ref: 2c6445ea9c198f7a68c795cccb7d6f3348c7715f
dir: /codec/encoder/core/arm/memory_neon.S/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifdef HAVE_NEON
#include "arm_arch_common_macro.S"
WELS_ASM_FUNC_BEGIN WelsSetMemZero_neon
veor q0, q0
cmp r1, #32
beq mem_zero_32_neon_start
blt mem_zero_24_neon_start
mem_zero_loop:
subs r1, r1, #64
vst1.64 {q0}, [r0]!
vst1.64 {q0}, [r0]!
vst1.64 {q0}, [r0]!
vst1.64 {q0}, [r0]!
bne mem_zero_loop
bx lr
mem_zero_32_neon_start:
vst1.64 {q0}, [r0]!
vst1.64 {q0}, [r0]!
bx lr
mem_zero_24_neon_start:
vst1.64 {q0}, [r0]!
vst1.64 {d0}, [r0]!
WELS_ASM_FUNC_END
#endif