Don't create a whole new string just to copy the elements into it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52785 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 1720745..6052664 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -231,11 +231,9 @@
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
- std::string S;
- if (GetConstantStringInfo(C, S))
- Field = S;
- else
- Field = "";
+ // Fills in the string if it succeeds
+ if (!GetConstantStringInfo(C, Field))
+ Field.clear();
}
virtual void Apply(DebugInfoDesc *&Field) {
Constant *C = CI->getOperand(I++);