diff options
| author |   Sirshak Das <sirshak.das@arm.com> | 2018-08-22 12:02:04 +0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-09-11 08:40:46 +0000 |
| commit | 6da42decd4e0d1ef978af9ea8f3850da375a45b1 (patch) | |
| tree | c14b5edf6db0508d204a6925479d06e296484b94 /src/vppinfra/vector_neon.h | |
| parent | 8e5d5db24ed72da265cda75bb3f23d35530109e8 (diff) | |
Replacing vtbl NEON intrinsic with rev NEON intrinsic for byte_swap.
Using rev16 vector intrinsic to reverse byteorder in each word
independently.
Change-Id: I071c40780baffe0bda614ec5d9dd92858f574b0d
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Brian Brooks <brian.brooks@arm.com>
Reviewed-by: Yi He <yi.he@arm.com>
Verified-by: Lijian Zhang <lijian.zhang@arm.com>
Diffstat (limited to 'src/vppinfra/vector_neon.h')
| -rw-r--r-- | src/vppinfra/vector_neon.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/vppinfra/vector_neon.h b/src/vppinfra/vector_neon.h index 2c3578c1f35..40e062eb94b 100644 --- a/src/vppinfra/vector_neon.h +++ b/src/vppinfra/vector_neon.h @@ -121,11 +121,7 @@ foreach_neon_vec128i foreach_neon_vec128u 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); + return (u16x8) vrev16q_u8 ((u8x16) v); } static_always_inline u8x16 |