LCOV - code coverage report
Current view: top level - lib/IR - Function.cpp (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 652 726 89.8 %
Date: 2018-10-20 13:21:21 Functions: 83 93 89.2 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- Function.cpp - Implement the Global object classes -----------------===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : //
      10             : // This file implements the Function class for the IR library.
      11             : //
      12             : //===----------------------------------------------------------------------===//
      13             : 
      14             : #include "llvm/IR/Function.h"
      15             : #include "SymbolTableListTraitsImpl.h"
      16             : #include "llvm/ADT/ArrayRef.h"
      17             : #include "llvm/ADT/DenseSet.h"
      18             : #include "llvm/ADT/None.h"
      19             : #include "llvm/ADT/STLExtras.h"
      20             : #include "llvm/ADT/SmallString.h"
      21             : #include "llvm/ADT/SmallVector.h"
      22             : #include "llvm/ADT/StringExtras.h"
      23             : #include "llvm/ADT/StringRef.h"
      24             : #include "llvm/IR/Argument.h"
      25             : #include "llvm/IR/Attributes.h"
      26             : #include "llvm/IR/BasicBlock.h"
      27             : #include "llvm/IR/CallSite.h"
      28             : #include "llvm/IR/Constant.h"
      29             : #include "llvm/IR/Constants.h"
      30             : #include "llvm/IR/DerivedTypes.h"
      31             : #include "llvm/IR/GlobalValue.h"
      32             : #include "llvm/IR/InstIterator.h"
      33             : #include "llvm/IR/Instruction.h"
      34             : #include "llvm/IR/Instructions.h"
      35             : #include "llvm/IR/IntrinsicInst.h"
      36             : #include "llvm/IR/Intrinsics.h"
      37             : #include "llvm/IR/LLVMContext.h"
      38             : #include "llvm/IR/MDBuilder.h"
      39             : #include "llvm/IR/Metadata.h"
      40             : #include "llvm/IR/Module.h"
      41             : #include "llvm/IR/SymbolTableListTraits.h"
      42             : #include "llvm/IR/Type.h"
      43             : #include "llvm/IR/Use.h"
      44             : #include "llvm/IR/User.h"
      45             : #include "llvm/IR/Value.h"
      46             : #include "llvm/IR/ValueSymbolTable.h"
      47             : #include "llvm/Support/Casting.h"
      48             : #include "llvm/Support/Compiler.h"
      49             : #include "llvm/Support/ErrorHandling.h"
      50             : #include <algorithm>
      51             : #include <cassert>
      52             : #include <cstddef>
      53             : #include <cstdint>
      54             : #include <cstring>
      55             : #include <string>
      56             : 
      57             : using namespace llvm;
      58             : using ProfileCount = Function::ProfileCount;
      59             : 
      60             : // Explicit instantiations of SymbolTableListTraits since some of the methods
      61             : // are not in the public header file...
      62             : template class llvm::SymbolTableListTraits<BasicBlock>;
      63             : 
      64             : //===----------------------------------------------------------------------===//
      65             : // Argument Implementation
      66             : //===----------------------------------------------------------------------===//
      67             : 
      68     2126942 : Argument::Argument(Type *Ty, const Twine &Name, Function *Par, unsigned ArgNo)
      69     2126942 :     : Value(Ty, Value::ArgumentVal), Parent(Par), ArgNo(ArgNo) {
      70     2126942 :   setName(Name);
      71     2126942 : }
      72             : 
      73         343 : void Argument::setParent(Function *parent) {
      74         343 :   Parent = parent;
      75         343 : }
      76             : 
      77     1838312 : bool Argument::hasNonNullAttr() const {
      78     3676624 :   if (!getType()->isPointerTy()) return false;
      79     1838312 :   if (getParent()->hasParamAttribute(getArgNo(), Attribute::NonNull))
      80             :     return true;
      81     1904415 :   else if (getDereferenceableBytes() > 0 &&
      82       66160 :            !NullPointerIsDefined(getParent(),
      83             :                                  getType()->getPointerAddressSpace()))
      84       66154 :     return true;
      85             :   return false;
      86             : }
      87             : 
      88     4495130 : bool Argument::hasByValAttr() const {
      89     8990260 :   if (!getType()->isPointerTy()) return false;
      90     4447661 :   return hasAttribute(Attribute::ByVal);
      91             : }
      92             : 
      93        2049 : bool Argument::hasSwiftSelfAttr() const {
      94        2049 :   return getParent()->hasParamAttribute(getArgNo(), Attribute::SwiftSelf);
      95             : }
      96             : 
      97      660837 : bool Argument::hasSwiftErrorAttr() const {
      98      660837 :   return getParent()->hasParamAttribute(getArgNo(), Attribute::SwiftError);
      99             : }
     100             : 
     101       37019 : bool Argument::hasInAllocaAttr() const {
     102       74038 :   if (!getType()->isPointerTy()) return false;
     103       28025 :   return hasAttribute(Attribute::InAlloca);
     104             : }
     105             : 
     106      549692 : bool Argument::hasByValOrInAllocaAttr() const {
     107     1099384 :   if (!getType()->isPointerTy()) return false;
     108      527433 :   AttributeList Attrs = getParent()->getAttributes();
     109     1046487 :   return Attrs.hasParamAttribute(getArgNo(), Attribute::ByVal) ||
     110      519054 :          Attrs.hasParamAttribute(getArgNo(), Attribute::InAlloca);
     111             : }
     112             : 
     113     3519478 : unsigned Argument::getParamAlignment() const {
     114             :   assert(getType()->isPointerTy() && "Only pointers have alignments");
     115     3519478 :   return getParent()->getParamAlignment(getArgNo());
     116             : }
     117             : 
     118     1942248 : uint64_t Argument::getDereferenceableBytes() const {
     119             :   assert(getType()->isPointerTy() &&
     120             :          "Only pointers have dereferenceable bytes");
     121     1942248 :   return getParent()->getParamDereferenceableBytes(getArgNo());
     122             : }
     123             : 
     124       94024 : uint64_t Argument::getDereferenceableOrNullBytes() const {
     125             :   assert(getType()->isPointerTy() &&
     126             :          "Only pointers have dereferenceable bytes");
     127       94024 :   return getParent()->getParamDereferenceableOrNullBytes(getArgNo());
     128             : }
     129             : 
     130         657 : bool Argument::hasNestAttr() const {
     131        1314 :   if (!getType()->isPointerTy()) return false;
     132         598 :   return hasAttribute(Attribute::Nest);
     133             : }
     134             : 
     135     6945602 : bool Argument::hasNoAliasAttr() const {
     136    13891204 :   if (!getType()->isPointerTy()) return false;
     137     6718463 :   return hasAttribute(Attribute::NoAlias);
     138             : }
     139             : 
     140        8856 : bool Argument::hasNoCaptureAttr() const {
     141       17712 :   if (!getType()->isPointerTy()) return false;
     142        8856 :   return hasAttribute(Attribute::NoCapture);
     143             : }
     144             : 
     145     1555515 : bool Argument::hasStructRetAttr() const {
     146     3111030 :   if (!getType()->isPointerTy()) return false;
     147     1555473 :   return hasAttribute(Attribute::StructRet);
     148             : }
     149             : 
     150        9603 : bool Argument::hasReturnedAttr() const {
     151        9603 :   return hasAttribute(Attribute::Returned);
     152             : }
     153             : 
     154          73 : bool Argument::hasZExtAttr() const {
     155          73 :   return hasAttribute(Attribute::ZExt);
     156             : }
     157             : 
     158          93 : bool Argument::hasSExtAttr() const {
     159          93 :   return hasAttribute(Attribute::SExt);
     160             : }
     161             : 
     162       11597 : bool Argument::onlyReadsMemory() const {
     163       11597 :   AttributeList Attrs = getParent()->getAttributes();
     164       23054 :   return Attrs.hasParamAttribute(getArgNo(), Attribute::ReadOnly) ||
     165       11457 :          Attrs.hasParamAttribute(getArgNo(), Attribute::ReadNone);
     166             : }
     167             : 
     168          11 : void Argument::addAttrs(AttrBuilder &B) {
     169          11 :   AttributeList AL = getParent()->getAttributes();
     170          11 :   AL = AL.addParamAttributes(Parent->getContext(), getArgNo(), B);
     171          11 :   getParent()->setAttributes(AL);
     172          11 : }
     173             : 
     174       39038 : void Argument::addAttr(Attribute::AttrKind Kind) {
     175       39038 :   getParent()->addParamAttr(getArgNo(), Kind);
     176       39038 : }
     177             : 
     178           0 : void Argument::addAttr(Attribute Attr) {
     179           0 :   getParent()->addParamAttr(getArgNo(), Attr);
     180           0 : }
     181             : 
     182          24 : void Argument::removeAttr(Attribute::AttrKind Kind) {
     183          24 :   getParent()->removeParamAttr(getArgNo(), Kind);
     184          24 : }
     185             : 
     186    19770765 : bool Argument::hasAttribute(Attribute::AttrKind Kind) const {
     187    19770765 :   return getParent()->hasParamAttribute(getArgNo(), Kind);
     188             : }
     189             : 
     190             : //===----------------------------------------------------------------------===//
     191             : // Helper Methods in Function
     192             : //===----------------------------------------------------------------------===//
     193             : 
     194    53802240 : LLVMContext &Function::getContext() const {
     195    53802240 :   return getType()->getContext();
     196             : }
     197             : 
     198         560 : unsigned Function::getInstructionCount() const {
     199             :   unsigned NumInstrs = 0;
     200        1321 :   for (const BasicBlock &BB : BasicBlocks)
     201        2283 :     NumInstrs += std::distance(BB.instructionsWithoutDebug().begin(),
     202        1522 :                                BB.instructionsWithoutDebug().end());
     203         560 :   return NumInstrs;
     204             : }
     205             : 
     206           0 : Function *Function::Create(FunctionType *Ty, LinkageTypes Linkage,
     207             :                            const Twine &N, Module &M) {
     208           0 :   return Create(Ty, Linkage, M.getDataLayout().getProgramAddressSpace(), N, &M);
     209             : }
     210             : 
     211      102968 : void Function::removeFromParent() {
     212      102968 :   getParent()->getFunctionList().remove(getIterator());
     213      102968 : }
     214             : 
     215      113570 : void Function::eraseFromParent() {
     216      113570 :   getParent()->getFunctionList().erase(getIterator());
     217      113570 : }
     218             : 
     219             : //===----------------------------------------------------------------------===//
     220             : // Function Implementation
     221             : //===----------------------------------------------------------------------===//
     222             : 
     223             : static unsigned computeAddrSpace(unsigned AddrSpace, Module *M) {
     224             :   // If AS == -1 and we are passed a valid module pointer we place the function
     225             :   // in the program address space. Otherwise we default to AS0.
     226     1462990 :   if (AddrSpace == static_cast<unsigned>(-1))
     227     1032093 :     return M ? M->getDataLayout().getProgramAddressSpace() : 0;
     228             :   return AddrSpace;
     229             : }
     230             : 
     231     1462990 : Function::Function(FunctionType *Ty, LinkageTypes Linkage, unsigned AddrSpace,
     232     1462990 :                    const Twine &name, Module *ParentModule)
     233             :     : GlobalObject(Ty, Value::FunctionVal,
     234             :                    OperandTraits<Function>::op_begin(this), 0, Linkage, name,
     235             :                    computeAddrSpace(AddrSpace, ParentModule)),
     236     4388970 :       NumArgs(Ty->getNumParams()) {
     237             :   assert(FunctionType::isValidReturnType(getReturnType()) &&
     238             :          "invalid return type");
     239             :   setGlobalObjectSubClassData(0);
     240             : 
     241             :   // We only need a symbol table for a function if the context keeps value names
     242     1462990 :   if (!getContext().shouldDiscardValueNames())
     243      555518 :     SymTab = make_unique<ValueSymbolTable>();
     244             : 
     245             :   // If the function has arguments, mark them as lazily built.
     246     1462990 :   if (Ty->getNumParams())
     247             :     setValueSubclassData(1);   // Set the "has lazy arguments" bit.
     248             : 
     249     1462990 :   if (ParentModule)
     250     1375470 :     ParentModule->getFunctionList().push_back(this);
     251             : 
     252     1462990 :   HasLLVMReservedName = getName().startswith("llvm.");
     253             :   // Ensure intrinsics have the right parameter attributes.
     254             :   // Note, the IntID field will have been set in Value::setName if this function
     255             :   // name is a valid intrinsic ID.
     256     1462990 :   if (IntID)
     257      105620 :     setAttributes(Intrinsic::getAttributes(getContext(), IntID));
     258     1462990 : }
     259             : 
     260     1167263 : Function::~Function() {
     261     1167264 :   dropAllReferences();    // After this it is safe to delete instructions.
     262             : 
     263             :   // Delete all of the method arguments and unlink from symbol table...
     264     1167264 :   if (Arguments)
     265      959931 :     clearArguments();
     266             : 
     267             :   // Remove the function from the on-the-side GC table.
     268     1167264 :   clearGC();
     269     1167264 : }
     270             : 
     271     1140203 : void Function::BuildLazyArguments() const {
     272             :   // Create the arguments vector, all arguments start out unnamed.
     273             :   auto *FT = getFunctionType();
     274     1140203 :   if (NumArgs > 0) {
     275     1140203 :     Arguments = std::allocator<Argument>().allocate(NumArgs);
     276     3248171 :     for (unsigned i = 0, e = NumArgs; i != e; ++i) {
     277     2107968 :       Type *ArgTy = FT->getParamType(i);
     278             :       assert(!ArgTy->isVoidTy() && "Cannot have void typed arguments!");
     279     2107968 :       new (Arguments + i) Argument(ArgTy, "", const_cast<Function *>(this), i);
     280             :     }
     281             :   }
     282             : 
     283             :   // Clear the lazy arguments bit.
     284     1140203 :   unsigned SDC = getSubclassDataFromValue();
     285     1140203 :   const_cast<Function*>(this)->setValueSubclassData(SDC &= ~(1<<0));
     286             :   assert(!hasLazyArguments());
     287     1140203 : }
     288             : 
     289             : static MutableArrayRef<Argument> makeArgArray(Argument *Args, size_t Count) {
     290             :   return MutableArrayRef<Argument>(Args, Count);
     291             : }
     292             : 
     293      960917 : void Function::clearArguments() {
     294     2714506 :   for (Argument &A : makeArgArray(Arguments, NumArgs)) {
     295     3507178 :     A.setName("");
     296             :     A.~Argument();
     297             :   }
     298      960917 :   std::allocator<Argument>().deallocate(Arguments, NumArgs);
     299      960917 :   Arguments = nullptr;
     300      960917 : }
     301             : 
     302        1222 : void Function::stealArgumentListFrom(Function &Src) {
     303             :   assert(isDeclaration() && "Expected no references to current arguments");
     304             : 
     305             :   // Drop the current arguments, if any, and set the lazy argument bit.
     306        1222 :   if (!hasLazyArguments()) {
     307             :     assert(llvm::all_of(makeArgArray(Arguments, NumArgs),
     308             :                         [](const Argument &A) { return A.use_empty(); }) &&
     309             :            "Expected arguments to be unused in declaration");
     310         986 :     clearArguments();
     311         986 :     setValueSubclassData(getSubclassDataFromValue() | (1 << 0));
     312             :   }
     313             : 
     314             :   // Nothing to steal if Src has lazy arguments.
     315        1222 :   if (Src.hasLazyArguments())
     316             :     return;
     317             : 
     318             :   // Steal arguments from Src, and fix the lazy argument bits.
     319             :   assert(arg_size() == Src.arg_size());
     320        1220 :   Arguments = Src.Arguments;
     321        1220 :   Src.Arguments = nullptr;
     322        1563 :   for (Argument &A : makeArgArray(Arguments, NumArgs)) {
     323             :     // FIXME: This does the work of transferNodesFromList inefficiently.
     324             :     SmallString<128> Name;
     325         343 :     if (A.hasName())
     326         211 :       Name = A.getName();
     327         343 :     if (!Name.empty())
     328         422 :       A.setName("");
     329         343 :     A.setParent(this);
     330         343 :     if (!Name.empty())
     331         422 :       A.setName(Name);
     332             :   }
     333             : 
     334        1220 :   setValueSubclassData(getSubclassDataFromValue() & ~(1 << 0));
     335             :   assert(!hasLazyArguments());
     336        1220 :   Src.setValueSubclassData(Src.getSubclassDataFromValue() | (1 << 0));
     337             : }
     338             : 
     339             : // dropAllReferences() - This function causes all the subinstructions to "let
     340             : // go" of all references that they are maintaining.  This allows one to
     341             : // 'delete' a whole class at a time, even though there may be circular
     342             : // references... first all references are dropped, and all use counts go to
     343             : // zero.  Then everything is deleted for real.  Note that no operations are
     344             : // valid on an object that has "dropped all references", except operator
     345             : // delete.
     346             : //
     347     1694892 : void Function::dropAllReferences() {
     348             :   setIsMaterializable(false);
     349             : 
     350     3614662 :   for (BasicBlock &BB : *this)
     351     1919770 :     BB.dropAllReferences();
     352             : 
     353             :   // Delete all basic blocks. They are now unused, except possibly by
     354             :   // blockaddresses, but BasicBlock's destructor takes care of those.
     355     3614662 :   while (!BasicBlocks.empty())
     356     1919770 :     BasicBlocks.begin()->eraseFromParent();
     357             : 
     358             :   // Drop uses of any optional data (real or placeholder).
     359     1694892 :   if (getNumOperands()) {
     360       73388 :     User::dropAllReferences();
     361             :     setNumHungOffUseOperands(0);
     362       73388 :     setValueSubclassData(getSubclassDataFromValue() & ~0xe);
     363             :   }
     364             : 
     365             :   // Metadata is stored in a side-table.
     366     1694892 :   clearMetadata();
     367     1694892 : }
     368             : 
     369      304937 : void Function::addAttribute(unsigned i, Attribute::AttrKind Kind) {
     370      304937 :   AttributeList PAL = getAttributes();
     371      304937 :   PAL = PAL.addAttribute(getContext(), i, Kind);
     372             :   setAttributes(PAL);
     373      304937 : }
     374             : 
     375      861129 : void Function::addAttribute(unsigned i, Attribute Attr) {
     376      861129 :   AttributeList PAL = getAttributes();
     377      861129 :   PAL = PAL.addAttribute(getContext(), i, Attr);
     378             :   setAttributes(PAL);
     379      861129 : }
     380             : 
     381     1641336 : void Function::addAttributes(unsigned i, const AttrBuilder &Attrs) {
     382     1641336 :   AttributeList PAL = getAttributes();
     383     1641336 :   PAL = PAL.addAttributes(getContext(), i, Attrs);
     384             :   setAttributes(PAL);
     385     1641336 : }
     386             : 
     387       41463 : void Function::addParamAttr(unsigned ArgNo, Attribute::AttrKind Kind) {
     388       41463 :   AttributeList PAL = getAttributes();
     389       41463 :   PAL = PAL.addParamAttribute(getContext(), ArgNo, Kind);
     390             :   setAttributes(PAL);
     391       41463 : }
     392             : 
     393           0 : void Function::addParamAttr(unsigned ArgNo, Attribute Attr) {
     394           0 :   AttributeList PAL = getAttributes();
     395           0 :   PAL = PAL.addParamAttribute(getContext(), ArgNo, Attr);
     396             :   setAttributes(PAL);
     397           0 : }
     398             : 
     399           0 : void Function::addParamAttrs(unsigned ArgNo, const AttrBuilder &Attrs) {
     400           0 :   AttributeList PAL = getAttributes();
     401           0 :   PAL = PAL.addParamAttributes(getContext(), ArgNo, Attrs);
     402             :   setAttributes(PAL);
     403           0 : }
     404             : 
     405      558508 : void Function::removeAttribute(unsigned i, Attribute::AttrKind Kind) {
     406      558508 :   AttributeList PAL = getAttributes();
     407      558508 :   PAL = PAL.removeAttribute(getContext(), i, Kind);
     408             :   setAttributes(PAL);
     409      558508 : }
     410             : 
     411          50 : void Function::removeAttribute(unsigned i, StringRef Kind) {
     412          50 :   AttributeList PAL = getAttributes();
     413          50 :   PAL = PAL.removeAttribute(getContext(), i, Kind);
     414             :   setAttributes(PAL);
     415          50 : }
     416             : 
     417       27832 : void Function::removeAttributes(unsigned i, const AttrBuilder &Attrs) {
     418       27832 :   AttributeList PAL = getAttributes();
     419       27832 :   PAL = PAL.removeAttributes(getContext(), i, Attrs);
     420             :   setAttributes(PAL);
     421       27832 : }
     422             : 
     423          31 : void Function::removeParamAttr(unsigned ArgNo, Attribute::AttrKind Kind) {
     424          31 :   AttributeList PAL = getAttributes();
     425          31 :   PAL = PAL.removeParamAttribute(getContext(), ArgNo, Kind);
     426             :   setAttributes(PAL);
     427          31 : }
     428             : 
     429           0 : void Function::removeParamAttr(unsigned ArgNo, StringRef Kind) {
     430           0 :   AttributeList PAL = getAttributes();
     431           0 :   PAL = PAL.removeParamAttribute(getContext(), ArgNo, Kind);
     432             :   setAttributes(PAL);
     433           0 : }
     434             : 
     435           0 : void Function::removeParamAttrs(unsigned ArgNo, const AttrBuilder &Attrs) {
     436           0 :   AttributeList PAL = getAttributes();
     437           0 :   PAL = PAL.removeParamAttributes(getContext(), ArgNo, Attrs);
     438             :   setAttributes(PAL);
     439           0 : }
     440             : 
     441           0 : void Function::addDereferenceableAttr(unsigned i, uint64_t Bytes) {
     442           0 :   AttributeList PAL = getAttributes();
     443           0 :   PAL = PAL.addDereferenceableAttr(getContext(), i, Bytes);
     444             :   setAttributes(PAL);
     445           0 : }
     446             : 
     447           0 : void Function::addDereferenceableParamAttr(unsigned ArgNo, uint64_t Bytes) {
     448           0 :   AttributeList PAL = getAttributes();
     449           0 :   PAL = PAL.addDereferenceableParamAttr(getContext(), ArgNo, Bytes);
     450             :   setAttributes(PAL);
     451           0 : }
     452             : 
     453           0 : void Function::addDereferenceableOrNullAttr(unsigned i, uint64_t Bytes) {
     454           0 :   AttributeList PAL = getAttributes();
     455           0 :   PAL = PAL.addDereferenceableOrNullAttr(getContext(), i, Bytes);
     456             :   setAttributes(PAL);
     457           0 : }
     458             : 
     459           0 : void Function::addDereferenceableOrNullParamAttr(unsigned ArgNo,
     460             :                                                  uint64_t Bytes) {
     461           0 :   AttributeList PAL = getAttributes();
     462           0 :   PAL = PAL.addDereferenceableOrNullParamAttr(getContext(), ArgNo, Bytes);
     463             :   setAttributes(PAL);
     464           0 : }
     465             : 
     466         967 : const std::string &Function::getGC() const {
     467             :   assert(hasGC() && "Function has no collector");
     468         967 :   return getContext().getGC(*this);
     469             : }
     470             : 
     471         521 : void Function::setGC(std::string Str) {
     472         521 :   setValueSubclassDataBit(14, !Str.empty());
     473        1042 :   getContext().setGC(*this, std::move(Str));
     474         521 : }
     475             : 
     476     1170532 : void Function::clearGC() {
     477     1170532 :   if (!hasGC())
     478             :     return;
     479         521 :   getContext().deleteGC(*this);
     480         521 :   setValueSubclassDataBit(14, false);
     481             : }
     482             : 
     483             : /// Copy all additional attributes (those not needed to create a Function) from
     484             : /// the Function Src to this one.
     485        3269 : void Function::copyAttributesFrom(const Function *Src) {
     486        3269 :   GlobalObject::copyAttributesFrom(Src);
     487             :   setCallingConv(Src->getCallingConv());
     488             :   setAttributes(Src->getAttributes());
     489        3269 :   if (Src->hasGC())
     490           3 :     setGC(Src->getGC());
     491             :   else
     492        3268 :     clearGC();
     493        3269 :   if (Src->hasPersonalityFn())
     494         142 :     setPersonalityFn(Src->getPersonalityFn());
     495        3269 :   if (Src->hasPrefixData())
     496           0 :     setPrefixData(Src->getPrefixData());
     497        3269 :   if (Src->hasPrologueData())
     498           2 :     setPrologueData(Src->getPrologueData());
     499        3269 : }
     500             : 
     501             : /// Table of string intrinsic names indexed by enum value.
     502             : static const char * const IntrinsicNameTable[] = {
     503             :   "not_intrinsic",
     504             : #define GET_INTRINSIC_NAME_TABLE
     505             : #include "llvm/IR/IntrinsicImpl.inc"
     506             : #undef GET_INTRINSIC_NAME_TABLE
     507             : };
     508             : 
     509             : /// Table of per-target intrinsic name tables.
     510             : #define GET_INTRINSIC_TARGET_DATA
     511             : #include "llvm/IR/IntrinsicImpl.inc"
     512             : #undef GET_INTRINSIC_TARGET_DATA
     513             : 
     514             : /// Find the segment of \c IntrinsicNameTable for intrinsics with the same
     515             : /// target as \c Name, or the generic table if \c Name is not target specific.
     516             : ///
     517             : /// Returns the relevant slice of \c IntrinsicNameTable
     518      111156 : static ArrayRef<const char *> findTargetSubtable(StringRef Name) {
     519             :   assert(Name.startswith("llvm."));
     520             : 
     521             :   ArrayRef<IntrinsicTargetInfo> Targets(TargetInfos);
     522             :   // Drop "llvm." and take the first dotted component. That will be the target
     523             :   // if this is target specific.
     524      111156 :   StringRef Target = Name.drop_front(5).split('.').first;
     525             :   auto It = std::lower_bound(Targets.begin(), Targets.end(), Target,
     526             :                              [](const IntrinsicTargetInfo &TI,
     527           0 :                                 StringRef Target) { return TI.Name < Target; });
     528             :   // We've either found the target or just fall back to the generic set, which
     529             :   // is always first.
     530      111156 :   const auto &TI = It != Targets.end() && It->Name == Target ? *It : Targets[0];
     531      111156 :   return makeArrayRef(&IntrinsicNameTable[1] + TI.Offset, TI.Count);
     532             : }
     533             : 
     534             : /// This does the actual lookup of an intrinsic ID which
     535             : /// matches the given function name.
     536      111156 : Intrinsic::ID Function::lookupIntrinsicID(StringRef Name) {
     537      111156 :   ArrayRef<const char *> NameTable = findTargetSubtable(Name);
     538      111156 :   int Idx = Intrinsic::lookupLLVMIntrinsicByName(NameTable, Name);
     539      111156 :   if (Idx == -1)
     540             :     return Intrinsic::not_intrinsic;
     541             : 
     542             :   // Intrinsic IDs correspond to the location in IntrinsicNameTable, but we have
     543             :   // an index into a sub-table.
     544      106522 :   int Adjust = NameTable.data() - IntrinsicNameTable;
     545      106522 :   Intrinsic::ID ID = static_cast<Intrinsic::ID>(Idx + Adjust);
     546             : 
     547             :   // If the intrinsic is not overloaded, require an exact match. If it is
     548             :   // overloaded, require either exact or prefix match.
     549      213044 :   const auto MatchSize = strlen(NameTable[Idx]);
     550             :   assert(Name.size() >= MatchSize && "Expected either exact or prefix match");
     551             :   bool IsExactMatch = Name.size() == MatchSize;
     552      106522 :   return IsExactMatch || isOverloaded(ID) ? ID : Intrinsic::not_intrinsic;
     553             : }
     554             : 
     555     1465796 : void Function::recalculateIntrinsicID() {
     556     1465796 :   StringRef Name = getName();
     557             :   if (!Name.startswith("llvm.")) {
     558     1354710 :     HasLLVMReservedName = false;
     559     1354710 :     IntID = Intrinsic::not_intrinsic;
     560     1354710 :     return;
     561             :   }
     562      111086 :   HasLLVMReservedName = true;
     563      111086 :   IntID = lookupIntrinsicID(Name);
     564             : }
     565             : 
     566             : /// Returns a stable mangling for the type specified for use in the name
     567             : /// mangling scheme used by 'any' types in intrinsic signatures.  The mangling
     568             : /// of named types is simply their name.  Manglings for unnamed types consist
     569             : /// of a prefix ('p' for pointers, 'a' for arrays, 'f_' for functions)
     570             : /// combined with the mangling of their component types.  A vararg function
     571             : /// type will have a suffix of 'vararg'.  Since function types can contain
     572             : /// other function types, we close a function type mangling with suffix 'f'
     573             : /// which can't be confused with it's prefix.  This ensures we don't have
     574             : /// collisions between two unrelated function types. Otherwise, you might
     575             : /// parse ffXX as f(fXX) or f(fX)X.  (X is a placeholder for any other type.)
     576             : ///
     577     1468944 : static std::string getMangledTypeStr(Type* Ty) {
     578             :   std::string Result;
     579             :   if (PointerType* PTyp = dyn_cast<PointerType>(Ty)) {
     580      975920 :     Result += "p" + utostr(PTyp->getAddressSpace()) +
     581      975920 :       getMangledTypeStr(PTyp->getElementType());
     582             :   } else if (ArrayType* ATyp = dyn_cast<ArrayType>(Ty)) {
     583          22 :     Result += "a" + utostr(ATyp->getNumElements()) +
     584          22 :       getMangledTypeStr(ATyp->getElementType());
     585             :   } else if (StructType *STyp = dyn_cast<StructType>(Ty)) {
     586         218 :     if (!STyp->isLiteral()) {
     587             :       Result += "s_";
     588         200 :       Result += STyp->getName();
     589             :     } else {
     590             :       Result += "sl_";
     591          46 :       for (auto Elem : STyp->elements())
     592          56 :         Result += getMangledTypeStr(Elem);
     593             :     }
     594             :     // Ensure nested structs are distinguishable.
     595             :     Result += "s";
     596             :   } else if (FunctionType *FT = dyn_cast<FunctionType>(Ty)) {
     597        3609 :     Result += "f_" + getMangledTypeStr(FT->getReturnType());
     598        2786 :     for (size_t i = 0; i < FT->getNumParams(); i++)
     599         570 :       Result += getMangledTypeStr(FT->getParamType(i));
     600        1203 :     if (FT->isVarArg())
     601             :       Result += "vararg";
     602             :     // Ensure nested function types are distinguishable.
     603             :     Result += "f";
     604      979552 :   } else if (isa<VectorType>(Ty)) {
     605      192976 :     Result += "v" + utostr(Ty->getVectorNumElements()) +
     606      289464 :       getMangledTypeStr(Ty->getVectorElementType());
     607             :   } else if (Ty) {
     608      883064 :     switch (Ty->getTypeID()) {
     609           0 :     default: llvm_unreachable("Unhandled type");
     610             :     case Type::VoidTyID:      Result += "isVoid";   break;
     611             :     case Type::MetadataTyID:  Result += "Metadata"; break;
     612             :     case Type::HalfTyID:      Result += "f16";      break;
     613             :     case Type::FloatTyID:     Result += "f32";      break;
     614             :     case Type::DoubleTyID:    Result += "f64";      break;
     615             :     case Type::X86_FP80TyID:  Result += "f80";      break;
     616             :     case Type::FP128TyID:     Result += "f128";     break;
     617             :     case Type::PPC_FP128TyID: Result += "ppcf128";  break;
     618             :     case Type::X86_MMXTyID:   Result += "x86mmx";   break;
     619      784953 :     case Type::IntegerTyID:
     620     1569906 :       Result += "i" + utostr(cast<IntegerType>(Ty)->getBitWidth());
     621      784953 :       break;
     622             :     }
     623             :   }
     624     1468944 :   return Result;
     625             : }
     626             : 
     627     3513695 : StringRef Intrinsic::getName(ID id) {
     628             :   assert(id < num_intrinsics && "Invalid intrinsic ID!");
     629             :   assert(!isOverloaded(id) &&
     630             :          "This version of getName does not support overloading");
     631     3513695 :   return IntrinsicNameTable[id];
     632             : }
     633             : 
     634     3250745 : std::string Intrinsic::getName(ID id, ArrayRef<Type*> Tys) {
     635             :   assert(id < num_intrinsics && "Invalid intrinsic ID!");
     636     3250745 :   std::string Result(IntrinsicNameTable[id]);
     637     4133809 :   for (Type *Ty : Tys) {
     638     1766128 :     Result += "." + getMangledTypeStr(Ty);
     639             :   }
     640     3250745 :   return Result;
     641             : }
     642             : 
     643             : /// IIT_Info - These are enumerators that describe the entries returned by the
     644             : /// getIntrinsicInfoTableEntries function.
     645             : ///
     646             : /// NOTE: This must be kept in synch with the copy in TblGen/IntrinsicEmitter!
     647             : enum IIT_Info {
     648             :   // Common values should be encoded with 0-15.
     649             :   IIT_Done = 0,
     650             :   IIT_I1   = 1,
     651             :   IIT_I8   = 2,
     652             :   IIT_I16  = 3,
     653             :   IIT_I32  = 4,
     654             :   IIT_I64  = 5,
     655             :   IIT_F16  = 6,
     656             :   IIT_F32  = 7,
     657             :   IIT_F64  = 8,
     658             :   IIT_V2   = 9,
     659             :   IIT_V4   = 10,
     660             :   IIT_V8   = 11,
     661             :   IIT_V16  = 12,
     662             :   IIT_V32  = 13,
     663             :   IIT_PTR  = 14,
     664             :   IIT_ARG  = 15,
     665             : 
     666             :   // Values from 16+ are only encodable with the inefficient encoding.
     667             :   IIT_V64  = 16,
     668             :   IIT_MMX  = 17,
     669             :   IIT_TOKEN = 18,
     670             :   IIT_METADATA = 19,
     671             :   IIT_EMPTYSTRUCT = 20,
     672             :   IIT_STRUCT2 = 21,
     673             :   IIT_STRUCT3 = 22,
     674             :   IIT_STRUCT4 = 23,
     675             :   IIT_STRUCT5 = 24,
     676             :   IIT_EXTEND_ARG = 25,
     677             :   IIT_TRUNC_ARG = 26,
     678             :   IIT_ANYPTR = 27,
     679             :   IIT_V1   = 28,
     680             :   IIT_VARARG = 29,
     681             :   IIT_HALF_VEC_ARG = 30,
     682             :   IIT_SAME_VEC_WIDTH_ARG = 31,
     683             :   IIT_PTR_TO_ARG = 32,
     684             :   IIT_PTR_TO_ELT = 33,
     685             :   IIT_VEC_OF_ANYPTRS_TO_ELT = 34,
     686             :   IIT_I128 = 35,
     687             :   IIT_V512 = 36,
     688             :   IIT_V1024 = 37,
     689             :   IIT_STRUCT6 = 38,
     690             :   IIT_STRUCT7 = 39,
     691             :   IIT_STRUCT8 = 40,
     692             :   IIT_F128 = 41
     693             : };
     694             : 
     695    18033200 : static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
     696             :                       SmallVectorImpl<Intrinsic::IITDescriptor> &OutputTable) {
     697             :   using namespace Intrinsic;
     698             : 
     699    18033200 :   IIT_Info Info = IIT_Info(Infos[NextElt++]);
     700             :   unsigned StructElts = 2;
     701             : 
     702    18033200 :   switch (Info) {
     703     2843271 :   case IIT_Done:
     704     2843271 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Void, 0));
     705     2843271 :     return;
     706        4158 :   case IIT_VARARG:
     707        4158 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::VarArg, 0));
     708        4158 :     return;
     709       34847 :   case IIT_MMX:
     710       34847 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::MMX, 0));
     711       34847 :     return;
     712        4214 :   case IIT_TOKEN:
     713        4214 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Token, 0));
     714        4214 :     return;
     715      143493 :   case IIT_METADATA:
     716      143493 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Metadata, 0));
     717      143493 :     return;
     718        8648 :   case IIT_F16:
     719        8648 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Half, 0));
     720        8648 :     return;
     721       66658 :   case IIT_F32:
     722       66658 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Float, 0));
     723       66658 :     return;
     724       38054 :   case IIT_F64:
     725       38054 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Double, 0));
     726       38054 :     return;
     727         174 :   case IIT_F128:
     728         174 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Quad, 0));
     729         174 :     return;
     730      292173 :   case IIT_I1:
     731      292173 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 1));
     732      292173 :     return;
     733     5099080 :   case IIT_I8:
     734     5099080 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 8));
     735     5099080 :     return;
     736       56033 :   case IIT_I16:
     737       56033 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer,16));
     738       56033 :     return;
     739      320836 :   case IIT_I32:
     740      320836 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 32));
     741      320836 :     return;
     742      165089 :   case IIT_I64:
     743      165089 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 64));
     744      165089 :     return;
     745         606 :   case IIT_I128:
     746         606 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Integer, 128));
     747         606 :     return;
     748         606 :   case IIT_V1:
     749         606 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 1));
     750         606 :     DecodeIITType(NextElt, Infos, OutputTable);
     751         606 :     return;
     752       62939 :   case IIT_V2:
     753       62939 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 2));
     754       62939 :     DecodeIITType(NextElt, Infos, OutputTable);
     755       62939 :     return;
     756      101201 :   case IIT_V4:
     757      101201 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 4));
     758      101201 :     DecodeIITType(NextElt, Infos, OutputTable);
     759      101201 :     return;
     760       77556 :   case IIT_V8:
     761       77556 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 8));
     762       77556 :     DecodeIITType(NextElt, Infos, OutputTable);
     763       77556 :     return;
     764       86914 :   case IIT_V16:
     765       86914 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 16));
     766       86914 :     DecodeIITType(NextElt, Infos, OutputTable);
     767       86914 :     return;
     768       20375 :   case IIT_V32:
     769       20375 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 32));
     770       20375 :     DecodeIITType(NextElt, Infos, OutputTable);
     771       20375 :     return;
     772        4221 :   case IIT_V64:
     773        4221 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 64));
     774        4221 :     DecodeIITType(NextElt, Infos, OutputTable);
     775        4221 :     return;
     776        1967 :   case IIT_V512:
     777        1967 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 512));
     778        1967 :     DecodeIITType(NextElt, Infos, OutputTable);
     779        1967 :     return;
     780         510 :   case IIT_V1024:
     781         510 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Vector, 1024));
     782         510 :     DecodeIITType(NextElt, Infos, OutputTable);
     783         510 :     return;
     784     7405007 :   case IIT_PTR:
     785     7405007 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Pointer, 0));
     786     7405007 :     DecodeIITType(NextElt, Infos, OutputTable);
     787     7405007 :     return;
     788       30434 :   case IIT_ANYPTR: {  // [ANYPTR addrspace, subtype]
     789       91302 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Pointer,
     790       60868 :                                              Infos[NextElt++]));
     791       30434 :     DecodeIITType(NextElt, Infos, OutputTable);
     792       30434 :     return;
     793             :   }
     794     1120245 :   case IIT_ARG: {
     795     1120245 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     796     1120245 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Argument, ArgInfo));
     797     1120245 :     return;
     798             :   }
     799        2295 :   case IIT_EXTEND_ARG: {
     800        2295 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     801        6885 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::ExtendArgument,
     802        2295 :                                              ArgInfo));
     803        2295 :     return;
     804             :   }
     805        5356 :   case IIT_TRUNC_ARG: {
     806        5356 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     807       16068 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::TruncArgument,
     808        5356 :                                              ArgInfo));
     809        5356 :     return;
     810             :   }
     811           0 :   case IIT_HALF_VEC_ARG: {
     812           0 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     813           0 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::HalfVecArgument,
     814           0 :                                              ArgInfo));
     815           0 :     return;
     816             :   }
     817        7780 :   case IIT_SAME_VEC_WIDTH_ARG: {
     818        7780 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     819       23340 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::SameVecWidthArgument,
     820        7780 :                                              ArgInfo));
     821        7780 :     return;
     822             :   }
     823           0 :   case IIT_PTR_TO_ARG: {
     824           0 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     825           0 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::PtrToArgument,
     826           0 :                                              ArgInfo));
     827           0 :     return;
     828             :   }
     829        1640 :   case IIT_PTR_TO_ELT: {
     830        1640 :     unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     831        1640 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::PtrToElt, ArgInfo));
     832        1640 :     return;
     833             :   }
     834        2734 :   case IIT_VEC_OF_ANYPTRS_TO_ELT: {
     835        2734 :     unsigned short ArgNo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     836        2734 :     unsigned short RefNo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
     837        5468 :     OutputTable.push_back(
     838        5468 :         IITDescriptor::get(IITDescriptor::VecOfAnyPtrsToElt, ArgNo, RefNo));
     839        2734 :     return;
     840             :   }
     841         878 :   case IIT_EMPTYSTRUCT:
     842         878 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct, 0));
     843         878 :     return;
     844         264 :   case IIT_STRUCT8: ++StructElts; LLVM_FALLTHROUGH;
     845         264 :   case IIT_STRUCT7: ++StructElts; LLVM_FALLTHROUGH;
     846         264 :   case IIT_STRUCT6: ++StructElts; LLVM_FALLTHROUGH;
     847         264 :   case IIT_STRUCT5: ++StructElts; LLVM_FALLTHROUGH;
     848        2369 :   case IIT_STRUCT4: ++StructElts; LLVM_FALLTHROUGH;
     849        4388 :   case IIT_STRUCT3: ++StructElts; LLVM_FALLTHROUGH;
     850       23208 :   case IIT_STRUCT2: {
     851       23208 :     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct,StructElts));
     852             : 
     853       77437 :     for (unsigned i = 0; i != StructElts; ++i)
     854       54229 :       DecodeIITType(NextElt, Infos, OutputTable);
     855             :     return;
     856             :   }
     857             :   }
     858           0 :   llvm_unreachable("unhandled");
     859             : }
     860             : 
     861             : #define GET_INTRINSIC_GENERATOR_GLOBAL
     862             : #include "llvm/IR/IntrinsicImpl.inc"
     863             : #undef GET_INTRINSIC_GENERATOR_GLOBAL
     864             : 
     865     3258361 : void Intrinsic::getIntrinsicInfoTableEntries(ID id,
     866             :                                              SmallVectorImpl<IITDescriptor> &T){
     867             :   // Check to see if the intrinsic's type was expressible by the table.
     868     3258361 :   unsigned TableVal = IIT_Table[id-1];
     869             : 
     870             :   // Decode the TableVal into an array of IITValues.
     871             :   SmallVector<unsigned char, 8> IITValues;
     872             :   ArrayRef<unsigned char> IITEntries;
     873     3258361 :   unsigned NextElt = 0;
     874     3258361 :   if ((TableVal >> 31) != 0) {
     875             :     // This is an offset into the IIT_LongEncodingTable.
     876             :     IITEntries = IIT_LongEncodingTable;
     877             : 
     878             :     // Strip sentinel bit.
     879      343505 :     NextElt = (TableVal << 1) >> 1;
     880             :   } else {
     881             :     // Decode the TableVal into an array of IITValues.  If the entry was encoded
     882             :     // into a single word in the table itself, decode it now.
     883             :     do {
     884    16816347 :       IITValues.push_back(TableVal & 0xF);
     885    16816347 :       TableVal >>= 4;
     886    16816347 :     } while (TableVal);
     887             : 
     888             :     IITEntries = IITValues;
     889     2914856 :     NextElt = 0;
     890             :   }
     891             : 
     892             :   // Okay, decode the table into the output vector of IITDescriptors.
     893     3258361 :   DecodeIITType(NextElt, IITEntries, T);
     894    10187241 :   while (NextElt != IITEntries.size() && IITEntries[NextElt] != 0)
     895     6928880 :     DecodeIITType(NextElt, IITEntries, T);
     896     3258361 : }
     897             : 
     898    16293189 : static Type *DecodeFixedType(ArrayRef<Intrinsic::IITDescriptor> &Infos,
     899             :                              ArrayRef<Type*> Tys, LLVMContext &Context) {
     900             :   using namespace Intrinsic;
     901             : 
     902    16293189 :   IITDescriptor D = Infos.front();
     903    16293189 :   Infos = Infos.slice(1);
     904             : 
     905    16293189 :   switch (D.Kind) {
     906     2744090 :   case IITDescriptor::Void: return Type::getVoidTy(Context);
     907         394 :   case IITDescriptor::VarArg: return Type::getVoidTy(Context);
     908         853 :   case IITDescriptor::MMX: return Type::getX86_MMXTy(Context);
     909        1376 :   case IITDescriptor::Token: return Type::getTokenTy(Context);
     910       86853 :   case IITDescriptor::Metadata: return Type::getMetadataTy(Context);
     911        5515 :   case IITDescriptor::Half: return Type::getHalfTy(Context);
     912        6289 :   case IITDescriptor::Float: return Type::getFloatTy(Context);
     913        2680 :   case IITDescriptor::Double: return Type::getDoubleTy(Context);
     914          22 :   case IITDescriptor::Quad: return Type::getFP128Ty(Context);
     915             : 
     916     5335114 :   case IITDescriptor::Integer:
     917     5335114 :     return IntegerType::get(Context, D.Integer_Width);
     918       39489 :   case IITDescriptor::Vector:
     919       39489 :     return VectorType::get(DecodeFixedType(Infos, Tys, Context),D.Vector_Width);
     920     7388514 :   case IITDescriptor::Pointer:
     921     7388514 :     return PointerType::get(DecodeFixedType(Infos, Tys, Context),
     922     7388514 :                             D.Pointer_AddressSpace);
     923             :   case IITDescriptor::Struct: {
     924             :     SmallVector<Type *, 8> Elts;
     925       27217 :     for (unsigned i = 0, e = D.Struct_NumElements; i != e; ++i)
     926       18560 :       Elts.push_back(DecodeFixedType(Infos, Tys, Context));
     927        8657 :     return StructType::get(Context, Elts);
     928             :   }
     929      671778 :   case IITDescriptor::Argument:
     930     1343556 :     return Tys[D.getArgumentNumber()];
     931         189 :   case IITDescriptor::ExtendArgument: {
     932         378 :     Type *Ty = Tys[D.getArgumentNumber()];
     933             :     if (VectorType *VTy = dyn_cast<VectorType>(Ty))
     934         183 :       return VectorType::getExtendedElementVectorType(VTy);
     935             : 
     936           6 :     return IntegerType::get(Context, 2 * cast<IntegerType>(Ty)->getBitWidth());
     937             :   }
     938         128 :   case IITDescriptor::TruncArgument: {
     939         256 :     Type *Ty = Tys[D.getArgumentNumber()];
     940             :     if (VectorType *VTy = dyn_cast<VectorType>(Ty))
     941         128 :       return VectorType::getTruncatedElementVectorType(VTy);
     942             : 
     943             :     IntegerType *ITy = cast<IntegerType>(Ty);
     944             :     assert(ITy->getBitWidth() % 2 == 0);
     945           0 :     return IntegerType::get(Context, ITy->getBitWidth() / 2);
     946             :   }
     947           0 :   case IITDescriptor::HalfVecArgument:
     948           0 :     return VectorType::getHalfElementsVectorType(cast<VectorType>(
     949           0 :                                                   Tys[D.getArgumentNumber()]));
     950         884 :   case IITDescriptor::SameVecWidthArgument: {
     951         884 :     Type *EltTy = DecodeFixedType(Infos, Tys, Context);
     952        1768 :     Type *Ty = Tys[D.getArgumentNumber()];
     953             :     if (VectorType *VTy = dyn_cast<VectorType>(Ty)) {
     954         884 :       return VectorType::get(EltTy, VTy->getNumElements());
     955             :     }
     956           0 :     llvm_unreachable("unhandled");
     957             :   }
     958           0 :   case IITDescriptor::PtrToArgument: {
     959           0 :     Type *Ty = Tys[D.getArgumentNumber()];
     960           0 :     return PointerType::getUnqual(Ty);
     961             :   }
     962         236 :   case IITDescriptor::PtrToElt: {
     963         472 :     Type *Ty = Tys[D.getArgumentNumber()];
     964             :     VectorType *VTy = dyn_cast<VectorType>(Ty);
     965             :     if (!VTy)
     966           0 :       llvm_unreachable("Expected an argument of Vector Type");
     967         236 :     Type *EltTy = VTy->getVectorElementType();
     968         236 :     return PointerType::getUnqual(EltTy);
     969             :   }
     970         128 :   case IITDescriptor::VecOfAnyPtrsToElt:
     971             :     // Return the overloaded type (which determines the pointers address space)
     972         256 :     return Tys[D.getOverloadArgNumber()];
     973             :   }
     974           0 :   llvm_unreachable("unhandled");
     975             : }
     976             : 
     977     2836757 : FunctionType *Intrinsic::getType(LLVMContext &Context,
     978             :                                  ID id, ArrayRef<Type*> Tys) {
     979             :   SmallVector<IITDescriptor, 8> Table;
     980     2836757 :   getIntrinsicInfoTableEntries(id, Table);
     981             : 
     982             :   ArrayRef<IITDescriptor> TableRef = Table;
     983     2836757 :   Type *ResultTy = DecodeFixedType(TableRef, Tys, Context);
     984             : 
     985             :   SmallVector<Type*, 8> ArgTys;
     986     8845742 :   while (!TableRef.empty())
     987     6008985 :     ArgTys.push_back(DecodeFixedType(TableRef, Tys, Context));
     988             : 
     989             :   // DecodeFixedType returns Void for IITDescriptor::Void and IITDescriptor::VarArg
     990             :   // If we see void type as the type of the last argument, it is vararg intrinsic
     991     2836757 :   if (!ArgTys.empty() && ArgTys.back()->isVoidTy()) {
     992             :     ArgTys.pop_back();
     993         394 :     return FunctionType::get(ResultTy, ArgTys, true);
     994             :   }
     995     2836363 :   return FunctionType::get(ResultTy, ArgTys, false);
     996             : }
     997             : 
     998       36328 : bool Intrinsic::isOverloaded(ID id) {
     999             : #define GET_INTRINSIC_OVERLOAD_TABLE
    1000             : #include "llvm/IR/IntrinsicImpl.inc"
    1001             : #undef GET_INTRINSIC_OVERLOAD_TABLE
    1002             : }
    1003             : 
    1004     3802237 : bool Intrinsic::isLeaf(ID id) {
    1005             :   switch (id) {
    1006             :   default:
    1007             :     return true;
    1008             : 
    1009             :   case Intrinsic::experimental_gc_statepoint:
    1010             :   case Intrinsic::experimental_patchpoint_void:
    1011             :   case Intrinsic::experimental_patchpoint_i64:
    1012             :     return false;
    1013             :   }
    1014             : }
    1015             : 
    1016             : /// This defines the "Intrinsic::getAttributes(ID id)" method.
    1017             : #define GET_INTRINSIC_ATTRIBUTES
    1018             : #include "llvm/IR/IntrinsicImpl.inc"
    1019             : #undef GET_INTRINSIC_ATTRIBUTES
    1020             : 
    1021     2827457 : Function *Intrinsic::getDeclaration(Module *M, ID id, ArrayRef<Type*> Tys) {
    1022             :   // There can never be multiple globals with the same name of different types,
    1023             :   // because intrinsics must be a specific type.
    1024             :   return
    1025     2827457 :     cast<Function>(M->getOrInsertFunction(getName(id, Tys),
    1026     2827457 :                                           getType(M->getContext(), id, Tys)));
    1027             : }
    1028             : 
    1029             : // This defines the "Intrinsic::getIntrinsicForGCCBuiltin()" method.
    1030             : #define GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
    1031             : #include "llvm/IR/IntrinsicImpl.inc"
    1032             : #undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
    1033             : 
    1034             : // This defines the "Intrinsic::getIntrinsicForMSBuiltin()" method.
    1035             : #define GET_LLVM_INTRINSIC_FOR_MS_BUILTIN
    1036             : #include "llvm/IR/IntrinsicImpl.inc"
    1037             : #undef GET_LLVM_INTRINSIC_FOR_MS_BUILTIN
    1038             : 
    1039     1736009 : bool Intrinsic::matchIntrinsicType(Type *Ty, ArrayRef<Intrinsic::IITDescriptor> &Infos,
    1040             :                                    SmallVectorImpl<Type*> &ArgTys) {
    1041             :   using namespace Intrinsic;
    1042             : 
    1043             :   // If we ran out of descriptors, there are too many arguments.
    1044     1736009 :   if (Infos.empty()) return true;
    1045     1736007 :   IITDescriptor D = Infos.front();
    1046     1736007 :   Infos = Infos.slice(1);
    1047             : 
    1048     1736007 :   switch (D.Kind) {
    1049      198362 :     case IITDescriptor::Void: return !Ty->isVoidTy();
    1050             :     case IITDescriptor::VarArg: return true;
    1051       67988 :     case IITDescriptor::MMX:  return !Ty->isX86_MMXTy();
    1052        5664 :     case IITDescriptor::Token: return !Ty->isTokenTy();
    1053      113264 :     case IITDescriptor::Metadata: return !Ty->isMetadataTy();
    1054        6266 :     case IITDescriptor::Half: return !Ty->isHalfTy();
    1055      120722 :     case IITDescriptor::Float: return !Ty->isFloatTy();
    1056       70748 :     case IITDescriptor::Double: return !Ty->isDoubleTy();
    1057         304 :     case IITDescriptor::Quad: return !Ty->isFP128Ty();
    1058      598573 :     case IITDescriptor::Integer: return !Ty->isIntegerTy(D.Integer_Width);
    1059      316800 :     case IITDescriptor::Vector: {
    1060      316800 :       VectorType *VT = dyn_cast<VectorType>(Ty);
    1061      633600 :       return !VT || VT->getNumElements() != D.Vector_Width ||
    1062      316800 :              matchIntrinsicType(VT->getElementType(), Infos, ArgTys);
    1063             :     }
    1064       46900 :     case IITDescriptor::Pointer: {
    1065       46900 :       PointerType *PT = dyn_cast<PointerType>(Ty);
    1066       93794 :       return !PT || PT->getAddressSpace() != D.Pointer_AddressSpace ||
    1067       46897 :              matchIntrinsicType(PT->getElementType(), Infos, ArgTys);
    1068             :     }
    1069             : 
    1070       15429 :     case IITDescriptor::Struct: {
    1071       15429 :       StructType *ST = dyn_cast<StructType>(Ty);
    1072       15429 :       if (!ST || ST->getNumElements() != D.Struct_NumElements)
    1073             :         return true;
    1074             : 
    1075       51098 :       for (unsigned i = 0, e = D.Struct_NumElements; i != e; ++i)
    1076       71338 :         if (matchIntrinsicType(ST->getElementType(i), Infos, ArgTys))
    1077             :           return true;
    1078             :       return false;
    1079             :     }
    1080             : 
    1081      448442 :     case IITDescriptor::Argument:
    1082             :       // Two cases here - If this is the second occurrence of an argument, verify
    1083             :       // that the later instance matches the previous instance.
    1084      448442 :       if (D.getArgumentNumber() < ArgTys.size())
    1085      198780 :         return Ty != ArgTys[D.getArgumentNumber()];
    1086             : 
    1087             :           // Otherwise, if this is the first instance of an argument, record it and
    1088             :           // verify the "Any" kind.
    1089             :           assert(D.getArgumentNumber() == ArgTys.size() && "Table consistency error");
    1090      249662 :           ArgTys.push_back(Ty);
    1091             : 
    1092             :           switch (D.getArgumentKind()) {
    1093             :             case IITDescriptor::AK_Any:        return false; // Success
    1094       82641 :             case IITDescriptor::AK_AnyInteger: return !Ty->isIntOrIntVectorTy();
    1095      144860 :             case IITDescriptor::AK_AnyFloat:   return !Ty->isFPOrFPVectorTy();
    1096       76054 :             case IITDescriptor::AK_AnyVector:  return !isa<VectorType>(Ty);
    1097      131918 :             case IITDescriptor::AK_AnyPointer: return !isa<PointerType>(Ty);
    1098             :           }
    1099           0 :           llvm_unreachable("all argument kinds not covered");
    1100             : 
    1101        2106 :     case IITDescriptor::ExtendArgument: {
    1102             :       // This may only be used when referring to a previous vector argument.
    1103        2106 :       if (D.getArgumentNumber() >= ArgTys.size())
    1104             :         return true;
    1105             : 
    1106        2106 :       Type *NewTy = ArgTys[D.getArgumentNumber()];
    1107             :       if (VectorType *VTy = dyn_cast<VectorType>(NewTy))
    1108        2046 :         NewTy = VectorType::getExtendedElementVectorType(VTy);
    1109             :       else if (IntegerType *ITy = dyn_cast<IntegerType>(NewTy))
    1110          60 :         NewTy = IntegerType::get(ITy->getContext(), 2 * ITy->getBitWidth());
    1111             :       else
    1112             :         return true;
    1113             : 
    1114        2106 :       return Ty != NewTy;
    1115             :     }
    1116        5228 :     case IITDescriptor::TruncArgument: {
    1117             :       // This may only be used when referring to a previous vector argument.
    1118        5228 :       if (D.getArgumentNumber() >= ArgTys.size())
    1119             :         return true;
    1120             : 
    1121        5228 :       Type *NewTy = ArgTys[D.getArgumentNumber()];
    1122             :       if (VectorType *VTy = dyn_cast<VectorType>(NewTy))
    1123        5228 :         NewTy = VectorType::getTruncatedElementVectorType(VTy);
    1124             :       else if (IntegerType *ITy = dyn_cast<IntegerType>(NewTy))
    1125           0 :         NewTy = IntegerType::get(ITy->getContext(), ITy->getBitWidth() / 2);
    1126             :       else
    1127             :         return true;
    1128             : 
    1129        5228 :       return Ty != NewTy;
    1130             :     }
    1131           0 :     case IITDescriptor::HalfVecArgument:
    1132             :       // This may only be used when referring to a previous vector argument.
    1133           0 :       return D.getArgumentNumber() >= ArgTys.size() ||
    1134           0 :              !isa<VectorType>(ArgTys[D.getArgumentNumber()]) ||
    1135             :              VectorType::getHalfElementsVectorType(
    1136           0 :                      cast<VectorType>(ArgTys[D.getArgumentNumber()])) != Ty;
    1137        6866 :     case IITDescriptor::SameVecWidthArgument: {
    1138        6866 :       if (D.getArgumentNumber() >= ArgTys.size())
    1139             :         return true;
    1140             :       VectorType * ReferenceType =
    1141        6866 :         dyn_cast<VectorType>(ArgTys[D.getArgumentNumber()]);
    1142        6866 :       VectorType *ThisArgType = dyn_cast<VectorType>(Ty);
    1143        6866 :       if (!ThisArgType || !ReferenceType ||
    1144             :           (ReferenceType->getVectorNumElements() !=
    1145             :            ThisArgType->getVectorNumElements()))
    1146             :         return true;
    1147       13708 :       return matchIntrinsicType(ThisArgType->getVectorElementType(),
    1148        6854 :                                 Infos, ArgTys);
    1149             :     }
    1150           0 :     case IITDescriptor::PtrToArgument: {
    1151           0 :       if (D.getArgumentNumber() >= ArgTys.size())
    1152             :         return true;
    1153           0 :       Type * ReferenceType = ArgTys[D.getArgumentNumber()];
    1154           0 :       PointerType *ThisArgType = dyn_cast<PointerType>(Ty);
    1155           0 :       return (!ThisArgType || ThisArgType->getElementType() != ReferenceType);
    1156             :     }
    1157        1404 :     case IITDescriptor::PtrToElt: {
    1158        1404 :       if (D.getArgumentNumber() >= ArgTys.size())
    1159             :         return true;
    1160             :       VectorType * ReferenceType =
    1161        1404 :         dyn_cast<VectorType> (ArgTys[D.getArgumentNumber()]);
    1162        1404 :       PointerType *ThisArgType = dyn_cast<PointerType>(Ty);
    1163             : 
    1164        1404 :       return (!ThisArgType || !ReferenceType ||
    1165        1404 :               ThisArgType->getElementType() != ReferenceType->getElementType());
    1166             :     }
    1167        2600 :     case IITDescriptor::VecOfAnyPtrsToElt: {
    1168             :       unsigned RefArgNumber = D.getRefArgNumber();
    1169             : 
    1170             :       // This may only be used when referring to a previous argument.
    1171        2600 :       if (RefArgNumber >= ArgTys.size())
    1172             :         return true;
    1173             : 
    1174             :       // Record the overloaded type
    1175             :       assert(D.getOverloadArgNumber() == ArgTys.size() &&
    1176             :              "Table consistency error");
    1177        2600 :       ArgTys.push_back(Ty);
    1178             : 
    1179             :       // Verify the overloaded type "matches" the Ref type.
    1180             :       // i.e. Ty is a vector with the same width as Ref.
    1181             :       // Composed of pointers to the same element type as Ref.
    1182        2600 :       VectorType *ReferenceType = dyn_cast<VectorType>(ArgTys[RefArgNumber]);
    1183        2600 :       VectorType *ThisArgVecTy = dyn_cast<VectorType>(Ty);
    1184        2600 :       if (!ThisArgVecTy || !ReferenceType ||
    1185             :           (ReferenceType->getVectorNumElements() !=
    1186             :            ThisArgVecTy->getVectorNumElements()))
    1187             :         return true;
    1188             :       PointerType *ThisArgEltTy =
    1189        2588 :               dyn_cast<PointerType>(ThisArgVecTy->getVectorElementType());
    1190             :       if (!ThisArgEltTy)
    1191             :         return true;
    1192        2582 :       return ThisArgEltTy->getElementType() !=
    1193        5164 :              ReferenceType->getVectorElementType();
    1194             :     }
    1195             :   }
    1196           0 :   llvm_unreachable("unhandled");
    1197             : }
    1198             : 
    1199             : bool
    1200      421432 : Intrinsic::matchIntrinsicVarArg(bool isVarArg,
    1201             :                                 ArrayRef<Intrinsic::IITDescriptor> &Infos) {
    1202             :   // If there are no descriptors left, then it can't be a vararg.
    1203      421432 :   if (Infos.empty())
    1204             :     return isVarArg;
    1205             : 
    1206             :   // There should be only one descriptor remaining at this point.
    1207        3774 :   if (Infos.size() != 1)
    1208             :     return true;
    1209             : 
    1210             :   // Check and verify the descriptor.
    1211        3774 :   IITDescriptor D = Infos.front();
    1212        3774 :   Infos = Infos.slice(1);
    1213        3774 :   if (D.Kind == IITDescriptor::VarArg)
    1214        3764 :     return !isVarArg;
    1215             : 
    1216             :   return true;
    1217             : }
    1218             : 
    1219      423598 : Optional<Function*> Intrinsic::remangleIntrinsicFunction(Function *F) {
    1220      423598 :   Intrinsic::ID ID = F->getIntrinsicID();
    1221      423598 :   if (!ID)
    1222             :     return None;
    1223             : 
    1224             :   FunctionType *FTy = F->getFunctionType();
    1225             :   // Accumulate an array of overloaded types for the given intrinsic
    1226             :   SmallVector<Type *, 4> ArgTys;
    1227             :   {
    1228             :     SmallVector<Intrinsic::IITDescriptor, 8> Table;
    1229       88526 :     getIntrinsicInfoTableEntries(ID, Table);
    1230             :     ArrayRef<Intrinsic::IITDescriptor> TableRef = Table;
    1231             : 
    1232             :     // If we encounter any problems matching the signature with the descriptor
    1233             :     // just give up remangling. It's up to verifier to report the discrepancy.
    1234      177052 :     if (Intrinsic::matchIntrinsicType(FTy->getReturnType(), TableRef, ArgTys))
    1235             :       return None;
    1236      280764 :     for (auto Ty : FTy->params())
    1237      192316 :       if (Intrinsic::matchIntrinsicType(Ty, TableRef, ArgTys))
    1238             :         return None;
    1239       88448 :     if (Intrinsic::matchIntrinsicVarArg(FTy->isVarArg(), TableRef))
    1240             :       return None;
    1241             :   }
    1242             : 
    1243       88434 :   StringRef Name = F->getName();
    1244      176868 :   if (Name == Intrinsic::getName(ID, ArgTys))
    1245             :     return None;
    1246             : 
    1247         132 :   auto NewDecl = Intrinsic::getDeclaration(F->getParent(), ID, ArgTys);
    1248             :   NewDecl->setCallingConv(F->getCallingConv());
    1249             :   assert(NewDecl->getFunctionType() == FTy && "Shouldn't change the signature");
    1250             :   return NewDecl;
    1251             : }
    1252             : 
    1253             : /// hasAddressTaken - returns true if there are any uses of this function
    1254             : /// other than direct calls or invokes to it.
    1255      284244 : bool Function::hasAddressTaken(const User* *PutOffender) const {
    1256      733018 :   for (const Use &U : uses()) {
    1257      475296 :     const User *FU = U.getUser();
    1258      475296 :     if (isa<BlockAddress>(FU))
    1259             :       continue;
    1260             :     if (!isa<CallInst>(FU) && !isa<InvokeInst>(FU)) {
    1261       20008 :       if (PutOffender)
    1262           0 :         *PutOffender = FU;
    1263       20008 :       return true;
    1264             :     }
    1265             :     ImmutableCallSite CS(cast<Instruction>(FU));
    1266      455206 :     if (!CS.isCallee(&U)) {
    1267        6514 :       if (PutOffender)
    1268           1 :         *PutOffender = FU;
    1269        6514 :       return true;
    1270             :     }
    1271             :   }
    1272             :   return false;
    1273             : }
    1274             : 
    1275      674452 : bool Function::isDefTriviallyDead() const {
    1276             :   // Check the linkage
    1277      771379 :   if (!hasLinkOnceLinkage() && !hasLocalLinkage() &&
    1278             :       !hasAvailableExternallyLinkage())
    1279             :     return false;
    1280             : 
    1281             :   // Check if the function is used by anything other than a blockaddress.
    1282      622157 :   for (const User *U : users())
    1283      115264 :     if (!isa<BlockAddress>(U))
    1284             :       return false;
    1285             : 
    1286             :   return true;
    1287             : }
    1288             : 
    1289             : /// callsFunctionThatReturnsTwice - Return true if the function has a call to
    1290             : /// setjmp or other function that gcc recognizes as "returning twice".
    1291      449059 : bool Function::callsFunctionThatReturnsTwice() const {
    1292    40387750 :   for (const_inst_iterator
    1293    40387750 :          I = inst_begin(this), E = inst_end(this); I != E; ++I) {
    1294             :     ImmutableCallSite CS(&*I);
    1295    40387775 :     if (CS && CS.hasFnAttr(Attribute::ReturnsTwice))
    1296          25 :       return true;
    1297             :   }
    1298             : 
    1299      449034 :   return false;
    1300             : }
    1301             : 
    1302     3787917 : Constant *Function::getPersonalityFn() const {
    1303             :   assert(hasPersonalityFn() && getNumOperands());
    1304     3787917 :   return cast<Constant>(Op<0>());
    1305             : }
    1306             : 
    1307      456464 : void Function::setPersonalityFn(Constant *Fn) {
    1308      456464 :   setHungoffOperand<0>(Fn);
    1309      456464 :   setValueSubclassDataBit(3, Fn != nullptr);
    1310      456464 : }
    1311             : 
    1312          78 : Constant *Function::getPrefixData() const {
    1313             :   assert(hasPrefixData() && getNumOperands());
    1314          78 :   return cast<Constant>(Op<1>());
    1315             : }
    1316             : 
    1317      324846 : void Function::setPrefixData(Constant *PrefixData) {
    1318      324846 :   setHungoffOperand<1>(PrefixData);
    1319      324846 :   setValueSubclassDataBit(1, PrefixData != nullptr);
    1320      324846 : }
    1321             : 
    1322         173 : Constant *Function::getPrologueData() const {
    1323             :   assert(hasPrologueData() && getNumOperands());
    1324         173 :   return cast<Constant>(Op<2>());
    1325             : }
    1326             : 
    1327      324934 : void Function::setPrologueData(Constant *PrologueData) {
    1328      324934 :   setHungoffOperand<2>(PrologueData);
    1329      324934 :   setValueSubclassDataBit(2, PrologueData != nullptr);
    1330      324934 : }
    1331             : 
    1332      132846 : void Function::allocHungoffUselist() {
    1333             :   // If we've already allocated a uselist, stop here.
    1334      132846 :   if (getNumOperands())
    1335             :     return;
    1336             : 
    1337      132735 :   allocHungoffUses(3, /*IsPhi=*/ false);
    1338             :   setNumHungOffUseOperands(3);
    1339             : 
    1340             :   // Initialize the uselist with placeholder operands to allow traversal.
    1341      132735 :   auto *CPN = ConstantPointerNull::get(Type::getInt1PtrTy(getContext(), 0));
    1342      132735 :   Op<0>().set(CPN);
    1343      132735 :   Op<1>().set(CPN);
    1344      132735 :   Op<2>().set(CPN);
    1345             : }
    1346             : 
    1347             : template <int Idx>
    1348     1106244 : void Function::setHungoffOperand(Constant *C) {
    1349     1106244 :   if (C) {
    1350      132846 :     allocHungoffUselist();
    1351      132846 :     Op<Idx>().set(C);
    1352      973398 :   } else if (getNumOperands()) {
    1353        2292 :     Op<Idx>().set(
    1354        2292 :         ConstantPointerNull::get(Type::getInt1PtrTy(getContext(), 0)));
    1355             :   }
    1356     1106244 : }
    1357      324934 : 
    1358      324934 : void Function::setValueSubclassDataBit(unsigned Bit, bool On) {
    1359         165 :   assert(Bit < 16 && "SubclassData contains only 16 bits");
    1360         165 :   if (On)
    1361      324769 :     setValueSubclassData(getSubclassDataFromValue() | (1 << Bit));
    1362        1156 :   else
    1363        1156 :     setValueSubclassData(getSubclassDataFromValue() & ~(1 << Bit));
    1364             : }
    1365      324934 : 
    1366      324846 : void Function::setEntryCount(ProfileCount Count,
    1367      324846 :                              const DenseSet<GlobalValue::GUID> *S) {
    1368          56 :   assert(Count.hasValue());
    1369          56 : #if !defined(NDEBUG)
    1370      324790 :   auto PrevCount = getEntryCount();
    1371        1131 :   assert(!PrevCount.hasValue() || PrevCount.getType() == Count.getType());
    1372        1131 : #endif
    1373             :   MDBuilder MDB(getContext());
    1374      324846 :   setMetadata(
    1375      456464 :       LLVMContext::MD_prof,
    1376      456464 :       MDB.createFunctionEntryCount(Count.getCount(), Count.isSynthetic(), S));
    1377      132625 : }
    1378      132625 : 
    1379      323839 : void Function::setEntryCount(uint64_t Count, Function::ProfileCountType Type,
    1380           5 :                              const DenseSet<GlobalValue::GUID> *Imports) {
    1381           5 :   setEntryCount(ProfileCount(Count, Type), Imports);
    1382             : }
    1383      456464 : 
    1384             : ProfileCount Function::getEntryCount() const {
    1385     1107286 :   MDNode *MD = getMetadata(LLVMContext::MD_prof);
    1386             :   if (MD && MD->getOperand(0))
    1387     1107286 :     if (MDString *MDS = dyn_cast<MDString>(MD->getOperand(0))) {
    1388      133367 :       if (MDS->getString().equals("function_entry_count")) {
    1389             :         ConstantInt *CI = mdconst::extract<ConstantInt>(MD->getOperand(1));
    1390      973919 :         uint64_t Count = CI->getValue().getZExtValue();
    1391     1107286 :         // A value of -1 is used for SamplePGO when there were no samples.
    1392             :         // Treat this the same as unknown.
    1393         506 :         if (Count == (uint64_t)-1)
    1394             :           return ProfileCount::getInvalid();
    1395             :         return ProfileCount(Count, PCT_Real);
    1396             :       } else if (MDS->getString().equals("synthetic_function_entry_count")) {
    1397             :         ConstantInt *CI = mdconst::extract<ConstantInt>(MD->getOperand(1));
    1398             :         uint64_t Count = CI->getValue().getZExtValue();
    1399             :         return ProfileCount(Count, PCT_Synthetic);
    1400         506 :       }
    1401         506 :     }
    1402             :   return ProfileCount::getInvalid();
    1403         506 : }
    1404         506 : 
    1405             : DenseSet<GlobalValue::GUID> Function::getImportGUIDs() const {
    1406         140 :   DenseSet<GlobalValue::GUID> R;
    1407             :   if (MDNode *MD = getMetadata(LLVMContext::MD_prof))
    1408         140 :     if (MDString *MDS = dyn_cast<MDString>(MD->getOperand(0)))
    1409         140 :       if (MDS->getString().equals("function_entry_count"))
    1410             :         for (unsigned i = 2; i < MD->getNumOperands(); i++)
    1411     3021809 :           R.insert(mdconst::extract<ConstantInt>(MD->getOperand(i))
    1412     3021809 :                        ->getValue()
    1413     3021809 :                        .getZExtValue());
    1414             :   return R;
    1415        2124 : }
    1416             : 
    1417             : void Function::setSectionPrefix(StringRef Prefix) {
    1418             :   MDBuilder MDB(getContext());
    1419             :   setMetadata(LLVMContext::MD_section_prefix,
    1420        1061 :               MDB.createFunctionSectionPrefix(Prefix));
    1421             : }
    1422         951 : 
    1423           2 : Optional<StringRef> Function::getSectionPrefix() const {
    1424             :   if (MDNode *MD = getMetadata(LLVMContext::MD_section_prefix)) {
    1425             :     assert(cast<MDString>(MD->getOperand(0))
    1426           1 :                ->getString()
    1427             :                .equals("function_section_prefix") &&
    1428             :            "Metadata not match");
    1429             :     return cast<MDString>(MD->getOperand(1))->getString();
    1430             :   }
    1431             :   return None;
    1432         630 : }
    1433             : 
    1434         630 : bool Function::nullPointerIsDefined() const {
    1435             :   return getFnAttribute("null-pointer-is-valid")
    1436          36 :           .getValueAsString()
    1437          20 :           .equals("true");
    1438             : }
    1439             : 
    1440           2 : bool llvm::NullPointerIsDefined(const Function *F, unsigned AS) {
    1441         630 :   if (F && F->nullPointerIsDefined())
    1442             :     return true;
    1443             : 
    1444          19 :   if (AS != 0)
    1445          19 :     return true;
    1446          19 : 
    1447             :   return false;
    1448          19 : }

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