namespace {
typedef SmallPtrSet<Instruction *, 16> SetOfInstrs;
-struct TypeIsSExt {
- Type *Ty;
- bool IsSExt;
- TypeIsSExt(Type *Ty, bool IsSExt) : Ty(Ty), IsSExt(IsSExt) {}
-};
+typedef PointerIntPair<Type *, 1, bool> TypeIsSExt;
typedef DenseMap<Instruction *, TypeIsSExt> InstrToOrigTy;
class TypePromotionTransaction;
/// multiple load/stores of the same address.
ValueMap<Value*, Value*> SunkAddrs;
- /// Keeps track of all truncates inserted for the current function.
- SetOfInstrs InsertedTruncsSet;
+ /// Keeps track of all instructions inserted for the current function.
+ SetOfInstrs InsertedInsts;
/// Keeps track of the type of the related instruction before their
/// promotion for the current function.
InstrToOrigTy PromotedInsts;
/// OptSize - True if optimizing for size.
bool OptSize;
+ /// DataLayout for the Function being processed.
+ const DataLayout *DL;
+
public:
static char ID; // Pass identification, replacement for typeid
explicit CodeGenPrepare(const TargetMachine *TM = nullptr)
- : FunctionPass(ID), TM(TM), TLI(nullptr), TTI(nullptr) {
+ : FunctionPass(ID), TM(TM), TLI(nullptr), TTI(nullptr), DL(nullptr) {
initializeCodeGenPreparePass(*PassRegistry::getPassRegistry());
}
bool runOnFunction(Function &F) override;
void EliminateMostlyEmptyBlock(BasicBlock *BB);
bool OptimizeBlock(BasicBlock &BB, bool& ModifiedDT);
bool OptimizeInst(Instruction *I, bool& ModifiedDT);
- bool OptimizeMemoryInst(Instruction *I, Value *Addr, Type *AccessTy);
+ bool OptimizeMemoryInst(Instruction *I, Value *Addr,
+ Type *AccessTy, unsigned AS);
bool OptimizeInlineAsmInst(CallInst *CS);
bool OptimizeCallInst(CallInst *CI, bool& ModifiedDT);
bool MoveExtToFormExtLoad(Instruction *&I);
if (skipOptnoneFunction(F))
return false;
+ DL = &F.getParent()->getDataLayout();
+
bool EverMadeChange = false;
// Clear per function information.
- InsertedTruncsSet.clear();
+ InsertedInsts.clear();
PromotedInsts.clear();
ModifiedDT = false;
TLI = TM->getSubtargetImpl(F)->getTargetLowering();
TLInfo = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
TTI = &getAnalysis<TargetTransformInfoWrapperPass>().getTTI(F);
+ // FIXME: Use Function::optForSize().
OptSize = F.hasFnAttribute(Attribute::OptimizeForSize);
/// This optimization identifies DIV instructions that can be
for (auto &U : AllRelocateCalls) {
GCRelocateOperands ThisRelocate(U);
IntrinsicInst *I = cast<IntrinsicInst>(U);
- auto K = std::make_pair(ThisRelocate.basePtrIndex(),
- ThisRelocate.derivedPtrIndex());
+ auto K = std::make_pair(ThisRelocate.getBasePtrIndex(),
+ ThisRelocate.getDerivedPtrIndex());
RelocateIdxMap.insert(std::make_pair(K, I));
}
for (auto &Item : RelocateIdxMap) {
GCRelocateOperands MasterRelocate(RelocatedBase);
GCRelocateOperands ThisRelocate(ToReplace);
- assert(ThisRelocate.basePtrIndex() == MasterRelocate.basePtrIndex() &&
+ assert(ThisRelocate.getBasePtrIndex() == MasterRelocate.getBasePtrIndex() &&
"Not relocating a derived object of the original base object");
- if (ThisRelocate.basePtrIndex() == ThisRelocate.derivedPtrIndex()) {
+ if (ThisRelocate.getBasePtrIndex() == ThisRelocate.getDerivedPtrIndex()) {
// A duplicate relocate call. TODO: coalesce duplicates.
continue;
}
- Value *Base = ThisRelocate.basePtr();
- auto Derived = dyn_cast<GetElementPtrInst>(ThisRelocate.derivedPtr());
+ Value *Base = ThisRelocate.getBasePtr();
+ auto Derived = dyn_cast<GetElementPtrInst>(ThisRelocate.getDerivedPtr());
if (!Derived || Derived->getPointerOperand() != Base)
continue;
continue;
// Create a Builder and replace the target callsite with a gep
- IRBuilder<> Builder(ToReplace);
+ assert(RelocatedBase->getNextNode() && "Should always have one since it's not a terminator");
+
+ // Insert after RelocatedBase
+ IRBuilder<> Builder(RelocatedBase->getNextNode());
Builder.SetCurrentDebugLocation(ToReplace->getDebugLoc());
+
+ // If gc_relocate does not match the actual type, cast it to the right type.
+ // In theory, there must be a bitcast after gc_relocate if the type does not
+ // match, and we should reuse it to get the derived pointer. But it could be
+ // cases like this:
+ // bb1:
+ // ...
+ // %g1 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(...)
+ // br label %merge
+ //
+ // bb2:
+ // ...
+ // %g2 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(...)
+ // br label %merge
+ //
+ // merge:
+ // %p1 = phi i8 addrspace(1)* [ %g1, %bb1 ], [ %g2, %bb2 ]
+ // %cast = bitcast i8 addrspace(1)* %p1 in to i32 addrspace(1)*
+ //
+ // In this case, we can not find the bitcast any more. So we insert a new bitcast
+ // no matter there is already one or not. In this way, we can handle all cases, and
+ // the extra bitcast should be optimized away in later passes.
+ Instruction *ActualRelocatedBase = RelocatedBase;
+ if (RelocatedBase->getType() != Base->getType()) {
+ ActualRelocatedBase =
+ cast<Instruction>(Builder.CreateBitCast(RelocatedBase, Base->getType()));
+ }
Value *Replacement = Builder.CreateGEP(
- Derived->getSourceElementType(), RelocatedBase, makeArrayRef(OffsetV));
+ Derived->getSourceElementType(), ActualRelocatedBase, makeArrayRef(OffsetV));
Instruction *ReplacementInst = cast<Instruction>(Replacement);
- ReplacementInst->removeFromParent();
- ReplacementInst->insertAfter(RelocatedBase);
Replacement->takeName(ToReplace);
- ToReplace->replaceAllUsesWith(Replacement);
+ // If the newly generated derived pointer's type does not match the original derived
+ // pointer's type, cast the new derived pointer to match it. Same reasoning as above.
+ Instruction *ActualReplacement = ReplacementInst;
+ if (ReplacementInst->getType() != ToReplace->getType()) {
+ ActualReplacement =
+ cast<Instruction>(Builder.CreateBitCast(ReplacementInst, ToReplace->getType()));
+ }
+ ToReplace->replaceAllUsesWith(ActualReplacement);
ToReplace->eraseFromParent();
MadeChange = true;
InsertedCast =
CastInst::Create(CI->getOpcode(), CI->getOperand(0), CI->getType(), "",
InsertPt);
- MadeChange = true;
}
// Replace a use of the cast with a use of the new cast.
TheUse = InsertedCast;
+ MadeChange = true;
++NumCastUses;
}
///
/// Return true if any changes are made.
///
-static bool OptimizeNoopCopyExpression(CastInst *CI, const TargetLowering &TLI){
+static bool OptimizeNoopCopyExpression(CastInst *CI, const TargetLowering &TLI,
+ const DataLayout &DL) {
// If this is a noop copy,
- EVT SrcVT = TLI.getValueType(CI->getOperand(0)->getType());
- EVT DstVT = TLI.getValueType(CI->getType());
+ EVT SrcVT = TLI.getValueType(DL, CI->getOperand(0)->getType());
+ EVT DstVT = TLI.getValueType(DL, CI->getType());
// This is an fp<->int conversion?
if (SrcVT.isInteger() != DstVT.isInteger())
CmpInst::Create(CI->getOpcode(),
CI->getPredicate(), CI->getOperand(0),
CI->getOperand(1), "", InsertPt);
- MadeChange = true;
}
// Replace a use of the cmp with a use of the new cmp.
TheUse = InsertedCmp;
+ MadeChange = true;
++NumCmpUses;
}
// If we removed all uses, nuke the cmp.
- if (CI->use_empty())
+ if (CI->use_empty()) {
CI->eraseFromParent();
+ MadeChange = true;
+ }
return MadeChange;
}
static bool
SinkShiftAndTruncate(BinaryOperator *ShiftI, Instruction *User, ConstantInt *CI,
DenseMap<BasicBlock *, BinaryOperator *> &InsertedShifts,
- const TargetLowering &TLI) {
+ const TargetLowering &TLI, const DataLayout &DL) {
BasicBlock *UserBB = User->getParent();
DenseMap<BasicBlock *, CastInst *> InsertedTruncs;
TruncInst *TruncI = dyn_cast<TruncInst>(User);
// approximation; some nodes' legality is determined by the
// operand or other means. There's no good way to find out though.
if (TLI.isOperationLegalOrCustom(
- ISDOpcode, TLI.getValueType(TruncUser->getType(), true)))
+ ISDOpcode, TLI.getValueType(DL, TruncUser->getType(), true)))
continue;
// Don't bother for PHI nodes.
/// instruction.
/// Return true if any changes are made.
static bool OptimizeExtractBits(BinaryOperator *ShiftI, ConstantInt *CI,
- const TargetLowering &TLI) {
+ const TargetLowering &TLI,
+ const DataLayout &DL) {
BasicBlock *DefBB = ShiftI->getParent();
/// Only insert instructions in each block once.
DenseMap<BasicBlock *, BinaryOperator *> InsertedShifts;
- bool shiftIsLegal = TLI.isTypeLegal(TLI.getValueType(ShiftI->getType()));
+ bool shiftIsLegal = TLI.isTypeLegal(TLI.getValueType(DL, ShiftI->getType()));
bool MadeChange = false;
for (Value::user_iterator UI = ShiftI->user_begin(), E = ShiftI->user_end();
if (isa<TruncInst>(User) && shiftIsLegal
// If the type of the truncate is legal, no trucate will be
// introduced in other basic blocks.
- && (!TLI.isTypeLegal(TLI.getValueType(User->getType()))))
+ &&
+ (!TLI.isTypeLegal(TLI.getValueType(DL, User->getType()))))
MadeChange =
- SinkShiftAndTruncate(ShiftI, User, CI, InsertedShifts, TLI);
+ SinkShiftAndTruncate(ShiftI, User, CI, InsertedShifts, TLI, DL);
continue;
}
return true;
}
- const DataLayout *TD = TLI ? TLI->getDataLayout() : nullptr;
-
// Align the pointer arguments to this call if the target thinks it's a good
// idea
unsigned MinSize, PrefAlign;
- if (TLI && TD && TLI->shouldAlignPointerArgs(CI, MinSize, PrefAlign)) {
+ if (TLI && TLI->shouldAlignPointerArgs(CI, MinSize, PrefAlign)) {
for (auto &Arg : CI->arg_operands()) {
// We want to align both objects whose address is used directly and
// objects whose address is used in casts and GEPs, though it only makes
// if size - offset meets the size threshold.
if (!Arg->getType()->isPointerTy())
continue;
- APInt Offset(TD->getPointerSizeInBits(
- cast<PointerType>(Arg->getType())->getAddressSpace()), 0);
- Value *Val = Arg->stripAndAccumulateInBoundsConstantOffsets(*TD, Offset);
+ APInt Offset(DL->getPointerSizeInBits(
+ cast<PointerType>(Arg->getType())->getAddressSpace()),
+ 0);
+ Value *Val = Arg->stripAndAccumulateInBoundsConstantOffsets(*DL, Offset);
uint64_t Offset2 = Offset.getLimitedValue();
+ if ((Offset2 & (PrefAlign-1)) != 0)
+ continue;
AllocaInst *AI;
- if ((Offset2 & (PrefAlign-1)) == 0 &&
- (AI = dyn_cast<AllocaInst>(Val)) &&
- AI->getAlignment() < PrefAlign &&
- TD->getTypeAllocSize(AI->getAllocatedType()) >= MinSize + Offset2)
+ if ((AI = dyn_cast<AllocaInst>(Val)) && AI->getAlignment() < PrefAlign &&
+ DL->getTypeAllocSize(AI->getAllocatedType()) >= MinSize + Offset2)
AI->setAlignment(PrefAlign);
- // TODO: Also align GlobalVariables
+ // Global variables can only be aligned if they are defined in this
+ // object (i.e. they are uniquely initialized in this object), and
+ // over-aligning global variables that have an explicit section is
+ // forbidden.
+ GlobalVariable *GV;
+ if ((GV = dyn_cast<GlobalVariable>(Val)) && GV->hasUniqueInitializer() &&
+ !GV->hasSection() && GV->getAlignment() < PrefAlign &&
+ DL->getTypeAllocSize(GV->getType()->getElementType()) >=
+ MinSize + Offset2)
+ GV->setAlignment(PrefAlign);
}
// If this is a memcpy (or similar) then we may be able to improve the
// alignment
if (MemIntrinsic *MI = dyn_cast<MemIntrinsic>(CI)) {
- unsigned Align = getKnownAlignment(MI->getDest(), *TD);
+ unsigned Align = getKnownAlignment(MI->getDest(), *DL);
if (MemTransferInst *MTI = dyn_cast<MemTransferInst>(MI))
- Align = std::min(Align, getKnownAlignment(MTI->getSource(), *TD));
+ Align = std::min(Align, getKnownAlignment(MTI->getSource(), *DL));
if (Align > MI->getAlignment())
MI->setAlignment(ConstantInt::get(MI->getAlignmentType(), Align));
}
}
return false;
}
+ case Intrinsic::aarch64_stlxr:
+ case Intrinsic::aarch64_stxr: {
+ ZExtInst *ExtVal = dyn_cast<ZExtInst>(CI->getArgOperand(0));
+ if (!ExtVal || !ExtVal->hasOneUse() ||
+ ExtVal->getParent() == CI->getParent())
+ return false;
+ // Sink a zext feeding stlxr/stxr before it, so it can be folded into it.
+ ExtVal->moveBefore(CI);
+ // Mark this instruction as "inserted by CGP", so that other
+ // optimizations don't touch it.
+ InsertedInsts.insert(ExtVal);
+ return true;
+ }
}
if (TLI) {
+ // Unknown address space.
+ // TODO: Target hook to pick which address space the intrinsic cares
+ // about?
+ unsigned AddrSpace = ~0u;
SmallVector<Value*, 2> PtrOps;
Type *AccessTy;
- if (TLI->GetAddrModeArguments(II, PtrOps, AccessTy))
+ if (TLI->GetAddrModeArguments(II, PtrOps, AccessTy, AddrSpace))
while (!PtrOps.empty())
- if (OptimizeMemoryInst(II, PtrOps.pop_back_val(), AccessTy))
+ if (OptimizeMemoryInst(II, PtrOps.pop_back_val(), AccessTy, AddrSpace))
return true;
}
}
Inst->removeFromParent();
}
- ~InstructionRemover() { delete Replacer; }
+ ~InstructionRemover() override { delete Replacer; }
/// \brief Really remove the instruction.
void commit() override { delete Inst; }
SmallVectorImpl<Instruction*> &AddrModeInsts;
const TargetMachine &TM;
const TargetLowering &TLI;
+ const DataLayout &DL;
/// AccessTy/MemoryInst - This is the type for the access (e.g. double) and
/// the memory instruction that we're computing this address for.
Type *AccessTy;
+ unsigned AddrSpace;
Instruction *MemoryInst;
/// AddrMode - This is the addressing mode that we're building up. This is
/// part of the return value of this addressing mode matching stuff.
ExtAddrMode &AddrMode;
- /// The truncate instruction inserted by other CodeGenPrepare optimizations.
- const SetOfInstrs &InsertedTruncs;
+ /// The instructions inserted by other CodeGenPrepare optimizations.
+ const SetOfInstrs &InsertedInsts;
/// A map from the instructions to their type before promotion.
InstrToOrigTy &PromotedInsts;
/// The ongoing transaction where every action should be registered.
bool IgnoreProfitability;
AddressingModeMatcher(SmallVectorImpl<Instruction *> &AMI,
- const TargetMachine &TM, Type *AT, Instruction *MI,
- ExtAddrMode &AM, const SetOfInstrs &InsertedTruncs,
+ const TargetMachine &TM, Type *AT, unsigned AS,
+ Instruction *MI, ExtAddrMode &AM,
+ const SetOfInstrs &InsertedInsts,
InstrToOrigTy &PromotedInsts,
TypePromotionTransaction &TPT)
: AddrModeInsts(AMI), TM(TM),
TLI(*TM.getSubtargetImpl(*MI->getParent()->getParent())
->getTargetLowering()),
- AccessTy(AT), MemoryInst(MI), AddrMode(AM),
- InsertedTruncs(InsertedTruncs), PromotedInsts(PromotedInsts), TPT(TPT) {
+ DL(MI->getModule()->getDataLayout()), AccessTy(AT), AddrSpace(AS),
+ MemoryInst(MI), AddrMode(AM), InsertedInsts(InsertedInsts),
+ PromotedInsts(PromotedInsts), TPT(TPT) {
IgnoreProfitability = false;
}
public:
/// Match - Find the maximal addressing mode that a load/store of V can fold,
/// give an access type of AccessTy. This returns a list of involved
/// instructions in AddrModeInsts.
- /// \p InsertedTruncs The truncate instruction inserted by other
- /// CodeGenPrepare
+ /// \p InsertedInsts The instructions inserted by other CodeGenPrepare
/// optimizations.
/// \p PromotedInsts maps the instructions to their type before promotion.
/// \p The ongoing transaction where every action should be registered.
- static ExtAddrMode Match(Value *V, Type *AccessTy,
+ static ExtAddrMode Match(Value *V, Type *AccessTy, unsigned AS,
Instruction *MemoryInst,
SmallVectorImpl<Instruction*> &AddrModeInsts,
const TargetMachine &TM,
- const SetOfInstrs &InsertedTruncs,
+ const SetOfInstrs &InsertedInsts,
InstrToOrigTy &PromotedInsts,
TypePromotionTransaction &TPT) {
ExtAddrMode Result;
- bool Success = AddressingModeMatcher(AddrModeInsts, TM, AccessTy,
- MemoryInst, Result, InsertedTruncs,
+ bool Success = AddressingModeMatcher(AddrModeInsts, TM, AccessTy, AS,
+ MemoryInst, Result, InsertedInsts,
PromotedInsts, TPT).MatchAddr(V, 0);
(void)Success; assert(Success && "Couldn't select *anything*?");
return Result;
TestAddrMode.ScaledReg = ScaleReg;
// If the new address isn't legal, bail out.
- if (!TLI.isLegalAddressingMode(TestAddrMode, AccessTy))
+ if (!TLI.isLegalAddressingMode(DL, TestAddrMode, AccessTy, AddrSpace))
return false;
// It was legal, so commit it.
// If this addressing mode is legal, commit it and remember that we folded
// this instruction.
- if (TLI.isLegalAddressingMode(TestAddrMode, AccessTy)) {
+ if (TLI.isLegalAddressingMode(DL, TestAddrMode, AccessTy, AddrSpace)) {
AddrModeInsts.push_back(cast<Instruction>(ScaleReg));
AddrMode = TestAddrMode;
return true;
/// \note \p Val is assumed to be the product of some type promotion.
/// Therefore if \p Val has an undefined state in \p TLI, this is assumed
/// to be legal, as the non-promoted value would have had the same state.
-static bool isPromotedInstructionLegal(const TargetLowering &TLI, Value *Val) {
+static bool isPromotedInstructionLegal(const TargetLowering &TLI,
+ const DataLayout &DL, Value *Val) {
Instruction *PromotedInst = dyn_cast<Instruction>(Val);
if (!PromotedInst)
return false;
return true;
// Otherwise, check if the promoted instruction is legal or not.
return TLI.isOperationLegalOrCustom(
- ISDOpcode, TLI.getValueType(PromotedInst->getType()));
+ ISDOpcode, TLI.getValueType(DL, PromotedInst->getType()));
}
/// \brief Hepler class to perform type promotion.
/// action to promote the operand of \p Ext instead of using Ext.
/// \return NULL if no promotable action is possible with the current
/// sign extension.
- /// \p InsertedTruncs keeps track of all the truncate instructions inserted by
- /// the others CodeGenPrepare optimizations. This information is important
+ /// \p InsertedInsts keeps track of all the instructions inserted by the
+ /// other CodeGenPrepare optimizations. This information is important
/// because we do not want to promote these instructions as CodeGenPrepare
/// will reinsert them later. Thus creating an infinite loop: create/remove.
/// \p PromotedInsts maps the instructions to their type before promotion.
- static Action getAction(Instruction *Ext, const SetOfInstrs &InsertedTruncs,
+ static Action getAction(Instruction *Ext, const SetOfInstrs &InsertedInsts,
const TargetLowering &TLI,
const InstrToOrigTy &PromotedInsts);
};
// #1 get the type of the operand and check the kind of the extended bits.
const Type *OpndType;
InstrToOrigTy::const_iterator It = PromotedInsts.find(Opnd);
- if (It != PromotedInsts.end() && It->second.IsSExt == IsSExt)
- OpndType = It->second.Ty;
+ if (It != PromotedInsts.end() && It->second.getInt() == IsSExt)
+ OpndType = It->second.getPointer();
else if ((IsSExt && isa<SExtInst>(Opnd)) || (!IsSExt && isa<ZExtInst>(Opnd)))
OpndType = Opnd->getOperand(0)->getType();
else
}
TypePromotionHelper::Action TypePromotionHelper::getAction(
- Instruction *Ext, const SetOfInstrs &InsertedTruncs,
+ Instruction *Ext, const SetOfInstrs &InsertedInsts,
const TargetLowering &TLI, const InstrToOrigTy &PromotedInsts) {
assert((isa<SExtInst>(Ext) || isa<ZExtInst>(Ext)) &&
"Unexpected instruction type");
// Do not promote if the operand has been added by codegenprepare.
// Otherwise, it means we are undoing an optimization that is likely to be
// redone, thus causing potential infinite loop.
- if (isa<TruncInst>(ExtOpnd) && InsertedTruncs.count(ExtOpnd))
+ if (isa<TruncInst>(ExtOpnd) && InsertedInsts.count(ExtOpnd))
return nullptr;
// SExt or Trunc instructions.
// The promotion is neutral but it may help folding the sign extension in
// loads for instance.
// Check that we did not create an illegal instruction.
- return isPromotedInstructionLegal(TLI, PromotedOperand);
+ return isPromotedInstructionLegal(TLI, DL, PromotedOperand);
}
/// MatchOperationAddr - Given an instruction or constant expr, see if we can
case Instruction::PtrToInt:
// PtrToInt is always a noop, as we know that the int type is pointer sized.
return MatchAddr(AddrInst->getOperand(0), Depth);
- case Instruction::IntToPtr:
+ case Instruction::IntToPtr: {
+ auto AS = AddrInst->getType()->getPointerAddressSpace();
+ auto PtrTy = MVT::getIntegerVT(DL.getPointerSizeInBits(AS));
// This inttoptr is a no-op if the integer type is pointer sized.
- if (TLI.getValueType(AddrInst->getOperand(0)->getType()) ==
- TLI.getPointerTy(AddrInst->getType()->getPointerAddressSpace()))
+ if (TLI.getValueType(DL, AddrInst->getOperand(0)->getType()) == PtrTy)
return MatchAddr(AddrInst->getOperand(0), Depth);
return false;
+ }
case Instruction::BitCast:
- case Instruction::AddrSpaceCast:
// BitCast is always a noop, and we can handle it as long as it is
// int->int or pointer->pointer (we don't want int<->fp or something).
if ((AddrInst->getOperand(0)->getType()->isPointerTy() ||
AddrInst->getOperand(0)->getType() != AddrInst->getType())
return MatchAddr(AddrInst->getOperand(0), Depth);
return false;
+ case Instruction::AddrSpaceCast: {
+ unsigned SrcAS
+ = AddrInst->getOperand(0)->getType()->getPointerAddressSpace();
+ unsigned DestAS = AddrInst->getType()->getPointerAddressSpace();
+ if (TLI.isNoopAddrSpaceCast(SrcAS, DestAS))
+ return MatchAddr(AddrInst->getOperand(0), Depth);
+ return false;
+ }
case Instruction::Add: {
// Check to see if we can merge in the RHS then the LHS. If so, we win.
ExtAddrMode BackupAddrMode = AddrMode;
unsigned VariableScale = 0;
int64_t ConstantOffset = 0;
- const DataLayout *TD = TLI.getDataLayout();
gep_type_iterator GTI = gep_type_begin(AddrInst);
for (unsigned i = 1, e = AddrInst->getNumOperands(); i != e; ++i, ++GTI) {
if (StructType *STy = dyn_cast<StructType>(*GTI)) {
- const StructLayout *SL = TD->getStructLayout(STy);
+ const StructLayout *SL = DL.getStructLayout(STy);
unsigned Idx =
cast<ConstantInt>(AddrInst->getOperand(i))->getZExtValue();
ConstantOffset += SL->getElementOffset(Idx);
} else {
- uint64_t TypeSize = TD->getTypeAllocSize(GTI.getIndexedType());
+ uint64_t TypeSize = DL.getTypeAllocSize(GTI.getIndexedType());
if (ConstantInt *CI = dyn_cast<ConstantInt>(AddrInst->getOperand(i))) {
ConstantOffset += CI->getSExtValue()*TypeSize;
} else if (TypeSize) { // Scales of zero don't do anything.
// just add it to the disp field and check validity.
if (VariableOperand == -1) {
AddrMode.BaseOffs += ConstantOffset;
- if (ConstantOffset == 0 || TLI.isLegalAddressingMode(AddrMode, AccessTy)){
+ if (ConstantOffset == 0 ||
+ TLI.isLegalAddressingMode(DL, AddrMode, AccessTy, AddrSpace)) {
// Check to see if we can fold the base pointer in too.
if (MatchAddr(AddrInst->getOperand(0), Depth+1))
return true;
// Try to move this ext out of the way of the addressing mode.
// Ask for a method for doing so.
TypePromotionHelper::Action TPH =
- TypePromotionHelper::getAction(Ext, InsertedTruncs, TLI, PromotedInsts);
+ TypePromotionHelper::getAction(Ext, InsertedInsts, TLI, PromotedInsts);
if (!TPH)
return false;
if (ConstantInt *CI = dyn_cast<ConstantInt>(Addr)) {
// Fold in immediates if legal for the target.
AddrMode.BaseOffs += CI->getSExtValue();
- if (TLI.isLegalAddressingMode(AddrMode, AccessTy))
+ if (TLI.isLegalAddressingMode(DL, AddrMode, AccessTy, AddrSpace))
return true;
AddrMode.BaseOffs -= CI->getSExtValue();
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(Addr)) {
// If this is a global variable, try to fold it into the addressing mode.
if (!AddrMode.BaseGV) {
AddrMode.BaseGV = GV;
- if (TLI.isLegalAddressingMode(AddrMode, AccessTy))
+ if (TLI.isLegalAddressingMode(DL, AddrMode, AccessTy, AddrSpace))
return true;
AddrMode.BaseGV = nullptr;
}
AddrMode.HasBaseReg = true;
AddrMode.BaseReg = Addr;
// Still check for legality in case the target supports [imm] but not [i+r].
- if (TLI.isLegalAddressingMode(AddrMode, AccessTy))
+ if (TLI.isLegalAddressingMode(DL, AddrMode, AccessTy, AddrSpace))
return true;
AddrMode.HasBaseReg = false;
AddrMode.BaseReg = nullptr;
if (AddrMode.Scale == 0) {
AddrMode.Scale = 1;
AddrMode.ScaledReg = Addr;
- if (TLI.isLegalAddressingMode(AddrMode, AccessTy))
+ if (TLI.isLegalAddressingMode(DL, AddrMode, AccessTy, AddrSpace))
return true;
AddrMode.Scale = 0;
AddrMode.ScaledReg = nullptr;
const TargetLowering *TLI = TM.getSubtargetImpl(*F)->getTargetLowering();
const TargetRegisterInfo *TRI = TM.getSubtargetImpl(*F)->getRegisterInfo();
TargetLowering::AsmOperandInfoVector TargetConstraints =
- TLI->ParseConstraints(TRI, ImmutableCallSite(CI));
+ TLI->ParseConstraints(F->getParent()->getDataLayout(), TRI,
+ ImmutableCallSite(CI));
for (unsigned i = 0, e = TargetConstraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
// Get the access type of this use. If the use isn't a pointer, we don't
// know what it accesses.
Value *Address = User->getOperand(OpNo);
- if (!Address->getType()->isPointerTy())
+ PointerType *AddrTy = dyn_cast<PointerType>(Address->getType());
+ if (!AddrTy)
return false;
- Type *AddressAccessTy = Address->getType()->getPointerElementType();
+ Type *AddressAccessTy = AddrTy->getElementType();
+ unsigned AS = AddrTy->getAddressSpace();
// Do a match against the root of this address, ignoring profitability. This
// will tell us if the addressing mode for the memory operation will
ExtAddrMode Result;
TypePromotionTransaction::ConstRestorationPt LastKnownGood =
TPT.getRestorationPoint();
- AddressingModeMatcher Matcher(MatchedAddrModeInsts, TM, AddressAccessTy,
- MemoryInst, Result, InsertedTruncs,
+ AddressingModeMatcher Matcher(MatchedAddrModeInsts, TM, AddressAccessTy, AS,
+ MemoryInst, Result, InsertedInsts,
PromotedInsts, TPT);
Matcher.IgnoreProfitability = true;
bool Success = Matcher.MatchAddr(Address, 0);
/// This method is used to optimize both load/store and inline asms with memory
/// operands.
bool CodeGenPrepare::OptimizeMemoryInst(Instruction *MemoryInst, Value *Addr,
- Type *AccessTy) {
+ Type *AccessTy, unsigned AddrSpace) {
Value *Repl = Addr;
// Try to collapse single-value PHI nodes. This is necessary to undo
// For a PHI node, push all of its incoming values.
if (PHINode *P = dyn_cast<PHINode>(V)) {
- for (unsigned i = 0, e = P->getNumIncomingValues(); i != e; ++i)
- worklist.push_back(P->getIncomingValue(i));
+ for (Value *IncValue : P->incoming_values())
+ worklist.push_back(IncValue);
continue;
}
// For non-PHIs, determine the addressing mode being computed.
SmallVector<Instruction*, 16> NewAddrModeInsts;
ExtAddrMode NewAddrMode = AddressingModeMatcher::Match(
- V, AccessTy, MemoryInst, NewAddrModeInsts, *TM, InsertedTruncsSet,
- PromotedInsts, TPT);
+ V, AccessTy, AddrSpace, MemoryInst, NewAddrModeInsts, *TM,
+ InsertedInsts, PromotedInsts, TPT);
// This check is broken into two cases with very similar code to avoid using
// getNumUses() as much as possible. Some values have a lot of uses, so
// prevents new inttoptr/ptrtoint pairs from degrading AA capabilities.
DEBUG(dbgs() << "CGP: SINKING nonlocal addrmode: " << AddrMode << " for "
<< *MemoryInst << "\n");
- Type *IntPtrTy = TLI->getDataLayout()->getIntPtrType(Addr->getType());
+ Type *IntPtrTy = DL->getIntPtrType(Addr->getType());
Value *ResultPtr = nullptr, *ResultIndex = nullptr;
// First, find the pointer.
} else {
DEBUG(dbgs() << "CGP: SINKING nonlocal addrmode: " << AddrMode << " for "
<< *MemoryInst << "\n");
- Type *IntPtrTy = TLI->getDataLayout()->getIntPtrType(Addr->getType());
+ Type *IntPtrTy = DL->getIntPtrType(Addr->getType());
Value *Result = nullptr;
// Start with the base register. Do this first so that subsequent address
const TargetRegisterInfo *TRI =
TM->getSubtargetImpl(*CS->getParent()->getParent())->getRegisterInfo();
- TargetLowering::AsmOperandInfoVector
- TargetConstraints = TLI->ParseConstraints(TRI, CS);
+ TargetLowering::AsmOperandInfoVector TargetConstraints =
+ TLI->ParseConstraints(*DL, TRI, CS);
unsigned ArgNo = 0;
for (unsigned i = 0, e = TargetConstraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
if (OpInfo.ConstraintType == TargetLowering::C_Memory &&
OpInfo.isIndirect) {
Value *OpVal = CS->getArgOperand(ArgNo++);
- MadeChange |= OptimizeMemoryInst(CS, OpVal, OpVal->getType());
+ MadeChange |= OptimizeMemoryInst(CS, OpVal, OpVal->getType(), ~0u);
} else if (OpInfo.Type == InlineAsm::isInput)
ArgNo++;
}
continue;
// Get the action to perform the promotion.
TypePromotionHelper::Action TPH = TypePromotionHelper::getAction(
- I, InsertedTruncsSet, *TLI, PromotedInsts);
+ I, InsertedInsts, *TLI, PromotedInsts);
// Check if we can promote.
if (!TPH)
continue;
TotalCreatedInstsCost -= ExtCost;
if (!StressExtLdPromotion &&
(TotalCreatedInstsCost > 1 ||
- !isPromotedInstructionLegal(*TLI, PromotedVal))) {
+ !isPromotedInstructionLegal(*TLI, *DL, PromotedVal))) {
// The promotion is not profitable, rollback to the previous state.
TPT.rollback(LastKnownGood);
continue;
if (!HasPromoted && LI->getParent() == I->getParent())
return false;
- EVT VT = TLI->getValueType(I->getType());
- EVT LoadVT = TLI->getValueType(LI->getType());
+ EVT VT = TLI->getValueType(*DL, I->getType());
+ EVT LoadVT = TLI->getValueType(*DL, LI->getType());
// If the load has other users and the truncate is not free, this probably
// isn't worthwhile.
if (!InsertedTrunc) {
BasicBlock::iterator InsertPt = UserBB->getFirstInsertionPt();
InsertedTrunc = new TruncInst(I, Src->getType(), "", InsertPt);
- InsertedTruncsSet.insert(InsertedTrunc);
+ InsertedInsts.insert(InsertedTrunc);
}
// Replace a use of the {s|z}ext source with a use of the result.
/// Assuming both extractelement and store can be combine, we get rid of the
/// transition.
class VectorPromoteHelper {
+ /// DataLayout associated with the current module.
+ const DataLayout &DL;
+
/// Used to perform some checks on the legality of vector operations.
const TargetLowering &TLI;
unsigned Align = ST->getAlignment();
// Check if this store is supported.
if (!TLI.allowsMisalignedMemoryAccesses(
- TLI.getValueType(ST->getValueOperand()->getType()), AS, Align)) {
+ TLI.getValueType(DL, ST->getValueOperand()->getType()), AS,
+ Align)) {
// If this is not supported, there is no way we can combine
// the extract with the store.
return false;
}
public:
- VectorPromoteHelper(const TargetLowering &TLI, const TargetTransformInfo &TTI,
- Instruction *Transition, unsigned CombineCost)
- : TLI(TLI), TTI(TTI), Transition(Transition),
+ VectorPromoteHelper(const DataLayout &DL, const TargetLowering &TLI,
+ const TargetTransformInfo &TTI, Instruction *Transition,
+ unsigned CombineCost)
+ : DL(DL), TLI(TLI), TTI(TTI), Transition(Transition),
StoreExtractCombineCost(CombineCost), CombineInst(nullptr) {
assert(Transition && "Do not know how to promote null");
}
return false;
return StressStoreExtract ||
TLI.isOperationLegalOrCustom(
- ISDOpcode, TLI.getValueType(getTransitionType(), true));
+ ISDOpcode, TLI.getValueType(DL, getTransitionType(), true));
}
/// \brief Check whether or not \p Use can be combined
// we do not do that for now.
BasicBlock *Parent = Inst->getParent();
DEBUG(dbgs() << "Found an interesting transition: " << *Inst << '\n');
- VectorPromoteHelper VPH(*TLI, *TTI, Inst, CombineCost);
+ VectorPromoteHelper VPH(*DL, *TLI, *TTI, Inst, CombineCost);
// If the transition has more than one use, assume this is not going to be
// beneficial.
while (Inst->hasOneUse()) {
}
bool CodeGenPrepare::OptimizeInst(Instruction *I, bool& ModifiedDT) {
+ // Bail out if we inserted the instruction to prevent optimizations from
+ // stepping on each other's toes.
+ if (InsertedInsts.count(I))
+ return false;
+
if (PHINode *P = dyn_cast<PHINode>(I)) {
// It is possible for very late stage optimizations (such as SimplifyCFG)
// to introduce PHI nodes too late to be cleaned up. If we detect such a
// trivial PHI, go ahead and zap it here.
- const DataLayout &DL = I->getModule()->getDataLayout();
- if (Value *V = SimplifyInstruction(P, DL, TLInfo, nullptr)) {
+ if (Value *V = SimplifyInstruction(P, *DL, TLInfo, nullptr)) {
P->replaceAllUsesWith(V);
P->eraseFromParent();
++NumPHIsElim;
if (isa<Constant>(CI->getOperand(0)))
return false;
- if (TLI && OptimizeNoopCopyExpression(CI, *TLI))
+ if (TLI && OptimizeNoopCopyExpression(CI, *TLI, *DL))
return true;
if (isa<ZExtInst>(I) || isa<SExtInst>(I)) {
/// Sink a zext or sext into its user blocks if the target type doesn't
/// fit in one register
- if (TLI && TLI->getTypeAction(CI->getContext(),
- TLI->getValueType(CI->getType())) ==
- TargetLowering::TypeExpandInteger) {
+ if (TLI &&
+ TLI->getTypeAction(CI->getContext(),
+ TLI->getValueType(*DL, CI->getType())) ==
+ TargetLowering::TypeExpandInteger) {
return SinkCast(CI);
} else {
bool MadeChange = MoveExtToFormExtLoad(I);
return OptimizeCmpExpression(CI);
if (LoadInst *LI = dyn_cast<LoadInst>(I)) {
- if (TLI)
- return OptimizeMemoryInst(I, I->getOperand(0), LI->getType());
+ if (TLI) {
+ unsigned AS = LI->getPointerAddressSpace();
+ return OptimizeMemoryInst(I, I->getOperand(0), LI->getType(), AS);
+ }
return false;
}
if (StoreInst *SI = dyn_cast<StoreInst>(I)) {
- if (TLI)
+ if (TLI) {
+ unsigned AS = SI->getPointerAddressSpace();
return OptimizeMemoryInst(I, SI->getOperand(1),
- SI->getOperand(0)->getType());
+ SI->getOperand(0)->getType(), AS);
+ }
return false;
}
BinOp->getOpcode() == Instruction::LShr)) {
ConstantInt *CI = dyn_cast<ConstantInt>(BinOp->getOperand(1));
if (TLI && CI && TLI->hasExtractBitsInsn())
- return OptimizeExtractBits(BinOp, CI, *TLI);
+ return OptimizeExtractBits(BinOp, CI, *TLI, *DL);
return false;
}
projects / oota-llvm.git / blobdiff