Remove \brief commands from doxygen comments.

This is similar to the LLVM change https://reviews.llvm.org/D46290.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46320

llvm-svn: 331834
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 7889d08..98fc9ad 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -201,7 +201,7 @@
       Address UB)>
       CodeGenDispatchBoundsTy;
 
-  /// \brief CGBuilder insert helper. This function is called after an
+  /// CGBuilder insert helper. This function is called after an
   /// instruction is created using Builder.
   void InsertHelper(llvm::Instruction *I, const llvm::Twine &Name,
                     llvm::BasicBlock *BB,
@@ -255,7 +255,7 @@
   /// we prefer to insert allocas.
   llvm::AssertingVH<llvm::Instruction> AllocaInsertPt;
 
-  /// \brief API for captured statement code generation.
+  /// API for captured statement code generation.
   class CGCapturedStmtInfo {
   public:
     explicit CGCapturedStmtInfo(CapturedRegionKind K = CR_Default)
@@ -283,10 +283,10 @@
     CapturedRegionKind getKind() const { return Kind; }
 
     virtual void setContextValue(llvm::Value *V) { ThisValue = V; }
-    // \brief Retrieve the value of the context parameter.
+    // Retrieve the value of the context parameter.
     virtual llvm::Value *getContextValue() const { return ThisValue; }
 
-    /// \brief Lookup the captured field decl for a variable.
+    /// Lookup the captured field decl for a variable.
     virtual const FieldDecl *lookup(const VarDecl *VD) const {
       return CaptureFields.lookup(VD->getCanonicalDecl());
     }
@@ -298,32 +298,32 @@
       return true;
     }
 
-    /// \brief Emit the captured statement body.
+    /// Emit the captured statement body.
     virtual void EmitBody(CodeGenFunction &CGF, const Stmt *S) {
       CGF.incrementProfileCounter(S);
       CGF.EmitStmt(S);
     }
 
-    /// \brief Get the name of the capture helper.
+    /// Get the name of the capture helper.
     virtual StringRef getHelperName() const { return "__captured_stmt"; }
 
   private:
-    /// \brief The kind of captured statement being generated.
+    /// The kind of captured statement being generated.
     CapturedRegionKind Kind;
 
-    /// \brief Keep the map between VarDecl and FieldDecl.
+    /// Keep the map between VarDecl and FieldDecl.
     llvm::SmallDenseMap<const VarDecl *, FieldDecl *> CaptureFields;
 
-    /// \brief The base address of the captured record, passed in as the first
+    /// The base address of the captured record, passed in as the first
     /// argument of the parallel region function.
     llvm::Value *ThisValue;
 
-    /// \brief Captured 'this' type.
+    /// Captured 'this' type.
     FieldDecl *CXXThisFieldDecl;
   };
   CGCapturedStmtInfo *CapturedStmtInfo;
 
-  /// \brief RAII for correct setting/restoring of CapturedStmtInfo.
+  /// RAII for correct setting/restoring of CapturedStmtInfo.
   class CGCapturedStmtRAII {
   private:
     CodeGenFunction &CGF;
@@ -362,13 +362,13 @@
     }
   };
 
-  /// \brief Sanitizers enabled for this function.
+  /// Sanitizers enabled for this function.
   SanitizerSet SanOpts;
 
-  /// \brief True if CodeGen currently emits code implementing sanitizer checks.
+  /// True if CodeGen currently emits code implementing sanitizer checks.
   bool IsSanitizerScope;
 
-  /// \brief RAII object to set/unset CodeGenFunction::IsSanitizerScope.
+  /// RAII object to set/unset CodeGenFunction::IsSanitizerScope.
   class SanitizerScope {
     CodeGenFunction *CGF;
   public:
@@ -399,7 +399,7 @@
   llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields;
   FieldDecl *LambdaThisCaptureField;
 
-  /// \brief A mapping from NRVO variables to the flags used to indicate
+  /// A mapping from NRVO variables to the flags used to indicate
   /// when the NRVO has been applied to this variable.
   llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags;
 
@@ -525,7 +525,7 @@
     initFullExprCleanup();
   }
 
-  /// \brief Queue a cleanup to be pushed after finishing the current
+  /// Queue a cleanup to be pushed after finishing the current
   /// full-expression.
   template <class T, class... As>
   void pushCleanupAfterFullExpr(CleanupKind Kind, As... A) {
@@ -584,7 +584,7 @@
   void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup,
                             llvm::Instruction *DominatingIP);
 
-  /// \brief Enters a new scope for capturing cleanups, all of which
+  /// Enters a new scope for capturing cleanups, all of which
   /// will be executed once the scope is exited.
   class RunCleanupsScope {
     EHScopeStack::stable_iterator CleanupStackDepth, OldCleanupScopeDepth;
@@ -601,7 +601,7 @@
     CodeGenFunction& CGF;
 
   public:
-    /// \brief Enter a new cleanup scope.
+    /// Enter a new cleanup scope.
     explicit RunCleanupsScope(CodeGenFunction &CGF)
       : PerformCleanup(true), CGF(CGF)
     {
@@ -614,18 +614,18 @@
       CGF.CurrentCleanupScopeDepth = CleanupStackDepth;
     }
 
-    /// \brief Exit this cleanup scope, emitting any accumulated cleanups.
+    /// Exit this cleanup scope, emitting any accumulated cleanups.
     ~RunCleanupsScope() {
       if (PerformCleanup)
         ForceCleanup();
     }
 
-    /// \brief Determine whether this scope requires any cleanups.
+    /// Determine whether this scope requires any cleanups.
     bool requiresCleanups() const {
       return CGF.EHStack.stable_begin() != CleanupStackDepth;
     }
 
-    /// \brief Force the emission of cleanups now, instead of waiting
+    /// Force the emission of cleanups now, instead of waiting
     /// until this object is destroyed.
     /// \param ValuesToReload - A list of values that need to be available at
     /// the insertion point after cleanup emission. If cleanup emission created
@@ -654,7 +654,7 @@
     void operator=(const LexicalScope &) = delete;
 
   public:
-    /// \brief Enter a new cleanup scope.
+    /// Enter a new cleanup scope.
     explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range)
       : RunCleanupsScope(CGF), Range(Range), ParentScope(CGF.CurLexicalScope) {
       CGF.CurLexicalScope = this;
@@ -667,7 +667,7 @@
       Labels.push_back(label);
     }
 
-    /// \brief Exit this cleanup scope, emitting any accumulated
+    /// Exit this cleanup scope, emitting any accumulated
     /// cleanups.
     ~LexicalScope() {
       if (CGDebugInfo *DI = CGF.getDebugInfo())
@@ -681,7 +681,7 @@
       }
     }
 
-    /// \brief Force the emission of cleanups now, instead of waiting
+    /// Force the emission of cleanups now, instead of waiting
     /// until this object is destroyed.
     void ForceCleanup() {
       CGF.CurLexicalScope = ParentScope;
@@ -828,13 +828,13 @@
     }
   };
 
-  /// \brief Takes the old cleanup stack size and emits the cleanup blocks
+  /// Takes the old cleanup stack size and emits the cleanup blocks
   /// that have been added.
   void
   PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize,
                    std::initializer_list<llvm::Value **> ValuesToReload = {});
 
-  /// \brief Takes the old cleanup stack size and emits the cleanup blocks
+  /// Takes the old cleanup stack size and emits the cleanup blocks
   /// that have been added, then adds all lifetime-extended cleanups from
   /// the given position to the stack.
   void
@@ -1667,7 +1667,7 @@
 
   void GenerateCode(GlobalDecl GD, llvm::Function *Fn,
                     const CGFunctionInfo &FnInfo);
-  /// \brief Emit code for the start of a function.
+  /// Emit code for the start of a function.
   /// \param Loc       The location to be associated with the function.
   /// \param StartLoc  The location of the function body.
   void StartFunction(GlobalDecl GD,
@@ -1693,7 +1693,7 @@
   void EmitLambdaStaticInvokeBody(const CXXMethodDecl *MD);
   void EmitAsanPrologueOrEpilogue(bool Prologue);
 
-  /// \brief Emit the unified return block, trying to avoid its emission when
+  /// Emit the unified return block, trying to avoid its emission when
   /// possible.
   /// \return The debug location of the user written return statement if the
   /// return block is is avoided.
@@ -1766,7 +1766,7 @@
     CFITCK_ICall,
   };
 
-  /// \brief Derived is the presumed address of an object of type T after a
+  /// Derived is the presumed address of an object of type T after a
   /// cast. If T is a polymorphic class type, emit a check that the virtual
   /// table for Derived belongs to a class derived from T.
   void EmitVTablePtrCheckForCast(QualType T, llvm::Value *Derived,
@@ -2406,7 +2406,7 @@
   llvm::Value *EmitDynamicCast(Address V, const CXXDynamicCastExpr *DCE);
   Address EmitCXXUuidofExpr(const CXXUuidofExpr *E);
 
-  /// \brief Situations in which we might emit a check for the suitability of a
+  /// Situations in which we might emit a check for the suitability of a
   ///        pointer or glvalue.
   enum TypeCheckKind {
     /// Checking the operand of a load. Must be suitably sized and aligned.
@@ -2450,17 +2450,17 @@
   /// Determine whether the pointer type check \p TCK requires a vptr check.
   static bool isVptrCheckRequired(TypeCheckKind TCK, QualType Ty);
 
-  /// \brief Whether any type-checking sanitizers are enabled. If \c false,
+  /// Whether any type-checking sanitizers are enabled. If \c false,
   /// calls to EmitTypeCheck can be skipped.
   bool sanitizePerformTypeCheck() const;
 
-  /// \brief Emit a check that \p V is the address of storage of the
+  /// Emit a check that \p V is the address of storage of the
   /// appropriate size and alignment for an object of type \p Type.
   void EmitTypeCheck(TypeCheckKind TCK, SourceLocation Loc, llvm::Value *V,
                      QualType Type, CharUnits Alignment = CharUnits::Zero(),
                      SanitizerSet SkippedChecks = SanitizerSet());
 
-  /// \brief Emit a check that \p Base points into an array object, which
+  /// Emit a check that \p Base points into an array object, which
   /// we can access at index \p Index. \p Accessed should be \c false if we
   /// this expression is used as an lvalue, for instance in "&Arr[Idx]".
   void EmitBoundsCheck(const Expr *E, const Expr *Base, llvm::Value *Index,
@@ -2501,7 +2501,7 @@
   typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D,
                              llvm::Value *Address);
 
-  /// \brief Determine whether the given initializer is trivial in the sense
+  /// Determine whether the given initializer is trivial in the sense
   /// that it requires no code to be generated.
   bool isTrivialInitializer(const Expr *Init);
 
@@ -2776,7 +2776,7 @@
                                   SmallVectorImpl<llvm::Value *> &CapturedVars);
   void emitOMPSimpleStore(LValue LVal, RValue RVal, QualType RValTy,
                           SourceLocation Loc);
-  /// \brief Perform element by element copying of arrays with type \a
+  /// Perform element by element copying of arrays with type \a
   /// OriginalType from \a SrcAddr to \a DestAddr using copying procedure
   /// generated by \a CopyGen.
   ///
@@ -2788,7 +2788,7 @@
   void EmitOMPAggregateAssign(
       Address DestAddr, Address SrcAddr, QualType OriginalType,
       const llvm::function_ref<void(Address, Address)> CopyGen);
-  /// \brief Emit proper copying of data from one variable to another.
+  /// Emit proper copying of data from one variable to another.
   ///
   /// \param OriginalType Original type of the copied variables.
   /// \param DestAddr Destination address.
@@ -2803,7 +2803,7 @@
                    Address DestAddr, Address SrcAddr,
                    const VarDecl *DestVD, const VarDecl *SrcVD,
                    const Expr *Copy);
-  /// \brief Emit atomic update code for constructs: \a X = \a X \a BO \a E or
+  /// Emit atomic update code for constructs: \a X = \a X \a BO \a E or
   /// \a X = \a E \a BO \a E.
   ///
   /// \param X Value to be updated.
@@ -2827,7 +2827,7 @@
   void EmitOMPUseDevicePtrClause(
       const OMPClause &C, OMPPrivateScope &PrivateScope,
       const llvm::DenseMap<const ValueDecl *, Address> &CaptureDeviceAddrMap);
-  /// \brief Emit code for copyin clause in \a D directive. The next code is
+  /// Emit code for copyin clause in \a D directive. The next code is
   /// generated at the start of outlined functions for directives:
   /// \code
   /// threadprivate_var1 = master_threadprivate_var1;
@@ -2839,7 +2839,7 @@
   /// \param D OpenMP directive possibly with 'copyin' clause(s).
   /// \returns true if at least one copyin variable is found, false otherwise.
   bool EmitOMPCopyinClause(const OMPExecutableDirective &D);
-  /// \brief Emit initial code for lastprivate variables. If some variable is
+  /// Emit initial code for lastprivate variables. If some variable is
   /// not also firstprivate, then the default initialization is used. Otherwise
   /// initialization of this variable is performed by EmitOMPFirstprivateClause
   /// method.
@@ -2852,7 +2852,7 @@
   /// otherwise.
   bool EmitOMPLastprivateClauseInit(const OMPExecutableDirective &D,
                                     OMPPrivateScope &PrivateScope);
-  /// \brief Emit final copying of lastprivate values to original variables at
+  /// Emit final copying of lastprivate values to original variables at
   /// the end of the worksharing or simd directive.
   ///
   /// \param D Directive that has at least one 'lastprivate' directives.
@@ -2871,7 +2871,7 @@
   void EmitOMPLinearClauseFinal(
       const OMPLoopDirective &D,
       const llvm::function_ref<llvm::Value *(CodeGenFunction &)> CondGen);
-  /// \brief Emit initial code for reduction variables. Creates reduction copies
+  /// Emit initial code for reduction variables. Creates reduction copies
   /// and initializes them with the values according to OpenMP standard.
   ///
   /// \param D Directive (possibly) with the 'reduction' clause.
@@ -2880,14 +2880,14 @@
   ///
   void EmitOMPReductionClauseInit(const OMPExecutableDirective &D,
                                   OMPPrivateScope &PrivateScope);
-  /// \brief Emit final update of reduction values to original variables at
+  /// Emit final update of reduction values to original variables at
   /// the end of the directive.
   ///
   /// \param D Directive that has at least one 'reduction' directives.
   /// \param ReductionKind The kind of reduction to perform.
   void EmitOMPReductionClauseFinal(const OMPExecutableDirective &D,
                                    const OpenMPDirectiveKind ReductionKind);
-  /// \brief Emit initial code for linear variables. Creates private copies
+  /// Emit initial code for linear variables. Creates private copies
   /// and initializes them with the values according to OpenMP standard.
   ///
   /// \param D Directive (possibly) with the 'linear' clause.
@@ -3019,7 +3019,7 @@
   static void EmitOMPTargetTeamsDistributeParallelForDeviceFunction(
       CodeGenModule &CGM, StringRef ParentName,
       const OMPTargetTeamsDistributeParallelForDirective &S);
-  /// \brief Emit inner loop of the worksharing/simd construct.
+  /// Emit inner loop of the worksharing/simd construct.
   ///
   /// \param S Directive, for which the inner loop must be emitted.
   /// \param RequiresCleanup true, if directive has some associated private
@@ -3043,7 +3043,7 @@
   /// Helper for the OpenMP loop directives.
   void EmitOMPLoopBody(const OMPLoopDirective &D, JumpDest LoopExit);
 
-  /// \brief Emit code for the worksharing loop-based directive.
+  /// Emit code for the worksharing loop-based directive.
   /// \return true, if this construct has any lastprivate clause, false -
   /// otherwise.
   bool EmitOMPWorksharingLoop(const OMPLoopDirective &S, Expr *EUB,
@@ -3116,7 +3116,7 @@
                                   OMPPrivateScope &LoopScope,
                                   const OMPLoopArguments &LoopArgs,
                                   const CodeGenLoopTy &CodeGenLoopContent);
-  /// \brief Emit code for sections directive.
+  /// Emit code for sections directive.
   void EmitSections(const OMPExecutableDirective &S);
 
 public:
@@ -3157,7 +3157,7 @@
   ///
   LValue EmitLValue(const Expr *E);
 
-  /// \brief Same as EmitLValue but additionally we generate checking code to
+  /// Same as EmitLValue but additionally we generate checking code to
   /// guard against undefined behavior.  This is only suitable when we know
   /// that the address will be used to access the object.
   LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK);
@@ -3634,7 +3634,7 @@
   void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr);
   void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr);
 
-  /// \brief Emits a reference binding to the passed in expression.
+  /// Emits a reference binding to the passed in expression.
   RValue EmitReferenceBindingToExpr(const Expr *E);
 
   //===--------------------------------------------------------------------===//
@@ -3851,26 +3851,26 @@
   /// enabled, a runtime check specified by \p Kind is also emitted.
   llvm::Value *EmitCheckedArgForBuiltin(const Expr *E, BuiltinCheckKind Kind);
 
-  /// \brief Emit a description of a type in a format suitable for passing to
+  /// Emit a description of a type in a format suitable for passing to
   /// a runtime sanitizer handler.
   llvm::Constant *EmitCheckTypeDescriptor(QualType T);
 
-  /// \brief Convert a value into a format suitable for passing to a runtime
+  /// Convert a value into a format suitable for passing to a runtime
   /// sanitizer handler.
   llvm::Value *EmitCheckValue(llvm::Value *V);
 
-  /// \brief Emit a description of a source location in a format suitable for
+  /// Emit a description of a source location in a format suitable for
   /// passing to a runtime sanitizer handler.
   llvm::Constant *EmitCheckSourceLocation(SourceLocation Loc);
 
-  /// \brief Create a basic block that will call a handler function in a
+  /// Create a basic block that will call a handler function in a
   /// sanitizer runtime with the provided arguments, and create a conditional
   /// branch to it.
   void EmitCheck(ArrayRef<std::pair<llvm::Value *, SanitizerMask>> Checked,
                  SanitizerHandler Check, ArrayRef<llvm::Constant *> StaticArgs,
                  ArrayRef<llvm::Value *> DynamicArgs);
 
-  /// \brief Emit a slow path cross-DSO CFI check which calls __cfi_slowpath
+  /// Emit a slow path cross-DSO CFI check which calls __cfi_slowpath
   /// if Cond if false.
   void EmitCfiSlowPathCheck(SanitizerMask Kind, llvm::Value *Cond,
                             llvm::ConstantInt *TypeId, llvm::Value *Ptr,
@@ -3880,21 +3880,21 @@
   /// checking is enabled. Otherwise, just emit an unreachable instruction.
   void EmitUnreachable(SourceLocation Loc);
 
-  /// \brief Create a basic block that will call the trap intrinsic, and emit a
+  /// Create a basic block that will call the trap intrinsic, and emit a
   /// conditional branch to it, for the -ftrapv checks.
   void EmitTrapCheck(llvm::Value *Checked);
 
-  /// \brief Emit a call to trap or debugtrap and attach function attribute
+  /// Emit a call to trap or debugtrap and attach function attribute
   /// "trap-func-name" if specified.
   llvm::CallInst *EmitTrapCall(llvm::Intrinsic::ID IntrID);
 
-  /// \brief Emit a stub for the cross-DSO CFI check function.
+  /// Emit a stub for the cross-DSO CFI check function.
   void EmitCfiCheckStub();
 
-  /// \brief Emit a cross-DSO CFI failure handling function.
+  /// Emit a cross-DSO CFI failure handling function.
   void EmitCfiCheckFail();
 
-  /// \brief Create a check for a function parameter that may potentially be
+  /// Create a check for a function parameter that may potentially be
   /// declared as non-null.
   void EmitNonNullArgCheck(RValue RV, QualType ArgType, SourceLocation ArgLoc,
                            AbstractCallee AC, unsigned ParmNum);
@@ -3949,7 +3949,7 @@
                                   std::string &ConstraintStr,
                                   SourceLocation Loc);
 
-  /// \brief Attempts to statically evaluate the object size of E. If that
+  /// Attempts to statically evaluate the object size of E. If that
   /// fails, emits code to figure the size of E out for us. This is
   /// pass_object_size aware.
   ///
@@ -3958,7 +3958,7 @@
                                                llvm::IntegerType *ResType,
                                                llvm::Value *EmittedE);
 
-  /// \brief Emits the size of E, as required by __builtin_object_size. This
+  /// Emits the size of E, as required by __builtin_object_size. This
   /// function is aware of pass_object_size parameters, and will act accordingly
   /// if E is a parameter with the pass_object_size attribute.
   llvm::Value *emitBuiltinObjectSize(const Expr *E, unsigned Type,