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Diffstat (limited to 'test/fuzzer/ShrinkValueProfileTest.cpp')
-rw-r--r-- | test/fuzzer/ShrinkValueProfileTest.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/fuzzer/ShrinkValueProfileTest.cpp b/test/fuzzer/ShrinkValueProfileTest.cpp new file mode 100644 index 000000000..86e4e3cb0 --- /dev/null +++ b/test/fuzzer/ShrinkValueProfileTest.cpp @@ -0,0 +1,22 @@ +// 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 uint32_t Sink; + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { + if (Size < sizeof(uint32_t)) return 0; + uint32_t X, Y; + size_t Offset = Size < 8 ? 0 : Size / 2; + memcpy(&X, Data + Offset, sizeof(uint32_t)); + memcpy(&Y, "FUZZ", sizeof(uint32_t)); + Sink = X == Y; + return 0; +} + |