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Windows: Fix crash on aliased globals

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This commit is contained in:
Frederich Munch 2016-09-28 20:17:23 -04:00 committed by sftnight
parent 7ee942f14e
commit 2897531390
1 changed files with 3 additions and 1 deletions
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4
lib/Interpreter/DeclUnloader.cpp
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@ -274,7 +274,9 @@ bool DeclUnloader::VisitRedeclarable(clang::Redeclarable<T>* R, DeclContext* DC)
MarkConstant(GV->getInitializer());
} else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(G)) {
// The target of a global alias as referenced.
MarkConstant(GA->getAliasee());
// GA->getAliasee() is sometimes returning NULL on Windows
if (llvm::Constant* C = GA->getAliasee())
MarkConstant(C);
} else {
// Otherwise this must be a function object. We have to scan the body
// of the function looking for constants and global values which are