Fix a typo (occured => occurred)

Reported:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1005195

clang/include/clang-c/Index.h

@@ -3900,7 +3900,7 @@ enum CXTypeNullabilityKind {
   /**
    * Generally behaves like Nullable, except when used in a block parameter that
    * was imported into a swift async method. There, swift will assume that the
-   * parameter can get null even if no error occured. _Nullable parameters are
+   * parameter can get null even if no error occurred. _Nullable parameters are
    * assumed to only get null on error.
    */
   CXTypeNullability_NullableResult = 4

clang/include/clang/Analysis/Analyses/CalledOnceCheck.h

@@ -79,7 +79,7 @@ public:
   /// the path containing the call and not containing the call.  This helps us
   /// to pinpoint a bad path for the user.
   /// \param Parameter -- parameter that should be called once.
-  /// \param Function -- function declaration where the problem occured.
+  /// \param Function -- function declaration where the problem occurred.
   /// \param Where -- the least common ancestor statement.
   /// \param Reason -- a reason describing the path without a call.
   /// \param IsCalledDirectly -- true, if parameter actually gets called on

clang/include/clang/Basic/AttrDocs.td

@@ -3816,10 +3816,10 @@ completion handler in a Swift async method. For instance, here:
 This method asynchronously calls ``completionHandler`` when the data is
 available, or calls it with an error. ``_Nullable_result`` indicates to the
 Swift importer that this is the uncommon case where ``result`` can get ``nil``
-even if no error has occured, and will therefore import it as a Swift optional
+even if no error has occurred, and will therefore import it as a Swift optional
 type. Otherwise, if ``result`` was annotated with ``_Nullable``, the Swift
 importer will assume that ``result`` will always be non-nil unless an error
-occured.
+occurred.
 }];
 }
 

clang/include/clang/Basic/Specifiers.h

@@ -324,7 +324,7 @@ namespace clang {
     Unspecified,
     // Generally behaves like Nullable, except when used in a block parameter
     // that was imported into a swift async method. There, swift will assume
-    // that the parameter can get null even if no error occured. _Nullable
+    // that the parameter can get null even if no error occurred. _Nullable
     // parameters are assumed to only get null on error.
     NullableResult,
   };

clang/include/clang/CrossTU/CrossTranslationUnit.h

@@ -291,7 +291,7 @@ private:
     /// \param DisplayCTUProgress Display a message about loading new ASTs.
     ///
     /// \return An Expected instance which contains the ASTUnit pointer or the
-    /// error occured during the load.
+    /// error occurred during the load.
     llvm::Expected<ASTUnit *> getASTUnitForFunction(StringRef FunctionName,
                                                     StringRef CrossTUDir,
                                                     StringRef IndexName,

clang/include/clang/Format/Format.h

@@ -4062,7 +4062,7 @@ bool getPredefinedStyle(StringRef Name, FormatStyle::LanguageKind Language,
 /// document, are retained in \p Style.
 ///
 /// If AllowUnknownOptions is true, no errors are emitted if unknown
-/// format options are occured.
+/// format options are occurred.
 ///
 /// If set all diagnostics are emitted through the DiagHandler.
 std::error_code

clang/include/clang/Sema/Sema.h

@@ -6960,7 +6960,7 @@ public:
   /// \brief Check whether the given non-dependent constraint expression is
   /// satisfied. Returns false and updates Satisfaction with the satisfaction
   /// verdict if successful, emits a diagnostic and returns true if an error
-  /// occured and satisfaction could not be determined.
+  /// occurred and satisfaction could not be determined.
   ///
   /// \returns true if an error occurred, false otherwise.
   bool CheckConstraintSatisfaction(const Expr *ConstraintExpr,
@@ -6969,7 +6969,7 @@ public:
   /// Check whether the given function decl's trailing requires clause is
   /// satisfied, if any. Returns false and updates Satisfaction with the
   /// satisfaction verdict if successful, emits a diagnostic and returns true if
-  /// an error occured and satisfaction could not be determined.
+  /// an error occurred and satisfaction could not be determined.
   ///
   /// \returns true if an error occurred, false otherwise.
   bool CheckFunctionConstraints(const FunctionDecl *FD,
@@ -7915,7 +7915,7 @@ public:
   /// contain the converted forms of the template arguments as written.
   /// Otherwise, \p TemplateArgs will not be modified.
   ///
-  /// \param ConstraintsNotSatisfied If provided, and an error occured, will
+  /// \param ConstraintsNotSatisfied If provided, and an error occurred, will
   /// receive true if the cause for the error is the associated constraints of
   /// the template not being satisfied by the template arguments.
   ///

clang/lib/Sema/SemaOpenMP.cpp

@@ -5391,7 +5391,7 @@ static CapturedStmt *buildDistanceFunc(Sema &Actions, QualType LogicalTy,
       // the step size, rounding-up the effective upper bound ensures that the
       // last iteration is included.
       // Note that the rounding-up may cause an overflow in a temporry that
-      // could be avoided, but would have occured in a C-style for-loop as well.
+      // could be avoided, but would have occurred in a C-style for-loop as well.
       Expr *Divisor = BuildVarRef(NewStep);
       if (Rel == BO_GE || Rel == BO_GT)
         Divisor =

clang/lib/StaticAnalyzer/Core/RegionStore.cpp

@@ -1789,7 +1789,7 @@ Optional<SVal> RegionStoreManager::getConstantValFromConstArrayInitializer(
   SmallVector<uint64_t, 2> Extents = getConstantArrayExtents(CAT);
 
   // The number of offsets should equal to the numbers of extents,
-  // otherwise wrong type punning occured. For instance:
+  // otherwise wrong type punning occurred. For instance:
   //  int arr[1][2][3];
   //  auto ptr = (int(*)[42])arr;
   //  auto x = ptr[4][2]; // UB

clang/lib/StaticAnalyzer/Core/TextDiagnostics.cpp

@@ -129,7 +129,7 @@ public:
 
     Rewriter Rewrite(SM, LO);
     if (!applyAllReplacements(Repls, Rewrite)) {
-      llvm::errs() << "An error occured during applying fix-it.\n";
+      llvm::errs() << "An error occurred during applying fix-it.\n";
     }
 
     Rewrite.overwriteChangedFiles();

clang/tools/clang-offload-bundler/ClangOffloadBundler.cpp

@@ -1290,7 +1290,7 @@ static Error UnbundleArchive() {
     } // End of processing of all bundle entries of this child of input archive.
   }   // End of while over children of input archive.
 
-  assert(!ArchiveErr && "Error occured while reading archive!");
+  assert(!ArchiveErr && "Error occurred while reading archive!");
 
   /// Write out an archive for each target
   for (auto &Target : TargetNames) {

llvm/include/llvm/ADT/IntrusiveRefCntPtr.h

@@ -84,7 +84,7 @@ protected:
 #ifndef NDEBUG
   ~RefCountedBase() {
     assert(RefCount == 0 &&
-           "Destruction occured when there are still references to this.");
+           "Destruction occurred when there are still references to this.");
   }
 #else
   // Default the destructor in release builds, A trivial destructor may enable
@@ -115,7 +115,7 @@ protected:
 #ifndef NDEBUG
   ~ThreadSafeRefCountedBase() {
     assert(RefCount == 0 &&
-           "Destruction occured when there are still references to this.");
+           "Destruction occurred when there are still references to this.");
   }
 #else
   // Default the destructor in release builds, A trivial destructor may enable

llvm/include/llvm/CodeGen/ISDOpcodes.h

@@ -294,7 +294,7 @@ enum NodeType {
   /// subtraction. These nodes take three operands: The first two are normal lhs
   /// and rhs to the add or sub, and the third is a boolean indicating if there
   /// is an incoming carry. They produce two results: the normal result of the
-  /// add or sub, and a boolean that indicates if an overflow occured (*not*
+  /// add or sub, and a boolean that indicates if an overflow occurred (*not*
   /// flag, because it may be a store to memory, etc.). If the type of the
   /// boolean is not i1 then the high bits conform to getBooleanContents.
   SADDO_CARRY,

llvm/include/llvm/Support/MathExtras.h

@@ -906,7 +906,7 @@ extern const float huge_valf;
 
 
 /// Add two signed integers, computing the two's complement truncated result,
-/// returning true if overflow occured.
+/// returning true if overflow occurred.
 template <typename T>
 std::enable_if_t<std::is_signed<T>::value, T> AddOverflow(T X, T Y, T &Result) {
 #if __has_builtin(__builtin_add_overflow)

llvm/lib/DebugInfo/DWARF/DWARFUnit.cpp

@@ -407,7 +407,7 @@ void DWARFUnit::extractDIEsToVector(
     assert((Parents.back() == UINT32_MAX || Parents.back() <= Dies.size()) &&
            "Wrong parent index");
 
-    // Extract die. Stop if any error occured.
+    // Extract die. Stop if any error occurred.
     if (!DIE.extractFast(*this, &DIEOffset, DebugInfoData, NextCUOffset,
                          Parents.back()))
       break;

llvm/lib/TableGen/TGLexer.h

@@ -337,7 +337,7 @@ private:
   //
   // The method returns true upon reaching the first non-whitespace symbol
   // or EOF, CurPtr is set to point to this symbol.  The method returns false,
-  // if an error occured during skipping of a C-style comment.
+  // if an error occurred during skipping of a C-style comment.
   bool prepSkipLineBegin();
 
   // Skip any whitespaces or comments after a preprocessing directive.
@@ -345,7 +345,7 @@ private:
   // or end of the file.  If there is a multiline C-style comment
   // after the preprocessing directive, the method skips
   // the comment, so the final CurPtr may point to one of the next lines.
-  // The method returns false, if an error occured during skipping
+  // The method returns false, if an error occurred during skipping
   // C- or C++-style comment, or a non-whitespace symbol appears
   // after the preprocessing directive.
   //

llvm/lib/Transforms/IPO/Attributor.cpp

@@ -991,7 +991,7 @@ Attributor::getAssumedSimplified(const IRPosition &IRP,
   for (auto &CB : SimplificationCallbacks.lookup(IRP))
     return CB(IRP, AA, UsedAssumedInformation);
 
-  // If no high-level/outside simplification occured, use AAValueSimplify.
+  // If no high-level/outside simplification occurred, use AAValueSimplify.
   const auto &ValueSimplifyAA =
       getOrCreateAAFor<AAValueSimplify>(IRP, AA, DepClassTy::NONE);
   Optional<Value *> SimplifiedV =

llvm/test/Transforms/LowerConstantIntrinsics/stale-worklist-phi.ll

@@ -1,6 +1,6 @@
 ; RUN: opt -lower-constant-intrinsics -S < %s | FileCheck %s
 
-; This is a reproducer for a heap-use-after-free bug that occured due to trying
+; This is a reproducer for a heap-use-after-free bug that occurred due to trying
 ; to process a PHI node that was removed in a preceding worklist iteration. The
 ; conditional branch in %cont2.i will be replaced with an unconditional branch
 ; to %cont4.i. As a result of that, the PHI node in %handler.type_mismatch3.i

llvm/utils/reduce_pipeline_test/fake_opt.py

@@ -67,7 +67,7 @@ if len(crash_seq) > 0 and crash_seq[0] == tok:
 if args.output:
     shutil.copy(args.input, args.output)
 
-# Crash if all 'crash_seq' passes occured in right order.
+# Crash if all 'crash_seq' passes occurred in right order.
 if len(crash_seq) == 0:
     print('crash')
     os.kill(os.getpid(), signal.SIGKILL)