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

1 files changed, 39 insertions, 0 deletions

diff --git a/test/fuzzer/PrintFuncTest.cpp b/test/fuzzer/PrintFuncTest.cpp
new file mode 100644
index 000000000000..d41b46239245
--- /dev/null
+++ b/test/fuzzer/PrintFuncTest.cpp
@@ -0,0 +1,39 @@
+// 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 the string "Hi!".
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <iostream>
+
+extern "C" {
+__attribute__((noinline))
+void FunctionC(const uint8_t *Data, size_t Size) {
+  if (Size > 3 && Data[3] == 'Z') {
+    static bool PrintedOnce = false;
+    if (!PrintedOnce) {
+      std::cout << "BINGO\n";
+      PrintedOnce = true;
+    }
+  }
+}
+
+__attribute__((noinline))
+void FunctionB(const uint8_t *Data, size_t Size) {
+  if (Size > 2 && Data[2] == 'Z')
+    FunctionC(Data, Size);
+}
+__attribute__((noinline))
+void FunctionA(const uint8_t *Data, size_t Size) {
+  if (Size > 1 && Data[1] == 'U')
+    FunctionB(Data, Size);
+}
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size > 0 && Data[0] == 'F')
+    FunctionA(Data, Size);
+  return 0;
+}
+