From d471fc9509159a0cec4f6a98672cc7a7d2227588 Mon Sep 17 00:00:00 2001 From: hexcoder Date: Wed, 10 Mar 2021 00:07:33 +0100 Subject: add version dependency --- instrumentation/README.ngram.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/instrumentation/README.ngram.md b/instrumentation/README.ngram.md index de3ba432..da61ef32 100644 --- a/instrumentation/README.ngram.md +++ b/instrumentation/README.ngram.md @@ -10,8 +10,8 @@ by Jinghan Wang, et. al. Note that the original implementation (available [here](https://github.com/bitsecurerlab/afl-sensitive)) is built on top of AFL's QEMU mode. -This is essentially a port that uses LLVM vectorized instructions to achieve -the same results when compiling source code. +This is essentially a port that uses LLVM vectorized instructions (available from +llvm versions 4.0.1 and higher) to achieve the same results when compiling source code. In math the branch coverage is performed as follows: `map[current_location ^ prev_location[0] >> 1 ^ prev_location[1] >> 1 ^ ... up to n-1`] += 1` -- cgit 1.4.1