cmake: Invent add_llvm_fuzzer to set up fuzzer targets

This moves the cmake configuration for fuzzers in LLVM to a new macro,
add_llvm_fuzzer. This will make it easier to keep things consistent
while implementing llvm.org/pr34314.

I've also made a couple of minor functional changes here:

- the fuzzers now use add_llvm_executable rather than add_llvm_tool.
  This means they won't create install targets and stuff like that,
  because those made little sense for these fuzzers.
- I've grouped these under "Fuzzers" rather than in with "Tools" for
  people who build with IDEs.

llvm-svn: 312200

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
index 1c922651b13..8c884db4706 100644
--- a/llvm/cmake/modules/AddLLVM.cmake
+++ b/llvm/cmake/modules/AddLLVM.cmake
@@ -892,6 +892,13 @@ macro(add_llvm_utility name)
   endif()
 endmacro(add_llvm_utility name)
 
+macro(add_llvm_fuzzer name)
+  if( LLVM_USE_SANITIZE_COVERAGE )
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")
+    add_llvm_executable(${name} ${ARGN})
+    set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
+  endif()
+endmacro()
 
 macro(add_llvm_target target_name)
   include_directories(BEFORE