# define FOLLY_X64 0
#endif
+#if defined(__arm__)
+#define FOLLY_ARM 1
+#else
+#define FOLLY_ARM 0
+#endif
+
#if defined(__aarch64__)
# define FOLLY_AARCH64 1
#else
#endif
namespace folly {
+constexpr bool kIsArchArm = FOLLY_ARM == 1;
constexpr bool kIsArchAmd64 = FOLLY_X64 == 1;
constexpr bool kIsArchAArch64 = FOLLY_AARCH64 == 1;
constexpr bool kIsArchPPC64 = FOLLY_PPC64 == 1;