From 91c7c70b360072082025aa4b029a83c5ba222802 Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Mon, 18 Mar 2019 22:20:47 +0000
Subject: [PATCH] [libFuzzer] document -len_control

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356422 91177308-0d34-0410-b5e6-96231b3b80d8
---
 docs/LibFuzzer.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/LibFuzzer.rst b/docs/LibFuzzer.rst
index 1698439b8c4..49f72f63ee3 100644
--- a/docs/LibFuzzer.rst
+++ b/docs/LibFuzzer.rst
@@ -258,6 +258,10 @@ The most important command line options are:
 ``-max_len``
   Maximum length of a test input. If 0 (the default), libFuzzer tries to guess
   a good value based on the corpus (and reports it).
+``len_control``
+  Try generating small inputs first, then try larger inputs over time.
+  Specifies the rate at which the length limit is increased (smaller == faster).
+  Default is 100. If 0, immediately try inputs with size up to max_len.
 ``-timeout``
   Timeout in seconds, default 1200. If an input takes longer than this timeout,
   the process is treated as a failure case.