy for this commit.
- Cases.push_back(Case(C.first.getLow().toConstantInt(),
- C.first.getHigh().toConstantInt(), C.second, W));
-
- if (C.first.getLow() != C.first.getHigh())
- // A range counts double, since it requires two compares.
- ++numCmps;
+ uint32_t ExtraWeight =
+ BPI ? BPI->getEdgeWeight(SI.getParent(), i.getSuccessorIndex()) : 0;
+
+ Cases.push_back(Case(i.getCaseValue(), i.getCaseValue(),
+ SMBB, ExtraWeight));
+ }
+ std::sort(Cases.begin(), Cases.end(), CaseCmp());
+
+ // Merge case into clusters
+ if (Cases.size() >= 2)
+ // Must recompute end() each iteration because it may be
+ // invalidated by erase if we hold on to it
+ for (CaseItr I = Cases.begin(), J = llvm::next(Cases.begin());
+ J != Cases.end(); ) {
+ const APInt& nextValue = cast<ConstantInt>(J->Low)->getValue();
+ const APInt& currentValue = cast<ConstantInt>(I->High)->getValue();
+ MachineBasicBlock* nextBB = J->BB;
+ MachineBasicBlock* currentBB = I->BB;
+
+ // If the two neighboring cases go to the same destination, merge them
+ // into a single case.
+ if ((nextValue - currentValue == 1) && (currentBB == nextBB)) {
+ I->High = J->High;
+ I->ExtraWeight += J->ExtraWeight;
+ J = Cases.erase(J);
+ } else {
+ I = J++;
+ }
+ }
+
+ for (CaseItr I=Cases.begin(), E=Cases.end(); I!=E; ++I, ++numCmps) {
+ if (I->Low != I->High)
+ // A range counts double, since it requires two compares.
+ ++numCmps;
}
return numCmps;
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
- EVT ShiftTy = TLI.getShiftAmountTy(Op2.getValueType());
+ EVT ShiftTy = TM.getTargetLowering()->getShiftAmountTy(Op2.getValueType());
// Coerce the shift amount to the right type if we can.
if (!I.getType()->isVectorTy() && Op2.getValueType() != ShiftTy) {
if (isa<BinaryOperator>(&I) && cast<BinaryOperator>(&I)->isExact() &&
!isa<ConstantSDNode>(Op1) &&
isa<ConstantSDNode>(Op2) && !cast<ConstantSDNode>(Op2)->isNullValue())
- setValue(&I, TLI.BuildExactSDIV(Op1, Op2, getCurSDLoc(), DAG));
+ setValue(&I, TM.getTargetLowering()->BuildExactSDIV(Op1, Op2,
+ getCurSDLoc(), DAG));
else
setValue(&I, DAG.getNode(ISD::SDIV, getCurSDLoc(), Op1.getValueType(),
Op1, Op2));
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Opcode = getICmpCondCode(predicate);
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getSetCC(getCurSDLoc(), DestVT, Op1, Op2, Opcode));
}
ISD::CondCode Condition = getFCmpCondCode(predicate);
if (TM.Options.NoNaNsFPMath)
Condition = getFCmpCodeWithoutNaN(Condition);
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getSetCC(getCurSDLoc(), DestVT, Op1, Op2, Condition));
}
void SelectionDAGBuilder::visitSelect(const User &I) {
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, I.getType(), ValueVTs);
+ ComputeValueVTs(*TM.getTargetLowering(), I.getType(), ValueVTs);
unsigned NumValues = ValueVTs.size();
if (NumValues == 0) return;
void SelectionDAGBuilder::visitTrunc(const User &I) {
// TruncInst cannot be a no-op cast because sizeof(src) > sizeof(dest).
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::TRUNCATE, getCurSDLoc(), DestVT, N));
}
// ZExt cannot be a no-op cast because sizeof(src) < sizeof(dest).
// ZExt also can't be a cast to bool for same reason. So, nothing much to do
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::ZERO_EXTEND, getCurSDLoc(), DestVT, N));
}
// SExt cannot be a no-op cast because sizeof(src) < sizeof(dest).
// SExt also can't be a cast to bool for same reason. So, nothing much to do
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::SIGN_EXTEND, getCurSDLoc(), DestVT, N));
}
void SelectionDAGBuilder::visitFPTrunc(const User &I) {
// FPTrunc is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT DestVT = TLI->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_ROUND, getCurSDLoc(),
DestVT, N,
- DAG.getTargetConstant(0, TLI.getPointerTy())));
+ DAG.getTargetConstant(0, TLI->getPointerTy())));
}
-void SelectionDAGBuilder::visitFPExt(const User &I){
+void SelectionDAGBuilder::visitFPExt(const User &I) {
// FPExt is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_EXTEND, getCurSDLoc(), DestVT, N));
}
void SelectionDAGBuilder::visitFPToUI(const User &I) {
// FPToUI is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_TO_UINT, getCurSDLoc(), DestVT, N));
}
void SelectionDAGBuilder::visitFPToSI(const User &I) {
// FPToSI is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::FP_TO_SINT, getCurSDLoc(), DestVT, N));
}
void SelectionDAGBuilder::visitUIToFP(const User &I) {
// UIToFP is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::UINT_TO_FP, getCurSDLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitSIToFP(const User &I){
+void SelectionDAGBuilder::visitSIToFP(const User &I) {
// SIToFP is never a no-op cast, no need to check
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getNode(ISD::SINT_TO_FP, getCurSDLoc(), DestVT, N));
}
// What to do depends on the size of the integer and the size of the pointer.
// We can either truncate, zero extend, or no-op, accordingly.
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getZExtOrTrunc(N, getCurSDLoc(), DestVT));
}
// What to do depends on the size of the integer and the size of the pointer.
// We can either truncate, zero extend, or no-op, accordingly.
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
setValue(&I, DAG.getZExtOrTrunc(N, getCurSDLoc(), DestVT));
}
void SelectionDAGBuilder::visitBitCast(const User &I) {
SDValue N = getValue(I.getOperand(0));
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TM.getTargetLowering()->getValueType(I.getType());
// BitCast assures us that source and destination are the same size so this is
// either a BITCAST or a no-op.
}
void SelectionDAGBuilder::visitInsertElement(const User &I) {
+ const TargetLowering &TLI = DAG.getTargetLoweringInfo();
SDValue InVec = getValue(I.getOperand(0));
SDValue InVal = getValue(I.getOperand(1));
- SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurSDLoc(),
- TLI.getPointerTy(),
- getValue(I.getOperand(2)));
+ SDValue InIdx = DAG.getSExtOrTrunc(getValue(I.getOperand(2)),
+ getCurSDLoc(), TLI.getVectorIdxTy());
setValue(&I, DAG.getNode(ISD::INSERT_VECTOR_ELT, getCurSDLoc(),
- TLI.getValueType(I.getType()),
+ TM.getTargetLowering()->getValueType(I.getType()),
InVec, InVal, InIdx));
}
void SelectionDAGBuilder::visitExtractElement(const User &I) {
+ const TargetLowering &TLI = DAG.getTargetLoweringInfo();
SDValue InVec = getValue(I.getOperand(0));
- SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurSDLoc(),
- TLI.getPointerTy(),
- getValue(I.getOperand(1)));
+ SDValue InIdx = DAG.getSExtOrTrunc(getValue(I.getOperand(1)),
+ getCurSDLoc(), TLI.getVectorIdxTy());
setValue(&I, DAG.getNode(ISD::EXTRACT_VECTOR_ELT, getCurSDLoc(),
- TLI.getValueType(I.getType()), InVec, InIdx));
+ TM.getTargetLowering()->getValueType(I.getType()),
+ InVec, InIdx));
}
// Utility for visitShuffleVector - Return true if every element in Mask,
SmallVector<int, 8> Mask;
ShuffleVectorInst::getShuffleMask(cast<Constant>(I.getOperand(2)), Mask);
unsigned MaskNumElts = Mask.size();
-
- EVT VT = TLI.getValueType(I.getType());
+
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT VT = TLI->getValueType(I.getType());
EVT SrcVT = Src1.getValueType();
unsigned SrcNumElts = SrcVT.getVectorNumElements();
Src = DAG.getUNDEF(VT);
else
Src = DAG.getNode(ISD::EXTRACT_SUBVECTOR, getCurSDLoc(), VT,
- Src, DAG.getIntPtrConstant(StartIdx[Input]));
+ Src, DAG.getConstant(StartIdx[Input],
+ TLI->getVectorIdxTy()));
}
// Calculate new mask.
// replacing the shuffle with extract and build vector.
// to insert and build vector.
EVT EltVT = VT.getVectorElementType();
- EVT PtrVT = TLI.getPointerTy();
+ EVT IdxVT = TLI->getVectorIdxTy();
SmallVector<SDValue,8> Ops;
for (unsigned i = 0; i != MaskNumElts; ++i) {
int Idx = Mask[i];
if (Idx >= (int)SrcNumElts) Idx -= SrcNumElts;
Res = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, getCurSDLoc(),
- EltVT, Src, DAG.getConstant(Idx, PtrVT));
+ EltVT, Src, DAG.getConstant(Idx, IdxVT));
}
Ops.push_back(Res);
unsigned LinearIndex = ComputeLinearIndex(AggTy, I.getIndices());
+ const TargetLowering *TLI = TM.getTargetLowering();
SmallVector<EVT, 4> AggValueVTs;
- ComputeValueVTs(TLI, AggTy, AggValueVTs);
+ ComputeValueVTs(*TLI, AggTy, AggValueVTs);
SmallVector<EVT, 4> ValValueVTs;
- ComputeValueVTs(TLI, ValTy, ValValueVTs);
+ ComputeValueVTs(*TLI, ValTy, ValValueVTs);
unsigned NumAggValues = AggValueVTs.size();
unsigned NumValValues = ValValueVTs.size();
unsigned LinearIndex = ComputeLinearIndex(AggTy, I.getIndices());
+ const TargetLowering *TLI = TM.getTargetLowering();
SmallVector<EVT, 4> ValValueVTs;
- ComputeValueVTs(TLI, ValTy, ValValueVTs);
+ ComputeValueVTs(*TLI, ValTy, ValValueVTs);
unsigned NumValValues = ValValueVTs.size();
}
void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
- SDValue N = getValue(I.getOperand(0));
+ Value *Op0 = I.getOperand(0);
// Note that the pointer operand may be a vector of pointers. Take the scalar
// element which holds a pointer.
- Type *Ty = I.getOperand(0)->getType()->getScalarType();
+ Type *Ty = Op0->getType()->getScalarType();
+ unsigned AS = Ty->getPointerAddressSpace();
+ SDValue N = getValue(Op0);
for (GetElementPtrInst::const_op_iterator OI = I.op_begin()+1, E = I.op_end();
OI != E; ++OI) {
Ty = cast<SequentialType>(Ty)->getElementType();
// If this is a constant subscript, handle it quickly.
+ const TargetLowering *TLI = TM.getTargetLowering();
if (const ConstantInt *CI = dyn_cast<ConstantInt>(Idx)) {
if (CI->isZero()) continue;
uint64_t Offs =
TD->getTypeAllocSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
SDValue OffsVal;
- EVT PTy = TLI.getPointerTy();
+ EVT PTy = TLI->getPointerTy(AS);
unsigned PtrBits = PTy.getSizeInBits();
if (PtrBits < 64)
- OffsVal = DAG.getNode(ISD::TRUNCATE, getCurSDLoc(),
- TLI.getPointerTy(),
+ OffsVal = DAG.getNode(ISD::TRUNCATE, getCurSDLoc(), PTy,
DAG.getConstant(Offs, MVT::i64));
else
- OffsVal = DAG.getIntPtrConstant(Offs);
+ OffsVal = DAG.getConstant(Offs, PTy);
N = DAG.getNode(ISD::ADD, getCurSDLoc(), N.getValueType(), N,
OffsVal);
}
// N = N + Idx * ElementSize;
- APInt ElementSize = APInt(TLI.getPointerTy().getSizeInBits(),
+ APInt ElementSize = APInt(TLI->getPointerSizeInBits(AS),
TD->getTypeAllocSize(Ty));
SDValue IdxN = getValue(Idx);
return; // getValue will auto-populate this.
Type *Ty = I.getAllocatedType();
- uint64_t TySize = TLI.getDataLayout()->getTypeAllocSize(Ty);
+ const TargetLowering *TLI = TM.getTargetLowering();
+ uint64_t TySize = TLI->getDataLayout()->getTypeAllocSize(Ty);
unsigned Align =
- std::max((unsigned)TLI.getDataLayout()->getPrefTypeAlignment(Ty),
+ std::max((unsigned)TLI->getDataLayout()->getPrefTypeAlignment(Ty),
I.getAlignment());
SDValue AllocSize = getValue(I.getArraySize());
- EVT IntPtr = TLI.getPointerTy();
+ EVT IntPtr = TLI->getPointerTy();
if (AllocSize.getValueType() != IntPtr)
AllocSize = DAG.getZExtOrTrunc(AllocSize, getCurSDLoc(), IntPtr);
SmallVector<EVT, 4> ValueVTs;
SmallVector<uint64_t, 4> Offsets;
- ComputeValueVTs(TLI, Ty, ValueVTs, &Offsets);
+ ComputeValueVTs(*TM.getTargetLowering(), Ty, ValueVTs, &Offsets);
unsigned NumValues = ValueVTs.size();
if (NumValues == 0)
return;
SmallVector<EVT, 4> ValueVTs;
SmallVector<uint64_t, 4> Offsets;
- ComputeValueVTs(TLI, SrcV->getType(), ValueVTs, &Offsets);
+ ComputeValueVTs(*TM.getTargetLowering(), SrcV->getType(), ValueVTs, &Offsets);
unsigned NumValues = ValueVTs.size();
if (NumValues == 0)
return;
SDValue InChain = getRoot();
- if (TLI.getInsertFencesForAtomic())
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (TLI->getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
- DAG, TLI);
+ DAG, *TLI);
SDValue L =
DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl,
- getValue(I.getCompareOperand()).getValueType().getSimpleVT(),
+ getValue(I.getCompareOperand()).getSimpleValueType(),
InChain,
getValue(I.getPointerOperand()),
getValue(I.getCompareOperand()),
getValue(I.getNewValOperand()),
MachinePointerInfo(I.getPointerOperand()), 0 /* Alignment */,
- TLI.getInsertFencesForAtomic() ? Monotonic : Order,
+ TLI->getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
SDValue OutChain = L.getValue(1);
- if (TLI.getInsertFencesForAtomic())
+ if (TLI->getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
- DAG, TLI);
+ DAG, *TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
SDValue InChain = getRoot();
- if (TLI.getInsertFencesForAtomic())
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (TLI->getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
- DAG, TLI);
+ DAG, *TLI);
SDValue L =
DAG.getAtomic(NT, dl,
- getValue(I.getValOperand()).getValueType().getSimpleVT(),
+ getValue(I.getValOperand()).getSimpleValueType(),
InChain,
getValue(I.getPointerOperand()),
getValue(I.getValOperand()),
I.getPointerOperand(), 0 /* Alignment */,
- TLI.getInsertFencesForAtomic() ? Monotonic : Order,
+ TLI->getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
SDValue OutChain = L.getValue(1);
- if (TLI.getInsertFencesForAtomic())
+ if (TLI->getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
- DAG, TLI);
+ DAG, *TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
void SelectionDAGBuilder::visitFence(const FenceInst &I) {
SDLoc dl = getCurSDLoc();
+ const TargetLowering *TLI = TM.getTargetLowering();
SDValue Ops[3];
Ops[0] = getRoot();
- Ops[1] = DAG.getConstant(I.getOrdering(), TLI.getPointerTy());
- Ops[2] = DAG.getConstant(I.getSynchScope(), TLI.getPointerTy());
+ Ops[1] = DAG.getConstant(I.getOrdering(), TLI->getPointerTy());
+ Ops[2] = DAG.getConstant(I.getSynchScope(), TLI->getPointerTy());
DAG.setRoot(DAG.getNode(ISD::ATOMIC_FENCE, dl, MVT::Other, Ops, 3));
}
SDValue InChain = getRoot();
- EVT VT = TLI.getValueType(I.getType());
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT VT = TLI->getValueType(I.getType());
if (I.getAlignment() < VT.getSizeInBits() / 8)
report_fatal_error("Cannot generate unaligned atomic load");
DAG.getAtomic(ISD::ATOMIC_LOAD, dl, VT, VT, InChain,
getValue(I.getPointerOperand()),
I.getPointerOperand(), I.getAlignment(),
- TLI.getInsertFencesForAtomic() ? Monotonic : Order,
+ TLI->getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
SDValue OutChain = L.getValue(1);
- if (TLI.getInsertFencesForAtomic())
+ if (TLI->getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
- DAG, TLI);
+ DAG, *TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
SDValue InChain = getRoot();
- EVT VT = TLI.getValueType(I.getValueOperand()->getType());
+ const TargetLowering *TLI = TM.getTargetLowering();
+ EVT VT = TLI->getValueType(I.getValueOperand()->getType());
if (I.getAlignment() < VT.getSizeInBits() / 8)
report_fatal_error("Cannot generate unaligned atomic store");
- if (TLI.getInsertFencesForAtomic())
+ if (TLI->getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
- DAG, TLI);
+ DAG, *TLI);
SDValue OutChain =
DAG.getAtomic(ISD::ATOMIC_STORE, dl, VT,
getValue(I.getPointerOperand()),
getValue(I.getValueOperand()),
I.getPointerOperand(), I.getAlignment(),
- TLI.getInsertFencesForAtomic() ? Monotonic : Order,
+ TLI->getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
- if (TLI.getInsertFencesForAtomic())
+ if (TLI->getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
- DAG, TLI);
+ DAG, *TLI);
DAG.setRoot(OutChain);
}
// Info is set by getTgtMemInstrinsic
TargetLowering::IntrinsicInfo Info;
- bool IsTgtIntrinsic = TLI.getTgtMemIntrinsic(Info, I, Intrinsic);
+ const TargetLowering *TLI = TM.getTargetLowering();
+ bool IsTgtIntrinsic = TLI->getTgtMemIntrinsic(Info, I, Intrinsic);
// Add the intrinsic ID as an integer operand if it's not a target intrinsic.
if (!IsTgtIntrinsic || Info.opc == ISD::INTRINSIC_VOID ||
Info.opc == ISD::INTRINSIC_W_CHAIN)
- Ops.push_back(DAG.getTargetConstant(Intrinsic, TLI.getPointerTy()));
+ Ops.push_back(DAG.getTargetConstant(Intrinsic, TLI->getPointerTy()));
// Add all operands of the call to the operand list.
for (unsigned i = 0, e = I.getNumArgOperands(); i != e; ++i) {
}
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, I.getType(), ValueVTs);
+ ComputeValueVTs(*TLI, I.getType(), ValueVTs);
if (HasChain)
ValueVTs.push_back(MVT::Other);
if (!I.getType()->isVoidTy()) {
if (VectorType *PTy = dyn_cast<VectorType>(I.getType())) {
- EVT VT = TLI.getValueType(PTy);
+ EVT VT = TLI->getValueType(PTy);
Result = DAG.getNode(ISD::BITCAST, getCurSDLoc(), VT, Result);
}
return 0;
const SDValue &Ext = N.getOperand(0);
- if (Ext.getOpcode() == ISD::AssertZext || Ext.getOpcode() == ISD::AssertSext){
+ if (Ext.getOpcode() == ISD::AssertZext ||
+ Ext.getOpcode() == ISD::AssertSext) {
const SDValue &CFR = Ext.getOperand(0);
if (CFR.getOpcode() == ISD::CopyFromReg)
return cast<RegisterSDNode>(CFR.getOperand(1))->getReg();
if (!Op)
return false;
+ // FIXME: This does not handle register-indirect values at offset 0.
+ bool IsIndirect = Offset != 0;
if (Op->isReg())
- Op->setIsDebug();
-
- FuncInfo.ArgDbgValues.push_back(
+ FuncInfo.ArgDbgValues.push_back(BuildMI(MF, getCurDebugLoc(),
+ TII->get(TargetOpcode::DBG_VALUE),
+ IsIndirect,
+ Op->getReg(), Offset, Variable));
+ else
+ FuncInfo.ArgDbgValues.push_back(
BuildMI(MF, getCurDebugLoc(), TII->get(TargetOpcode::DBG_VALUE))
.addOperand(*Op).addImm(Offset).addMetadata(Variable));
+
return true;
}
/// otherwise lower it and return null.
const char *
SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
+ const TargetLowering *TLI = TM.getTargetLowering();
SDLoc sdl = getCurSDLoc();
DebugLoc dl = getCurDebugLoc();
SDValue Res;
case Intrinsic::vaend: visitVAEnd(I); return 0;
case Intrinsic::vacopy: visitVACopy(I); return 0;
case Intrinsic::returnaddress:
- setValue(&I, DAG.getNode(ISD::RETURNADDR, sdl, TLI.getPointerTy(),
+ setValue(&I, DAG.getNode(ISD::RETURNADDR, sdl, TLI->getPointerTy(),
getValue(I.getArgOperand(0))));
return 0;
case Intrinsic::frameaddress:
- setValue(&I, DAG.getNode(ISD::FRAMEADDR, sdl, TLI.getPointerTy(),
+ setValue(&I, DAG.getNode(ISD::FRAMEADDR, sdl, TLI->getPointerTy(),
getValue(I.getArgOperand(0))));
return 0;
case Intrinsic::setjmp:
- return &"_setjmp"[!TLI.usesUnderscoreSetJmp()];
+ return &"_setjmp"[!TLI->usesUnderscoreSetJmp()];
case Intrinsic::longjmp:
- return &"_longjmp"[!TLI.usesUnderscoreLongJmp()];
+ return &"_longjmp"[!TLI->usesUnderscoreLongJmp()];
case Intrinsic::memcpy: {
// Assert for address < 256 since we support only user defined address
// spaces.
const DbgDeclareInst &DI = cast<DbgDeclareInst>(I);
MDNode *Variable = DI.getVariable();
const Value *Address = DI.getAddress();
- if (!Address || !DIVariable(Variable).Verify()) {
+ DIVariable DIVar(Variable);
+ assert((!DIVar || DIVar.isVariable()) &&
+ "Variable in DbgDeclareInst should be either null or a DIVariable.");
+ if (!Address || !DIVar) {
DEBUG(dbgs() << "Dropping debug info for " << DI << "\n");
return 0;
}
}
case Intrinsic::dbg_value: {
const DbgValueInst &DI = cast<DbgValueInst>(I);
- if (!DIVariable(DI.getVariable()).Verify())
+ DIVariable DIVar(DI.getVariable());
+ assert((!DIVar || DIVar.isVariable()) &&
+ "Variable in DbgValueInst should be either null or a DIVariable.");
+ if (!DIVar)
return 0;
MDNode *Variable = DI.getVariable();
return 0;
case Intrinsic::eh_dwarf_cfa: {
SDValue CfaArg = DAG.getSExtOrTrunc(getValue(I.getArgOperand(0)), sdl,
- TLI.getPointerTy());
+ TLI->getPointerTy());
SDValue Offset = DAG.getNode(ISD::ADD, sdl,
- TLI.getPointerTy(),
+ CfaArg.getValueType(),
DAG.getNode(ISD::FRAME_TO_ARGS_OFFSET, sdl,
- TLI.getPointerTy()),
+ CfaArg.getValueType()),
CfaArg);
SDValue FA = DAG.getNode(ISD::FRAMEADDR, sdl,
- TLI.getPointerTy(),
- DAG.getConstant(0, TLI.getPointerTy()));
- setValue(&I, DAG.getNode(ISD::ADD, sdl, TLI.getPointerTy(),
+ TLI->getPointerTy(),
+ DAG.getConstant(0, TLI->getPointerTy()));
+ setValue(&I, DAG.getNode(ISD::ADD, sdl, FA.getValueType(),
FA, Offset));
return 0;
}
ShOps[0] = ShAmt;
ShOps[1] = DAG.getConstant(0, MVT::i32);
ShAmt = DAG.getNode(ISD::BUILD_VECTOR, sdl, ShAmtVT, &ShOps[0], 2);
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TLI->getValueType(I.getType());
ShAmt = DAG.getNode(ISD::BITCAST, sdl, DestVT, ShAmt);
Res = DAG.getNode(ISD::INTRINSIC_WO_CHAIN, sdl, DestVT,
DAG.getConstant(NewIntrinsic, MVT::i32),
case Intrinsic::x86_avx_vinsertf128_ps_256:
case Intrinsic::x86_avx_vinsertf128_si_256:
case Intrinsic::x86_avx2_vinserti128: {
- EVT DestVT = TLI.getValueType(I.getType());
- EVT ElVT = TLI.getValueType(I.getArgOperand(1)->getType());
+ EVT DestVT = TLI->getValueType(I.getType());
+ EVT ElVT = TLI->getValueType(I.getArgOperand(1)->getType());
uint64_t Idx = (cast<ConstantInt>(I.getArgOperand(2))->getZExtValue() & 1) *
ElVT.getVectorNumElements();
Res = DAG.getNode(ISD::INSERT_SUBVECTOR, sdl, DestVT,
getValue(I.getArgOperand(0)),
getValue(I.getArgOperand(1)),
- DAG.getIntPtrConstant(Idx));
+ DAG.getConstant(Idx, TLI->getVectorIdxTy()));
setValue(&I, Res);
return 0;
}
case Intrinsic::x86_avx_vextractf128_ps_256:
case Intrinsic::x86_avx_vextractf128_si_256:
case Intrinsic::x86_avx2_vextracti128: {
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TLI->getValueType(I.getType());
uint64_t Idx = (cast<ConstantInt>(I.getArgOperand(1))->getZExtValue() & 1) *
DestVT.getVectorNumElements();
Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, sdl, DestVT,
getValue(I.getArgOperand(0)),
- DAG.getIntPtrConstant(Idx));
+ DAG.getConstant(Idx, TLI->getVectorIdxTy()));
setValue(&I, Res);
return 0;
}
case Intrinsic::convertus: Code = ISD::CVT_US; break;
case Intrinsic::convertuu: Code = ISD::CVT_UU; break;
}
- EVT DestVT = TLI.getValueType(I.getType());
+ EVT DestVT = TLI->getValueType(I.getType());
const Value *Op1 = I.getArgOperand(0);
Res = DAG.getConvertRndSat(DestVT, sdl, getValue(Op1),
DAG.getValueType(DestVT),
getValue(I.getArgOperand(1)), DAG));
return 0;
case Intrinsic::log:
- setValue(&I, expandLog(sdl, getValue(I.getArgOperand(0)), DAG, TLI));
+ setValue(&I, expandLog(sdl, getValue(I.getArgOperand(0)), DAG, *TLI));
return 0;
case Intrinsic::log2:
- setValue(&I, expandLog2(sdl, getValue(I.getArgOperand(0)), DAG, TLI));
+ setValue(&I, expandLog2(sdl, getValue(I.getArgOperand(0)), DAG, *TLI));
return 0;
case Intrinsic::log10:
- setValue(&I, expandLog10(sdl, getValue(I.getArgOperand(0)), DAG, TLI));
+ setValue(&I, expandLog10(sdl, getValue(I.getArgOperand(0)), DAG, *TLI));
return 0;
case Intrinsic::exp:
- setValue(&I, expandExp(sdl, getValue(I.getArgOperand(0)), DAG, TLI));
+ setValue(&I, expandExp(sdl, getValue(I.getArgOperand(0)), DAG, *TLI));
return 0;
case Intrinsic::exp2:
- setValue(&I, expandExp2(sdl, getValue(I.getArgOperand(0)), DAG, TLI));
+ setValue(&I, expandExp2(sdl, getValue(I.getArgOperand(0)), DAG, *TLI));
return 0;
case Intrinsic::pow:
setValue(&I, expandPow(sdl, getValue(I.getArgOperand(0)),
- getValue(I.getArgOperand(1)), DAG, TLI));
+ getValue(I.getArgOperand(1)), DAG, *TLI));
return 0;
case Intrinsic::sqrt:
case Intrinsic::fabs:
case Intrinsic::ceil:
case Intrinsic::trunc:
case Intrinsic::rint:
- case Intrinsic::nearbyint: {
+ case Intrinsic::nearbyint:
+ case Intrinsic::round: {
unsigned Opcode;
switch (Intrinsic) {
default: llvm_unreachable("Impossible intrinsic"); // Can't reach here.
case Intrinsic::trunc: Opcode = ISD::FTRUNC; break;
case Intrinsic::rint: Opcode = ISD::FRINT; break;
case Intrinsic::nearbyint: Opcode = ISD::FNEARBYINT; break;
+ case Intrinsic::round: Opcode = ISD::FROUND; break;
}
setValue(&I, DAG.getNode(Opcode, sdl,
getValue(I.getArgOperand(0))));
return 0;
}
+ case Intrinsic::copysign:
+ setValue(&I, DAG.getNode(ISD::FCOPYSIGN, sdl,
+ getValue(I.getArgOperand(0)).getValueType(),
+ getValue(I.getArgOperand(0)),
+ getValue(I.getArgOperand(1))));
+ return 0;
case Intrinsic::fma:
setValue(&I, DAG.getNode(ISD::FMA, sdl,
getValue(I.getArgOperand(0)).getValueType(),
getValue(I.getArgOperand(2))));
return 0;
case Intrinsic::fmuladd: {
- EVT VT = TLI.getValueType(I.getType());
+ EVT VT = TLI->getValueType(I.getType());
if (TM.Options.AllowFPOpFusion != FPOpFusion::Strict &&
- TLI.isFMAFasterThanMulAndAdd(VT)){
+ TLI->isFMAFasterThanFMulAndFAdd(VT)) {
setValue(&I, DAG.getNode(ISD::FMA, sdl,
getValue(I.getArgOperand(0)).getValueType(),
getValue(I.getArgOperand(0)),
case Intrinsic::stacksave: {
SDValue Op = getRoot();
Res = DAG.getNode(ISD::STACKSAVE, sdl,
- DAG.getVTList(TLI.getPointerTy(), MVT::Other), &Op, 1);
+ DAG.getVTList(TLI->getPointerTy(), MVT::Other), &Op, 1);
setValue(&I, Res);
DAG.setRoot(Res.getValue(1));
return 0;
// Emit code into the DAG to store the stack guard onto the stack.
MachineFunction &MF = DAG.getMachineFunction();
MachineFrameInfo *MFI = MF.getFrameInfo();
- EVT PtrTy = TLI.getPointerTy();
+ EVT PtrTy = TLI->getPointerTy();
SDValue Src = getValue(I.getArgOperand(0)); // The guard's value.
AllocaInst *Slot = cast<AllocaInst>(I.getArgOperand(1));
}
case Intrinsic::adjust_trampoline: {
setValue(&I, DAG.getNode(ISD::ADJUST_TRAMPOLINE, sdl,
- TLI.getPointerTy(),
+ TLI->getPointerTy(),
getValue(I.getArgOperand(0))));
return 0;
}
case Intrinsic::trap: {
StringRef TrapFuncName = TM.Options.getTrapFunctionName();
if (TrapFuncName.empty()) {
- ISD::NodeType Op = (Intrinsic == Intrinsic::trap) ?
+ ISD::NodeType Op = (Intrinsic == Intrinsic::trap) ?
ISD::TRAP : ISD::DEBUGTRAP;
DAG.setRoot(DAG.getNode(Op, sdl,MVT::Other, getRoot()));
return 0;
false, false, false, false, 0, CallingConv::C,
/*isTailCall=*/false,
/*doesNotRet=*/false, /*isReturnValueUsed=*/true,
- DAG.getExternalSymbol(TrapFuncName.data(), TLI.getPointerTy()),
+ DAG.getExternalSymbol(TrapFuncName.data(),
+ TLI->getPointerTy()),
Args, DAG, sdl);
- std::pair<SDValue, SDValue> Result = TLI.LowerCallTo(CLI);
+ std::pair<SDValue, SDValue> Result = TLI->LowerCallTo(CLI);
DAG.setRoot(Result.second);
return 0;
}
SmallVector<Value *, 4> Allocas;
GetUnderlyingObjects(I.getArgOperand(1), Allocas, TD);
- for (SmallVector<Value*, 4>::iterator Object = Allocas.begin(),
- E = Allocas.end(); Object != E; ++Object) {
+ for (SmallVectorImpl<Value*>::iterator Object = Allocas.begin(),
+ E = Allocas.end(); Object != E; ++Object) {
AllocaInst *LifetimeObject = dyn_cast_or_null<AllocaInst>(*Object);
// Could not find an Alloca.
SDValue Ops[2];
Ops[0] = getRoot();
- Ops[1] = DAG.getFrameIndex(FI, TLI.getPointerTy(), true);
+ Ops[1] = DAG.getFrameIndex(FI, TLI->getPointerTy(), true);
unsigned Opcode = (IsStart ? ISD::LIFETIME_START : ISD::LIFETIME_END);
Res = DAG.getNode(Opcode, sdl, MVT::Other, Ops, 2);
}
case Intrinsic::invariant_start:
// Discard region information.
- setValue(&I, DAG.getUNDEF(TLI.getPointerTy()));
+ setValue(&I, DAG.getUNDEF(TLI->getPointerTy()));
return 0;
case Intrinsic::invariant_end:
// Discard region information.
return 0;
+ case Intrinsic::stackprotectorcheck: {
+ // Do not actually emit anything for this basic block. Instead we initialize
+ // the stack protector descriptor and export the guard variable so we can
+ // access it in FinishBasicBlock.
+ const BasicBlock *BB = I.getParent();
+ SPDescriptor.initialize(BB, FuncInfo.MBBMap[BB], I);
+ ExportFromCurrentBlock(SPDescriptor.getGuard());
+
+ // Flush our exports since we are going to process a terminator.
+ (void)getControlRoot();
+ return 0;
+ }
case Intrinsic::donothing:
// ignore
return 0;
// Check whether the function can return without sret-demotion.
SmallVector<ISD::OutputArg, 4> Outs;
- GetReturnInfo(RetTy, CS.getAttributes(), Outs, TLI);
+ const TargetLowering *TLI = TM.getTargetLowering();
+ GetReturnInfo(RetTy, CS.getAttributes(), Outs, *TLI);
- bool CanLowerReturn = TLI.CanLowerReturn(CS.getCallingConv(),
- DAG.getMachineFunction(),
- FTy->isVarArg(), Outs,
- FTy->getContext());
+ bool CanLowerReturn = TLI->CanLowerReturn(CS.getCallingConv(),
+ DAG.getMachineFunction(),
+ FTy->isVarArg(), Outs,
+ FTy->getContext());
SDValue DemoteStackSlot;
int DemoteStackIdx = -100;
if (!CanLowerReturn) {
- uint64_t TySize = TLI.getDataLayout()->getTypeAllocSize(
+ uint64_t TySize = TLI->getDataLayout()->getTypeAllocSize(
FTy->getReturnType());
- unsigned Align = TLI.getDataLayout()->getPrefTypeAlignment(
+ unsigned Align = TLI->getDataLayout()->getPrefTypeAlignment(
FTy->getReturnType());
MachineFunction &MF = DAG.getMachineFunction();
DemoteStackIdx = MF.getFrameInfo()->CreateStackObject(TySize, Align, false);
Type *StackSlotPtrType = PointerType::getUnqual(FTy->getReturnType());
- DemoteStackSlot = DAG.getFrameIndex(DemoteStackIdx, TLI.getPointerTy());
+ DemoteStackSlot = DAG.getFrameIndex(DemoteStackIdx, TLI->getPointerTy());
Entry.Node = DemoteStackSlot;
Entry.Ty = StackSlotPtrType;
Entry.isSExt = false;
}
// Check if target-independent constraints permit a tail call here.
- // Target-dependent constraints are checked within TLI.LowerCallTo.
- if (isTailCall && !isInTailCallPosition(CS, TLI))
+ // Target-dependent constraints are checked within TLI->LowerCallTo.
+ if (isTailCall && !isInTailCallPosition(CS, *TLI))
isTailCall = false;
TargetLowering::
CallLoweringInfo CLI(getRoot(), RetTy, FTy, isTailCall, Callee, Args, DAG,
getCurSDLoc(), CS);
- std::pair<SDValue,SDValue> Result = TLI.LowerCallTo(CLI);
+ std::pair<SDValue,SDValue> Result = TLI->LowerCallTo(CLI);
assert((isTailCall || Result.second.getNode()) &&
"Non-null chain expected with non-tail call!");
assert((Result.second.getNode() || !Result.first.getNode()) &&
SmallVector<EVT, 1> PVTs;
Type *PtrRetTy = PointerType::getUnqual(FTy->getReturnType());
- ComputeValueVTs(TLI, PtrRetTy, PVTs);
+ ComputeValueVTs(*TLI, PtrRetTy, PVTs);
assert(PVTs.size() == 1 && "Pointers should fit in one register");
EVT PtrVT = PVTs[0];
SmallVector<EVT, 4> RetTys;
SmallVector<uint64_t, 4> Offsets;
RetTy = FTy->getReturnType();
- ComputeValueVTs(TLI, RetTy, RetTys, &Offsets);
+ ComputeValueVTs(*TLI, RetTy, RetTys, &Offsets);
unsigned NumValues = RetTys.size();
SmallVector<SDValue, 4> Values(NumValues);
// As a special case, a null chain means that a tail call has been emitted and
// the DAG root is already updated.
HasTailCall = true;
+
+ // Since there's no actual continuation from this block, nothing can be
+ // relying on us setting vregs for them.
+ PendingExports.clear();
} else {
DAG.setRoot(Result.second);
}
SDValue LoadVal = Builder.DAG.getLoad(LoadVT, Builder.getCurSDLoc(), Root,
Ptr, MachinePointerInfo(PtrVal),
false /*volatile*/,
- false /*nontemporal*/,
+ false /*nontemporal*/,
false /*isinvariant*/, 1 /* align=1 */);
if (!ConstantMemory)
return LoadVal;
}
+/// processIntegerCallValue - Record the value for an instruction that
+/// produces an integer result, converting the type where necessary.
+void SelectionDAGBuilder::processIntegerCallValue(const Instruction &I,
+ SDValue Value,
+ bool IsSigned) {
+ EVT VT = TM.getTargetLowering()->getValueType(I.getType(), true);
+ if (IsSigned)
+ Value = DAG.getSExtOrTrunc(Value, getCurSDLoc(), VT);
+ else
+ Value = DAG.getZExtOrTrunc(Value, getCurSDLoc(), VT);
+ setValue(&I, Value);
+}
/// visitMemCmpCall - See if we can lower a call to memcmp in an optimized form.
/// If so, return true and lower it, otherwise return false and it will be
!I.getType()->isIntegerTy())
return false;
- const ConstantInt *Size = dyn_cast<ConstantInt>(I.getArgOperand(2));
+ const Value *Size = I.getArgOperand(2);
+ const ConstantInt *CSize = dyn_cast<ConstantInt>(Size);
+ if (CSize && CSize->getZExtValue() == 0) {
+ EVT CallVT = TM.getTargetLowering()->getValueType(I.getType(), true);
+ setValue(&I, DAG.getConstant(0, CallVT));
+ return true;
+ }
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForMemcmp(DAG, getCurSDLoc(), DAG.getRoot(),
+ getValue(LHS), getValue(RHS), getValue(Size),
+ MachinePointerInfo(LHS),
+ MachinePointerInfo(RHS));
+ if (Res.first.getNode()) {
+ processIntegerCallValue(I, Res.first, true);
+ PendingLoads.push_back(Res.second);
+ return true;
+ }
// memcmp(S1,S2,2) != 0 -> (*(short*)LHS != *(short*)RHS) != 0
// memcmp(S1,S2,4) != 0 -> (*(int*)LHS != *(int*)RHS) != 0
- if (Size && IsOnlyUsedInZeroEqualityComparison(&I)) {
+ if (CSize && IsOnlyUsedInZeroEqualityComparison(&I)) {
bool ActuallyDoIt = true;
MVT LoadVT;
Type *LoadTy;
- switch (Size->getZExtValue()) {
+ switch (CSize->getZExtValue()) {
default:
LoadVT = MVT::Other;
LoadTy = 0;
break;
case 2:
LoadVT = MVT::i16;
- LoadTy = Type::getInt16Ty(Size->getContext());
+ LoadTy = Type::getInt16Ty(CSize->getContext());
break;
case 4:
LoadVT = MVT::i32;
- LoadTy = Type::getInt32Ty(Size->getContext());
+ LoadTy = Type::getInt32Ty(CSize->getContext());
break;
case 8:
LoadVT = MVT::i64;
- LoadTy = Type::getInt64Ty(Size->getContext());
+ LoadTy = Type::getInt64Ty(CSize->getContext());
break;
/*
case 16:
LoadVT = MVT::v4i32;
- LoadTy = Type::getInt32Ty(Size->getContext());
+ LoadTy = Type::getInt32Ty(CSize->getContext());
LoadTy = VectorType::get(LoadTy, 4);
break;
*/
// Require that we can find a legal MVT, and only do this if the target
// supports unaligned loads of that type. Expanding into byte loads would
// bloat the code.
- if (ActuallyDoIt && Size->getZExtValue() > 4) {
+ const TargetLowering *TLI = TM.getTargetLowering();
+ if (ActuallyDoIt && CSize->getZExtValue() > 4) {
// TODO: Handle 5 byte compare as 4-byte + 1 byte.
// TODO: Handle 8 byte compare on x86-32 as two 32-bit loads.
- if (!TLI.isTypeLegal(LoadVT) ||!TLI.allowsUnalignedMemoryAccesses(LoadVT))
+ if (!TLI->isTypeLegal(LoadVT) ||!TLI->allowsUnalignedMemoryAccesses(LoadVT))
ActuallyDoIt = false;
}
SDValue Res = DAG.getSetCC(getCurSDLoc(), MVT::i1, LHSVal, RHSVal,
ISD::SETNE);
- EVT CallVT = TLI.getValueType(I.getType(), true);
- setValue(&I, DAG.getZExtOrTrunc(Res, getCurSDLoc(), CallVT));
+ processIntegerCallValue(I, Res, false);
return true;
}
}
return false;
}
+/// visitMemChrCall -- See if we can lower a memchr call into an optimized
+/// form. If so, return true and lower it, otherwise return false and it
+/// will be lowered like a normal call.
+bool SelectionDAGBuilder::visitMemChrCall(const CallInst &I) {
+ // Verify that the prototype makes sense. void *memchr(void *, int, size_t)
+ if (I.getNumArgOperands() != 3)
+ return false;
+
+ const Value *Src = I.getArgOperand(0);
+ const Value *Char = I.getArgOperand(1);
+ const Value *Length = I.getArgOperand(2);
+ if (!Src->getType()->isPointerTy() ||
+ !Char->getType()->isIntegerTy() ||
+ !Length->getType()->isIntegerTy() ||
+ !I.getType()->isPointerTy())
+ return false;
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForMemchr(DAG, getCurSDLoc(), DAG.getRoot(),
+ getValue(Src), getValue(Char), getValue(Length),
+ MachinePointerInfo(Src));
+ if (Res.first.getNode()) {
+ setValue(&I, Res.first);
+ PendingLoads.push_back(Res.second);
+ return true;
+ }
+
+ return false;
+}
+
+/// visitStrCpyCall -- See if we can lower a strcpy or stpcpy call into an
+/// optimized form. If so, return true and lower it, otherwise return false
+/// and it will be lowered like a normal call.
+bool SelectionDAGBuilder::visitStrCpyCall(const CallInst &I, bool isStpcpy) {
+ // Verify that the prototype makes sense. char *strcpy(char *, char *)
+ if (I.getNumArgOperands() != 2)
+ return false;
+
+ const Value *Arg0 = I.getArgOperand(0), *Arg1 = I.getArgOperand(1);
+ if (!Arg0->getType()->isPointerTy() ||
+ !Arg1->getType()->isPointerTy() ||
+ !I.getType()->isPointerTy())
+ return false;
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForStrcpy(DAG, getCurSDLoc(), getRoot(),
+ getValue(Arg0), getValue(Arg1),
+ MachinePointerInfo(Arg0),
+ MachinePointerInfo(Arg1), isStpcpy);
+ if (Res.first.getNode()) {
+ setValue(&I, Res.first);
+ DAG.setRoot(Res.second);
+ return true;
+ }
+
+ return false;
+}
+
+/// visitStrCmpCall - See if we can lower a call to strcmp in an optimized form.
+/// If so, return true and lower it, otherwise return false and it will be
+/// lowered like a normal call.
+bool SelectionDAGBuilder::visitStrCmpCall(const CallInst &I) {
+ // Verify that the prototype makes sense. int strcmp(void*,void*)
+ if (I.getNumArgOperands() != 2)
+ return false;
+
+ const Value *Arg0 = I.getArgOperand(0), *Arg1 = I.getArgOperand(1);
+ if (!Arg0->getType()->isPointerTy() ||
+ !Arg1->getType()->isPointerTy() ||
+ !I.getType()->isIntegerTy())
+ return false;
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForStrcmp(DAG, getCurSDLoc(), DAG.getRoot(),
+ getValue(Arg0), getValue(Arg1),
+ MachinePointerInfo(Arg0),
+ MachinePointerInfo(Arg1));
+ if (Res.first.getNode()) {
+ processIntegerCallValue(I, Res.first, true);
+ PendingLoads.push_back(Res.second);
+ return true;
+ }
+
+ return false;
+}
+
+/// visitStrLenCall -- See if we can lower a strlen call into an optimized
+/// form. If so, return true and lower it, otherwise return false and it
+/// will be lowered like a normal call.
+bool SelectionDAGBuilder::visitStrLenCall(const CallInst &I) {
+ // Verify that the prototype makes sense. size_t strlen(char *)
+ if (I.getNumArgOperands() != 1)
+ return false;
+
+ const Value *Arg0 = I.getArgOperand(0);
+ if (!Arg0->getType()->isPointerTy() || !I.getType()->isIntegerTy())
+ return false;
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForStrlen(DAG, getCurSDLoc(), DAG.getRoot(),
+ getValue(Arg0), MachinePointerInfo(Arg0));
+ if (Res.first.getNode()) {
+ processIntegerCallValue(I, Res.first, false);
+ PendingLoads.push_back(Res.second);
+ return true;
+ }
+
+ return false;
+}
+
+/// visitStrNLenCall -- See if we can lower a strnlen call into an optimized
+/// form. If so, return true and lower it, otherwise return false and it
+/// will be lowered like a normal call.
+bool SelectionDAGBuilder::visitStrNLenCall(const CallInst &I) {
+ // Verify that the prototype makes sense. size_t strnlen(char *, size_t)
+ if (I.getNumArgOperands() != 2)
+ return false;
+
+ const Value *Arg0 = I.getArgOperand(0), *Arg1 = I.getArgOperand(1);
+ if (!Arg0->getType()->isPointerTy() ||
+ !Arg1->getType()->isIntegerTy() ||
+ !I.getType()->isIntegerTy())
+ return false;
+
+ const TargetSelectionDAGInfo &TSI = DAG.getSelectionDAGInfo();
+ std::pair<SDValue, SDValue> Res =
+ TSI.EmitTargetCodeForStrnlen(DAG, getCurSDLoc(), DAG.getRoot(),
+ getValue(Arg0), getValue(Arg1),
+ MachinePointerInfo(Arg0));
+ if (Res.first.getNode()) {
+ processIntegerCallValue(I, Res.first, false);
+ PendingLoads.push_back(Res.second);
+ return true;
+ }
+
+ return false;
+}
+
/// visitUnaryFloatCall - If a call instruction is a unary floating-point
/// operation (as expected), translate it to an SDNode with the specified opcode
/// and return true.
if (visitUnaryFloatCall(I, ISD::FRINT))
return;
break;
+ case LibFunc::round:
+ case LibFunc::roundf:
+ case LibFunc::roundl:
+ if (visitUnaryFloatCall(I, ISD::FROUND))
+ return;
+ break;
case LibFunc::trunc:
case LibFunc::truncf:
case LibFunc::truncl:
if (visitMemCmpCall(I))
return;
break;
+ case LibFunc::memchr:
+ if (visitMemChrCall(I))
+ return;
+ break;
+ case LibFunc::strcpy:
+ if (visitStrCpyCall(I, false))
+ return;
+ break;
+ case LibFunc::stpcpy:
+ if (visitStrCpyCall(I, true))
+ return;
+ break;
+ case LibFunc::strcmp:
+ if (visitStrCmpCall(I))
+ return;
+ break;
+ case LibFunc::strlen:
+ if (visitStrLenCall(I))
+ return;
+ break;
+ case LibFunc::strnlen:
+ if (visitStrNLenCall(I))
+ return;
+ break;
}
}
}
if (!RenameFn)
Callee = getValue(I.getCalledValue());
else
- Callee = DAG.getExternalSymbol(RenameFn, TLI.getPointerTy());
+ Callee = DAG.getExternalSymbol(RenameFn,
+ TM.getTargetLowering()->getPointerTy());
// Check if we can potentially perform a tail call. More detailed checking is
// be done within LowerCallTo, after more information about the call is known.
/// ConstraintOperands - Information about all of the constraints.
SDISelAsmOperandInfoVector ConstraintOperands;
+ const TargetLowering *TLI = TM.getTargetLowering();
TargetLowering::AsmOperandInfoVector
- TargetConstraints = TLI.ParseConstraints(CS);
+ TargetConstraints = TLI->ParseConstraints(CS);
bool hasMemory = false;
// corresponding argument.
assert(!CS.getType()->isVoidTy() && "Bad inline asm!");
if (StructType *STy = dyn_cast<StructType>(CS.getType())) {
- OpVT = TLI.getSimpleValueType(STy->getElementType(ResNo));
+ OpVT = TLI->getSimpleValueType(STy->getElementType(ResNo));
} else {
assert(ResNo == 0 && "Asm only has one result!");
- OpVT = TLI.getSimpleValueType(CS.getType());
+ OpVT = TLI->getSimpleValueType(CS.getType());
}
++ResNo;
break;
OpInfo.CallOperand = getValue(OpInfo.CallOperandVal);
}
- OpVT = OpInfo.getCallOperandValEVT(*DAG.getContext(), TLI, TD).
+ OpVT = OpInfo.getCallOperandValEVT(*DAG.getContext(), *TLI, TD).
getSimpleVT();
}
else {
for (unsigned j = 0, ee = OpInfo.Codes.size(); j != ee; ++j) {
TargetLowering::ConstraintType
- CType = TLI.getConstraintType(OpInfo.Codes[j]);
+ CType = TLI->getConstraintType(OpInfo.Codes[j]);
if (CType == TargetLowering::C_Memory) {
hasMemory = true;
break;
if (OpInfo.ConstraintVT != Input.ConstraintVT) {
std::pair<unsigned, const TargetRegisterClass*> MatchRC =
- TLI.getRegForInlineAsmConstraint(OpInfo.ConstraintCode,
- OpInfo.ConstraintVT);
+ TLI->getRegForInlineAsmConstraint(OpInfo.ConstraintCode,
+ OpInfo.ConstraintVT);
std::pair<unsigned, const TargetRegisterClass*> InputRC =
- TLI.getRegForInlineAsmConstraint(Input.ConstraintCode,
- Input.ConstraintVT);
+ TLI->getRegForInlineAsmConstraint(Input.ConstraintCode,
+ Input.ConstraintVT);
if ((OpInfo.ConstraintVT.isInteger() !=
Input.ConstraintVT.isInteger()) ||
(MatchRC.second != InputRC.second)) {
}
// Compute the constraint code and ConstraintType to use.
- TLI.ComputeConstraintToUse(OpInfo, OpInfo.CallOperand, &DAG);
+ TLI->ComputeConstraintToUse(OpInfo, OpInfo.CallOperand, &DAG);
if (OpInfo.ConstraintType == TargetLowering::C_Memory &&
OpInfo.Type == InlineAsm::isClobber)
if (isa<ConstantFP>(OpVal) || isa<ConstantInt>(OpVal) ||
isa<ConstantVector>(OpVal) || isa<ConstantDataVector>(OpVal)) {
OpInfo.CallOperand = DAG.getConstantPool(cast<Constant>(OpVal),
- TLI.getPointerTy());
+ TLI->getPointerTy());
} else {
// Otherwise, create a stack slot and emit a store to it before the
// asm.
Type *Ty = OpVal->getType();
- uint64_t TySize = TLI.getDataLayout()->getTypeAllocSize(Ty);
- unsigned Align = TLI.getDataLayout()->getPrefTypeAlignment(Ty);
+ uint64_t TySize = TLI->getDataLayout()->getTypeAllocSize(Ty);
+ unsigned Align = TLI->getDataLayout()->getPrefTypeAlignment(Ty);
MachineFunction &MF = DAG.getMachineFunction();
int SSFI = MF.getFrameInfo()->CreateStackObject(TySize, Align, false);
- SDValue StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy());
+ SDValue StackSlot = DAG.getFrameIndex(SSFI, TLI->getPointerTy());
Chain = DAG.getStore(Chain, getCurSDLoc(),
OpInfo.CallOperand, StackSlot,
MachinePointerInfo::getFixedStack(SSFI),
// If this constraint is for a specific register, allocate it before
// anything else.
if (OpInfo.ConstraintType == TargetLowering::C_Register)
- GetRegistersForValue(DAG, TLI, getCurSDLoc(), OpInfo);
+ GetRegistersForValue(DAG, *TLI, getCurSDLoc(), OpInfo);
}
// Second pass - Loop over all of the operands, assigning virtual or physregs
// C_Register operands have already been allocated, Other/Memory don't need
// to be.
if (OpInfo.ConstraintType == TargetLowering::C_RegisterClass)
- GetRegistersForValue(DAG, TLI, getCurSDLoc(), OpInfo);
+ GetRegistersForValue(DAG, *TLI, getCurSDLoc(), OpInfo);
}
// AsmNodeOperands - The operands for the ISD::INLINEASM node.
AsmNodeOperands.push_back(SDValue()); // reserve space for input chain
AsmNodeOperands.push_back(
DAG.getTargetExternalSymbol(IA->getAsmString().c_str(),
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
// If we have a !srcloc metadata node associated with it, we want to attach
// this to the ultimately generated inline asm machineinstr. To do this, we
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
// Compute the constraint code and ConstraintType to use.
- TLI.ComputeConstraintToUse(OpInfo, SDValue());
+ TLI->ComputeConstraintToUse(OpInfo, SDValue());
// Ideally, we would only check against memory constraints. However, the
// meaning of an other constraint can be target-specific and we can't easily
}
AsmNodeOperands.push_back(DAG.getTargetConstant(ExtraInfo,
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
// Loop over all of the inputs, copying the operand values into the
// appropriate registers and processing the output regs.
// Add information to the INLINEASM node to know about this output.
unsigned OpFlags = InlineAsm::getFlagWord(InlineAsm::Kind_Mem, 1);
AsmNodeOperands.push_back(DAG.getTargetConstant(OpFlags,
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
AsmNodeOperands.push_back(OpInfo.CallOperand);
break;
}
// we can use.
if (OpInfo.AssignedRegs.Regs.empty()) {
LLVMContext &Ctx = *DAG.getContext();
- Ctx.emitError(CS.getInstruction(),
+ Ctx.emitError(CS.getInstruction(),
"couldn't allocate output register for constraint '" +
- Twine(OpInfo.ConstraintCode) + "'");
- break;
+ Twine(OpInfo.ConstraintCode) + "'");
+ return;
}
// If this is an indirect operand, store through the pointer after the
// Add information to the INLINEASM node to know that this register is
// set.
- OpInfo.AssignedRegs.AddInlineAsmOperands(OpInfo.isEarlyClobber ?
- InlineAsm::Kind_RegDefEarlyClobber :
- InlineAsm::Kind_RegDef,
- false,
- 0,
- DAG,
- AsmNodeOperands);
+ OpInfo.AssignedRegs
+ .AddInlineAsmOperands(OpInfo.isEarlyClobber
+ ? InlineAsm::Kind_RegDefEarlyClobber
+ : InlineAsm::Kind_RegDef,
+ false, 0, DAG, AsmNodeOperands);
break;
}
case InlineAsm::isInput: {
if (OpInfo.isIndirect) {
// This happens on gcc/testsuite/gcc.dg/pr8788-1.c
LLVMContext &Ctx = *DAG.getContext();
- Ctx.emitError(CS.getInstruction(), "inline asm not supported yet:"
- " don't know how to handle tied "
- "indirect register inputs");
- report_fatal_error("Cannot handle indirect register inputs!");
+ Ctx.emitError(CS.getInstruction(), "inline asm not supported yet:"
+ " don't know how to handle tied "
+ "indirect register inputs");
+ return;
}
RegsForValue MatchedRegs;
MachineRegisterInfo &RegInfo = DAG.getMachineFunction().getRegInfo();
for (unsigned i = 0, e = InlineAsm::getNumOperandRegisters(OpFlag);
i != e; ++i) {
- if (const TargetRegisterClass *RC = TLI.getRegClassFor(RegVT))
+ if (const TargetRegisterClass *RC = TLI->getRegClassFor(RegVT))
MatchedRegs.Regs.push_back(RegInfo.createVirtualRegister(RC));
else {
LLVMContext &Ctx = *DAG.getContext();
- Ctx.emitError(CS.getInstruction(), "inline asm error: This value"
+ Ctx.emitError(CS.getInstruction(),
+ "inline asm error: This value"
" type register class is not natively supported!");
- report_fatal_error("inline asm error: This value type register "
- "class is not natively supported!");
+ return;
}
}
// Use the produced MatchedRegs object to
OpFlag = InlineAsm::getFlagWordForMatchingOp(OpFlag,
OpInfo.getMatchedOperand());
AsmNodeOperands.push_back(DAG.getTargetConstant(OpFlag,
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
AsmNodeOperands.push_back(AsmNodeOperands[CurOp+1]);
break;
}
if (OpInfo.ConstraintType == TargetLowering::C_Other) {
std::vector<SDValue> Ops;
- TLI.LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode,
- Ops, DAG);
+ TLI->LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode,
+ Ops, DAG);
if (Ops.empty()) {
LLVMContext &Ctx = *DAG.getContext();
Ctx.emitError(CS.getInstruction(),
"invalid operand for inline asm constraint '" +
- Twine(OpInfo.ConstraintCode) + "'");
- break;
+ Twine(OpInfo.ConstraintCode) + "'");
+ return;
}
// Add information to the INLINEASM node to know about this input.
unsigned ResOpType =
InlineAsm::getFlagWord(InlineAsm::Kind_Imm, Ops.size());
AsmNodeOperands.push_back(DAG.getTargetConstant(ResOpType,
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
AsmNodeOperands.insert(AsmNodeOperands.end(), Ops.begin(), Ops.end());
break;
}
if (OpInfo.ConstraintType == TargetLowering::C_Memory) {
assert(OpInfo.isIndirect && "Operand must be indirect to be a mem!");
- assert(InOperandVal.getValueType() == TLI.getPointerTy() &&
+ assert(InOperandVal.getValueType() == TLI->getPointerTy() &&
"Memory operands expect pointer values");
// Add information to the INLINEASM node to know about this input.
unsigned ResOpType = InlineAsm::getFlagWord(InlineAsm::Kind_Mem, 1);
AsmNodeOperands.push_back(DAG.getTargetConstant(ResOpType,
- TLI.getPointerTy()));
+ TLI->getPointerTy()));
AsmNodeOperands.push_back(InOperandVal);
break;
}
LLVMContext &Ctx = *DAG.getContext();
Ctx.emitError(CS.getInstruction(),
"Don't know how to handle indirect register inputs yet "
- "for constraint '" + Twine(OpInfo.ConstraintCode) + "'");
- break;
+ "for constraint '" +
+ Twine(OpInfo.ConstraintCode) + "'");
+ return;
}
// Copy the input into the appropriate registers.
if (OpInfo.AssignedRegs.Regs.empty()) {
LLVMContext &Ctx = *DAG.getContext();
- Ctx.emitError(CS.getInstruction(),
+ Ctx.emitError(CS.getInstruction(),
"couldn't allocate input reg for constraint '" +
- Twine(OpInfo.ConstraintCode) + "'");
- break;
+ Twine(OpInfo.ConstraintCode) + "'");
+ return;
}
OpInfo.AssignedRegs.getCopyToRegs(InOperandVal, DAG, getCurSDLoc(),
// FIXME: Why don't we do this for inline asms with MRVs?
if (CS.getType()->isSingleValueType() && CS.getType()->isSized()) {
- EVT ResultType = TLI.getValueType(CS.getType());
+ EVT ResultType = TLI->getValueType(CS.getType());
// If any of the results of the inline asm is a vector, it may have the
// wrong width/num elts. This can happen for register classes that can
}
void SelectionDAGBuilder::visitVAArg(const VAArgInst &I) {
- const DataLayout &TD = *TLI.getDataLayout();
- SDValue V = DAG.getVAArg(TLI.getValueType(I.getType()), getCurSDLoc(),
+ const TargetLowering *TLI = TM.getTargetLowering();
+ const DataLayout &TD = *TLI->getDataLayout();
+ SDValue V = DAG.getVAArg(TLI->getValueType(I.getType()), getCurSDLoc(),
getRoot(), getValue(I.getOperand(0)),
DAG.getSrcValue(I.getOperand(0)),
TD.getABITypeAlignment(I.getType()));
"Copy from a reg to the same reg!");
assert(!TargetRegisterInfo::isPhysicalRegister(Reg) && "Is a physreg");
- RegsForValue RFV(V->getContext(), TLI, Reg, V->getType());
+ const TargetLowering *TLI = TM.getTargetLowering();
+ RegsForValue RFV(V->getContext(), *TLI, Reg, V->getType());
SDValue Chain = DAG.getEntryNode();
RFV.getCopyToRegs(Op, DAG, getCurSDLoc(), Chain, 0, V);
PendingExports.push_back(Chain);
void SelectionDAGISel::LowerArguments(const Function &F) {
SelectionDAG &DAG = SDB->DAG;
SDLoc dl = SDB->getCurSDLoc();
+ const TargetLowering *TLI = getTargetLowering();
const DataLayout *TD = TLI->getDataLayout();
SmallVector<ISD::InputArg, 16> Ins;
if (!FuncInfo->CanLowerReturn) {
// Put in an sret pointer parameter before all the other parameters.
SmallVector<EVT, 1> ValueVTs;
- ComputeValueVTs(*TLI, PointerType::getUnqual(F.getReturnType()), ValueVTs);
+ ComputeValueVTs(*getTargetLowering(),
+ PointerType::getUnqual(F.getReturnType()), ValueVTs);
// NOTE: Assuming that a pointer will never break down to more than one VT
// or one register.
SDB->setValue(I, Res);
if (!TM.Options.EnableFastISel && Res.getOpcode() == ISD::BUILD_PAIR) {
- if (LoadSDNode *LNode =
+ if (LoadSDNode *LNode =
dyn_cast<LoadSDNode>(Res.getOperand(0).getNode()))
if (FrameIndexSDNode *FI =
dyn_cast<FrameIndexSDNode>(LNode->getBasePtr().getNode()))
// Remember that this register needs to added to the machine PHI node as
// the input for this MBB.
SmallVector<EVT, 4> ValueVTs;
- ComputeValueVTs(TLI, PN->getType(), ValueVTs);
+ const TargetLowering *TLI = TM.getTargetLowering();
+ ComputeValueVTs(*TLI, PN->getType(), ValueVTs);
for (unsigned vti = 0, vte = ValueVTs.size(); vti != vte; ++vti) {
EVT VT = ValueVTs[vti];
- unsigned NumRegisters = TLI.getNumRegisters(*DAG.getContext(), VT);
+ unsigned NumRegisters = TLI->getNumRegisters(*DAG.getContext(), VT);
for (unsigned i = 0, e = NumRegisters; i != e; ++i)
FuncInfo.PHINodesToUpdate.push_back(std::make_pair(MBBI++, Reg+i));
Reg += NumRegisters;
}
}
}
+
ConstantsOut.clear();
}
+
+/// Add a successor MBB to ParentMBB< creating a new MachineBB for BB if SuccMBB
+/// is 0.
+MachineBasicBlock *
+SelectionDAGBuilder::StackProtectorDescriptor::
+AddSuccessorMBB(const BasicBlock *BB,
+ MachineBasicBlock *ParentMBB,
+ MachineBasicBlock *SuccMBB) {
+ // If SuccBB has not been created yet, create it.
+ if (!SuccMBB) {
+ MachineFunction *MF = ParentMBB->getParent();
+ MachineFunction::iterator BBI = ParentMBB;
+ SuccMBB = MF->CreateMachineBasicBlock(BB);
+ MF->insert(++BBI, SuccMBB);
+ }
+ // Add it as a successor of ParentMBB.
+ ParentMBB->addSuccessor(SuccMBB);
+ return SuccMBB;
+}
projects / oota-llvm.git / blobdiff