Do now allow InlineAlways pass to remove dead functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58744 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/Inliner.cpp b/lib/Transforms/IPO/Inliner.cpp
index 2321047..418b2b7 100644
--- a/lib/Transforms/IPO/Inliner.cpp
+++ b/lib/Transforms/IPO/Inliner.cpp
@@ -204,6 +204,13 @@
// doFinalization - Remove now-dead linkonce functions at the end of
// processing to avoid breaking the SCC traversal.
bool Inliner::doFinalization(CallGraph &CG) {
+ return removeDeadFunctions(CG);
+}
+
+ /// removeDeadFunctions - Remove dead functions that are not included in
+ /// DNR (Do Not Remove) list.
+bool Inliner::removeDeadFunctions(CallGraph &CG,
+ SmallPtrSet<const Function *, 16> *DNR) {
std::set<CallGraphNode*> FunctionsToRemove;
// Scan for all of the functions, looking for ones that should now be removed
@@ -215,6 +222,9 @@
// them.
F->removeDeadConstantUsers();
+ if (DNR && DNR->count(F))
+ continue;
+
if ((F->hasLinkOnceLinkage() || F->hasInternalLinkage()) &&
F->use_empty()) {