1 files changed, 41 insertions, 0 deletions
diff --git a/compiler-rt/test/fuzzer/Labels20Test.cpp b/compiler-rt/test/fuzzer/Labels20Test.cpp
new file mode 100644
index 00000000000..0422a54e6e1
--- /dev/null
+++ b/compiler-rt/test/fuzzer/Labels20Test.cpp
@@ -0,0 +1,41 @@
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+// Simple test for a fuzzer.
+// Needs to find a string "FUZZxxxxxxxxxxxxMxxE", where 'x' is any byte.
+#include <assert.h>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <cstdio>
+
+extern "C" bool Func1(const uint8_t *Data, size_t Size);
+extern "C" bool Func2(const uint8_t *Data, size_t Size);
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size >= 20
+      && Data[0] == 'F'
+      && Data[1] == 'U'
+      && Data[2] == 'Z'
+      && Data[3] == 'Z'
+      && Func1(Data, Size)
+      && Func2(Data, Size)) {
+        fprintf(stderr, "BINGO\n");
+        abort();
+  }
+  return 0;
+}
+
+extern "C"
+__attribute__((noinline))
+bool Func1(const uint8_t *Data, size_t Size) {
+  // assumes Size >= 5, doesn't check it.
+  return Data[16] == 'M';
+}
+
+extern "C"
+__attribute__((noinline))
+bool Func2(const uint8_t *Data, size_t Size) {
+  return Size >= 20 && Data[19] == 'E';
+}