Author: Manna, Soumi
Date: 2023-05-05T14:34:36-07:00
New Revision: 07996804a0c0290a4ee5d964a94333894c7792c2

URL: 
https://github.com/llvm/llvm-project/commit/07996804a0c0290a4ee5d964a94333894c7792c2
DIFF: 
https://github.com/llvm/llvm-project/commit/07996804a0c0290a4ee5d964a94333894c7792c2.diff

LOG: [NFC] ][CLANG] Fix static code analyzer concerns

Reported by Coverity:

1. Inside "ASTReader.cpp" file,  in 
clang::ASTReader::FindExternalLexicalDecls(clang::DeclContext const *, 
llvm::function_ref<bool (clang::Decl::Kind)>, llvm::SmallVectorImpl<clang::Decl 
*> &): Using the auto keyword without an & causes a copy.

auto_causes_copy: Using the auto keyword without an & causes the copy of an 
object of type pair.

2. Inside "ASTReader.cpp" file, in clang::ASTReader::ReadAST(llvm::StringRef, 
clang::serialization::ModuleKind, clang::SourceLocation, unsigned int, 
llvm::SmallVectorImpl<clang::ASTReader::ImportedSubmodule> *): Using the auto 
keyword without an & causes a copy.

auto_causes_copy: Using the auto keyword without an & causes the copy of an 
object of type DenseMapPair.

3. Inside "CGOpenMPRuntimeGPU.cpp" file, in 
clang::CodeGen::CGOpenMPRuntimeGPU::emitGenericVarsEpilog(clang::CodeGen::CodeGenFunction
 &, bool): Using the auto keyword without an & causes a copy.

auto_causes_copy: Using the auto keyword without an & causes the copy of an 
object of type pair.

4. Inside "ASTWriter.cpp" file, in 
clang::ASTWriter::WriteHeaderSearch(clang::HeaderSearch const &): Using the 
auto keyword without an & causes a copy.

auto_causes_copy: Using the auto keyword without an & causes the copy of an 
object of type UnresolvedHeaderDirective.

Reviewed By: tahonermann

Differential Revision: https://reviews.llvm.org/D149461

Added: 
    

Modified: 
    clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
    clang/lib/Serialization/ASTReader.cpp
    clang/lib/Serialization/ASTWriter.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp 
b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
index 3f231703aa651..68c4fc872e3b8 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
@@ -1128,7 +1128,7 @@ void 
CGOpenMPRuntimeGPU::emitGenericVarsEpilog(CodeGenFunction &CGF,
   const auto I = FunctionGlobalizedDecls.find(CGF.CurFn);
   if (I != FunctionGlobalizedDecls.end()) {
     // Deallocate the memory for each globalized VLA object
-    for (auto AddrSizePair :
+    for (const auto &AddrSizePair :
          llvm::reverse(I->getSecond().EscapedVariableLengthDeclsAddrs)) {
       CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction(
                               CGM.getModule(), OMPRTL___kmpc_free_shared),

diff  --git a/clang/lib/Serialization/ASTReader.cpp 
b/clang/lib/Serialization/ASTReader.cpp
index 6a7bc22d3b7b3..13fec49e841cc 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -4425,7 +4425,7 @@ ASTReader::ASTReadResult ASTReader::ReadAST(StringRef 
FileName,
       Id->second->setOutOfDate(true);
   }
   // Mark selectors as out of date.
-  for (auto Sel : SelectorGeneration)
+  for (const auto &Sel : SelectorGeneration)
     SelectorOutOfDate[Sel.first] = true;
 
   // Resolve any unresolved module exports.
@@ -7693,7 +7693,7 @@ void ASTReader::FindExternalLexicalDecls(
   };
 
   if (isa<TranslationUnitDecl>(DC)) {
-    for (auto Lexical : TULexicalDecls)
+    for (const auto &Lexical : TULexicalDecls)
       Visit(Lexical.first, Lexical.second);
   } else {
     auto I = LexicalDecls.find(DC);

diff  --git a/clang/lib/Serialization/ASTWriter.cpp 
b/clang/lib/Serialization/ASTWriter.cpp
index 3d738149febcb..94c851d2dbf16 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -1884,7 +1884,7 @@ void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS) 
{
 
       // If the file didn't exist, we can still create a module if we were 
given
       // enough information in the module map.
-      for (auto U : M->MissingHeaders) {
+      for (const auto &U : M->MissingHeaders) {
         // Check that we were given enough information to build a module
         // without this file existing on disk.
         if (!U.Size || (!U.ModTime && IncludeTimestamps)) {


        
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