From 55975672e833f3cf15938eb70168d0a3fe62d8be Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Thu, 15 Oct 2015 16:18:27 +0000
Subject: [PATCH] Prevent assertion with "llc -debug" and anonymous symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250425 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/MC/MCExpr.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/MC/MCExpr.cpp b/lib/MC/MCExpr.cpp
index 916e505c4b9..9d01e13e0a2 100644
--- a/lib/MC/MCExpr.cpp
+++ b/lib/MC/MCExpr.cpp
@@ -43,7 +43,7 @@ void MCExpr::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
     const MCSymbol &Sym = SRE.getSymbol();
     // Parenthesize names that start with $ so that they don't look like
     // absolute names.
-    bool UseParens = Sym.getName()[0] == '$';
+    bool UseParens = Sym.getName().size() && Sym.getName()[0] == '$';
     if (UseParens) {
       OS << '(';
       Sym.print(OS, MAI);
-- 
2.34.1