isa-l/crc/aarch64/crc32_gzip_refl_3crc_fold.S
Taiju Yamada 1187583a97 Fixes for aarch64 mac
- It should be fine to enable pmull always on Apple Silicon
- macOS 12+ is required for PMULL instruction.
- Changed the conditional macro to __APPLE__
- Rewritten dispatcher using sysctlbyname
- Use __USER_LABEL_PREFIX__
- Use __TEXT,__const as readonly section
- use ASM_DEF_RODATA macro
- fix func decl

Change-Id: I800593f21085d8187b480c8bb3ab2bd70c4a6974
Signed-off-by: Taiju Yamada <tyamada@bi.a.u-tokyo.ac.jp>
2022-10-28 08:27:26 -07:00

100 lines
3.0 KiB
ArmAsm

########################################################################
# Copyright(c) 2020 Arm Corporation All rights reserved.
#
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# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
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# from this software without specific prior written permission.
#
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#########################################################################
#include "crc32_aarch64_common.h"
.text
.align 6
.arch armv8-a+crc+crypto
.macro crc32_u64 dst,src,data
crc32x \dst,\src,\data
.endm
.macro crc32_u32 dst,src,data
crc32w \dst,\src,\data
.endm
.macro crc32_u16 dst,src,data
crc32h \dst,\src,\data
.endm
.macro crc32_u8 dst,src,data
crc32b \dst,\src,\data
.endm
.macro declare_var_vector_reg name:req,reg:req
q\name .req q\reg
v\name .req v\reg
s\name .req s\reg
d\name .req d\reg
.endm
BUF .req x1
ptr_crc0 .req x1
LEN .req x2
wCRC .req w0
crc0 .req w0
xcrc0 .req x0
crc1 .req w3
crc2 .req w4
xcrc1 .req x3
const_adr .req x3
ptr_crc1 .req x6
ptr_crc2 .req x7
crc0_data0 .req x9
crc0_data1 .req x10
crc1_data0 .req x11
crc1_data1 .req x12
crc2_data0 .req x13
crc2_data1 .req x14
wdata .req w3
data0 .req x3
data1 .req x4
data2 .req x5
data3 .req x6
declare_var_vector_reg tmp0,0
declare_var_vector_reg tmp1,1
declare_var_vector_reg const0,2
declare_var_vector_reg const1,3
/**
uint32_t crc32_gzip_refl(
uint32_t wCRC,
const unsigned char *BUF,
uint64_t LEN
);
*/
.global cdecl(crc32_gzip_refl_3crc_fold)
#ifndef __APPLE__
.type crc32_gzip_refl_3crc_fold, %function
#endif
cdecl(crc32_gzip_refl_3crc_fold):
crc32_3crc_fold crc32
#ifndef __APPLE__
.size crc32_gzip_refl_3crc_fold, .-crc32_gzip_refl_3crc_fold
#endif