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-rw-r--r--lib/Transforms/IPO/GlobalDCE.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/GlobalDCE.cpp b/lib/Transforms/IPO/GlobalDCE.cpp
index 201f320..901295d 100644
--- a/lib/Transforms/IPO/GlobalDCE.cpp
+++ b/lib/Transforms/IPO/GlobalDCE.cpp
@@ -179,6 +179,9 @@ void GlobalDCE::GlobalIsNeeded(GlobalValue *G) {
// any globals used will be marked as needed.
Function *F = cast<Function>(G);
+ if (F->hasPrefixData())
+ MarkUsedGlobalsAsNeeded(F->getPrefixData());
+
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I)
for (User::op_iterator U = I->op_begin(), E = I->op_end(); U != E; ++U)