Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176893 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index c81abe9..0f8f074 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -298,7 +298,7 @@
   // Put out the directory and file tables.
 
   // First the directory table.
-  const std::vector<StringRef> &MCDwarfDirs =
+  const SmallVectorImpl<StringRef> &MCDwarfDirs =
     context.getMCDwarfDirs(CUID);
   for (unsigned i = 0; i < MCDwarfDirs.size(); i++) {
     MCOS->EmitBytes(MCDwarfDirs[i]); // the DirectoryName
@@ -307,7 +307,7 @@
   MCOS->EmitIntValue(0, 1); // Terminate the directory list
 
   // Second the file table.
-  const std::vector<MCDwarfFile *> &MCDwarfFiles =
+  const SmallVectorImpl<MCDwarfFile *> &MCDwarfFiles =
     MCOS->getContext().getMCDwarfFiles(CUID);
   for (unsigned i = 1; i < MCDwarfFiles.size(); i++) {
     MCOS->EmitBytes(MCDwarfFiles[i]->getName()); // FileName
@@ -643,13 +643,13 @@
 
   // AT_name, the name of the source file.  Reconstruct from the first directory
   // and file table entries.
-  const std::vector<StringRef> &MCDwarfDirs =
+  const SmallVectorImpl<StringRef> &MCDwarfDirs =
     context.getMCDwarfDirs();
   if (MCDwarfDirs.size() > 0) {
     MCOS->EmitBytes(MCDwarfDirs[0]);
     MCOS->EmitBytes("/");
   }
-  const std::vector<MCDwarfFile *> &MCDwarfFiles =
+  const SmallVectorImpl<MCDwarfFile *> &MCDwarfFiles =
     MCOS->getContext().getMCDwarfFiles();
   MCOS->EmitBytes(MCDwarfFiles[1]->getName());
   MCOS->EmitIntValue(0, 1); // NULL byte to terminate the string.