NEON is enabled.
Currently, ARM and AArch64 back ends do not support ACLE 2.0 fully. Both
-back ends support CRC32 intrinsics from @file{arm_acle.h}. The ARM back end's
-16-bit floating-point Advanced SIMD intrinsics currently comply to ACLE v1.1.
+back ends support CRC32 intrinsics and the ARM back end supports the
+Coprocessor intrinsics, all from @file{arm_acle.h}. The ARM back end's 16-bit
+floating-point Advanced SIMD intrinsics currently comply to ACLE v1.1.
AArch64's back end does not have support for 16-bit floating point Advanced SIMD
intrinsics yet.