From 570be9365ff2bc7e889af40242ad647f33654968 Mon Sep 17 00:00:00 2001 From: Eli Bendersky Date: Tue, 29 Jul 2014 20:30:53 +0000 Subject: [PATCH] Fix FileCheck crash when empty prefix is passed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214210 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/FileCheck/FileCheck.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/utils/FileCheck/FileCheck.cpp b/utils/FileCheck/FileCheck.cpp index 9e6a6a2c8ab..9245e1143ad 100644 --- a/utils/FileCheck/FileCheck.cpp +++ b/utils/FileCheck/FileCheck.cpp @@ -1212,6 +1212,10 @@ static bool ValidateCheckPrefixes() { I != E; ++I) { StringRef Prefix(*I); + // Reject empty prefixes. + if (Prefix == "") + return false; + if (!PrefixSet.insert(Prefix)) return false; -- 2.34.1