Add compiler options for ARM64 SVE targets in DYNAMIC_ARCH builds

Author: martin-frbg

cmake/system.cmake

@@ -280,7 +280,29 @@ if (DEFINED TARGET)
   if (${TARGET} STREQUAL POWER8)
     set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -mcpu=power8 -mtune=power8 -mvsx -fno-fast-math")
   endif()
+
+if (${TARGET} STREQUAL NEOVERSEV1)
+    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
+    if (${GCC_VERSION} VERSION_GREATER 10.4 OR ${GCC_VERSION} VERSION_EQUAL 10.4)
+      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.4-a+sve -mtune=neoverse-v1")
+    else ()
+	    message(FATAL_ERROR "Compiler ${CMAKE_C_COMPILER} ${GCC_VERSION} does not support Neoverse V1.")
+    endif()
+  endif()
+  if (${TARGET} STREQUAL NEOVERSEN2)
+    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
+    if (${GCC_VERSION} VERSION_GREATER 10.4 OR ${GCC_VERSION} VERSION_EQUAL 10.4)
+      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.5-a+sve+sve2+bf16 -mtune=neoverse-n2")
+    else ()
+	    message(FATAL_ERROR "Compiler $${CMAKE_C_COMPILER} {GCC_VERSION} does not support Neoverse N2.")
+    endif()
+  endif()
+  if (${TARGET} STREQUAL ARMV8SVE)
+      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.2-a+sve")
+  endif()
+
 endif()
+
 if (DEFINED BINARY)
   message(STATUS "Compiling a ${BINARY}-bit binary.")
 endif ()