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path: root/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp266
1 files changed, 134 insertions, 132 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 7807841cce..8aa4ac376f 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -613,11 +613,11 @@ void SelectionDAGBuilder::AssignOrderingToNode(const SDNode *Node) {
AssignOrderingToNode(Node->getOperand(I).getNode());
}
-void SelectionDAGBuilder::visit(Instruction &I) {
+void SelectionDAGBuilder::visit(const Instruction &I) {
visit(I.getOpcode(), I);
}
-void SelectionDAGBuilder::visit(unsigned Opcode, User &I) {
+void SelectionDAGBuilder::visit(unsigned Opcode, const User &I) {
// Note: this doesn't use InstVisitor, because it has to work with
// ConstantExpr's in addition to instructions.
switch (Opcode) {
@@ -812,7 +812,7 @@ static void getReturnInfo(const Type* ReturnType,
}
}
-void SelectionDAGBuilder::visitRet(ReturnInst &I) {
+void SelectionDAGBuilder::visitRet(const ReturnInst &I) {
SDValue Chain = getControlRoot();
SmallVector<ISD::OutputArg, 8> Outs;
FunctionLoweringInfo &FLI = DAG.getFunctionLoweringInfo();
@@ -917,7 +917,7 @@ void SelectionDAGBuilder::visitRet(ReturnInst &I) {
/// CopyToExportRegsIfNeeded - If the given value has virtual registers
/// created for it, emit nodes to copy the value into the virtual
/// registers.
-void SelectionDAGBuilder::CopyToExportRegsIfNeeded(Value *V) {
+void SelectionDAGBuilder::CopyToExportRegsIfNeeded(const Value *V) {
if (!V->use_empty()) {
DenseMap<const Value *, unsigned>::iterator VMI = FuncInfo.ValueMap.find(V);
if (VMI != FuncInfo.ValueMap.end())
@@ -928,7 +928,7 @@ void SelectionDAGBuilder::CopyToExportRegsIfNeeded(Value *V) {
/// ExportFromCurrentBlock - If this condition isn't known to be exported from
/// the current basic block, add it to ValueMap now so that we'll get a
/// CopyTo/FromReg.
-void SelectionDAGBuilder::ExportFromCurrentBlock(Value *V) {
+void SelectionDAGBuilder::ExportFromCurrentBlock(const Value *V) {
// No need to export constants.
if (!isa<Instruction>(V) && !isa<Argument>(V)) return;
@@ -939,11 +939,11 @@ void SelectionDAGBuilder::ExportFromCurrentBlock(Value *V) {
CopyValueToVirtualRegister(V, Reg);
}
-bool SelectionDAGBuilder::isExportableFromCurrentBlock(Value *V,
+bool SelectionDAGBuilder::isExportableFromCurrentBlock(const Value *V,
const BasicBlock *FromBB) {
// The operands of the setcc have to be in this block. We don't know
// how to export them from some other block.
- if (Instruction *VI = dyn_cast<Instruction>(V)) {
+ if (const Instruction *VI = dyn_cast<Instruction>(V)) {
// Can export from current BB.
if (VI->getParent() == FromBB)
return true;
@@ -977,7 +977,7 @@ static bool InBlock(const Value *V, const BasicBlock *BB) {
/// AND operator tree.
///
void
-SelectionDAGBuilder::EmitBranchForMergedCondition(Value *Cond,
+SelectionDAGBuilder::EmitBranchForMergedCondition(const Value *Cond,
MachineBasicBlock *TBB,
MachineBasicBlock *FBB,
MachineBasicBlock *CurBB) {
@@ -985,7 +985,7 @@ SelectionDAGBuilder::EmitBranchForMergedCondition(Value *Cond,
// If the leaf of the tree is a comparison, merge the condition into
// the caseblock.
- if (CmpInst *BOp = dyn_cast<CmpInst>(Cond)) {
+ if (const CmpInst *BOp = dyn_cast<CmpInst>(Cond)) {
// The operands of the cmp have to be in this block. We don't know
// how to export them from some other block. If this is the first block
// of the sequence, no exporting is needed.
@@ -993,9 +993,9 @@ SelectionDAGBuilder::EmitBranchForMergedCondition(Value *Cond,
(isExportableFromCurrentBlock(BOp->getOperand(0), BB) &&
isExportableFromCurrentBlock(BOp->getOperand(1), BB))) {
ISD::CondCode Condition;
- if (ICmpInst *IC = dyn_cast<ICmpInst>(Cond)) {
+ if (const ICmpInst *IC = dyn_cast<ICmpInst>(Cond)) {
Condition = getICmpCondCode(IC->getPredicate());
- } else if (FCmpInst *FC = dyn_cast<FCmpInst>(Cond)) {
+ } else if (const FCmpInst *FC = dyn_cast<FCmpInst>(Cond)) {
Condition = getFCmpCondCode(FC->getPredicate());
} else {
Condition = ISD::SETEQ; // silence warning.
@@ -1016,13 +1016,13 @@ SelectionDAGBuilder::EmitBranchForMergedCondition(Value *Cond,
}
/// FindMergedConditions - If Cond is an expression like
-void SelectionDAGBuilder::FindMergedConditions(Value *Cond,
+void SelectionDAGBuilder::FindMergedConditions(const Value *Cond,
MachineBasicBlock *TBB,
MachineBasicBlock *FBB,
MachineBasicBlock *CurBB,
unsigned Opc) {
// If this node is not part of the or/and tree, emit it as a branch.
- Instruction *BOp = dyn_cast<Instruction>(Cond);
+ const Instruction *BOp = dyn_cast<Instruction>(Cond);
if (!BOp || !(isa<BinaryOperator>(BOp) || isa<CmpInst>(BOp)) ||
(unsigned)BOp->getOpcode() != Opc || !BOp->hasOneUse() ||
BOp->getParent() != CurBB->getBasicBlock() ||
@@ -1102,7 +1102,7 @@ SelectionDAGBuilder::ShouldEmitAsBranches(const std::vector<CaseBlock> &Cases){
return true;
}
-void SelectionDAGBuilder::visitBr(BranchInst &I) {
+void SelectionDAGBuilder::visitBr(const BranchInst &I) {
// Update machine-CFG edges.
MachineBasicBlock *Succ0MBB = FuncInfo.MBBMap[I.getSuccessor(0)];
@@ -1127,7 +1127,7 @@ void SelectionDAGBuilder::visitBr(BranchInst &I) {
// If this condition is one of the special cases we handle, do special stuff
// now.
- Value *CondVal = I.getCondition();
+ const Value *CondVal = I.getCondition();
MachineBasicBlock *Succ1MBB = FuncInfo.MBBMap[I.getSuccessor(1)];
// If this is a series of conditions that are or'd or and'd together, emit
@@ -1145,7 +1145,7 @@ void SelectionDAGBuilder::visitBr(BranchInst &I) {
// cmp D, E
// jle foo
//
- if (BinaryOperator *BOp = dyn_cast<BinaryOperator>(CondVal)) {
+ if (const BinaryOperator *BOp = dyn_cast<BinaryOperator>(CondVal)) {
if (BOp->hasOneUse() &&
(BOp->getOpcode() == Instruction::And ||
BOp->getOpcode() == Instruction::Or)) {
@@ -1417,7 +1417,7 @@ void SelectionDAGBuilder::visitBitTestCase(MachineBasicBlock* NextMBB,
DAG.setRoot(BrAnd);
}
-void SelectionDAGBuilder::visitInvoke(InvokeInst &I) {
+void SelectionDAGBuilder::visitInvoke(const InvokeInst &I) {
// Retrieve successors.
MachineBasicBlock *Return = FuncInfo.MBBMap[I.getSuccessor(0)];
MachineBasicBlock *LandingPad = FuncInfo.MBBMap[I.getSuccessor(1)];
@@ -1442,14 +1442,14 @@ void SelectionDAGBuilder::visitInvoke(InvokeInst &I) {
DAG.getBasicBlock(Return)));
}
-void SelectionDAGBuilder::visitUnwind(UnwindInst &I) {
+void SelectionDAGBuilder::visitUnwind(const UnwindInst &I) {
}
/// handleSmallSwitchCaseRange - Emit a series of specific tests (suitable for
/// small case ranges).
bool SelectionDAGBuilder::handleSmallSwitchRange(CaseRec& CR,
CaseRecVector& WorkList,
- Value* SV,
+ const Value* SV,
MachineBasicBlock* Default) {
Case& BackCase = *(CR.Range.second-1);
@@ -1503,7 +1503,7 @@ bool SelectionDAGBuilder::handleSmallSwitchRange(CaseRec& CR,
FallThrough = Default;
}
- Value *RHS, *LHS, *MHS;
+ const Value *RHS, *LHS, *MHS;
ISD::CondCode CC;
if (I->High == I->Low) {
// This is just small small case range :) containing exactly 1 case
@@ -1546,7 +1546,7 @@ static APInt ComputeRange(const APInt &First, const APInt &Last) {
/// handleJTSwitchCase - Emit jumptable for current switch case range
bool SelectionDAGBuilder::handleJTSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
- Value* SV,
+ const Value* SV,
MachineBasicBlock* Default) {
Case& FrontCase = *CR.Range.first;
Case& BackCase = *(CR.Range.second-1);
@@ -1641,7 +1641,7 @@ bool SelectionDAGBuilder::handleJTSwitchCase(CaseRec& CR,
/// 2 subtrees.
bool SelectionDAGBuilder::handleBTSplitSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
- Value* SV,
+ const Value* SV,
MachineBasicBlock* Default) {
// Get the MachineFunction which holds the current MBB. This is used when
// inserting any additional MBBs necessary to represent the switch.
@@ -1769,7 +1769,7 @@ bool SelectionDAGBuilder::handleBTSplitSwitchCase(CaseRec& CR,
/// of masks and emit bit tests with these masks.
bool SelectionDAGBuilder::handleBitTestsSwitchCase(CaseRec& CR,
CaseRecVector& WorkList,
- Value* SV,
+ const Value* SV,
MachineBasicBlock* Default){
EVT PTy = TLI.getPointerTy();
unsigned IntPtrBits = PTy.getSizeInBits();
@@ -1939,7 +1939,7 @@ size_t SelectionDAGBuilder::Clusterify(CaseVector& Cases,
return numCmps;
}
-void SelectionDAGBuilder::visitSwitch(SwitchInst &SI) {
+void SelectionDAGBuilder::visitSwitch(const SwitchInst &SI) {
// Figure out which block is immediately after the current one.
MachineBasicBlock *NextBlock = 0;
MachineBasicBlock *Default = FuncInfo.MBBMap[SI.getDefaultDest()];
@@ -1971,7 +1971,7 @@ void SelectionDAGBuilder::visitSwitch(SwitchInst &SI) {
// Get the Value to be switched on and default basic blocks, which will be
// inserted into CaseBlock records, representing basic blocks in the binary
// search tree.
- Value *SV = SI.getOperand(0);
+ const Value *SV = SI.getOperand(0);
// Push the initial CaseRec onto the worklist
CaseRecVector WorkList;
@@ -2002,7 +2002,7 @@ void SelectionDAGBuilder::visitSwitch(SwitchInst &SI) {
}
}
-void SelectionDAGBuilder::visitIndirectBr(IndirectBrInst &I) {
+void SelectionDAGBuilder::visitIndirectBr(const IndirectBrInst &I) {
// Update machine-CFG edges with unique successors.
SmallVector<BasicBlock*, 32> succs;
succs.reserve(I.getNumSuccessors());
@@ -2018,7 +2018,7 @@ void SelectionDAGBuilder::visitIndirectBr(IndirectBrInst &I) {
getValue(I.getAddress())));
}
-void SelectionDAGBuilder::visitFSub(User &I) {
+void SelectionDAGBuilder::visitFSub(const User &I) {
// -0.0 - X --> fneg
const Type *Ty = I.getType();
if (Ty->isVectorTy()) {
@@ -2048,14 +2048,14 @@ void SelectionDAGBuilder::visitFSub(User &I) {
visitBinary(I, ISD::FSUB);
}
-void SelectionDAGBuilder::visitBinary(User &I, unsigned OpCode) {
+void SelectionDAGBuilder::visitBinary(const User &I, unsigned OpCode) {
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
setValue(&I, DAG.getNode(OpCode, getCurDebugLoc(),
Op1.getValueType(), Op1, Op2));
}
-void SelectionDAGBuilder::visitShift(User &I, unsigned Opcode) {
+void SelectionDAGBuilder::visitShift(const User &I, unsigned Opcode) {
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
if (!I.getType()->isVectorTy() &&
@@ -2089,11 +2089,11 @@ void SelectionDAGBuilder::visitShift(User &I, unsigned Opcode) {
Op1.getValueType(), Op1, Op2));
}
-void SelectionDAGBuilder::visitICmp(User &I) {
+void SelectionDAGBuilder::visitICmp(const User &I) {
ICmpInst::Predicate predicate = ICmpInst::BAD_ICMP_PREDICATE;
- if (ICmpInst *IC = dyn_cast<ICmpInst>(&I))
+ if (const ICmpInst *IC = dyn_cast<ICmpInst>(&I))
predicate = IC->getPredicate();
- else if (ConstantExpr *IC = dyn_cast<ConstantExpr>(&I))
+ else if (const ConstantExpr *IC = dyn_cast<ConstantExpr>(&I))
predicate = ICmpInst::Predicate(IC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
@@ -2103,11 +2103,11 @@ void SelectionDAGBuilder::visitICmp(User &I) {
setValue(&I, DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Opcode));
}
-void SelectionDAGBuilder::visitFCmp(User &I) {
+void SelectionDAGBuilder::visitFCmp(const User &I) {
FCmpInst::Predicate predicate = FCmpInst::BAD_FCMP_PREDICATE;
- if (FCmpInst *FC = dyn_cast<FCmpInst>(&I))
+ if (const FCmpInst *FC = dyn_cast<FCmpInst>(&I))
predicate = FC->getPredicate();
- else if (ConstantExpr *FC = dyn_cast<ConstantExpr>(&I))
+ else if (const ConstantExpr *FC = dyn_cast<ConstantExpr>(&I))
predicate = FCmpInst::Predicate(FC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
@@ -2116,7 +2116,7 @@ void SelectionDAGBuilder::visitFCmp(User &I) {
setValue(&I, DAG.getSetCC(getCurDebugLoc(), DestVT, Op1, Op2, Condition));
}
-void SelectionDAGBuilder::visitSelect(User &I) {
+void SelectionDAGBuilder::visitSelect(const User &I) {
SmallVector<EVT, 4> ValueVTs;
ComputeValueVTs(TLI, I.getType(), ValueVTs);
unsigned NumValues = ValueVTs.size();
@@ -2141,14 +2141,14 @@ void SelectionDAGBuilder::visitSelect(User &I) {
&Values[0], NumValues));
}
-void SelectionDAGBuilder::visitTrunc(User &I) {
+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());
setValue(&I, DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitZExt(User &I) {
+void SelectionDAGBuilder::visitZExt(const User &I) {
// 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));
@@ -2156,7 +2156,7 @@ void SelectionDAGBuilder::visitZExt(User &I) {
setValue(&I, DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitSExt(User &I) {
+void SelectionDAGBuilder::visitSExt(const User &I) {
// 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));
@@ -2164,7 +2164,7 @@ void SelectionDAGBuilder::visitSExt(User &I) {
setValue(&I, DAG.getNode(ISD::SIGN_EXTEND, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitFPTrunc(User &I) {
+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());
@@ -2172,42 +2172,42 @@ void SelectionDAGBuilder::visitFPTrunc(User &I) {
DestVT, N, DAG.getIntPtrConstant(0)));
}
-void SelectionDAGBuilder::visitFPExt(User &I){
+void SelectionDAGBuilder::visitFPExt(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());
setValue(&I, DAG.getNode(ISD::FP_EXTEND, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitFPToUI(User &I) {
+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());
setValue(&I, DAG.getNode(ISD::FP_TO_UINT, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitFPToSI(User &I) {
+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());
setValue(&I, DAG.getNode(ISD::FP_TO_SINT, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitUIToFP(User &I) {
+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());
setValue(&I, DAG.getNode(ISD::UINT_TO_FP, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitSIToFP(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());
setValue(&I, DAG.getNode(ISD::SINT_TO_FP, getCurDebugLoc(), DestVT, N));
}
-void SelectionDAGBuilder::visitPtrToInt(User &I) {
+void SelectionDAGBuilder::visitPtrToInt(const User &I) {
// 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));
@@ -2216,7 +2216,7 @@ void SelectionDAGBuilder::visitPtrToInt(User &I) {
setValue(&I, DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT));
}
-void SelectionDAGBuilder::visitIntToPtr(User &I) {
+void SelectionDAGBuilder::visitIntToPtr(const User &I) {
// 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));
@@ -2225,7 +2225,7 @@ void SelectionDAGBuilder::visitIntToPtr(User &I) {
setValue(&I, DAG.getZExtOrTrunc(N, getCurDebugLoc(), DestVT));
}
-void SelectionDAGBuilder::visitBitCast(User &I) {
+void SelectionDAGBuilder::visitBitCast(const User &I) {
SDValue N = getValue(I.getOperand(0));
EVT DestVT = TLI.getValueType(I.getType());
@@ -2238,7 +2238,7 @@ void SelectionDAGBuilder::visitBitCast(User &I) {
setValue(&I, N); // noop cast.
}
-void SelectionDAGBuilder::visitInsertElement(User &I) {
+void SelectionDAGBuilder::visitInsertElement(const User &I) {
SDValue InVec = getValue(I.getOperand(0));
SDValue InVal = getValue(I.getOperand(1));
SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(),
@@ -2249,7 +2249,7 @@ void SelectionDAGBuilder::visitInsertElement(User &I) {
InVec, InVal, InIdx));
}
-void SelectionDAGBuilder::visitExtractElement(User &I) {
+void SelectionDAGBuilder::visitExtractElement(const User &I) {
SDValue InVec = getValue(I.getOperand(0));
SDValue InIdx = DAG.getNode(ISD::ZERO_EXTEND, getCurDebugLoc(),
TLI.getPointerTy(),
@@ -2268,7 +2268,7 @@ static bool SequentialMask(SmallVectorImpl<int> &Mask, unsigned SIndx) {
return true;
}
-void SelectionDAGBuilder::visitShuffleVector(User &I) {
+void SelectionDAGBuilder::visitShuffleVector(const User &I) {
SmallVector<int, 8> Mask;
SDValue Src1 = getValue(I.getOperand(0));
SDValue Src2 = getValue(I.getOperand(1));
@@ -2449,7 +2449,7 @@ void SelectionDAGBuilder::visitShuffleVector(User &I) {
VT, &Ops[0], Ops.size()));
}
-void SelectionDAGBuilder::visitInsertValue(InsertValueInst &I) {
+void SelectionDAGBuilder::visitInsertValue(const InsertValueInst &I) {
const Value *Op0 = I.getOperand(0);
const Value *Op1 = I.getOperand(1);
const Type *AggTy = I.getType();
@@ -2490,7 +2490,7 @@ void SelectionDAGBuilder::visitInsertValue(InsertValueInst &I) {
&Values[0], NumAggValues));
}
-void SelectionDAGBuilder::visitExtractValue(ExtractValueInst &I) {
+void SelectionDAGBuilder::visitExtractValue(const ExtractValueInst &I) {
const Value *Op0 = I.getOperand(0);
const Type *AggTy = Op0->getType();
const Type *ValTy = I.getType();
@@ -2518,13 +2518,13 @@ void SelectionDAGBuilder::visitExtractValue(ExtractValueInst &I) {
&Values[0], NumValValues));
}
-void SelectionDAGBuilder::visitGetElementPtr(User &I) {
+void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
SDValue N = getValue(I.getOperand(0));
const Type *Ty = I.getOperand(0)->getType();
- for (GetElementPtrInst::op_iterator OI = I.op_begin()+1, E = I.op_end();
+ for (GetElementPtrInst::const_op_iterator OI = I.op_begin()+1, E = I.op_end();
OI != E; ++OI) {
- Value *Idx = *OI;
+ const Value *Idx = *OI;
if (const StructType *StTy = dyn_cast<StructType>(Ty)) {
unsigned Field = cast<ConstantInt>(Idx)->getZExtValue();
if (Field) {
@@ -2544,7 +2544,7 @@ void SelectionDAGBuilder::visitGetElementPtr(User &I) {
Ty = cast<SequentialType>(Ty)->getElementType();
// If this is a constant subscript, handle it quickly.
- if (ConstantInt *CI = dyn_cast<ConstantInt>(Idx)) {
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(Idx)) {
if (CI->getZExtValue() == 0) continue;
uint64_t Offs =
TD->getTypeAllocSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
@@ -2595,7 +2595,7 @@ void SelectionDAGBuilder::visitGetElementPtr(User &I) {
setValue(&I, N);
}
-void SelectionDAGBuilder::visitAlloca(AllocaInst &I) {
+void SelectionDAGBuilder::visitAlloca(const AllocaInst &I) {
// If this is a fixed sized alloca in the entry block of the function,
// allocate it statically on the stack.
if (FuncInfo.StaticAllocaMap.count(&I))
@@ -2647,7 +2647,7 @@ void SelectionDAGBuilder::visitAlloca(AllocaInst &I) {
FuncInfo.MF->getFrameInfo()->CreateVariableSizedObject();
}
-void SelectionDAGBuilder::visitLoad(LoadInst &I) {
+void SelectionDAGBuilder::visitLoad(const LoadInst &I) {
const Value *SV = I.getOperand(0);
SDValue Ptr = getValue(SV);
@@ -2707,9 +2707,9 @@ void SelectionDAGBuilder::visitLoad(LoadInst &I) {
&Values[0], NumValues));
}
-void SelectionDAGBuilder::visitStore(StoreInst &I) {
- Value *SrcV = I.getOperand(0);
- Value *PtrV = I.getOperand(1);
+void SelectionDAGBuilder::visitStore(const StoreInst &I) {
+ const Value *SrcV = I.getOperand(0);
+ const Value *PtrV = I.getOperand(1);
SmallVector<EVT, 4> ValueVTs;
SmallVector<uint64_t, 4> Offsets;
@@ -2746,7 +2746,7 @@ void SelectionDAGBuilder::visitStore(StoreInst &I) {
/// visitTargetIntrinsic - Lower a call of a target intrinsic to an INTRINSIC
/// node.
-void SelectionDAGBuilder::visitTargetIntrinsic(CallInst &I,
+void SelectionDAGBuilder::visitTargetIntrinsic(const CallInst &I,
unsigned Intrinsic) {
bool HasChain = !I.doesNotAccessMemory();
bool OnlyLoad = HasChain && I.onlyReadsMemory();
@@ -2872,7 +2872,8 @@ getF32Constant(SelectionDAG &DAG, unsigned Flt) {
/// visitIntrinsicCall: I is a call instruction
/// Op is the associated NodeType for I
const char *
-SelectionDAGBuilder::implVisitBinaryAtomic(CallInst& I, ISD::NodeType Op) {
+SelectionDAGBuilder::implVisitBinaryAtomic(const CallInst& I,
+ ISD::NodeType Op) {
SDValue Root = getRoot();
SDValue L =
DAG.getAtomic(Op, getCurDebugLoc(),
@@ -2888,7 +2889,7 @@ SelectionDAGBuilder::implVisitBinaryAtomic(CallInst& I, ISD::NodeType Op) {
// implVisitAluOverflow - Lower arithmetic overflow instrinsics.
const char *
-SelectionDAGBuilder::implVisitAluOverflow(CallInst &I, ISD::NodeType Op) {
+SelectionDAGBuilder::implVisitAluOverflow(const CallInst &I, ISD::NodeType Op) {
SDValue Op1 = getValue(I.getOperand(1));
SDValue Op2 = getValue(I.getOperand(2));
@@ -2900,7 +2901,7 @@ SelectionDAGBuilder::implVisitAluOverflow(CallInst &I, ISD::NodeType Op) {
/// visitExp - Lower an exp intrinsic. Handles the special sequences for
/// limited-precision mode.
void
-SelectionDAGBuilder::visitExp(CallInst &I) {
+SelectionDAGBuilder::visitExp(const CallInst &I) {
SDValue result;
DebugLoc dl = getCurDebugLoc();
@@ -3026,7 +3027,7 @@ SelectionDAGBuilder::visitExp(CallInst &I) {
/// visitLog - Lower a log intrinsic. Handles the special sequences for
/// limited-precision mode.
void
-SelectionDAGBuilder::visitLog(CallInst &I) {
+SelectionDAGBuilder::visitLog(const CallInst &I) {
SDValue result;
DebugLoc dl = getCurDebugLoc();
@@ -3136,7 +3137,7 @@ SelectionDAGBuilder::visitLog(CallInst &I) {
/// visitLog2 - Lower a log2 intrinsic. Handles the special sequences for
/// limited-precision mode.
void
-SelectionDAGBuilder::visitLog2(CallInst &I) {
+SelectionDAGBuilder::visitLog2(const CallInst &I) {
SDValue result;
DebugLoc dl = getCurDebugLoc();
@@ -3245,7 +3246,7 @@ SelectionDAGBuilder::visitLog2(CallInst &I) {
/// visitLog10 - Lower a log10 intrinsic. Handles the special sequences for
/// limited-precision mode.
void
-SelectionDAGBuilder::visitLog10(CallInst &I) {
+SelectionDAGBuilder::visitLog10(const CallInst &I) {
SDValue result;
DebugLoc dl = getCurDebugLoc();
@@ -3347,7 +3348,7 @@ SelectionDAGBuilder::visitLog10(CallInst &I) {
/// visitExp2 - Lower an exp2 intrinsic. Handles the special sequences for
/// limited-precision mode.
void
-SelectionDAGBuilder::visitExp2(CallInst &I) {
+SelectionDAGBuilder::visitExp2(const CallInst &I) {
SDValue result;
DebugLoc dl = getCurDebugLoc();
@@ -3461,9 +3462,9 @@ SelectionDAGBuilder::visitExp2(CallInst &I) {
/// visitPow - Lower a pow intrinsic. Handles the special sequences for
/// limited-precision mode with x == 10.0f.
void
-SelectionDAGBuilder::visitPow(CallInst &I) {
+SelectionDAGBuilder::visitPow(const CallInst &I) {
SDValue result;
- Value *Val = I.getOperand(1);
+ const Value *Val = I.getOperand(1);
DebugLoc dl = getCurDebugLoc();
bool IsExp10 = false;
@@ -3650,7 +3651,7 @@ static SDValue ExpandPowI(DebugLoc DL, SDValue LHS, SDValue RHS,
/// we want to emit this as a call to a named external function, return the name
/// otherwise lower it and return null.
const char *
-SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
+SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
DebugLoc dl = getCurDebugLoc();
SDValue Res;
@@ -3742,17 +3743,17 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
if (OptLevel != CodeGenOpt::None)
// FIXME: Variable debug info is not supported here.
return 0;
- DbgDeclareInst &DI = cast<DbgDeclareInst>(I);
+ const DbgDeclareInst &DI = cast<DbgDeclareInst>(I);
if (!DIDescriptor::ValidDebugInfo(DI.getVariable(), CodeGenOpt::None))
return 0;
MDNode *Variable = DI.getVariable();
- Value *Address = DI.getAddress();
+ const Value *Address = DI.getAddress();
if (!Address)
return 0;
- if (BitCastInst *BCI = dyn_cast<BitCastInst>(Address))
+ if (const BitCastInst *BCI = dyn_cast<BitCastInst>(Address))
Address = BCI->getOperand(0);
- AllocaInst *AI = dyn_cast<AllocaInst>(Address);
+ const AllocaInst *AI = dyn_cast<AllocaInst>(Address);
// Don't handle byval struct arguments or VLAs, for example.
if (!AI)
return 0;
@@ -3768,13 +3769,13 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
return 0;
}
case Intrinsic::dbg_value: {
- DbgValueInst &DI = cast<DbgValueInst>(I);
+ const DbgValueInst &DI = cast<DbgValueInst>(I);
if (!DIDescriptor::ValidDebugInfo(DI.getVariable(), CodeGenOpt::None))
return 0;
MDNode *Variable = DI.getVariable();
uint64_t Offset = DI.getOffset();
- Value *V = DI.getValue();
+ const Value *V = DI.getValue();
if (!V)
return 0;
@@ -3800,9 +3801,9 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
}
// Build a debug info table entry.
- if (BitCastInst *BCI = dyn_cast<BitCastInst>(V))
+ if (const BitCastInst *BCI = dyn_cast<BitCastInst>(V))
V = BCI->getOperand(0);
- AllocaInst *AI = dyn_cast<AllocaInst>(V);
+ const AllocaInst *AI = dyn_cast<AllocaInst>(V);
// Don't handle byval struct arguments or VLAs, for example.
if (!AI)
return 0;
@@ -3922,7 +3923,7 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
case Intrinsic::convertuu: Code = ISD::CVT_UU; break;
}
EVT DestVT = TLI.getValueType(I.getType());
- Value *Op1 = I.getOperand(1);
+ const Value *Op1 = I.getOperand(1);
Res = DAG.getConvertRndSat(DestVT, getCurDebugLoc(), getValue(Op1),
DAG.getValueType(DestVT),
DAG.getValueType(getValue(Op1).getValueType()),
@@ -4091,8 +4092,8 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
}
case Intrinsic::gcroot:
if (GFI) {
- Value *Alloca = I.getOperand(1);
- Constant *TypeMap = cast<Constant>(I.getOperand(2));
+ const Value *Alloca = I.getOperand(1);
+ const Constant *TypeMap = cast<Constant>(I.getOperand(2));
FrameIndexSDNode *FI = cast<FrameIndexSDNode>(getValue(Alloca).getNode());
GFI->addStackRoot(FI->getIndex(), TypeMap);
@@ -4196,7 +4197,7 @@ SelectionDAGBuilder::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
///
/// This function only tests target-independent requirements.
static bool
-isInTailCallPosition(CallSite CS, Attributes CalleeRetAttr,
+isInTailCallPosition(ImmutableCallSite CS, Attributes CalleeRetAttr,
const TargetLowering &TLI) {
const Instruction *I = CS.getInstruction();
const BasicBlock *ExitBB = I->getParent();
@@ -4275,7 +4276,7 @@ isInTailCallPosition(CallSite CS, Attributes CalleeRetAttr,
return true;
}
-void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
+void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
bool isTailCall,
MachineBasicBlock *LandingPad) {
const PointerType *PT = cast<PointerType>(CS.getCalledValue()->getType());
@@ -4323,7 +4324,7 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
RetTy = Type::getVoidTy(FTy->getContext());
}
- for (CallSite::arg_iterator i = CS.arg_begin(), e = CS.arg_end();
+ for (ImmutableCallSite::arg_iterator i = CS.arg_begin(), e = CS.arg_end();
i != e; ++i) {
SDValue ArgNode = getValue(*i);
Entry.Node = ArgNode; Entry.Ty = (*i)->getType();
@@ -4454,12 +4455,12 @@ void SelectionDAGBuilder::LowerCallTo(CallSite CS, SDValue Callee,
/// IsOnlyUsedInZeroEqualityComparison - Return true if it only matters that the
/// value is equal or not-equal to zero.
-static bool IsOnlyUsedInZeroEqualityComparison(Value *V) {
- for (Value::use_iterator UI = V->use_begin(), E = V->use_end();
+static bool IsOnlyUsedInZeroEqualityComparison(const Value *V) {
+ for (Value::const_use_iterator UI = V->use_begin(), E = V->use_end();
UI != E; ++UI) {
- if (ICmpInst *IC = dyn_cast<ICmpInst>(*UI))
+ if (const ICmpInst *IC = dyn_cast<ICmpInst>(*UI))
if (IC->isEquality())
- if (Constant *C = dyn_cast<Constant>(IC->getOperand(1)))
+ if (const Constant *C = dyn_cast<Constant>(IC->getOperand(1)))
if (C->isNullValue())
continue;
// Unknown instruction.
@@ -4468,17 +4469,20 @@ static bool IsOnlyUsedInZeroEqualityComparison(Value *V) {
return true;
}
-static SDValue getMemCmpLoad(Value *PtrVal, MVT LoadVT, const Type *LoadTy,
+static SDValue getMemCmpLoad(const Value *PtrVal, MVT LoadVT,
+ const Type *LoadTy,
SelectionDAGBuilder &Builder) {
// Check to see if this load can be trivially constant folded, e.g. if the
// input is from a string literal.
- if (Constant *LoadInput = dyn_cast<Constant>(PtrVal)) {
+ if (const Constant *LoadInput = dyn_cast<Constant>(PtrVal)) {
// Cast pointer to the type we really want to load.
- LoadInput = ConstantExpr::getBitCast(LoadInput,
+ LoadInput = ConstantExpr::getBitCast(const_cast<Constant *>(LoadInput),
PointerType::getUnqual(LoadTy));
- if (Constant *LoadCst = ConstantFoldLoadFromConstPtr(LoadInput, Builder.TD))
+ if (const Constant *LoadCst =
+ ConstantFoldLoadFromConstPtr(const_cast<Constant *>(LoadInput),
+ Builder.TD))
return Builder.getValue(LoadCst);
}
@@ -4511,18 +4515,18 @@ static SDValue getMemCmpLoad(Value *PtrVal, MVT LoadVT, const Type *LoadTy,
/// 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
/// lowered like a normal call.
-bool SelectionDAGBuilder::visitMemCmpCall(CallInst &I) {
+bool SelectionDAGBuilder::visitMemCmpCall(const CallInst &I) {
// Verify that the prototype makes sense. int memcmp(void*,void*,size_t)
if (I.getNumOperands() != 4)
return false;
- Value *LHS = I.getOperand(1), *RHS = I.getOperand(2);
+ const Value *LHS = I.getOperand(1), *RHS = I.getOperand(2);
if (!LHS->getType()->isPointerTy() || !RHS->getType()->isPointerTy() ||
!I.getOperand(3)->getType()->isIntegerTy() ||
!I.getType()->isIntegerTy())
return false;
- ConstantInt *Size = dyn_cast<ConstantInt>(I.getOperand(3));
+ const ConstantInt *Size = dyn_cast<ConstantInt>(I.getOperand(3));
// memcmp(S1,S2,2) != 0 -> (*(short*)LHS != *(short*)RHS) != 0
// memcmp(S1,S2,4) != 0 -> (*(int*)LHS != *(int*)RHS) != 0
@@ -4588,7 +4592,7 @@ bool SelectionDAGBuilder::visitMemCmpCall(CallInst &I) {
}
-void SelectionDAGBuilder::visitCall(CallInst &I) {
+void SelectionDAGBuilder::visitCall(const CallInst &I) {
const char *RenameFn = 0;
if (Function *F = I.getCalledFunction()) {
if (F->isDeclaration()) {
@@ -5160,8 +5164,8 @@ GetRegistersForValue(SDISelAsmOperandInfo &OpInfo,
/// visitInlineAsm - Handle a call to an InlineAsm object.
///
-void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
- InlineAsm *IA = cast<InlineAsm>(CS.getCalledValue());
+void SelectionDAGBuilder::visitInlineAsm(ImmutableCallSite CS) {
+ const InlineAsm *IA = cast<InlineAsm>(CS.getCalledValue());
/// ConstraintOperands - Information about all of the constraints.
std::vector<SDISelAsmOperandInfo> ConstraintOperands;
@@ -5197,7 +5201,7 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
case InlineAsm::isOutput:
// Indirect outputs just consume an argument.
if (OpInfo.isIndirect) {
- OpInfo.CallOperandVal = CS.getArgument(ArgNo++);
+ OpInfo.CallOperandVal = const_cast<Value *>(CS.getArgument(ArgNo++));
break;
}
@@ -5214,7 +5218,7 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
++ResNo;
break;
case InlineAsm::isInput:
- OpInfo.CallOperandVal = CS.getArgument(ArgNo++);
+ OpInfo.CallOperandVal = const_cast<Value *>(CS.getArgument(ArgNo++));
break;
case InlineAsm::isClobber:
// Nothing to do.
@@ -5227,7 +5231,7 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
// Strip bitcasts, if any. This mostly comes up for functions.
OpInfo.CallOperandVal = OpInfo.CallOperandVal->stripPointerCasts();
- if (BasicBlock *BB = dyn_cast<BasicBlock>(OpInfo.CallOperandVal)) {
+ if (const BasicBlock *BB = dyn_cast<BasicBlock>(OpInfo.CallOperandVal)) {
OpInfo.CallOperand = DAG.getBasicBlock(FuncInfo.MBBMap[BB]);
} else {
OpInfo.CallOperand = getValue(OpInfo.CallOperandVal);
@@ -5280,7 +5284,7 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
// If the operand is a float, integer, or vector constant, spill to a
// constant pool entry to get its address.
- Value *OpVal = OpInfo.CallOperandVal;
+ const Value *OpVal = OpInfo.CallOperandVal;
if (isa<ConstantFP>(OpVal) || isa<ConstantInt>(OpVal) ||
isa<ConstantVector>(OpVal)) {
OpInfo.CallOperand = DAG.getConstantPool(cast<Constant>(OpVal),
@@ -5572,17 +5576,16 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
return;
}
- std::vector<std::pair<SDValue, Value*> > StoresToEmit;
+ std::vector<std::pair<SDValue, const Value *> > StoresToEmit;
// Process indirect outputs, first output all of the flagged copies out of
// physregs.
for (unsigned i = 0, e = IndirectStoresToEmit.size(); i != e; ++i) {
RegsForValue &OutRegs = IndirectStoresToEmit[i].first;
- Value *Ptr = IndirectStoresToEmit[i].second;
+ const Value *Ptr = IndirectStoresToEmit[i].second;
SDValue OutVal = OutRegs.getCopyFromRegs(DAG, getCurDebugLoc(),
Chain, &Flag);
StoresToEmit.push_back(std::make_pair(OutVal, Ptr));
-
}
// Emit the non-flagged stores from the physregs.
@@ -5603,14 +5606,14 @@ void SelectionDAGBuilder::visitInlineAsm(CallSite CS) {
DAG.setRoot(Chain);
}
-void SelectionDAGBuilder::visitVAStart(CallInst &I) {
+void SelectionDAGBuilder::visitVAStart(const CallInst &I) {
DAG.setRoot(DAG.getNode(ISD::VASTART, getCurDebugLoc(),
MVT::Other, getRoot(),
getValue(I.getOperand(1)),
DAG.getSrcValue(I.getOperand(1))));
}
-void SelectionDAGBuilder::visitVAArg(VAArgInst &I) {
+void SelectionDAGBuilder::visitVAArg(const VAArgInst &I) {
SDValue V = DAG.getVAArg(TLI.getValueType(I.getType()), getCurDebugLoc(),
getRoot(), getValue(I.getOperand(0)),
DAG.getSrcValue(I.getOperand(0)));
@@ -5618,14 +5621,14 @@ void SelectionDAGBuilder::visitVAArg(VAArgInst &I) {
DAG.setRoot(V.getValue(1));
}
-void SelectionDAGBuilder::visitVAEnd(CallInst &I) {
+void SelectionDAGBuilder::visitVAEnd(const CallInst &I) {
DAG.setRoot(DAG.getNode(ISD::VAEND, getCurDebugLoc(),
MVT::Other, getRoot(),
getValue(I.getOperand(1)),
DAG.getSrcValue(I.getOperand(1))));
}
-void SelectionDAGBuilder::visitVACopy(CallInst &I) {
+void SelectionDAGBuilder::visitVACopy(const CallInst &I) {
DAG.setRoot(DAG.getNode(ISD::VACOPY, getCurDebugLoc(),
MVT::Other, getRoot(),
getValue(I.getOperand(1)),
@@ -5807,7 +5810,8 @@ SDValue TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
return SDValue();
}
-void SelectionDAGBuilder::CopyValueToVirtualRegister(Value *V, unsigned Reg) {