From 00e25c5459dc73eafac570509e141186159d47a9 Mon Sep 17 00:00:00 2001
From: George Karpenkov <ekarpenkov@apple.com>
Date: Mon, 7 Aug 2017 20:56:11 +0000
Subject: [PATCH] Do not instrument libFuzzer itself when built with
 -DLLVM_USE_SANITIZE_COVERAGE

Fixes regression from https://reviews.llvm.org/D36295

Differential Revision: https://reviews.llvm.org/D36428

llvm-svn: 310305
---
 llvm/lib/Fuzzer/CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/llvm/lib/Fuzzer/CMakeLists.txt b/llvm/lib/Fuzzer/CMakeLists.txt
index ef05b15..daff0e6 100644
--- a/llvm/lib/Fuzzer/CMakeLists.txt
+++ b/llvm/lib/Fuzzer/CMakeLists.txt
@@ -24,6 +24,11 @@ endif()
 set(LIBFUZZER_ENABLE ${LIBFUZZER_ENABLED_CHECK} CACHE BOOL "Build libFuzzer and its tests")
 set(LIBFUZZER_ENABLE_TESTS OFF CACHE BOOL "Build libFuzzer and its tests")
 
+if (LLVM_USE_SANITIZE_COVERAGE)
+  set(CMAKE_CXX_FLAGS
+    "${CMAKE_CXX_FLAGS} -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters -Werror")
+endif()
+
 if (LIBFUZZER_ENABLE)
   add_library(LLVMFuzzerNoMainObjects OBJECT
       FuzzerCrossOver.cpp
-- 
2.7.4