[NFC] fix trivial typos in comments

llvm-svn: 353147

Author: inouehrs

llvm/lib/Analysis/BasicAliasAnalysis.cpp

@@ -884,7 +884,7 @@ ModRefInfo BasicAAResult::getModRefInfo(const CallBase *Call,
           getBestAAResults().alias(MemoryLocation(*CI), MemoryLocation(Object));
       if (AR != MustAlias)
         IsMustAlias = false;
-      // Operand doesnt alias 'Object', continue looking for other aliases
+      // Operand doesn't alias 'Object', continue looking for other aliases
       if (AR == NoAlias)
         continue;
       // Operand aliases 'Object', but call doesn't modify it. Strengthen
@@ -1019,7 +1019,7 @@ ModRefInfo BasicAAResult::getModRefInfo(const CallBase *Call1,
   // heap state at the point the guard is issued needs to be consistent in case
   // the guard invokes the "deopt" continuation.
 
-  // NB! This function is *not* commutative, so we specical case two
+  // NB! This function is *not* commutative, so we special case two
   // possibilities for guard intrinsics.
 
   if (isIntrinsicCall(Call1, Intrinsic::experimental_guard))

llvm/lib/Analysis/GlobalsModRef.cpp

@@ -596,7 +596,7 @@ void GlobalsAAResult::AnalyzeCallGraph(CallGraph &CG, Module &M) {
         }
 
         // All non-call instructions we use the primary predicates for whether
-        // thay read or write memory.
+        // they read or write memory.
         if (I.mayReadFromMemory())
           FI.addModRefInfo(ModRefInfo::Ref);
         if (I.mayWriteToMemory())
@@ -790,10 +790,10 @@ bool GlobalsAAResult::isNonEscapingGlobalNoAlias(const GlobalValue *GV,
     }
 
     // FIXME: It would be good to handle other obvious no-alias cases here, but
-    // it isn't clear how to do so reasonbly without building a small version
+    // it isn't clear how to do so reasonably without building a small version
     // of BasicAA into this code. We could recurse into AAResultBase::alias
     // here but that seems likely to go poorly as we're inside the
-    // implementation of such a query. Until then, just conservatievly retun
+    // implementation of such a query. Until then, just conservatively return
     // false.
     return false;
   } while (!Inputs.empty());

llvm/lib/Analysis/IVDescriptors.cpp

@@ -1009,7 +1009,7 @@ bool InductionDescriptor::isInductionPHI(PHINode *Phi, const Loop *TheLoop,
   // If we started from an UnknownSCEV, and managed to build an addRecurrence
   // only after enabling Assume with PSCEV, this means we may have encountered
   // cast instructions that required adding a runtime check in order to
-  // guarantee the correctness of the AddRecurence respresentation of the
+  // guarantee the correctness of the AddRecurrence respresentation of the
   // induction.
   if (PhiScev != AR && SymbolicPhi) {
     SmallVector<Instruction *, 2> Casts;

llvm/lib/Analysis/InlineCost.cpp

@@ -76,7 +76,7 @@ static cl::opt<int> LocallyHotCallSiteThreshold(
 
 static cl::opt<int> ColdCallSiteRelFreq(
     "cold-callsite-rel-freq", cl::Hidden, cl::init(2), cl::ZeroOrMore,
-    cl::desc("Maxmimum block frequency, expressed as a percentage of caller's "
+    cl::desc("Maximum block frequency, expressed as a percentage of caller's "
              "entry frequency, for a callsite to be cold in the absence of "
              "profile information."));
 
@@ -1675,7 +1675,7 @@ ConstantInt *CallAnalyzer::stripAndComputeInBoundsConstantOffsets(Value *&V) {
 /// blocks to see if all their incoming edges are dead or not.
 void CallAnalyzer::findDeadBlocks(BasicBlock *CurrBB, BasicBlock *NextBB) {
   auto IsEdgeDead = [&](BasicBlock *Pred, BasicBlock *Succ) {
-    // A CFG edge is dead if the predecessor is dead or the predessor has a
+    // A CFG edge is dead if the predecessor is dead or the predecessor has a
     // known successor which is not the one under exam.
     return (DeadBlocks.count(Pred) ||
             (KnownSuccessors[Pred] && KnownSuccessors[Pred] != Succ));

llvm/lib/Analysis/LazyValueInfo.cpp

@@ -624,7 +624,7 @@ bool LazyValueInfoImpl::solveBlockValueImpl(ValueLatticeElement &Res,
   // and the like to prove non-nullness, but it's not clear that's worth it
   // compile time wise.  The context-insensitive value walk done inside
   // isKnownNonZero gets most of the profitable cases at much less expense.
-  // This does mean that we have a sensativity to where the defining
+  // This does mean that we have a sensitivity to where the defining
   // instruction is placed, even if it could legally be hoisted much higher.
   // That is unfortunate.
   PointerType *PT = dyn_cast<PointerType>(BBI->getType());

llvm/lib/Analysis/LoopAccessAnalysis.cpp

@@ -2251,7 +2251,7 @@ void LoopAccessInfo::collectStridedAccess(Value *MemAccess) {
 
   // Match the types so we can compare the stride and the BETakenCount.
   // The Stride can be positive/negative, so we sign extend Stride;
-  // The backdgeTakenCount is non-negative, so we zero extend BETakenCount.
+  // The backedgeTakenCount is non-negative, so we zero extend BETakenCount.
   const DataLayout &DL = TheLoop->getHeader()->getModule()->getDataLayout();
   uint64_t StrideTypeSize = DL.getTypeAllocSize(StrideExpr->getType());
   uint64_t BETypeSize = DL.getTypeAllocSize(BETakenCount->getType());

llvm/lib/Analysis/MemorySSAUpdater.cpp

@@ -598,7 +598,7 @@ void MemorySSAUpdater::applyUpdates(ArrayRef<CFGUpdate> Updates,
 
   if (!RevDeleteUpdates.empty()) {
     // Update for inserted edges: use newDT and snapshot CFG as if deletes had
-    // not occured.
+    // not occurred.
     // FIXME: This creates a new DT, so it's more expensive to do mix
     // delete/inserts vs just inserts. We can do an incremental update on the DT
     // to revert deletes, than re-delete the edges. Teaching DT to do this, is
@@ -696,7 +696,7 @@ void MemorySSAUpdater::applyInsertUpdates(ArrayRef<CFGUpdate> Updates,
 
   // Map a BB to its predecessors: added + previously existing. To get a
   // deterministic order, store predecessors as SetVectors. The order in each
-  // will be defined by teh order in Updates (fixed) and the order given by
+  // will be defined by the order in Updates (fixed) and the order given by
   // children<> (also fixed). Since we further iterate over these ordered sets,
   // we lose the information of multiple edges possibly existing between two
   // blocks, so we'll keep and EdgeCount map for that.

llvm/lib/Analysis/VectorUtils.cpp

@@ -991,7 +991,7 @@ void InterleavedAccessInfo::analyzeInterleaving(
     // that all the pointers in the group don't wrap.
     // So we check only group member 0 (which is always guaranteed to exist),
     // and group member Factor - 1; If the latter doesn't exist we rely on
-    // peeling (if it is a non-reveresed accsess -- see Case 3).
+    // peeling (if it is a non-reversed accsess -- see Case 3).
     Value *FirstMemberPtr = getLoadStorePointerOperand(Group->getMember(0));
     if (!getPtrStride(PSE, FirstMemberPtr, TheLoop, Strides, /*Assume=*/false,
                       /*ShouldCheckWrap=*/true)) {