Eliminate unnecessary empty string literals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 6cae804..8313de5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -199,7 +199,7 @@
#else
errs() << "SelectionDAG::getGraphAttrs is only available in debug builds"
<< " on systems with Graphviz or gv!\n";
- return std::string("");
+ return std::string();
#endif
}
diff --git a/lib/System/Unix/Path.inc b/lib/System/Unix/Path.inc
index bc104a3..3d88311 100644
--- a/lib/System/Unix/Path.inc
+++ b/lib/System/Unix/Path.inc
@@ -276,7 +276,7 @@
char pathname[MAXPATHLEN];
if (!getcwd(pathname,MAXPATHLEN)) {
assert (false && "Could not query current working directory.");
- return Path("");
+ return Path();
}
return Path(pathname);
@@ -408,7 +408,7 @@
std::string::size_type dot = path.rfind('.');
if (dot == std::string::npos || dot < slash)
- return StringRef("");
+ return StringRef();
else
return StringRef(path).substr(dot + 1);
}
diff --git a/lib/VMCore/Module.cpp b/lib/VMCore/Module.cpp
index 507d249..d7ddf96 100644
--- a/lib/VMCore/Module.cpp
+++ b/lib/VMCore/Module.cpp
@@ -58,7 +58,7 @@
//
Module::Module(StringRef MID, LLVMContext& C)
- : Context(C), Materializer(NULL), ModuleID(MID), DataLayout("") {
+ : Context(C), Materializer(NULL), ModuleID(MID) {
ValSymTab = new ValueSymbolTable();
TypeSymTab = new TypeSymbolTable();
NamedMDSymTab = new StringMap<NamedMDNode *>();