Remove std::string uses from DebugInfo interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83083 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PIC16/PIC16DebugInfo.cpp b/lib/Target/PIC16/PIC16DebugInfo.cpp
index 3499e5c..c32b659 100644
--- a/lib/Target/PIC16/PIC16DebugInfo.cpp
+++ b/lib/Target/PIC16/PIC16DebugInfo.cpp
@@ -44,8 +44,7 @@
 /// PopulateBasicTypeInfo- Populate TypeNo for basic type from Ty.
 ///
 void PIC16DbgInfo::PopulateBasicTypeInfo (DIType Ty, unsigned short &TypeNo) {
-  std::string Name = "";
-  Ty.getName(Name);
+  std::string Name = Ty.getName();
   unsigned short BaseTy = GetTypeDebugNumber(Name);
   TypeNo = TypeNo << PIC16Dbg::S_BASIC;
   TypeNo = TypeNo | (0xffff & BaseTy);
@@ -117,7 +116,7 @@
     TypeNo = TypeNo | PIC16Dbg::T_STRUCT;
   else
     TypeNo = TypeNo | PIC16Dbg::T_UNION;
-  CTy.getName(TagName);
+  TagName = CTy.getName();
   // UniqueSuffix is .number where number is obtained from
   // llvm.dbg.composite<number>.
   // FIXME: This will break when composite type is not represented by
@@ -305,9 +304,8 @@
     bool HasAux = false;
     int ElementAux[PIC16Dbg::AuxSize] = { 0 };
     std::string TagName = "";
-    std::string ElementName;
     DIDerivedType DITy(Element.getNode());
-    DITy.getName(ElementName);
+    const char *ElementName = DITy.getName();
     unsigned short ElementSize = DITy.getSizeInBits()/8;
     // Get mangleddd name for this structure/union  element.
     std::string MangMemName = ElementName + SuffixNo;
@@ -338,8 +336,7 @@
       continue;
     if (CTy.getTag() == dwarf::DW_TAG_union_type ||
         CTy.getTag() == dwarf::DW_TAG_structure_type ) {
-      std::string Name;
-      CTy.getName(Name);
+      const char *Name = CTy.getName();
       // Get the number after llvm.dbg.composite and make UniqueSuffix from 
       // it.
       std::string DIVar = CTy.getNode()->getNameStr();
@@ -468,9 +465,9 @@
 void PIC16DbgInfo::SwitchToCU(MDNode *CU) {
   // Get the file path from CU.
   DICompileUnit cu(CU);
-  std::string DirName, FileName;
-  std::string FilePath = cu.getDirectory(DirName) + "/" + 
-                         cu.getFilename(FileName);
+  std::string DirName = cu.getDirectory();
+  std::string FileName = cu.getFilename();
+  std::string FilePath = DirName + "/" + FileName;
 
   // Nothing to do if source file is still same.
   if ( FilePath == CurFile ) return;