Move libFuzzer to compiler_rt.
Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.
Differential Revision: https://reviews.llvm.org/D36908
llvm-svn: 311407
diff --git a/compiler-rt/test/fuzzer/ShrinkControlFlowTest.cpp b/compiler-rt/test/fuzzer/ShrinkControlFlowTest.cpp
new file mode 100644
index 0000000..1957c1f
--- /dev/null
+++ b/compiler-rt/test/fuzzer/ShrinkControlFlowTest.cpp
@@ -0,0 +1,31 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Test that we can find the minimal item in the corpus (3 bytes: "FUZ").
+#include <cstddef>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+static volatile int Sink;
+
+void Foo() {
+ Sink++;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+ int8_t Ids[256];
+ memset(Ids, -1, sizeof(Ids));
+ for (size_t i = 0; i < Size; i++)
+ if (Ids[Data[i]] == -1)
+ Ids[Data[i]] = i;
+ int F = Ids[(unsigned char)'F'];
+ int U = Ids[(unsigned char)'U'];
+ int Z = Ids[(unsigned char)'Z'];
+ if (F >= 0 && U > F && Z > U) {
+ Foo();
+ }
+ return 0;
+}
+