[PATCH] D120610: [DebugInfo] Include DW_TAG_skeleton_unit when looking for parent UnitDie

[Wenlei He via Phabricator via llvm-commits]

wenlei created this revision.
wenlei added reviewers: dblaikie, ayermolo.
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`DIE::getUnitDie` looks up parent DIE until compile unit or type unit is found. However for skeleton CU with debug fission, we would have DW_TAG_skeleton_unit instead of DW_TAG_compile_unit as top level DIE.

This change fixes the look up so we can get DW_TAG_skeleton_unit as UnitDie for skeleton CU.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120610

Files:
  llvm/lib/CodeGen/AsmPrinter/DIE.cpp


Index: llvm/lib/CodeGen/AsmPrinter/DIE.cpp
===================================================================
--- llvm/lib/CodeGen/AsmPrinter/DIE.cpp
+++ llvm/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -204,6 +204,7 @@
   const DIE *p = this;
   while (p) {
     if (p->getTag() == dwarf::DW_TAG_compile_unit ||
+        p->getTag() == dwarf::DW_TAG_skeleton_unit ||
         p->getTag() == dwarf::DW_TAG_type_unit)
       return p;
     p = p->getParent();


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