1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/ObjCopy/CommonConfig.cpp b/contrib/llvm-project/llvm/lib/ObjCopy/CommonConfig.cpp
index e85715d0c44c..f44e70d996b2 100644
--- a/contrib/llvm-project/llvm/lib/ObjCopy/CommonConfig.cpp
+++ b/contrib/llvm-project/llvm/lib/ObjCopy/CommonConfig.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ObjCopy/CommonConfig.h"
+#include "llvm/Support/Errc.h"
 
 namespace llvm {
 namespace objcopy {
@@ -38,6 +39,12 @@ NameOrPattern::create(StringRef Pattern, MatchStyle MS,
                          IsPositiveMatch);
   }
   case MatchStyle::Regex: {
+    Regex RegEx(Pattern);
+    std::string Err;
+    if (!RegEx.isValid(Err))
+      return createStringError(errc::invalid_argument,
+                               "cannot compile regular expression \'" +
+                                   Pattern + "\': " + Err);
     SmallVector<char, 32> Data;
     return NameOrPattern(std::make_shared<Regex>(
         ("^" + Pattern.ltrim('^').rtrim('$') + "$").toStringRef(Data)));