Fix simd_test rename and arch detect on gcc

Author: Auburn

cmake/ArchDetect.cmake

@@ -12,15 +12,12 @@ function(target_architecture output_arch output_arch_ver)
         # #error preprocessor directives... but by exploiting the preprocessor in this
         # way, we can detect the correct target architecture even when cross-compiling,
         # since the program itself never needs to be run (only the compiler/preprocessor)
-        try_run(
-            run_result_unused
+        try_compile(
             compile_result_unused
             "${CMAKE_BINARY_DIR}"
             "${FastSIMD_SOURCE_DIR}/cmake/ArchDetect.cpp"
-            COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT
-            CMAKE_FLAGS CMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}
+            OUTPUT_VARIABLE COMPILE_OUTPUT
         )
-    
         #message(STATUS ${COMPILE_OUTPUT})
 
         # Parse the architecture name from the compiler output

cmake/ArchDetect.cpp

@@ -3,8 +3,15 @@
 #define TO_LITERAL_( string ) #string
 #define TO_LITERAL( string ) TO_LITERAL_( string )
 
-#if !defined( TEST_FEATURE_SET_ACTIVE ) || FASTSIMD_FEATURE_VALUE( TEST_FEATURE_SET_ACTIVE ) > 0
+#if !defined( TEST_FEATURE_SET_ACTIVE )
+#define FASTSIMD_DETECT_SUCCESS
+#else
+#if FASTSIMD_FEATURE_VALUE( TEST_FEATURE_SET_ACTIVE ) > 0
+#define FASTSIMD_DETECT_SUCCESS
+#endif
+#endif
 
+#ifdef FASTSIMD_DETECT_SUCCESS
 static_assert( 0, "FASTSIMD_ARCH<" TO_LITERAL( FASTSIMD_ARCH_NAME() ) ">" );
 
 // Needed for MacOS clang, it doesn't evaluate macros in static assert errors

tests/test.cpp

@@ -67,11 +67,11 @@ struct TestRunner
     };
 
     template<FastSIMD::FeatureSet HEAD, FastSIMD::FeatureSet... TAIL>
-    struct TestOrganiser<FastSIMD::FeatureSetList<HEAD, TAIL...>>
+    struct TestOrganiser<FastSIMD::FeatureSetList<0, HEAD, TAIL...>>
     { 
         static TestCollection GetCollections()
         {
-            TestCollection collections = TestOrganiser<FastSIMD::FeatureSetList<TAIL...>>::GetCollections();
+            TestCollection collections = TestOrganiser<FastSIMD::FeatureSetList<0, TAIL...>>::GetCollections();
 
             if( HEAD <= FastSIMD::DetectCpuMaxFeatureSet() )
             {
@@ -280,7 +280,7 @@ struct TestRunner
     {
         std::cout << "Starting Tests - Register Size: " << RegisterBytes * 8 << " (" << RegisterBytes << "b)" << std::endl;
 
-        TestSet testSet = TestOrganiser<FastSIMD::test_simd::CompiledFeatureSets>::GetSet();
+        TestSet testSet = TestOrganiser<FastSIMD::simd_test::CompiledFeatureSets>::GetSet();
 
         for( auto& test : testSet )
         {