Don't emit a directory entry for the value in DW_AT_comp_dir, that is always
implied by directory index zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143570 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index b280fbb..d5ce696 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -302,6 +302,10 @@
MCSymbol *DwarfDebugLocSectionSym;
MCSymbol *FunctionBeginSym, *FunctionEndSym;
+ // As an optimization, there is no need to emit an entry in the directory
+ // table for the same directory as DW_at_comp_dir.
+ StringRef CompilationDir;
+
private:
/// assignAbbrevNumber - Define a unique number for the abbreviation.