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-rw-r--r--src/isa-l/igzip/igzip_update_histogram.asm574
1 files changed, 574 insertions, 0 deletions
diff --git a/src/isa-l/igzip/igzip_update_histogram.asm b/src/isa-l/igzip/igzip_update_histogram.asm
new file mode 100644
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--- /dev/null
+++ b/src/isa-l/igzip/igzip_update_histogram.asm
@@ -0,0 +1,574 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; Copyright(c) 2011-2018 Intel Corporation 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.
+; * Neither the name of Intel Corporation nor the names of its
+; contributors may be used to endorse or promote products derived
+; from this software without specific prior written permission.
+;
+; 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
+; OWNER 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.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+%include "options.asm"
+
+%include "lz0a_const.asm"
+%include "data_struct2.asm"
+%include "bitbuf2.asm"
+%include "huffman.asm"
+%include "igzip_compare_types.asm"
+%include "reg_sizes.asm"
+
+%include "stdmac.asm"
+
+extern rfc1951_lookup_table
+_len_to_code_offset equ 0
+
+%define LAST_BYTES_COUNT 3 ; Bytes to prevent reading out of array bounds
+%define LA_STATELESS 280 ; Max number of bytes read in loop2 rounded up to 8 byte boundary
+%define LIT_LEN 286
+%define DIST_LEN 30
+%define HIST_ELEM_SIZE 8
+
+%ifdef DEBUG
+%macro MARK 1
+global %1
+%1:
+%endm
+%else
+%macro MARK 1
+%endm
+%endif
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+%define file_start rdi
+%define file_length rsi
+%define histogram rdx
+%define rfc_lookup r9
+%define f_i r10
+
+%define curr_data rax
+
+%define tmp2 rcx
+
+%define dist rbx
+%define dist_code2 rbx
+
+%define dist2 r12
+%define dist_code r12
+
+%define len rbp
+%define len_code rbp
+%define hash3 rbp
+
+%define curr_data2 r8
+%define len2 r8
+%define tmp4 r8
+
+%define tmp1 r11
+
+%define tmp3 r13
+
+%define hash r14
+
+%define hash2 r15
+
+%define xtmp0 xmm0
+%define xtmp1 xmm1
+%define xdata xmm2
+
+%define ytmp0 ymm0
+%define ytmp1 ymm1
+
+%if(ARCH == 01)
+%define vtmp0 xtmp0
+%define vtmp1 xtmp1
+%define V_LENGTH 16
+%else
+%define vtmp0 ytmp0
+%define vtmp1 ytmp1
+%define V_LENGTH 32
+%endif
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+_eob_count_offset equ 0 ; local variable (8 bytes)
+f_end_i_mem_offset equ 8
+gpr_save_mem_offset equ 16 ; gpr save area (8*8 bytes)
+xmm_save_mem_offset equ 16 + 8*8 ; xmm save area (4*16 bytes) (16 byte aligned)
+stack_size equ 2*8 + 8*8 + 4*16 + 8
+;;; 8 because stack address is odd multiple of 8 after a function call and
+;;; we want it aligned to 16 bytes
+
+%ifidn __OUTPUT_FORMAT__, elf64
+%define arg0 rdi
+%define arg1 rsi
+%define arg2 rdx
+
+%macro FUNC_SAVE 0
+%ifdef ALIGN_STACK
+ push rbp
+ mov rbp, rsp
+ sub rsp, stack_size
+ and rsp, ~15
+%else
+ sub rsp, stack_size
+%endif
+
+ mov [rsp + gpr_save_mem_offset + 0*8], rbx
+ mov [rsp + gpr_save_mem_offset + 1*8], rbp
+ mov [rsp + gpr_save_mem_offset + 2*8], r12
+ mov [rsp + gpr_save_mem_offset + 3*8], r13
+ mov [rsp + gpr_save_mem_offset + 4*8], r14
+ mov [rsp + gpr_save_mem_offset + 5*8], r15
+%endm
+
+%macro FUNC_RESTORE 0
+ mov rbx, [rsp + gpr_save_mem_offset + 0*8]
+ mov rbp, [rsp + gpr_save_mem_offset + 1*8]
+ mov r12, [rsp + gpr_save_mem_offset + 2*8]
+ mov r13, [rsp + gpr_save_mem_offset + 3*8]
+ mov r14, [rsp + gpr_save_mem_offset + 4*8]
+ mov r15, [rsp + gpr_save_mem_offset + 5*8]
+
+%ifndef ALIGN_STACK
+ add rsp, stack_size
+%else
+ mov rsp, rbp
+ pop rbp
+%endif
+%endm
+%endif
+
+%ifidn __OUTPUT_FORMAT__, win64
+%define arg0 rcx
+%define arg1 rdx
+%define arg2 r8
+
+%macro FUNC_SAVE 0
+%ifdef ALIGN_STACK
+ push rbp
+ mov rbp, rsp
+ sub rsp, stack_size
+ and rsp, ~15
+%else
+ sub rsp, stack_size
+%endif
+
+ mov [rsp + gpr_save_mem_offset + 0*8], rbx
+ mov [rsp + gpr_save_mem_offset + 1*8], rsi
+ mov [rsp + gpr_save_mem_offset + 2*8], rdi
+ mov [rsp + gpr_save_mem_offset + 3*8], rbp
+ mov [rsp + gpr_save_mem_offset + 4*8], r12
+ mov [rsp + gpr_save_mem_offset + 5*8], r13
+ mov [rsp + gpr_save_mem_offset + 6*8], r14
+ mov [rsp + gpr_save_mem_offset + 7*8], r15
+%endm
+
+%macro FUNC_RESTORE 0
+ mov rbx, [rsp + gpr_save_mem_offset + 0*8]
+ mov rsi, [rsp + gpr_save_mem_offset + 1*8]
+ mov rdi, [rsp + gpr_save_mem_offset + 2*8]
+ mov rbp, [rsp + gpr_save_mem_offset + 3*8]
+ mov r12, [rsp + gpr_save_mem_offset + 4*8]
+ mov r13, [rsp + gpr_save_mem_offset + 5*8]
+ mov r14, [rsp + gpr_save_mem_offset + 6*8]
+ mov r15, [rsp + gpr_save_mem_offset + 7*8]
+
+%ifndef ALIGN_STACK
+ add rsp, stack_size
+%else
+ mov rsp, rbp
+ pop rbp
+%endif
+%endm
+%endif
+
+
+_lit_len_offset equ 0
+_dist_offset equ (8 * LIT_LEN)
+_hash_offset equ (_dist_offset + 8 * DIST_LEN)
+
+
+%macro len_to_len_code 3
+%define %%len_code %1 ; Output
+%define %%len %2 ; Input
+%define %%rfc_lookup %3
+ movzx %%len_code, byte [%%rfc_lookup + _len_to_code_offset + %%len]
+ or %%len_code, 0x100
+%endm
+
+;;; Clobbers rcx and dist
+%macro dist_to_dist_code 2
+%define %%dist_code %1 ; Output code associated with dist
+%define %%dist_coded %1d
+%define %%dist %2d ; Input dist
+ dec %%dist
+ mov %%dist_coded, %%dist
+ bsr ecx, %%dist_coded
+ dec ecx
+ SHRX %%dist_code, %%dist_code, rcx
+ lea %%dist_coded, [%%dist_coded + 2*ecx]
+
+ cmp %%dist, 1
+ cmovle %%dist_coded, %%dist
+%endm
+
+;;; Clobbers rcx and dist
+%macro dist_to_dist_code2 2
+%define %%dist_code %1 ; Output code associated with dist
+%define %%dist_coded %1d
+%define %%dist %2d ; Input -(dist - 1)
+ neg %%dist
+ mov %%dist_coded, %%dist
+ bsr ecx, %%dist_coded
+ dec ecx
+ SHRX %%dist_code, %%dist_code, rcx
+ lea %%dist_coded, [%%dist_coded + 2*ecx]
+
+ cmp %%dist, 1
+ cmovle %%dist_coded, %%dist
+%endm
+
+; void isal_update_histogram
+global isal_update_histogram_ %+ ARCH
+isal_update_histogram_ %+ ARCH %+ :
+ FUNC_SAVE
+
+%ifnidn file_start, arg0
+ mov file_start, arg0
+%endif
+%ifnidn file_length, arg1
+ mov file_length, arg1
+%endif
+%ifnidn histogram, arg2
+ mov histogram, arg2
+%endif
+ mov f_i, 0
+ cmp file_length, 0
+ je exit_ret ; If nothing to do then exit
+
+ mov tmp1, qword [histogram + _lit_len_offset + 8*256]
+ inc tmp1
+ mov [rsp + _eob_count_offset], tmp1
+
+ lea rfc_lookup, [rfc1951_lookup_table]
+
+ ;; Init hash_table
+ PXOR vtmp0, vtmp0, vtmp0
+ mov rcx, (IGZIP_LVL0_HASH_SIZE - V_LENGTH)
+init_hash_table:
+ MOVDQU [histogram + _hash_offset + 2 * rcx], vtmp0
+ MOVDQU [histogram + _hash_offset + 2 * (rcx + V_LENGTH / 2)], vtmp0
+ sub rcx, V_LENGTH
+ jge init_hash_table
+
+ sub file_length, LA_STATELESS
+ cmp file_length, 0
+ jle end_loop_2
+
+
+ ;; Load first literal into histogram
+ mov curr_data, [file_start + f_i]
+ compute_hash hash, curr_data
+ and hash %+ d, LVL0_HASH_MASK
+ mov [histogram + _hash_offset + 2 * hash], f_i %+ w
+ and curr_data, 0xff
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * curr_data]
+ inc f_i
+
+ ;; Setup to begin loop 2
+ MOVDQU xdata, [file_start + f_i]
+ mov curr_data, [file_start + f_i]
+ mov curr_data2, curr_data
+ compute_hash hash, curr_data
+ shr curr_data2, 8
+ compute_hash hash2, curr_data2
+
+ and hash2 %+ d, LVL0_HASH_MASK
+ and hash, LVL0_HASH_MASK
+loop2:
+ xor dist, dist
+ xor dist2, dist2
+ xor tmp3, tmp3
+
+ lea tmp1, [file_start + f_i]
+
+ MOVQ curr_data, xdata
+ PSRLDQ xdata, 1
+
+ ;; Load possible look back distances and update hash data
+ mov dist %+ w, f_i %+ w
+ sub dist, 1
+ sub dist %+ w, word [histogram + _hash_offset + 2 * hash]
+ mov [histogram + _hash_offset + 2 * hash], f_i %+ w
+
+ add f_i, 1
+
+ mov dist2 %+ w, f_i %+ w
+ sub dist2, 1
+ sub dist2 %+ w, word [histogram + _hash_offset + 2 * hash2]
+ mov [histogram + _hash_offset + 2 * hash2], f_i %+ w
+
+ ;; Start computing hashes to be used in either the next loop or
+ ;; for updating the hash if a match is found
+ MOVQ curr_data2, xdata
+ MOVQ tmp2, xdata
+ shr curr_data2, 8
+ compute_hash hash, curr_data2
+
+ ;; Check if look back distances are valid. Load a junk distance of 1
+ ;; if the look back distance is too long for speculative lookups.
+ and dist %+ d, (D-1)
+ neg dist
+
+ and dist2 %+ d, (D-1)
+ neg dist2
+
+ shr tmp2, 16
+ compute_hash hash2, tmp2
+
+ ;; Check for long len/dist matches (>7)
+ mov len, curr_data
+ xor len, [tmp1 + dist - 1]
+ jz compare_loop
+
+ and hash %+ d, LVL0_HASH_MASK
+ and hash2 %+ d, LVL0_HASH_MASK
+
+ MOVQ len2, xdata
+ xor len2, [tmp1 + dist2]
+ jz compare_loop2
+
+ ;; Specutively load the code for the first literal
+ movzx tmp1, curr_data %+ b
+ shr curr_data, 8
+
+ lea tmp3, [f_i + 1]
+
+ ;; Check for len/dist match for first literal
+ test len %+ d, 0xFFFFFFFF
+ jz len_dist_huffman_pre
+
+ ;; Store first literal
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * tmp1]
+
+ ;; Check for len/dist match for second literal
+ test len2 %+ d, 0xFFFFFFFF
+ jnz lit_lit_huffman
+len_dist_lit_huffman_pre:
+ ;; Calculate repeat length
+ tzcnt len2, len2
+ shr len2, 3
+
+len_dist_lit_huffman:
+ MOVQ curr_data, xdata
+ shr curr_data, 24
+ compute_hash hash3, curr_data
+
+ ;; Store updated hashes
+ mov [histogram + _hash_offset + 2 * hash], tmp3 %+ w
+ add tmp3,1
+ mov [histogram + _hash_offset + 2 * hash2], tmp3 %+ w
+ add tmp3, 1
+
+ add f_i, len2
+
+ MOVDQU xdata, [file_start + f_i]
+ mov curr_data, [file_start + f_i]
+ mov tmp1, curr_data
+ compute_hash hash, curr_data
+
+ and hash3, LVL0_HASH_MASK
+ mov [histogram + _hash_offset + 2 * hash3], tmp3 %+ w
+
+ dist_to_dist_code2 dist_code2, dist2
+
+ len_to_len_code len_code, len2, rfc_lookup
+
+ shr tmp1, 8
+ compute_hash hash2, tmp1
+
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * len_code]
+ inc qword [histogram + _dist_offset + HIST_ELEM_SIZE * dist_code2]
+
+ and hash2 %+ d, LVL0_HASH_MASK
+ and hash, LVL0_HASH_MASK
+
+ cmp f_i, file_length
+ jl loop2
+ jmp end_loop_2
+ ;; encode as dist/len
+
+len_dist_huffman_pre:
+ tzcnt len, len
+ shr len, 3
+
+len_dist_huffman:
+ mov [histogram + _hash_offset + 2 * hash], tmp3 %+ w
+ add tmp3,1
+ mov [histogram + _hash_offset + 2 * hash2], tmp3 %+ w
+
+ dec f_i
+ add f_i, len
+
+ MOVDQU xdata, [file_start + f_i]
+ mov curr_data, [file_start + f_i]
+ mov tmp1, curr_data
+ compute_hash hash, curr_data
+
+ dist_to_dist_code2 dist_code, dist
+
+ len_to_len_code len_code, len, rfc_lookup
+
+ shr tmp1, 8
+ compute_hash hash2, tmp1
+
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * len_code]
+ inc qword [histogram + _dist_offset + HIST_ELEM_SIZE * dist_code]
+
+ and hash2 %+ d, LVL0_HASH_MASK
+ and hash, LVL0_HASH_MASK
+
+ cmp f_i, file_length
+ jl loop2
+ jmp end_loop_2
+
+lit_lit_huffman:
+ MOVDQU xdata, [file_start + f_i + 1]
+ and curr_data, 0xff
+ add f_i, 1
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * curr_data]
+
+ cmp f_i, file_length
+ jl loop2
+
+end_loop_2:
+ add file_length, LA_STATELESS - LAST_BYTES_COUNT
+ cmp f_i, file_length
+ jge final_bytes
+
+loop2_finish:
+ mov curr_data %+ d, dword [file_start + f_i]
+ compute_hash hash, curr_data
+ and hash %+ d, LVL0_HASH_MASK
+
+ ;; Calculate possible distance for length/dist pair.
+ xor dist, dist
+ mov dist %+ w, f_i %+ w
+ sub dist %+ w, word [histogram + _hash_offset + 2 * hash]
+ mov [histogram + _hash_offset + 2 * hash], f_i %+ w
+
+ ;; Check if look back distance is valid (the dec is to handle when dist = 0)
+ dec dist
+ cmp dist %+ d, (D-1)
+ jae encode_literal_finish
+ inc dist
+
+ ;; Check if look back distance is a match
+ lea tmp4, [file_length + LAST_BYTES_COUNT]
+ sub tmp4, f_i
+ lea tmp1, [file_start + f_i]
+ mov tmp2, tmp1
+ sub tmp2, dist
+ compare tmp4, tmp1, tmp2, len, tmp3
+
+ ;; Limit len to maximum value of 258
+ mov tmp2, 258
+ cmp len, 258
+ cmova len, tmp2
+ cmp len, SHORTEST_MATCH
+ jb encode_literal_finish
+
+ add f_i, len
+
+ len_to_len_code len_code, len, rfc_lookup
+ dist_to_dist_code dist_code, dist
+
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * len_code]
+ inc qword [histogram + _dist_offset + HIST_ELEM_SIZE * dist_code]
+
+ cmp f_i, file_length
+ jl loop2_finish
+ jmp final_bytes
+
+encode_literal_finish:
+ ;; Encode literal
+ and curr_data %+ d, 0xFF
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * curr_data]
+
+ ;; Setup for next loop
+ add f_i, 1
+ cmp f_i, file_length
+ jl loop2_finish
+
+final_bytes:
+ add file_length, LAST_BYTES_COUNT
+final_bytes_loop:
+ cmp f_i, file_length
+ jge end
+ movzx curr_data, byte [file_start + f_i]
+ inc qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * curr_data]
+ inc f_i
+ jmp final_bytes_loop
+
+end:
+ ;; Handle eob at end of stream
+ mov tmp1, [rsp + _eob_count_offset]
+ mov qword [histogram + _lit_len_offset + HIST_ELEM_SIZE * 256], tmp1
+
+exit_ret:
+ FUNC_RESTORE
+ ret
+
+compare_loop:
+ and hash %+ d, LVL0_HASH_MASK
+ and hash2 %+ d, LVL0_HASH_MASK
+ lea tmp2, [tmp1 + dist - 1]
+
+ mov len2, 250
+ mov len, 8
+ compare250 tmp1, tmp2, len, len2, tmp3, ytmp0, ytmp1
+
+ lea tmp3, [f_i + 1]
+ jmp len_dist_huffman
+
+compare_loop2:
+ add tmp1, 1
+ lea tmp2, [tmp1 + dist2 - 1]
+
+ mov len, 250
+ mov len2, 8
+ compare250 tmp1, tmp2, len2, len, tmp3, ytmp0, ytmp1
+
+ and curr_data, 0xff
+ inc qword [histogram + _lit_len_offset + 8 * curr_data]
+ lea tmp3, [f_i + 1]
+ jmp len_dist_lit_huffman
+
+section .data
+ align 32
+D_vector:
+ dw -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF
+ dw -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF
+ dw -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF
+ dw -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF, -(D + 1) & 0xFFFF
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 05:28:05 +0000