[CMake] Cleanup CMake rules after r219302. NFC.

llvm-svn: 219825

compiler-rt/CMakeLists.txt

@@ -198,10 +198,6 @@ else()
   option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
 endif()
 
-# Check if compiler-rt is built with libc++.
-find_flag_in_string("${CMAKE_CXX_FLAGS}" "-stdlib=libc++"
-                    COMPILER_RT_USES_LIBCXX)
-
 option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
 # COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
 pythonize_bool(COMPILER_RT_DEBUG)
@@ -296,14 +292,10 @@ if(APPLE)
     list(APPEND SANITIZER_COMMON_SUPPORTED_DARWIN_OS iossim)
   endif()
 
-  if(COMPILER_RT_USES_LIBCXX)
-    set(SANITIZER_MIN_OSX_VERSION 10.7)
-  else()
-    set(SANITIZER_MIN_OSX_VERSION 10.7)
-  endif()
+  set(SANITIZER_MIN_OSX_VERSION 10.7)
   set(CMAKE_OSX_DEPLOYMENT_TARGET "") # We're setting the flag manually below.
   set(DARWIN_osx_CFLAGS -mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION})
-  set(DARWIN_iossim_CFLAGS 
+  set(DARWIN_iossim_CFLAGS
     -mios-simulator-version-min=7.0 -isysroot ${IOSSIM_SDK_DIR})
   set(DARWIN_osx_LINKFLAGS)
   set(DARWIN_iossim_LINKFLAGS

compiler-rt/cmake/Modules/CompilerRTUtils.cmake

@@ -15,18 +15,6 @@ function(set_target_link_flags target)
   set_property(TARGET ${target} PROPERTY LINK_FLAGS "${argstring}")
 endfunction()
 
-# Check if a given flag is present in a space-separated flag_string.
-# Store the result in out_var.
-function(find_flag_in_string flag_string flag out_var)
-  string(REPLACE " " ";" flag_list "${flag_string}")
-  list(FIND flag_list ${flag} flag_pos)
-  if(NOT flag_pos EQUAL -1)
-    set(${out_var} TRUE PARENT_SCOPE)
-  else()
-    set(${out_var} FALSE PARENT_SCOPE)
-  endif()
-endfunction()
-
 # Set the variable var_PYBOOL to True if var holds a true-ish string,
 # otherwise set it to False.
 macro(pythonize_bool var)