Fix dangling StringRefs found by clang-tidy misc-dangling-handle check.

llvm-svn: 307085

Author: alexfh

llvm/tools/llvm-lto/llvm-lto.cpp

@@ -383,7 +383,7 @@ loadAllFilesForIndex(const ModuleSummaryIndex &Index) {
 
   for (auto &ModPath : Index.modulePaths()) {
     const auto &Filename = ModPath.first();
-    auto CurrentActivity = "loading file '" + Filename + "'";
+    std::string CurrentActivity = ("loading file '" + Filename + "'").str();
     auto InputOrErr = MemoryBuffer::getFile(Filename);
     error(InputOrErr, "error " + CurrentActivity);
     InputBuffers.push_back(std::move(*InputOrErr));
@@ -475,7 +475,7 @@ class ThinLTOProcessing {
     std::vector<std::unique_ptr<MemoryBuffer>> InputBuffers;
     for (unsigned i = 0; i < InputFilenames.size(); ++i) {
       auto &Filename = InputFilenames[i];
-      StringRef CurrentActivity = "loading file '" + Filename + "'";
+      std::string CurrentActivity = "loading file '" + Filename + "'";
       auto InputOrErr = MemoryBuffer::getFile(Filename);
       error(InputOrErr, "error " + CurrentActivity);
       InputBuffers.push_back(std::move(*InputOrErr));
@@ -710,7 +710,7 @@ class ThinLTOProcessing {
     std::vector<std::unique_ptr<MemoryBuffer>> InputBuffers;
     for (unsigned i = 0; i < InputFilenames.size(); ++i) {
       auto &Filename = InputFilenames[i];
-      StringRef CurrentActivity = "loading file '" + Filename + "'";
+      std::string CurrentActivity = "loading file '" + Filename + "'";
       auto InputOrErr = MemoryBuffer::getFile(Filename);
       error(InputOrErr, "error " + CurrentActivity);
       InputBuffers.push_back(std::move(*InputOrErr));

llvm/tools/llvm-readobj/COFFDumper.cpp

@@ -1637,7 +1637,11 @@ static StringRef getBaseRelocTypeName(uint8_t Type) {
   case COFF::IMAGE_REL_BASED_HIGHADJ: return "HIGHADJ";
   case COFF::IMAGE_REL_BASED_ARM_MOV32T: return "ARM_MOV32(T)";
   case COFF::IMAGE_REL_BASED_DIR64: return "DIR64";
-  default: return "unknown (" + llvm::utostr(Type) + ")";
+  default: {
+    static std::string Result;
+    Result = "unknown (" + llvm::utostr(Type) + ")";
+    return Result;
+  }
   }
 }