From 311cc8378e7e4ddf2f944963dcaf05e8a843cf83 Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Sat, 28 May 2016 04:19:46 +0000
Subject: [PATCH] [libFuzzer] fix a failure that occurs when running individual
 inputs

llvm-svn: 271095
---
 llvm/lib/Fuzzer/FuzzerLoop.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Fuzzer/FuzzerLoop.cpp b/llvm/lib/Fuzzer/FuzzerLoop.cpp
index 6f10c6390f38..fb75a9bb2230 100644
--- a/llvm/lib/Fuzzer/FuzzerLoop.cpp
+++ b/llvm/lib/Fuzzer/FuzzerLoop.cpp
@@ -175,6 +175,7 @@ void Fuzzer::StaticDeathCallback() {
 }
 
 void Fuzzer::DumpCurrentUnit(const char *Prefix) {
+  if (!CurrentUnitData) return;  // Happens when running individual inputs.
   size_t UnitSize = CurrentUnitSize;
   if (UnitSize <= kMaxUnitSizeToPrint) {
     PrintHexArray(CurrentUnitData, UnitSize, "\n");