WIP - seems to work for point reads/writes

CMakeLists.txt

@@ -13,11 +13,29 @@ else()
   add_link_options(-Wl,--gc-sections)
 endif()
 
+include(CheckIncludeFileCXX)
+include(CMakePushCheckState)
+
+cmake_push_check_state()
+# Fall back to non-simd implementations if avx isn't available
+list(APPEND CMAKE_REQUIRED_FLAGS -mavx)
+check_include_file_cxx("immintrin.h" HAS_AVX)
+if(HAS_AVX)
+  add_compile_options(-mavx)
+  add_compile_definitions(HAS_AVX)
+endif()
+cmake_pop_check_state()
+
+check_include_file_cxx("arm_neon.h" HAS_ARM_NEON)
+if (HAS_ARM_NEON)
+  add_compile_definitions(HAS_ARM_NEON)
+endif()
+
 add_library(conflict_set SHARED ConflictSet.cpp)
 target_include_directories(conflict_set PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
 target_compile_options(conflict_set PRIVATE -fno-exceptions -fvisibility=hidden)
-target_link_options(conflict_set PRIVATE -nodefaultlibs -lc -fvisibility=hidden)
 if (CMAKE_BUILD_TYPE STREQUAL Release)
+  target_link_options(conflict_set PRIVATE -nodefaultlibs -lc -fvisibility=hidden)
   add_custom_command(TARGET conflict_set POST_BUILD COMMAND ${CMAKE_STRIP} -x $<TARGET_FILE:conflict_set>)
 endif()
 
@@ -25,7 +43,7 @@ if (NOT APPLE)
   target_link_options(conflict_set PRIVATE "LINKER:--version-script=${CMAKE_CURRENT_SOURCE_DIR}/linker.map")
 endif()
 
-set(TEST_FLAGS -Wall -Wextra -Wpedantic -Wunreachable-code -Werror -UNDEBUG)
+set(TEST_FLAGS -Wall -Wextra -Wpedantic -Wunreachable-code -UNDEBUG)
 
 include(CTest)
 
@@ -42,8 +60,10 @@ add_test(NAME conflict_set_test COMMAND conflict_set_test)
 # fuzz test
 set(FUZZ_FLAGS "-fsanitize=fuzzer-no-link,address,undefined")
 include(CheckCXXCompilerFlag)
+cmake_push_check_state()
 set(CMAKE_REQUIRED_LINK_OPTIONS ${FUZZ_FLAGS})
 check_cxx_compiler_flag(${FUZZ_FLAGS} HAS_LIB_FUZZER)
+cmake_pop_check_state()
 
 if (HAS_LIB_FUZZER)
   add_executable(conflict_set_fuzz_test ConflictSet.cpp)