Unnecessary `to_string`

diff --git a/src/librustc_codegen_llvm/back/symbol_export.rs b/src/librustc_codegen_llvm/back/symbol_export.rs
index 94357f348497d96c3edd11f480f165475d95659c..48de2f3beedfb68dc846eff0f9ad8c38107228e0 100644 (file)
--- a/src/librustc_codegen_llvm/back/symbol_export.rs
+++ b/src/librustc_codegen_llvm/back/symbol_export.rs
@@ -206,9 +206,8 @@ fn exported_symbols_provider_local<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
                                  })
                                  .collect();
 
-    if let Some(_) = *tcx.sess.entry_fn.borrow() {
-        let symbol_name = "main".to_string();
-        let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new(&symbol_name));
+    if tcx.sess.entry_fn.borrow().is_some() {
+        let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new("main"));
 
         symbols.push((exported_symbol, SymbolExportLevel::C));
     }