// Processor architecture
#if defined(__arm__) && !defined(__ARM_ARCH)
- // GCC 4.6 does not defined __ARM_ARCH
-# if defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
+// GCC 4.6 does not defined __ARM_ARCH
+# if defined(__ARM_ARCH_8A__) || defined(__ARM_ARCH_8S__) || defined(__aarch64__) || defined(__ARM_ARCH_ISA_A64)
+# define __ARM_ARCH 8
+# elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7S__)
# define __ARM_ARCH 7
# else
# define __ARM_ARCH 5
# define CDS_BUILD_BITS 64
# define CDS_PROCESSOR__NAME "IBM PowerPC64"
# define CDS_PROCESSOR__NICK "ppc64"
-#elif defined(__arm__) && __SIZEOF_POINTER__ == 4 && __ARM_ARCH >= 7
+#elif defined(__arm__) && __SIZEOF_POINTER__ == 4 && __ARM_ARCH >= 7 && __ARM_ARCH < 8
# define CDS_PROCESSOR_ARCH CDS_PROCESSOR_ARM7
# define CDS_BUILD_BITS 32
# define CDS_PROCESSOR__NAME "ARM v7"
# define CDS_PROCESSOR__NICK "arm7"
+#elif defined(__arm__) && __ARM_ARCH >= 8
+# define CDS_PROCESSOR_ARCH CDS_PROCESSOR_ARM8
+# define CDS_BUILD_BITS 64
+# define CDS_PROCESSOR__NAME "ARM v8"
+# define CDS_PROCESSOR__NICK "arm8"
#else
# if defined(CDS_USE_LIBCDS_ATOMIC)
# error "Libcds does not support atomic implementation for the processor architecture. Try to use C++11-compatible compiler and remove CDS_USE_LIBCDS_ATOMIC flag from compiler command line"
# endif
#else
# ifndef __declspec
-# define __declspec( _x )
+# define __declspec(_x)
# endif
#endif