1 files changed, 27 insertions, 0 deletions
diff --git a/lib/Fuzzer/test/EquivalenceBTest.cpp b/lib/Fuzzer/test/EquivalenceBTest.cpp
new file mode 100644
index 000000000000..b1de208b57f6
--- /dev/null
+++ b/lib/Fuzzer/test/EquivalenceBTest.cpp
@@ -0,0 +1,27 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+
+// Test for libFuzzer's "equivalence" fuzzing, part B.
+extern "C" void LLVMFuzzerAnnounceOutput(const uint8_t *Data, size_t Size);
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  // fprintf(stderr, "B %zd\n", Size);
+  uint8_t Result[50];
+  if (Size > 50) Size = 50;
+  for (size_t i = 0; i < Size; i++)
+    Result[Size - i - 1] = Data[i];
+
+  // Be a bit different from EquivalenceATest
+  if (Size > 10 && Data[5] == 'B' && Data[6] == 'C' && Data[7] == 'D') {
+    static int c;
+    if (!c)
+      fprintf(stderr, "ZZZZZZZ\n");
+    c = 1;
+    Result[2]++;
+  }
+
+  LLVMFuzzerAnnounceOutput(Result, Size);
+  return 0;
+}