Add Code Coverage support using CMake (#531)

CMakeLists.txt

@@ -39,6 +39,8 @@ option(DISABLE_MSVC_ITERATOR_DEBUGGING "Disable iterator debugging in Debug conf
 
 option(ENABLE_CODE_ANALYSIS "Use Static Code Analysis on build" OFF)
 
+option(ENABLE_CODE_COVERAGE "Build with code-coverage" OFF)
+
 option(USE_PREBUILT_SHADERS "Use externally built HLSL shaders" OFF)
 
 option(NO_WCHAR_T "Use legacy wide-character as unsigned short" OFF)
@@ -568,7 +570,7 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 
     if((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.37)
        AND (NOT (${DIRECTX_ARCH} MATCHES "^arm"))
-       AND ((${DIRECTX_ARCH} MATCHES "x64") OR (CMAKE_SIZEOF_VOID_P EQUAL 8)))
+       AND ((${DIRECTX_ARCH} STREQUAL "x64") OR (CMAKE_SIZEOF_VOID_P EQUAL 8)))
        # Enable since DirectXTex library has a lot of large switch statements
       target_compile_options(${PROJECT_NAME} PRIVATE /jumptablerdata)
     endif()
@@ -659,6 +661,10 @@ if(WIN32 AND (NOT WINDOWS_STORE) AND (NOT (DEFINED XBOX_CONSOLE_TARGET)))
     if(BUILD_TESTING AND (EXISTS "${CMAKE_CURRENT_LIST_DIR}/Tests/CMakeLists.txt"))
         enable_testing()
         add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/Tests)
+
+        if(ENABLE_CODE_COVERAGE AND (DEFINED COV_COMPILER_SWITCHES))
+          target_compile_options(${PROJECT_NAME} PRIVATE ${COV_COMPILER_SWITCHES})
+        endif()
     elseif(BUILD_FUZZING AND (EXISTS "${CMAKE_CURRENT_LIST_DIR}/Tests/fuzzloaders/CMakeLists.txt"))
         message(STATUS "Building for fuzzing")
         add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/Tests/fuzzloaders)