[PATCH] D50006: [LLD] Fixed crash in type merging

[Alexandre Ganea via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL338308: This fixes a crash when a second pass is required for the Codeview Type merging… (authored by aganea, committed by ).

Repository:
  rL LLVM

https://reviews.llvm.org/D50006

Files:
  llvm/trunk/lib/DebugInfo/CodeView/TypeStreamMerger.cpp


Index: llvm/trunk/lib/DebugInfo/CodeView/TypeStreamMerger.cpp
===================================================================
--- llvm/trunk/lib/DebugInfo/CodeView/TypeStreamMerger.cpp
+++ llvm/trunk/lib/DebugInfo/CodeView/TypeStreamMerger.cpp
@@ -226,7 +226,10 @@
   if (IsSecondPass && MapPos >= Map.size()) {
     // FIXME: Print a more useful error. We can give the current record and the
     // index that we think its pointing to.
-    LastError = joinErrors(std::move(*LastError), errorCorruptRecord());
+    if (LastError)
+      LastError = joinErrors(std::move(*LastError), errorCorruptRecord());
+    else
+      LastError = errorCorruptRecord();
   }
 
   ++NumBadIndices;


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