Avoid some possibly unsafe uses of StringRef::data().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89873 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 7 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index ab9d96f25f..9dad574aa2 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1010,7 +1010,7 @@ DIE *DwarfDebug::createGlobalVariableDIE(CompileUnit *DW_Unit,
     // Objective-C symbol names and symbol whose name is replaced using GCC's
     // __asm__ attribute.
     if (LinkageName[0] == 1)
-      LinkageName = LinkageName.data() + 1;
+      LinkageName = LinkageName.substr(1);
     addString(GVDie, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
               LinkageName);
   }
@@ -1097,7 +1097,7 @@ DIE *DwarfDebug::createSubprogramDIE(CompileUnit *DW_Unit,
     // Objective-C symbol names and symbol whose name is replaced using GCC's
     // __asm__ attribute.
     if (LinkageName[0] == 1)
-      LinkageName = LinkageName.data() + 1;
+      LinkageName = LinkageName.substr(1);
     addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
               LinkageName);
   }
@@ -2899,7 +2899,7 @@ void DwarfDebug::emitDebugInlineInfo() {
       // Objective-C symbol names and symbol whose name is replaced using GCC's
       // __asm__ attribute.
       if (LName[0] == 1)
-        LName = LName.data() + 1;
+        LName = LName.substr(1);
 //      Asm->EmitString(LName);
       EmitSectionOffset("string", "section_str",
                         StringPool.idFor(LName), false, true);
diff --git a/lib/Target/PIC16/PIC16DebugInfo.cpp b/lib/Target/PIC16/PIC16DebugInfo.cpp
index 74dcf60ca7..6e0e3cefac 100644
--- a/lib/Target/PIC16/PIC16DebugInfo.cpp
+++ b/lib/Target/PIC16/PIC16DebugInfo.cpp
@@ -306,10 +306,9 @@ void PIC16DbgInfo::EmitCompositeTypeElements (DICompositeType CTy,
     int ElementAux[PIC16Dbg::AuxSize] = { 0 };
     std::string TagName = "";
     DIDerivedType DITy(Element.getNode());
-    StringRef ElementName = DITy.getName();
     unsigned short ElementSize = DITy.getSizeInBits()/8;
     // Get mangleddd name for this structure/union  element.
-    std::string MangMemName = ElementName.data() + SuffixNo;
+    std::string MangMemName = DITy.getName().str() + SuffixNo;
     PopulateDebugInfo(DITy, TypeNo, HasAux, ElementAux, TagName);
     short Class = 0;
     if( CTy.getTag() == dwarf::DW_TAG_union_type)
@@ -337,12 +336,11 @@ void PIC16DbgInfo::EmitCompositeTypeDecls(Module &M) {
       continue;
     if (CTy.getTag() == dwarf::DW_TAG_union_type ||
         CTy.getTag() == dwarf::DW_TAG_structure_type ) {
-      StringRef Name = CTy.getName();
       // Get the number after llvm.dbg.composite and make UniqueSuffix from 
       // it.
       std::string DIVar = CTy.getNode()->getNameStr();
       std::string UniqueSuffix = "." + DIVar.substr(18);
-      std::string MangledCTyName = Name.data() + UniqueSuffix;
+      std::string MangledCTyName = CTy.getName().str() + UniqueSuffix;
       unsigned short size = CTy.getSizeInBits()/8;
       int Aux[PIC16Dbg::AuxSize] = {0};
       // 7th and 8th byte represent size of structure/union.