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-rw-r--r--llvm/tools/dsymutil/DwarfLinker.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/tools/dsymutil/DwarfLinker.cpp b/llvm/tools/dsymutil/DwarfLinker.cpp
index 47d08504786..d839f07657b 100644
--- a/llvm/tools/dsymutil/DwarfLinker.cpp
+++ b/llvm/tools/dsymutil/DwarfLinker.cpp
@@ -2884,6 +2884,7 @@ void DwarfLinker::patchLineTableForUnit(CompileUnit &Unit,
if (StopAddress != -1ULL && !Seq.empty()) {
// Insert end sequence row with the computed end address, but
// the same line as the previous one.
+ Seq.reserve(Seq.size() + 1);
Seq.emplace_back(Seq.back());
Seq.back().Address = StopAddress;
Seq.back().EndSequence = 1;
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