Debug info: Modify DebugLocEntry::addValue to take multiple values so it

only has to sort/unique values once per batch.

llvm-svn: 215386

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 57dda88b002..a669077f08b 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1288,8 +1288,9 @@ DwarfDebug::buildLocationList(SmallVectorImpl<DebugLocEntry> &DebugLoc,
     if (!couldMerge) {
       // Need to add a new DebugLocEntry. Add all values from still
       // valid non-overlapping pieces.
-      for (auto Range : OpenRanges)
-        Loc.addValue(Range.second);
+      if (OpenRanges.size())
+        Loc.addValues(OpenRanges);
+
       DebugLoc.push_back(std::move(Loc));
     }