[libFuzzer] implement strncmp hook for data-flow-guided fuzzing (w/ and w/o dfsan...

[oota-llvm.git] / lib / Fuzzer / test / InfiniteTest.cpp

diff --git a/lib/Fuzzer/test/InfiniteTest.cpp b/lib/Fuzzer/test/InfiniteTest.cpp
index 7c5c8c1271372f416612b5f0842ed6d3c3a91495..b6d174ffdc90fb50d6e1e42ceec2af4888e526de 100644 (file)
--- a/lib/Fuzzer/test/InfiniteTest.cpp
+++ b/lib/Fuzzer/test/InfiniteTest.cpp
@@ -6,6 +6,8 @@
 
 static volatile int Sink;
 
+static volatile int One = 1;
+
 extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   if (Size > 0 && Data[0] == 'H') {
     Sink = 1;
@@ -13,6 +15,8 @@ extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
       Sink = 2;
       if (Size > 2 && Data[2] == '!') {
         Sink = 2;
+        while (One)
+          ;
       }
     }
   }