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| author |   Sirshak Das <sirshak.das@arm.com> | 2018-07-27 01:13:33 -0500 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-08-01 10:52:56 +0000 |
| commit | afc725afaed47f90f48f148c5c8f74348e0aaf23 (patch) | |
| tree | 87009bbf214cac01e66034694bed1a54a945733f | |
| parent | 1c7bf5d41737984907e8bad1dc832eb6cb1d6288 (diff) | |
Add support for shuffle vector intrinsic via Neon in ARM
This adds byte_swap (variant of shuffle) and shuffle vector intrinsic
for ARM based on Neon, concuring with same signature as SSE vector
intrinsic.
Change-Id: I386fd2b1dcc83654e4ad9f90a6065d7736e4ce5c
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
| -rw-r--r-- | src/vppinfra/vector_neon.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/vppinfra/vector_neon.h b/src/vppinfra/vector_neon.h index 7ca3c2c4221..451c531d52d 100644 --- a/src/vppinfra/vector_neon.h +++ b/src/vppinfra/vector_neon.h @@ -118,6 +118,22 @@ foreach_neon_vec128i foreach_neon_vec128u #undef _ /* *INDENT-ON* */ +static_always_inline u16x8 +u16x8_byte_swap (u16x8 v) +{ + const u8 swap_pattern[] = { + 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, + }; + u8x16 swap = vld1q_u8 (swap_pattern); + return (u16x8) vqtbl1q_u8 ((u8x16) v, swap); +} + +static_always_inline u8x16 +u8x16_shuffle (u8x16 v, u8x16 m) +{ + return (u8x16) vqtbl1q_u8 (v, m); +} + #define CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE #define CLIB_VEC128_SPLAT_DEFINED #endif /* included_vector_neon_h */ |