vendor/compiler-rt/compiler-rt-trunk-r321017

1 files changed, 24 insertions, 0 deletions

diff --git a/test/fuzzer/RepeatedMemcmp.cpp b/test/fuzzer/RepeatedMemcmp.cpp
new file mode 100644
index 0000000000000..18369deac3b00
--- /dev/null
+++ b/test/fuzzer/RepeatedMemcmp.cpp
@@ -0,0 +1,24 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  int Matches1 = 0;
+  for (size_t i = 0; i + 2 < Size; i += 3)
+    if (!memcmp(Data + i, "foo", 3))
+      Matches1++;
+  int Matches2 = 0;
+  for (size_t i = 0; i + 2 < Size; i += 3)
+    if (!memcmp(Data + i, "bar", 3))
+      Matches2++;
+
+  if (Matches1 > 10 && Matches2 > 10) {
+    fprintf(stderr, "BINGO!\n");
+    exit(1);
+  }
+  return 0;
+}