MCSymbol: Make print() robust against empty names

This shouldn't happen, but it's nice not to abort when printing broken machine
functions.

llvm-svn: 238287

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCSymbol.cpp b/llvm/lib/MC/MCSymbol.cpp
index 0009decef9b..b2034eaf517 100644
--- a/llvm/lib/MC/MCSymbol.cpp
+++ b/llvm/lib/MC/MCSymbol.cpp
@@ -50,6 +50,10 @@ void MCSymbol::print(raw_ostream &OS) const {
   // some targets support quoting names with funny characters.  If the name
   // contains a funny character, then print it quoted.
   StringRef Name = getName();
+  if (Name.empty()) {
+    OS << "\"\"";
+    return;
+  }
   if (!NameNeedsQuoting(Name)) {
     OS << Name;
     return;