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157 lines
4.5 KiB
157 lines
4.5 KiB
/**************************************************************************** |
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* Assembly testing and benchmarking tool |
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* Copyright (c) 2015 Martin Storsjo |
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* Copyright (c) 2015 Janne Grunau |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
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*****************************************************************************/ |
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#include "libavutil/aarch64/asm.S" |
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const register_init |
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.quad 0x21f86d66c8ca00ce |
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.quad 0x75b6ba21077c48ad |
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.quad 0xed56bb2dcb3c7736 |
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.quad 0x8bda43d3fd1a7e06 |
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.quad 0xb64a9c9e5d318408 |
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.quad 0xdf9a54b303f1d3a3 |
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.quad 0x4a75479abd64e097 |
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.quad 0x249214109d5d1c88 |
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.quad 0x1a1b2550a612b48c |
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.quad 0x79445c159ce79064 |
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.quad 0x2eed899d5a28ddcd |
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.quad 0x86b2536fcd8cf636 |
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.quad 0xb0856806085e7943 |
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.quad 0x3f2bf84fc0fcca4e |
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.quad 0xacbd382dcf5b8de2 |
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.quad 0xd229e1f5b281303f |
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.quad 0x71aeaff20b095fd9 |
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.quad 0xab63e2e11fa38ed9 |
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endconst |
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const error_message |
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.asciz "failed to preserve register" |
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endconst |
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// max number of args used by any asm function. |
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#define MAX_ARGS 15 |
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#define CLOBBER_STACK ((8*MAX_ARGS + 15) & ~15) |
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function checkasm_stack_clobber, export=1 |
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mov x3, sp |
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mov x2, #CLOBBER_STACK |
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1: |
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stp x0, x1, [sp, #-16]! |
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subs x2, x2, #16 |
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b.gt 1b |
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mov sp, x3 |
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ret |
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endfunc |
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#define ARG_STACK ((8*(MAX_ARGS - 8) + 15) & ~15) |
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function checkasm_checked_call, export=1 |
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stp x29, x30, [sp, #-16]! |
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mov x29, sp |
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stp x19, x20, [sp, #-16]! |
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stp x21, x22, [sp, #-16]! |
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stp x23, x24, [sp, #-16]! |
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stp x25, x26, [sp, #-16]! |
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stp x27, x28, [sp, #-16]! |
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stp d8, d9, [sp, #-16]! |
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stp d10, d11, [sp, #-16]! |
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stp d12, d13, [sp, #-16]! |
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stp d14, d15, [sp, #-16]! |
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movrel x9, register_init |
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ldp d8, d9, [x9], #16 |
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ldp d10, d11, [x9], #16 |
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ldp d12, d13, [x9], #16 |
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ldp d14, d15, [x9], #16 |
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ldp x19, x20, [x9], #16 |
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ldp x21, x22, [x9], #16 |
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ldp x23, x24, [x9], #16 |
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ldp x25, x26, [x9], #16 |
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ldp x27, x28, [x9], #16 |
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sub sp, sp, #ARG_STACK |
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.equ pos, 0 |
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.rept MAX_ARGS-8 |
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// Skip the first 8 args, that are loaded into registers |
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ldr x9, [x29, #16 + 8*8 + pos] |
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str x9, [sp, #pos] |
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.equ pos, pos + 8 |
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.endr |
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mov x12, x0 |
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ldp x0, x1, [x29, #16] |
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ldp x2, x3, [x29, #32] |
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ldp x4, x5, [x29, #48] |
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ldp x6, x7, [x29, #64] |
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blr x12 |
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add sp, sp, #ARG_STACK |
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stp x0, x1, [sp, #-16]! |
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movrel x9, register_init |
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movi v3.8h, #0 |
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.macro check_reg_neon reg1, reg2 |
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ldr q1, [x9], #16 |
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uzp1 v2.2d, v\reg1\().2d, v\reg2\().2d |
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eor v1.16b, v1.16b, v2.16b |
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orr v3.16b, v3.16b, v1.16b |
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.endm |
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check_reg_neon 8, 9 |
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check_reg_neon 10, 11 |
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check_reg_neon 12, 13 |
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check_reg_neon 14, 15 |
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uqxtn v3.8b, v3.8h |
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umov x3, v3.d[0] |
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.macro check_reg reg1, reg2 |
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ldp x0, x1, [x9], #16 |
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eor x0, x0, \reg1 |
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eor x1, x1, \reg2 |
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orr x3, x3, x0 |
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orr x3, x3, x1 |
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.endm |
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check_reg x19, x20 |
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check_reg x21, x22 |
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check_reg x23, x24 |
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check_reg x25, x26 |
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check_reg x27, x28 |
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cbz x3, 0f |
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movrel x0, error_message |
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bl X(checkasm_fail_func) |
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0: |
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ldp x0, x1, [sp], #16 |
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ldp d14, d15, [sp], #16 |
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ldp d12, d13, [sp], #16 |
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ldp d10, d11, [sp], #16 |
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ldp d8, d9, [sp], #16 |
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ldp x27, x28, [sp], #16 |
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ldp x25, x26, [sp], #16 |
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ldp x23, x24, [sp], #16 |
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ldp x21, x22, [sp], #16 |
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ldp x19, x20, [sp], #16 |
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ldp x29, x30, [sp], #16 |
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ret |
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endfunc
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