[libFuzzer] new experimental feature: value profiling. Profiles values that affect control flow and treats new values as new coverage.
llvm-svn: 278839
diff --git a/llvm/lib/Fuzzer/test/SingleStrcmpTest.cpp b/llvm/lib/Fuzzer/test/SingleStrcmpTest.cpp
new file mode 100644
index 0000000..73470b5
--- /dev/null
+++ b/llvm/lib/Fuzzer/test/SingleStrcmpTest.cpp
@@ -0,0 +1,17 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Simple test for a fuzzer. The fuzzer must find a particular string.
+#include <cstring>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+ char *S = (char*)Data;
+ if (Size >= 7 && !strcmp(S, "qwerty")) {
+ fprintf(stderr, "BINGO\n");
+ exit(1);
+ }
+ return 0;
+}