commit 5ebfa2d181dccee5e23421a41910a7a1851d358e
author Devang Patel <dpatel@apple.com> Fri Nov 06 18:24:05 2009 +0000
committer Devang Patel <dpatel@apple.com> Fri Nov 06 18:24:05 2009 +0000
tree a02f7ec0c860ca99a9a0f89e431238d9ea098c3e
parent f7807f6b9e9a215f365ce98a4c252aced4f651fb

Tolerate invalid derived type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86269 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/DebugInfo.cpp

diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index 7c1cc35..24b5ad4 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -409,6 +409,10 @@
       Tag == dwarf::DW_TAG_const_type || Tag == dwarf::DW_TAG_volatile_type ||
       Tag == dwarf::DW_TAG_restrict_type) {
     DIType BaseType = getTypeDerivedFrom();
+    // If this type is not derived from any type then take conservative 
+    // approach.
+    if (BaseType.isNull())
+      return getSizeInBits();
     if (BaseType.isDerivedType())
       return DIDerivedType(BaseType.getNode()).getOriginalTypeSize();
     else