[ARM][GCC][PATCHv2 2/3] Add missing Poly64_t intrinsics to GCC

[Tamar Christina]

Hi all,

This patch (2 of 3) adds the following NEON intrinsics to
the ARM back-end of GCC:

* vget_lane_p64

Added new tests for these and ran regression tests on aarch64-none-linux-gnu
and on arm-none-linux-gnueabihf.

Ok for trunk?

Thanks,
Tamar

gcc/
2016-11-04  Tamar Christina  <tamar.christ...@arm.com>

        * config/arm/arm_neon.h (vget_lane_p64): New.

diff --git a/gcc/config/arm/arm_neon.h b/gcc/config/arm/arm_neon.h
index 3898ff7302dc3f21e6b50a8a7b835033c1ae2021..ab29da74e0971cc09ee63b561ecc79e9762e3fb4 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -5411,6 +5411,15 @@ vget_lane_s64 (int64x1_t __a, const int __b)
   return (int64_t)__builtin_neon_vget_lanedi (__a, __b);
 }
 
+#pragma GCC push_options
+#pragma GCC target ("fpu=crypto-neon-fp-armv8")
+__extension__ static __inline poly64_t __attribute__ ((__always_inline__))
+vget_lane_p64 (poly64x1_t __a, const int __b)
+{
+  return (poly64_t)__builtin_neon_vget_lanedi ((int64x1_t) __a, __b);
+}
+
+#pragma GCC pop_options
 __extension__ static __inline uint64_t __attribute__ ((__always_inline__))
 vget_lane_u64 (uint64x1_t __a, const int __b)
 {