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-rw-r--r--llvm/lib/MC/MCDwarf.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp
index bda0ec14599..9e5d9ff73c7 100644
--- a/llvm/lib/MC/MCDwarf.cpp
+++ b/llvm/lib/MC/MCDwarf.cpp
@@ -435,7 +435,8 @@ unsigned MCDwarfLineTableHeader::getFile(StringRef &Directory,
return IterBool.first->second;
}
// Make space for this FileNumber in the MCDwarfFiles vector if needed.
- MCDwarfFiles.resize(FileNumber + 1);
+ if (FileNumber >= MCDwarfFiles.size())
+ MCDwarfFiles.resize(FileNumber + 1);
// Get the new MCDwarfFile slot for this FileNumber.
MCDwarfFile &File = MCDwarfFiles[FileNumber];
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