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/* simd-common-aarch64.h - Common macros for AArch64 SIMD code
*
* Copyright (C) 2024 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GCRY_SIMD_COMMON_AARCH64_H
#define GCRY_SIMD_COMMON_AARCH64_H
#include <config.h>
#define memory_barrier_with_vec(a) __asm__("" : "+w"(a) :: "memory")
#define clear_vec_regs() __asm__ volatile("movi v0.16b, #0;\n" \
"movi v1.16b, #0;\n" \
"movi v2.16b, #0;\n" \
"movi v3.16b, #0;\n" \
"movi v4.16b, #0;\n" \
"movi v5.16b, #0;\n" \
"movi v6.16b, #0;\n" \
"movi v7.16b, #0;\n" \
/* v8-v15 are ABI callee saved and \
* get cleared by function \
* epilog when used. */ \
"movi v16.16b, #0;\n" \
"movi v17.16b, #0;\n" \
"movi v18.16b, #0;\n" \
"movi v19.16b, #0;\n" \
"movi v20.16b, #0;\n" \
"movi v21.16b, #0;\n" \
"movi v22.16b, #0;\n" \
"movi v23.16b, #0;\n" \
"movi v24.16b, #0;\n" \
"movi v25.16b, #0;\n" \
"movi v26.16b, #0;\n" \
"movi v27.16b, #0;\n" \
"movi v28.16b, #0;\n" \
"movi v29.16b, #0;\n" \
"movi v30.16b, #0;\n" \
"movi v31.16b, #0;\n" \
::: "memory", "v0", "v1", "v2", \
"v3", "v4", "v5", "v6", "v7", \
"v16", "v17", "v18", "v19", \
"v20", "v21", "v22", "v23", \
"v24", "v25", "v26", "v27", \
"v28", "v29", "v30", "v31")
#endif /* GCRY_SIMD_COMMON_AARCH64_H */
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