Resolver: Do not use assert() to notify user input error.

llvm-svn: 189775

1 files changed, 5 insertions, 1 deletions

diff --git a/lld/lib/Core/Resolver.cpp b/lld/lib/Core/Resolver.cpp
index 36e66ec966c..d56f7d1067f 100644
--- a/lld/lib/Core/Resolver.cpp
+++ b/lld/lib/Core/Resolver.cpp
@@ -293,7 +293,11 @@ void Resolver::deadStripOptimize() {
   // Or, use list of names that are dead stip roots.
   for (const StringRef &name : _context.deadStripRoots()) {
     const Atom *symAtom = _symbolTable.findByName(name);
-    assert(symAtom->definition() != Atom::definitionUndefined);
+    if (symAtom->definition() == Atom::definitionUndefined) {
+      llvm::errs() << "Dead strip root '" << symAtom->name()
+                   << "' is not defined\n";
+      return;
+    }
     _deadStripRoots.insert(symAtom);
   }