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DebugInfoFinder: Check for null imported entities

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Don't use the accessors in `DIImportedEntity` on a null pointer.  (A WIP
patch to make `DIDescriptor` accessors more strict crashes here
otherwise.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232833 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-03-20 19:13:53 +00:00
parent 14d8dbd37d
commit c867853c90
1 changed files with 2 additions and 0 deletions
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2
lib/IR/DebugInfo.cpp
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@ -674,6 +674,8 @@ void DebugInfoFinder::processModule(const Module &M) {
DIArray Imports = CU.getImportedEntities();
for (unsigned i = 0, e = Imports.getNumElements(); i != e; ++i) {
DIImportedEntity Import = DIImportedEntity(Imports.getElement(i));
if (!Import)
continue;
DIDescriptor Entity = Import.getEntity().resolve(TypeIdentifierMap);
if (Entity.isType())
processType(DIType(Entity));