#include "llvm/Analysis/AliasSetTracker.h"
#include "llvm/Analysis/AliasAnalysis.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/InstIterator.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Type.h"
#include "llvm/Pass.h"
-#include "llvm/Type.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Assembly/Writer.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/InstIterator.h"
-#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
assert(!Forward && "This set is a forwarding set!!");
// Update the alias and access types of this set...
- AccessTy |= AS.AccessTy;
- AliasTy |= AS.AliasTy;
+ Access |= AS.Access;
+ Alias |= AS.Alias;
+ Volatile |= AS.Volatile;
- if (AliasTy == MustAlias) {
+ if (Alias == SetMustAlias) {
// Check that these two merged sets really are must aliases. Since both
// used to be must-alias sets, we can just check any pointer from each set
// for aliasing.
PointerRec *R = AS.getSomePointer();
// If the pointers are not a must-alias pair, this set becomes a may alias.
- if (AA.alias(L->getValue(), L->getSize(), R->getValue(), R->getSize())
- != AliasAnalysis::MustAlias)
- AliasTy = MayAlias;
+ if (AA.alias(MemoryLocation(L->getValue(), L->getSize(), L->getAAInfo()),
+ MemoryLocation(R->getValue(), R->getSize(), R->getAAInfo())) !=
+ MustAlias)
+ Alias = SetMayAlias;
}
- if (CallSites.empty()) { // Merge call sites...
- if (!AS.CallSites.empty())
- std::swap(CallSites, AS.CallSites);
- } else if (!AS.CallSites.empty()) {
- CallSites.insert(CallSites.end(), AS.CallSites.begin(), AS.CallSites.end());
- AS.CallSites.clear();
+ bool ASHadUnknownInsts = !AS.UnknownInsts.empty();
+ if (UnknownInsts.empty()) { // Merge call sites...
+ if (ASHadUnknownInsts) {
+ std::swap(UnknownInsts, AS.UnknownInsts);
+ addRef();
+ }
+ } else if (ASHadUnknownInsts) {
+ UnknownInsts.insert(UnknownInsts.end(), AS.UnknownInsts.begin(), AS.UnknownInsts.end());
+ AS.UnknownInsts.clear();
}
AS.Forward = this; // Forward across AS now...
AS.PtrList->setPrevInList(PtrListEnd);
PtrListEnd = AS.PtrListEnd;
- AS.PtrList = 0;
+ AS.PtrList = nullptr;
AS.PtrListEnd = &AS.PtrList;
- assert(*AS.PtrListEnd == 0 && "End of list is not null?");
+ assert(*AS.PtrListEnd == nullptr && "End of list is not null?");
}
+ if (ASHadUnknownInsts)
+ AS.dropRef(AST);
}
void AliasSetTracker::removeAliasSet(AliasSet *AS) {
if (AliasSet *Fwd = AS->Forward) {
Fwd->dropRef(*this);
- AS->Forward = 0;
+ AS->Forward = nullptr;
}
AliasSets.erase(AS);
}
}
void AliasSet::addPointer(AliasSetTracker &AST, PointerRec &Entry,
- unsigned Size, bool KnownMustAlias) {
+ uint64_t Size, const AAMDNodes &AAInfo,
+ bool KnownMustAlias) {
assert(!Entry.hasAliasSet() && "Entry already in set!");
// Check to see if we have to downgrade to _may_ alias.
if (isMustAlias() && !KnownMustAlias)
if (PointerRec *P = getSomePointer()) {
AliasAnalysis &AA = AST.getAliasAnalysis();
- AliasAnalysis::AliasResult Result =
- AA.alias(P->getValue(), P->getSize(), Entry.getValue(), Size);
- if (Result == AliasAnalysis::MayAlias)
- AliasTy = MayAlias;
+ AliasResult Result =
+ AA.alias(MemoryLocation(P->getValue(), P->getSize(), P->getAAInfo()),
+ MemoryLocation(Entry.getValue(), Size, AAInfo));
+ if (Result != MustAlias)
+ Alias = SetMayAlias;
else // First entry of must alias must have maximum size!
- P->updateSize(Size);
- assert(Result != AliasAnalysis::NoAlias && "Cannot be part of must set!");
+ P->updateSizeAndAAInfo(Size, AAInfo);
+ assert(Result != NoAlias && "Cannot be part of must set!");
}
Entry.setAliasSet(this);
- Entry.updateSize(Size);
+ Entry.updateSizeAndAAInfo(Size, AAInfo);
// Add it to the end of the list...
- assert(*PtrListEnd == 0 && "End of list is not null?");
+ assert(*PtrListEnd == nullptr && "End of list is not null?");
*PtrListEnd = &Entry;
PtrListEnd = Entry.setPrevInList(PtrListEnd);
- assert(*PtrListEnd == 0 && "End of list is not null?");
+ assert(*PtrListEnd == nullptr && "End of list is not null?");
addRef(); // Entry points to alias set.
}
-void AliasSet::addCallSite(CallSite CS, AliasAnalysis &AA) {
- CallSites.push_back(CS);
+void AliasSet::addUnknownInst(Instruction *I, AliasAnalysis &AA) {
+ if (UnknownInsts.empty())
+ addRef();
+ UnknownInsts.emplace_back(I);
- AliasAnalysis::ModRefBehavior Behavior = AA.getModRefBehavior(CS);
- if (Behavior == AliasAnalysis::DoesNotAccessMemory)
- return;
- else if (Behavior == AliasAnalysis::OnlyReadsMemory) {
- AliasTy = MayAlias;
- AccessTy |= Refs;
+ if (!I->mayWriteToMemory()) {
+ Alias = SetMayAlias;
+ Access |= RefAccess;
return;
}
// FIXME: This should use mod/ref information to make this not suck so bad
- AliasTy = MayAlias;
- AccessTy = ModRef;
+ Alias = SetMayAlias;
+ Access = ModRefAccess;
}
/// aliasesPointer - Return true if the specified pointer "may" (or must)
/// alias one of the members in the set.
///
-bool AliasSet::aliasesPointer(const Value *Ptr, unsigned Size,
+bool AliasSet::aliasesPointer(const Value *Ptr, uint64_t Size,
+ const AAMDNodes &AAInfo,
AliasAnalysis &AA) const {
- if (AliasTy == MustAlias) {
- assert(CallSites.empty() && "Illegal must alias set!");
+ if (Alias == SetMustAlias) {
+ assert(UnknownInsts.empty() && "Illegal must alias set!");
// If this is a set of MustAliases, only check to see if the pointer aliases
// SOME value in the set.
PointerRec *SomePtr = getSomePointer();
assert(SomePtr && "Empty must-alias set??");
- return AA.alias(SomePtr->getValue(), SomePtr->getSize(), Ptr, Size);
+ return AA.alias(MemoryLocation(SomePtr->getValue(), SomePtr->getSize(),
+ SomePtr->getAAInfo()),
+ MemoryLocation(Ptr, Size, AAInfo));
}
// If this is a may-alias set, we have to check all of the pointers in the set
// to be sure it doesn't alias the set...
for (iterator I = begin(), E = end(); I != E; ++I)
- if (AA.alias(Ptr, Size, I.getPointer(), I.getSize()))
+ if (AA.alias(MemoryLocation(Ptr, Size, AAInfo),
+ MemoryLocation(I.getPointer(), I.getSize(), I.getAAInfo())))
return true;
- // Check the call sites list and invoke list...
- if (!CallSites.empty()) {
- for (unsigned i = 0, e = CallSites.size(); i != e; ++i)
- if (AA.getModRefInfo(CallSites[i], Ptr, Size) != AliasAnalysis::NoModRef)
+ // Check the unknown instructions...
+ if (!UnknownInsts.empty()) {
+ for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i)
+ if (AA.getModRefInfo(UnknownInsts[i],
+ MemoryLocation(Ptr, Size, AAInfo)) != MRI_NoModRef)
return true;
}
return false;
}
-bool AliasSet::aliasesCallSite(CallSite CS, AliasAnalysis &AA) const {
- if (AA.doesNotAccessMemory(CS))
+bool AliasSet::aliasesUnknownInst(const Instruction *Inst,
+ AliasAnalysis &AA) const {
+ if (!Inst->mayReadOrWriteMemory())
return false;
- for (unsigned i = 0, e = CallSites.size(); i != e; ++i)
- if (AA.getModRefInfo(CallSites[i], CS) != AliasAnalysis::NoModRef ||
- AA.getModRefInfo(CS, CallSites[i]) != AliasAnalysis::NoModRef)
+ for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {
+ ImmutableCallSite C1(getUnknownInst(i)), C2(Inst);
+ if (!C1 || !C2 || AA.getModRefInfo(C1, C2) != MRI_NoModRef ||
+ AA.getModRefInfo(C2, C1) != MRI_NoModRef)
return true;
+ }
for (iterator I = begin(), E = end(); I != E; ++I)
- if (AA.getModRefInfo(CS, I.getPointer(), I.getSize()) !=
- AliasAnalysis::NoModRef)
+ if (AA.getModRefInfo(Inst, MemoryLocation(I.getPointer(), I.getSize(),
+ I.getAAInfo())) != MRI_NoModRef)
return true;
return false;
/// that may alias the pointer, merge them together and return the unified set.
///
AliasSet *AliasSetTracker::findAliasSetForPointer(const Value *Ptr,
- unsigned Size) {
- AliasSet *FoundSet = 0;
- for (iterator I = begin(), E = end(); I != E; ++I) {
- if (I->Forward || !I->aliasesPointer(Ptr, Size, AA)) continue;
+ uint64_t Size,
+ const AAMDNodes &AAInfo) {
+ AliasSet *FoundSet = nullptr;
+ for (iterator I = begin(), E = end(); I != E;) {
+ iterator Cur = I++;
+ if (Cur->Forward || !Cur->aliasesPointer(Ptr, Size, AAInfo, AA)) continue;
- if (FoundSet == 0) { // If this is the first alias set ptr can go into.
- FoundSet = I; // Remember it.
+ if (!FoundSet) { // If this is the first alias set ptr can go into.
+ FoundSet = &*Cur; // Remember it.
} else { // Otherwise, we must merge the sets.
- FoundSet->mergeSetIn(*I, *this); // Merge in contents.
+ FoundSet->mergeSetIn(*Cur, *this); // Merge in contents.
}
}
/// containsPointer - Return true if the specified location is represented by
/// this alias set, false otherwise. This does not modify the AST object or
/// alias sets.
-bool AliasSetTracker::containsPointer(Value *Ptr, unsigned Size) const {
+bool AliasSetTracker::containsPointer(const Value *Ptr, uint64_t Size,
+ const AAMDNodes &AAInfo) const {
for (const_iterator I = begin(), E = end(); I != E; ++I)
- if (!I->Forward && I->aliasesPointer(Ptr, Size, AA))
+ if (!I->Forward && I->aliasesPointer(Ptr, Size, AAInfo, AA))
return true;
return false;
}
+bool AliasSetTracker::containsUnknown(const Instruction *Inst) const {
+ for (const_iterator I = begin(), E = end(); I != E; ++I)
+ if (!I->Forward && I->aliasesUnknownInst(Inst, AA))
+ return true;
+ return false;
+}
-
-AliasSet *AliasSetTracker::findAliasSetForCallSite(CallSite CS) {
- AliasSet *FoundSet = 0;
- for (iterator I = begin(), E = end(); I != E; ++I) {
- if (I->Forward || !I->aliasesCallSite(CS, AA))
+AliasSet *AliasSetTracker::findAliasSetForUnknownInst(Instruction *Inst) {
+ AliasSet *FoundSet = nullptr;
+ for (iterator I = begin(), E = end(); I != E;) {
+ iterator Cur = I++;
+ if (Cur->Forward || !Cur->aliasesUnknownInst(Inst, AA))
continue;
-
- if (FoundSet == 0) { // If this is the first alias set ptr can go into.
- FoundSet = I; // Remember it.
- } else if (!I->Forward) { // Otherwise, we must merge the sets.
- FoundSet->mergeSetIn(*I, *this); // Merge in contents.
- }
+ if (!FoundSet) // If this is the first alias set ptr can go into.
+ FoundSet = &*Cur; // Remember it.
+ else if (!Cur->Forward) // Otherwise, we must merge the sets.
+ FoundSet->mergeSetIn(*Cur, *this); // Merge in contents.
}
return FoundSet;
}
/// getAliasSetForPointer - Return the alias set that the specified pointer
/// lives in.
-AliasSet &AliasSetTracker::getAliasSetForPointer(Value *Pointer, unsigned Size,
+AliasSet &AliasSetTracker::getAliasSetForPointer(Value *Pointer, uint64_t Size,
+ const AAMDNodes &AAInfo,
bool *New) {
AliasSet::PointerRec &Entry = getEntryFor(Pointer);
// Check to see if the pointer is already known.
if (Entry.hasAliasSet()) {
- Entry.updateSize(Size);
+ Entry.updateSizeAndAAInfo(Size, AAInfo);
// Return the set!
return *Entry.getAliasSet(*this)->getForwardedTarget(*this);
}
- if (AliasSet *AS = findAliasSetForPointer(Pointer, Size)) {
+ if (AliasSet *AS = findAliasSetForPointer(Pointer, Size, AAInfo)) {
// Add it to the alias set it aliases.
- AS->addPointer(*this, Entry, Size);
+ AS->addPointer(*this, Entry, Size, AAInfo);
return *AS;
}
if (New) *New = true;
// Otherwise create a new alias set to hold the loaded pointer.
AliasSets.push_back(new AliasSet());
- AliasSets.back().addPointer(*this, Entry, Size);
+ AliasSets.back().addPointer(*this, Entry, Size, AAInfo);
return AliasSets.back();
}
-bool AliasSetTracker::add(Value *Ptr, unsigned Size) {
+bool AliasSetTracker::add(Value *Ptr, uint64_t Size, const AAMDNodes &AAInfo) {
bool NewPtr;
- addPointer(Ptr, Size, AliasSet::NoModRef, NewPtr);
+ addPointer(Ptr, Size, AAInfo, AliasSet::NoAccess, NewPtr);
return NewPtr;
}
bool AliasSetTracker::add(LoadInst *LI) {
+ if (LI->getOrdering() > Monotonic) return addUnknown(LI);
+
+ AAMDNodes AAInfo;
+ LI->getAAMetadata(AAInfo);
+
+ AliasSet::AccessLattice Access = AliasSet::RefAccess;
bool NewPtr;
+ const DataLayout &DL = LI->getModule()->getDataLayout();
AliasSet &AS = addPointer(LI->getOperand(0),
- AA.getTypeStoreSize(LI->getType()),
- AliasSet::Refs, NewPtr);
+ DL.getTypeStoreSize(LI->getType()),
+ AAInfo, Access, NewPtr);
if (LI->isVolatile()) AS.setVolatile();
return NewPtr;
}
bool AliasSetTracker::add(StoreInst *SI) {
+ if (SI->getOrdering() > Monotonic) return addUnknown(SI);
+
+ AAMDNodes AAInfo;
+ SI->getAAMetadata(AAInfo);
+
+ AliasSet::AccessLattice Access = AliasSet::ModAccess;
bool NewPtr;
+ const DataLayout &DL = SI->getModule()->getDataLayout();
Value *Val = SI->getOperand(0);
AliasSet &AS = addPointer(SI->getOperand(1),
- AA.getTypeStoreSize(Val->getType()),
- AliasSet::Mods, NewPtr);
+ DL.getTypeStoreSize(Val->getType()),
+ AAInfo, Access, NewPtr);
if (SI->isVolatile()) AS.setVolatile();
return NewPtr;
}
bool AliasSetTracker::add(VAArgInst *VAAI) {
+ AAMDNodes AAInfo;
+ VAAI->getAAMetadata(AAInfo);
+
bool NewPtr;
- addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr);
+ addPointer(VAAI->getOperand(0), MemoryLocation::UnknownSize, AAInfo,
+ AliasSet::ModRefAccess, NewPtr);
return NewPtr;
}
-bool AliasSetTracker::add(CallSite CS) {
- if (isa<DbgInfoIntrinsic>(CS.getInstruction()))
+bool AliasSetTracker::addUnknown(Instruction *Inst) {
+ if (isa<DbgInfoIntrinsic>(Inst))
return true; // Ignore DbgInfo Intrinsics.
- if (AA.doesNotAccessMemory(CS))
+ if (!Inst->mayReadOrWriteMemory())
return true; // doesn't alias anything
- AliasSet *AS = findAliasSetForCallSite(CS);
+ AliasSet *AS = findAliasSetForUnknownInst(Inst);
if (AS) {
- AS->addCallSite(CS, AA);
+ AS->addUnknownInst(Inst, AA);
return false;
}
AliasSets.push_back(new AliasSet());
AS = &AliasSets.back();
- AS->addCallSite(CS, AA);
+ AS->addUnknownInst(Inst, AA);
return true;
}
return add(LI);
if (StoreInst *SI = dyn_cast<StoreInst>(I))
return add(SI);
- if (CallInst *CI = dyn_cast<CallInst>(I))
- return add(CI);
- if (InvokeInst *II = dyn_cast<InvokeInst>(I))
- return add(II);
if (VAArgInst *VAAI = dyn_cast<VAArgInst>(I))
return add(VAAI);
- return true;
+ return addUnknown(I);
}
void AliasSetTracker::add(BasicBlock &BB) {
- for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I)
- add(I);
+ for (auto &I : BB)
+ add(&I);
}
void AliasSetTracker::add(const AliasSetTracker &AST) {
AliasSet &AS = const_cast<AliasSet&>(*I);
// If there are any call sites in the alias set, add them to this AST.
- for (unsigned i = 0, e = AS.CallSites.size(); i != e; ++i)
- add(AS.CallSites[i]);
+ for (unsigned i = 0, e = AS.UnknownInsts.size(); i != e; ++i)
+ add(AS.UnknownInsts[i]);
// Loop over all of the pointers in this alias set.
bool X;
for (AliasSet::iterator ASI = AS.begin(), E = AS.end(); ASI != E; ++ASI) {
AliasSet &NewAS = addPointer(ASI.getPointer(), ASI.getSize(),
- (AliasSet::AccessType)AS.AccessTy, X);
+ ASI.getAAInfo(),
+ (AliasSet::AccessLattice)AS.Access, X);
if (AS.isVolatile()) NewAS.setVolatile();
}
}
/// tracker.
void AliasSetTracker::remove(AliasSet &AS) {
// Drop all call sites.
- AS.CallSites.clear();
+ if (!AS.UnknownInsts.empty())
+ AS.dropRef(*this);
+ AS.UnknownInsts.clear();
// Clear the alias set.
unsigned NumRefs = 0;
AS.removeFromTracker(*this);
}
-bool AliasSetTracker::remove(Value *Ptr, unsigned Size) {
- AliasSet *AS = findAliasSetForPointer(Ptr, Size);
+bool
+AliasSetTracker::remove(Value *Ptr, uint64_t Size, const AAMDNodes &AAInfo) {
+ AliasSet *AS = findAliasSetForPointer(Ptr, Size, AAInfo);
if (!AS) return false;
remove(*AS);
return true;
}
bool AliasSetTracker::remove(LoadInst *LI) {
- unsigned Size = AA.getTypeStoreSize(LI->getType());
- AliasSet *AS = findAliasSetForPointer(LI->getOperand(0), Size);
+ const DataLayout &DL = LI->getModule()->getDataLayout();
+ uint64_t Size = DL.getTypeStoreSize(LI->getType());
+
+ AAMDNodes AAInfo;
+ LI->getAAMetadata(AAInfo);
+
+ AliasSet *AS = findAliasSetForPointer(LI->getOperand(0), Size, AAInfo);
if (!AS) return false;
remove(*AS);
return true;
}
bool AliasSetTracker::remove(StoreInst *SI) {
- unsigned Size = AA.getTypeStoreSize(SI->getOperand(0)->getType());
- AliasSet *AS = findAliasSetForPointer(SI->getOperand(1), Size);
+ const DataLayout &DL = SI->getModule()->getDataLayout();
+ uint64_t Size = DL.getTypeStoreSize(SI->getOperand(0)->getType());
+
+ AAMDNodes AAInfo;
+ SI->getAAMetadata(AAInfo);
+
+ AliasSet *AS = findAliasSetForPointer(SI->getOperand(1), Size, AAInfo);
if (!AS) return false;
remove(*AS);
return true;
}
bool AliasSetTracker::remove(VAArgInst *VAAI) {
- AliasSet *AS = findAliasSetForPointer(VAAI->getOperand(0), ~0);
+ AAMDNodes AAInfo;
+ VAAI->getAAMetadata(AAInfo);
+
+ AliasSet *AS = findAliasSetForPointer(VAAI->getOperand(0),
+ MemoryLocation::UnknownSize, AAInfo);
if (!AS) return false;
remove(*AS);
return true;
}
-bool AliasSetTracker::remove(CallSite CS) {
- if (AA.doesNotAccessMemory(CS))
+bool AliasSetTracker::removeUnknown(Instruction *I) {
+ if (!I->mayReadOrWriteMemory())
return false; // doesn't alias anything
- AliasSet *AS = findAliasSetForCallSite(CS);
+ AliasSet *AS = findAliasSetForUnknownInst(I);
if (!AS) return false;
remove(*AS);
return true;
return remove(LI);
if (StoreInst *SI = dyn_cast<StoreInst>(I))
return remove(SI);
- if (CallInst *CI = dyn_cast<CallInst>(I))
- return remove(CI);
if (VAArgInst *VAAI = dyn_cast<VAArgInst>(I))
return remove(VAAI);
- return true;
+ return removeUnknown(I);
}
// dangling pointers to deleted instructions.
//
void AliasSetTracker::deleteValue(Value *PtrVal) {
- // Notify the alias analysis implementation that this value is gone.
- AA.deleteValue(PtrVal);
-
// If this is a call instruction, remove the callsite from the appropriate
- // AliasSet.
- if (CallSite CS = PtrVal)
- if (!AA.doesNotAccessMemory(CS))
- if (AliasSet *AS = findAliasSetForCallSite(CS))
- AS->removeCallSite(CS);
+ // AliasSet (if present).
+ if (Instruction *Inst = dyn_cast<Instruction>(PtrVal)) {
+ if (Inst->mayReadOrWriteMemory()) {
+ // Scan all the alias sets to see if this call site is contained.
+ for (iterator I = begin(), E = end(); I != E;) {
+ iterator Cur = I++;
+ if (!Cur->Forward)
+ Cur->removeUnknownInst(*this, Inst);
+ }
+ }
+ }
// First, look up the PointerRec for this pointer.
- PointerMapType::iterator I = PointerMap.find(PtrVal);
+ PointerMapType::iterator I = PointerMap.find_as(PtrVal);
if (I == PointerMap.end()) return; // Noop
// If we found one, remove the pointer from the alias set it is in.
// the tracker already knows about a value, it will ignore the request.
//
void AliasSetTracker::copyValue(Value *From, Value *To) {
- // Notify the alias analysis implementation that this value is copied.
- AA.copyValue(From, To);
-
// First, look up the PointerRec for this pointer.
- PointerMapType::iterator I = PointerMap.find(From);
+ PointerMapType::iterator I = PointerMap.find_as(From);
if (I == PointerMap.end())
return; // Noop
assert(I->second->hasAliasSet() && "Dead entry?");
if (Entry.hasAliasSet()) return; // Already in the tracker!
// Add it to the alias set it aliases...
- I = PointerMap.find(From);
+ I = PointerMap.find_as(From);
AliasSet *AS = I->second->getAliasSet(*this);
- AS->addPointer(*this, Entry, I->second->getSize(), true);
+ AS->addPointer(*this, Entry, I->second->getSize(),
+ I->second->getAAInfo(),
+ true);
}
//===----------------------------------------------------------------------===//
void AliasSet::print(raw_ostream &OS) const {
- OS << " AliasSet[" << format("0x%p", (void*)this) << "," << RefCount << "] ";
- OS << (AliasTy == MustAlias ? "must" : "may") << " alias, ";
- switch (AccessTy) {
- case NoModRef: OS << "No access "; break;
- case Refs : OS << "Ref "; break;
- case Mods : OS << "Mod "; break;
- case ModRef : OS << "Mod/Ref "; break;
- default: llvm_unreachable("Bad value for AccessTy!");
+ OS << " AliasSet[" << (const void*)this << ", " << RefCount << "] ";
+ OS << (Alias == SetMustAlias ? "must" : "may") << " alias, ";
+ switch (Access) {
+ case NoAccess: OS << "No access "; break;
+ case RefAccess: OS << "Ref "; break;
+ case ModAccess: OS << "Mod "; break;
+ case ModRefAccess: OS << "Mod/Ref "; break;
+ default: llvm_unreachable("Bad value for Access!");
}
if (isVolatile()) OS << "[volatile] ";
if (Forward)
OS << "Pointers: ";
for (iterator I = begin(), E = end(); I != E; ++I) {
if (I != begin()) OS << ", ";
- WriteAsOperand(OS << "(", I.getPointer());
+ I.getPointer()->printAsOperand(OS << "(");
OS << ", " << I.getSize() << ")";
}
}
- if (!CallSites.empty()) {
- OS << "\n " << CallSites.size() << " Call Sites: ";
- for (unsigned i = 0, e = CallSites.size(); i != e; ++i) {
+ if (!UnknownInsts.empty()) {
+ OS << "\n " << UnknownInsts.size() << " Unknown instructions: ";
+ for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {
if (i) OS << ", ";
- WriteAsOperand(OS, CallSites[i].getCalledValue());
+ UnknownInsts[i]->printAsOperand(OS);
}
}
OS << "\n";
OS << "\n";
}
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void AliasSet::dump() const { print(dbgs()); }
void AliasSetTracker::dump() const { print(dbgs()); }
+#endif
//===----------------------------------------------------------------------===//
// ASTCallbackVH Class Implementation
// this now dangles!
}
+void AliasSetTracker::ASTCallbackVH::allUsesReplacedWith(Value *V) {
+ AST->copyValue(getValPtr(), V);
+}
+
AliasSetTracker::ASTCallbackVH::ASTCallbackVH(Value *V, AliasSetTracker *ast)
: CallbackVH(V), AST(ast) {}
AliasSetTracker *Tracker;
public:
static char ID; // Pass identification, replacement for typeid
- AliasSetPrinter() : FunctionPass(ID) {}
+ AliasSetPrinter() : FunctionPass(ID) {
+ initializeAliasSetPrinterPass(*PassRegistry::getPassRegistry());
+ }
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesAll();
- AU.addRequired<AliasAnalysis>();
+ AU.addRequired<AAResultsWrapperPass>();
}
- virtual bool runOnFunction(Function &F) {
- Tracker = new AliasSetTracker(getAnalysis<AliasAnalysis>());
+ bool runOnFunction(Function &F) override {
+ auto &AAWP = getAnalysis<AAResultsWrapperPass>();
+ Tracker = new AliasSetTracker(AAWP.getAAResults());
for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
Tracker->add(&*I);
}
char AliasSetPrinter::ID = 0;
-INITIALIZE_PASS(AliasSetPrinter, "print-alias-sets",
- "Alias Set Printer", false, true);
+INITIALIZE_PASS_BEGIN(AliasSetPrinter, "print-alias-sets",
+ "Alias Set Printer", false, true)
+INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
+INITIALIZE_PASS_END(AliasSetPrinter, "print-alias-sets",
+ "Alias Set Printer", false, true)
projects / oota-llvm.git / blobdiff