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Fix FileCheck crash when empty prefix is passed.
[oota-llvm.git]
/
utils
/
FileCheck
/
FileCheck.cpp
diff --git
a/utils/FileCheck/FileCheck.cpp
b/utils/FileCheck/FileCheck.cpp
index 9e6a6a2c8ab4df2fad392458945a3383d76275d9..9245e1143ad4068141b983bc2fd74617b6bf5e1e 100644
(file)
--- 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;