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-rw-r--r--tools/bugpoint/ExtractFunction.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index 452ddbc..ac89362 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -78,6 +78,11 @@ Module *BugDriver::deleteInstructionFromProgram(Instruction *I,
///
Module *BugDriver::performFinalCleanups() const {
Module *M = CloneModule(Program);
+
+ // Make all functions external, so GlobalDCE doesn't delete them...
+ for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
+ I->setLinkage(GlobalValue::ExternalLinkage);
+
PassManager CleanupPasses;
CleanupPasses.add(createFunctionResolvingPass());
CleanupPasses.add(createGlobalDCEPass());