Added LLVM_FALLTHROUGH to address warning: this statement may fall through. NFC.

llvm-svn: 304651

9 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index 8fb2f413923..224d9e9a0ee 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1866,6 +1866,7 @@ static void AddOrdinaryNameResults(Sema::ParserCompletionContext CCC,
   case Sema::PCC_Condition:
     AddStorageSpecifiers(CCC, SemaRef.getLangOpts(), Results);
     // Fall through: conditions and statements can have expressions.
+    LLVM_FALLTHROUGH;
 
   case Sema::PCC_ParenthesizedExpression:
     if (SemaRef.getLangOpts().ObjCAutoRefCount &&
@@ -1895,6 +1896,7 @@ static void AddOrdinaryNameResults(Sema::ParserCompletionContext CCC,
       Results.AddResult(Result(Builder.TakeString()));      
     }
     // Fall through
+    LLVM_FALLTHROUGH;
 
   case Sema::PCC_Expression: {
     if (SemaRef.getLangOpts().CPlusPlus) {
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index f8d26ec355a..ef6dfaa2f28 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -404,6 +404,7 @@ ParsedType Sema::getTypeName(const IdentifierInfo &II, SourceLocation NameLoc,
       }
     }
     // If typo correction failed or was not performed, fall through
+    LLVM_FALLTHROUGH;
   case LookupResult::FoundOverloaded:
   case LookupResult::FoundUnresolvedValue:
     Result.suppressDiagnostics();
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index d9528be2d38..acacdc263c0 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -14639,6 +14639,7 @@ bool Sema::checkThisInStaticMemberFunctionExceptionSpec(CXXMethodDecl *Method) {
   case EST_ComputedNoexcept:
     if (!Finder.TraverseStmt(Proto->getNoexceptExpr()))
       return true;
+    LLVM_FALLTHROUGH;
     
   case EST_Dynamic:
     for (const auto &E : Proto->exceptions()) {
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index b1a07ffb720..4e7fb19b282 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -11462,6 +11462,7 @@ ExprResult Sema::CreateBuiltinBinOp(SourceLocation OpLoc,
     break;
   case BO_And:
     checkObjCPointerIntrospection(*this, LHS, RHS, OpLoc);
+    LLVM_FALLTHROUGH;
   case BO_Xor:
   case BO_Or:
     ResultTy = CheckBitwiseOperands(LHS, RHS, OpLoc, Opc);
@@ -11504,6 +11505,7 @@ ExprResult Sema::CreateBuiltinBinOp(SourceLocation OpLoc,
   case BO_AndAssign:
   case BO_OrAssign: // fallthrough
     DiagnoseSelfAssignment(*this, LHS.get(), RHS.get(), OpLoc);
+    LLVM_FALLTHROUGH;
   case BO_XorAssign:
     CompResultTy = CheckBitwiseOperands(LHS, RHS, OpLoc, Opc);
     CompLHSTy = CompResultTy;
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index 4b1d7fd3cf2..a6239283b47 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -337,6 +337,7 @@ Sema::getCurrentMangleNumberContext(const DeclContext *DC,
       return nullptr;
     }
     // Fall through to get the current context.
+    LLVM_FALLTHROUGH;
 
   case DataMember:
     //  -- the in-class initializers of class members
diff --git a/clang/lib/Sema/SemaLookup.cpp b/clang/lib/Sema/SemaLookup.cpp
index c97da740e4d..1d32e579681 100644
--- a/clang/lib/Sema/SemaLookup.cpp
+++ b/clang/lib/Sema/SemaLookup.cpp
@@ -2594,6 +2594,7 @@ addAssociatedClassesAndNamespaces(AssociatedLookup &Result, QualType Ty) {
       for (const auto &Arg : Proto->param_types())
         Queue.push_back(Arg.getTypePtr());
       // fallthrough
+      LLVM_FALLTHROUGH;
     }
     case Type::FunctionNoProto: {
       const FunctionType *FnType = cast<FunctionType>(T);
diff --git a/clang/lib/Sema/SemaStmtAsm.cpp b/clang/lib/Sema/SemaStmtAsm.cpp
index 5f91cac14a3..c182b35bfad 100644
--- a/clang/lib/Sema/SemaStmtAsm.cpp
+++ b/clang/lib/Sema/SemaStmtAsm.cpp
@@ -277,6 +277,7 @@ StmtResult Sema::ActOnGCCAsmStmt(SourceLocation AsmLoc, bool IsSimple,
       if (RequireCompleteType(OutputExpr->getLocStart(), Exprs[i]->getType(),
                               diag::err_dereference_incomplete_type))
         return StmtError();
+      LLVM_FALLTHROUGH;
     default:
       return StmtError(Diag(OutputExpr->getLocStart(),
                             diag::err_asm_invalid_lvalue_in_output)
diff --git a/clang/lib/Sema/SemaTemplateDeduction.cpp b/clang/lib/Sema/SemaTemplateDeduction.cpp
index 7467ce40a88..75b69ae04f5 100644
--- a/clang/lib/Sema/SemaTemplateDeduction.cpp
+++ b/clang/lib/Sema/SemaTemplateDeduction.cpp
@@ -5094,6 +5094,7 @@ MarkUsedTemplateParameters(ASTContext &Ctx, QualType T,
                                cast<DependentSizedArrayType>(T)->getSizeExpr(),
                                OnlyDeduced, Depth, Used);
     // Fall through to check the element type
+    LLVM_FALLTHROUGH;
 
   case Type::ConstantArray:
   case Type::IncompleteArray:
diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp
index b567d15c870..c189112e345 100644
--- a/clang/lib/Sema/SemaType.cpp
+++ b/clang/lib/Sema/SemaType.cpp
@@ -643,6 +643,7 @@ static void distributeTypeAttrsFromDeclarator(TypeProcessingState &state,
       if (!state.getSema().getLangOpts().ObjCAutoRefCount)
         break;
       // fallthrough
+      LLVM_FALLTHROUGH;
 
     FUNCTION_TYPE_ATTRS_CASELIST:
       distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType);
@@ -6947,6 +6948,7 @@ static void processTypeAttrs(TypeProcessingState &state, QualType &type,
       if (!state.getSema().getLangOpts().ObjCAutoRefCount)
         break;
       // fallthrough into the function attrs
+      LLVM_FALLTHROUGH;
 
     FUNCTION_TYPE_ATTRS_CASELIST:
       attr.setUsedAsTypeAttr();