commit 63fe2593ae55b8d9a5fadd8636d7b206c44885a5
author Nico Weber <nicolasweber@gmx.de> Sun Apr 14 23:08:12 2019 +0000
committer Nico Weber <nicolasweber@gmx.de> Sun Apr 14 23:08:12 2019 +0000
tree 6b6d6b9e8826e0df9b56dd7d58d0b86d9c910f01
parent 5b92eb007b8fd99bfeb343e1291348d0b1684497

llvm-undname: Fix another crash-on-invalid found by oss-fuzz

llvm-svn: 358363

llvm/lib/Demangle/MicrosoftDemangle.cpp

diff --git a/llvm/lib/Demangle/MicrosoftDemangle.cpp b/llvm/lib/Demangle/MicrosoftDemangle.cpp
index 719e716..882913a 100644
--- a/llvm/lib/Demangle/MicrosoftDemangle.cpp
+++ b/llvm/lib/Demangle/MicrosoftDemangle.cpp
@@ -654,7 +654,10 @@
 IdentifierNode *
 Demangler::demangleFunctionIdentifierCode(StringView &MangledName,
                                           FunctionIdentifierCodeGroup Group) {
-  assert(!MangledName.empty());
+  if (MangledName.empty()) {
+    Error = true;
+    return nullptr;
+  }
   switch (Group) {
   case FunctionIdentifierCodeGroup::Basic:
     switch (char CH = MangledName.popFront()) {