Avoid some string copies, NFC
llvm-svn: 299993
diff --git a/llvm/tools/llvm-cat/llvm-cat.cpp b/llvm/tools/llvm-cat/llvm-cat.cpp
index d884970..4d62099 100644
--- a/llvm/tools/llvm-cat/llvm-cat.cpp
+++ b/llvm/tools/llvm-cat/llvm-cat.cpp
@@ -40,7 +40,7 @@
SmallVector<char, 0> Buffer;
BitcodeWriter Writer(Buffer);
if (BinaryCat) {
- for (std::string InputFilename : InputFilenames) {
+ for (const auto &InputFilename : InputFilenames) {
std::unique_ptr<MemoryBuffer> MB = ExitOnErr(
errorOrToExpected(MemoryBuffer::getFileOrSTDIN(InputFilename)));
std::vector<BitcodeModule> Mods = ExitOnErr(getBitcodeModuleList(*MB));
@@ -49,7 +49,7 @@
BitcodeMod.getBuffer().end());
}
} else {
- for (std::string InputFilename : InputFilenames) {
+ for (const auto &InputFilename : InputFilenames) {
SMDiagnostic Err;
std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);
if (!M) {