[PATCH AArch64] Add a builtin for rbit(q?)_p8; add intrinsics and tests.
gcc/:
* config/aarch64/aarch64-simd.md (aarch64_rbit<mode>): New pattern.
* config/aarch64/aarch64-simd-builtins.def (rbit): New builtin.
* config/aarch64/arm_neon.h (vrbit_s8, vrbit_u8, vrbitq_s8, vrbitq_u8):
Replace temporary asm with call to builtin.
(vrbit_p8, vrbitq_p8): New functions.
gcc/testsuite/:
* gcc.target/aarch64/simd/vrbit_1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214943 138bc75d-0d04-0410-961f-82ee72b054a4