#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
-#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/DebugInfo.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
return true;
}
+ISD::NodeType ISD::getExtForLoadExtType(ISD::LoadExtType ExtType) {
+ switch (ExtType) {
+ case ISD::EXTLOAD:
+ return ISD::ANY_EXTEND;
+ case ISD::SEXTLOAD:
+ return ISD::SIGN_EXTEND;
+ case ISD::ZEXTLOAD:
+ return ISD::ZERO_EXTEND;
+ default:
+ break;
+ }
+
+ llvm_unreachable("Invalid LoadExtType");
+}
+
/// getSetCCSwappedOperands - Return the operation corresponding to (Y op X)
/// when given the operation for (X op Y).
ISD::CondCode ISD::getSetCCSwappedOperands(ISD::CondCode Operation) {
llvm_unreachable("Should only be used on nodes with operands");
default: break; // Normal nodes don't need extra info.
case ISD::TargetConstant:
- case ISD::Constant:
- ID.AddPointer(cast<ConstantSDNode>(N)->getConstantIntValue());
+ case ISD::Constant: {
+ const ConstantSDNode *C = cast<ConstantSDNode>(N);
+ ID.AddPointer(C->getConstantIntValue());
+ ID.AddBoolean(C->isOpaque());
break;
+ }
case ISD::TargetConstantFP:
case ISD::ConstantFP: {
ID.AddPointer(cast<ConstantFPSDNode>(N)->getConstantFPValue());
// EntryNode could meaningfully have debug info if we can find it...
SelectionDAG::SelectionDAG(const TargetMachine &tm, CodeGenOpt::Level OL)
- : TM(tm), TSI(*tm.getSelectionDAGInfo()), TTI(0), TLI(0), OptLevel(OL),
+ : TM(tm), TSI(*tm.getSelectionDAGInfo()), TLI(0), OptLevel(OL),
EntryNode(ISD::EntryToken, 0, DebugLoc(), getVTList(MVT::Other)),
Root(getEntryNode()), NewNodesMustHaveLegalTypes(false),
UpdateListeners(0) {
DbgInfo = new SDDbgInfo();
}
-void SelectionDAG::init(MachineFunction &mf, const TargetTransformInfo *tti,
- const TargetLowering *tli) {
+void SelectionDAG::init(MachineFunction &mf, const TargetLowering *tli) {
MF = &mf;
- TTI = tti;
TLI = tli;
Context = &mf.getFunction()->getContext();
}
return getNode(ISD::XOR, DL, VT, Val, NegOne);
}
-SDValue SelectionDAG::getConstant(uint64_t Val, EVT VT, bool isT) {
+SDValue SelectionDAG::getConstant(uint64_t Val, EVT VT, bool isT, bool isO) {
EVT EltVT = VT.getScalarType();
assert((EltVT.getSizeInBits() >= 64 ||
(uint64_t)((int64_t)Val >> EltVT.getSizeInBits()) + 1 < 2) &&
"getConstant with a uint64_t value that doesn't fit in the type!");
- return getConstant(APInt(EltVT.getSizeInBits(), Val), VT, isT);
+ return getConstant(APInt(EltVT.getSizeInBits(), Val), VT, isT, isO);
}
-SDValue SelectionDAG::getConstant(const APInt &Val, EVT VT, bool isT) {
- return getConstant(*ConstantInt::get(*Context, Val), VT, isT);
+SDValue SelectionDAG::getConstant(const APInt &Val, EVT VT, bool isT, bool isO)
+{
+ return getConstant(*ConstantInt::get(*Context, Val), VT, isT, isO);
}
-SDValue SelectionDAG::getConstant(const ConstantInt &Val, EVT VT, bool isT) {
+SDValue SelectionDAG::getConstant(const ConstantInt &Val, EVT VT, bool isT,
+ bool isO) {
assert(VT.isInteger() && "Cannot create FP integer constant!");
EVT EltVT = VT.getScalarType();
for (unsigned i = 0; i < ViaVecNumElts / VT.getVectorNumElements(); ++i) {
EltParts.push_back(getConstant(NewVal.lshr(i * ViaEltSizeInBits)
.trunc(ViaEltSizeInBits),
- ViaEltVT, isT));
+ ViaEltVT, isT, isO));
}
// EltParts is currently in little endian order. If we actually want
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opc, getVTList(EltVT), 0, 0);
ID.AddPointer(Elt);
+ ID.AddBoolean(isO);
void *IP = 0;
SDNode *N = NULL;
if ((N = CSEMap.FindNodeOrInsertPos(ID, IP)))
return SDValue(N, 0);
if (!N) {
- N = new (NodeAllocator) ConstantSDNode(isT, Elt, EltVT);
+ N = new (NodeAllocator) ConstantSDNode(isT, isO, Elt, EltVT);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
}
ConstantSDNode *Scalar1 = dyn_cast<ConstantSDNode>(Cst1);
ConstantSDNode *Scalar2 = dyn_cast<ConstantSDNode>(Cst2);
- if (Scalar1 && Scalar2) {
+ if (Scalar1 && Scalar2 && (Scalar1->isOpaque() || Scalar2->isOpaque()))
+ return SDValue();
+
+ if (Scalar1 && Scalar2)
// Scalar instruction.
Inputs.push_back(std::make_pair(Scalar1, Scalar2));
- } else {
+ else {
// For vectors extract each constant element into Inputs so we can constant
// fold them individually.
BuildVectorSDNode *BV1 = dyn_cast<BuildVectorSDNode>(Cst1);
if (!V1 || !V2) // Not a constant, bail.
return SDValue();
+ if (V1->isOpaque() || V2->isOpaque())
+ return SDValue();
+
// Avoid BUILD_VECTOR nodes that perform implicit truncation.
// FIXME: This is valid and could be handled by truncating the APInts.
if (V1->getValueType(0) != SVT || V2->getValueType(0) != SVT)
Val |= (uint64_t)(unsigned char)Str[i] << (NumVTBytes-i-1)*8;
}
- // If the "cost" of materializing the integer immediate is 1 or free, then
- // it is cost effective to turn the load into the immediate.
- const TargetTransformInfo *TTI = DAG.getTargetTransformInfo();
- if (TTI->getIntImmCost(Val, VT.getTypeForEVT(*DAG.getContext())) < 2)
+ // If the "cost" of materializing the integer immediate is less than the cost
+ // of a load, then it is cost effective to turn the load into the immediate.
+ Type *Ty = VT.getTypeForEVT(*DAG.getContext());
+ if (TLI.shouldConvertConstantLoadToIntImm(Val, Ty))
return DAG.getConstant(Val, VT);
return SDValue(0, 0);
}
DAG.getMachineFunction());
if (VT == MVT::Other) {
- if (DstAlign >= TLI.getDataLayout()->getPointerPrefAlignment() ||
- TLI.allowsUnalignedMemoryAccesses(VT)) {
+ unsigned AS = 0;
+ if (DstAlign >= TLI.getDataLayout()->getPointerPrefAlignment(AS) ||
+ TLI.allowsUnalignedMemoryAccesses(VT, AS)) {
VT = TLI.getPointerTy();
} else {
switch (DstAlign & 7) {
// FIXME: Only does this for 64-bit or more since we don't have proper
// cost model for unaligned load / store.
bool Fast;
+ unsigned AS = 0;
if (NumMemOps && AllowOverlap &&
VTSize >= 8 && NewVTSize < Size &&
- TLI.allowsUnalignedMemoryAccesses(VT, &Fast) && Fast)
+ TLI.allowsUnalignedMemoryAccesses(VT, AS, &Fast) && Fast)
VTSize = Size;
else {
VT = NewVT;
unsigned &SplatBitSize,
bool &HasAnyUndefs,
unsigned MinSplatBits,
- bool isBigEndian) {
+ bool isBigEndian) const {
EVT VT = getValueType(0);
assert(VT.isVector() && "Expected a vector type");
unsigned sz = VT.getSizeInBits();
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