teach various passes about blockaddress. We no longer
crash on any clang tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/GlobalDCE.cpp b/lib/Transforms/IPO/GlobalDCE.cpp
index af4711e..cfab6b2 100644
--- a/lib/Transforms/IPO/GlobalDCE.cpp
+++ b/lib/Transforms/IPO/GlobalDCE.cpp
@@ -191,13 +191,13 @@
void GlobalDCE::MarkUsedGlobalsAsNeeded(Constant *C) {
if (GlobalValue *GV = dyn_cast<GlobalValue>(C))
- GlobalIsNeeded(GV);
- else {
- // Loop over all of the operands of the constant, adding any globals they
- // use to the list of needed globals.
- for (User::op_iterator I = C->op_begin(), E = C->op_end(); I != E; ++I)
- MarkUsedGlobalsAsNeeded(cast<Constant>(*I));
- }
+ return GlobalIsNeeded(GV);
+
+ // Loop over all of the operands of the constant, adding any globals they
+ // use to the list of needed globals.
+ for (User::op_iterator I = C->op_begin(), E = C->op_end(); I != E; ++I)
+ if (Constant *OpC = dyn_cast<Constant>(*I))
+ MarkUsedGlobalsAsNeeded(OpC);
}
// RemoveUnusedGlobalValue - Loop over all of the uses of the specified