Add "ARMv8-A" to the supporting list of ARM architecture.
diff --git a/src/base/arm_instruction_set_select.h b/src/base/arm_instruction_set_select.h
index a47e6bb..6fde685 100644
--- a/src/base/arm_instruction_set_select.h
+++ b/src/base/arm_instruction_set_select.h
@@ -35,7 +35,12 @@
#ifndef ARM_INSTRUCTION_SET_SELECT_H_
#define ARM_INSTRUCTION_SET_SELECT_H_
-#if defined(__ARM_ARCH_7__) || \
+#if defined(__ARM_ARCH_8A__)
+# define ARMV8 1
+#endif
+
+#if defined(ARMV8) || \
+ defined(__ARM_ARCH_7__) || \
defined(__ARM_ARCH_7R__) || \
defined(__ARM_ARCH_7A__)
# define ARMV7 1