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Unified Diff: simd/jiss2int-64.asm

Issue 1953443002: Update to libjpeg_turbo 1.4.90 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Created 4 years, 7 months ago
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Index: simd/jiss2int-64.asm
diff --git a/simd/jiss2int-64.asm b/simd/jiss2int-64.asm
deleted file mode 100644
index 073081829ce84ac92f4839047c97a4f1c91ae3ca..0000000000000000000000000000000000000000
--- a/simd/jiss2int-64.asm
+++ /dev/null
@@ -1,848 +0,0 @@
-;
-; jiss2int-64.asm - accurate integer IDCT (64-bit SSE2)
-;
-; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
-; Copyright 2009 D. R. Commander
-;
-; Based on
-; x86 SIMD extension for IJG JPEG library
-; Copyright (C) 1999-2006, MIYASAKA Masaru.
-; For conditions of distribution and use, see copyright notice in jsimdext.inc
-;
-; This file should be assembled with NASM (Netwide Assembler),
-; can *not* be assembled with Microsoft's MASM or any compatible
-; assembler (including Borland's Turbo Assembler).
-; NASM is available from http://nasm.sourceforge.net/ or
-; http://sourceforge.net/project/showfiles.php?group_id=6208
-;
-; This file contains a slow-but-accurate integer implementation of the
-; inverse DCT (Discrete Cosine Transform). The following code is based
-; directly on the IJG's original jidctint.c; see the jidctint.c for
-; more details.
-;
-; [TAB8]
-
-%include "jsimdext.inc"
-%include "jdct.inc"
-
-; --------------------------------------------------------------------------
-
-%define CONST_BITS 13
-%define PASS1_BITS 2
-
-%define DESCALE_P1 (CONST_BITS-PASS1_BITS)
-%define DESCALE_P2 (CONST_BITS+PASS1_BITS+3)
-
-%if CONST_BITS == 13
-F_0_298 equ 2446 ; FIX(0.298631336)
-F_0_390 equ 3196 ; FIX(0.390180644)
-F_0_541 equ 4433 ; FIX(0.541196100)
-F_0_765 equ 6270 ; FIX(0.765366865)
-F_0_899 equ 7373 ; FIX(0.899976223)
-F_1_175 equ 9633 ; FIX(1.175875602)
-F_1_501 equ 12299 ; FIX(1.501321110)
-F_1_847 equ 15137 ; FIX(1.847759065)
-F_1_961 equ 16069 ; FIX(1.961570560)
-F_2_053 equ 16819 ; FIX(2.053119869)
-F_2_562 equ 20995 ; FIX(2.562915447)
-F_3_072 equ 25172 ; FIX(3.072711026)
-%else
-; NASM cannot do compile-time arithmetic on floating-point constants.
-%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
-F_0_298 equ DESCALE( 320652955,30-CONST_BITS) ; FIX(0.298631336)
-F_0_390 equ DESCALE( 418953276,30-CONST_BITS) ; FIX(0.390180644)
-F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100)
-F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865)
-F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223)
-F_1_175 equ DESCALE(1262586813,30-CONST_BITS) ; FIX(1.175875602)
-F_1_501 equ DESCALE(1612031267,30-CONST_BITS) ; FIX(1.501321110)
-F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065)
-F_1_961 equ DESCALE(2106220350,30-CONST_BITS) ; FIX(1.961570560)
-F_2_053 equ DESCALE(2204520673,30-CONST_BITS) ; FIX(2.053119869)
-F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447)
-F_3_072 equ DESCALE(3299298341,30-CONST_BITS) ; FIX(3.072711026)
-%endif
-
-; --------------------------------------------------------------------------
- SECTION SEG_CONST
-
- alignz 16
- global EXTN(jconst_idct_islow_sse2) PRIVATE
-
-EXTN(jconst_idct_islow_sse2):
-
-PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541
-PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847)
-PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175
-PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390)
-PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899
-PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899)
-PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562
-PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562)
-PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1)
-PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1)
-PB_CENTERJSAMP times 16 db CENTERJSAMPLE
-
- alignz 16
-
-; --------------------------------------------------------------------------
- SECTION SEG_TEXT
- BITS 64
-;
-; Perform dequantization and inverse DCT on one block of coefficients.
-;
-; GLOBAL(void)
-; jsimd_idct_islow_sse2 (void * dct_table, JCOEFPTR coef_block,
-; JSAMPARRAY output_buf, JDIMENSION output_col)
-;
-
-; r10 = jpeg_component_info * compptr
-; r11 = JCOEFPTR coef_block
-; r12 = JSAMPARRAY output_buf
-; r13 = JDIMENSION output_col
-
-%define original_rbp rbp+0
-%define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
-%define WK_NUM 12
-
- align 16
- global EXTN(jsimd_idct_islow_sse2) PRIVATE
-
-EXTN(jsimd_idct_islow_sse2):
- push rbp
- mov rax,rsp ; rax = original rbp
- sub rsp, byte 4
- and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
- mov [rsp],rax
- mov rbp,rsp ; rbp = aligned rbp
- lea rsp, [wk(0)]
- collect_args
-
- ; ---- Pass 1: process columns from input.
-
- mov rdx, r10 ; quantptr
- mov rsi, r11 ; inptr
-
-%ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2
- mov eax, DWORD [DWBLOCK(1,0,rsi,SIZEOF_JCOEF)]
- or eax, DWORD [DWBLOCK(2,0,rsi,SIZEOF_JCOEF)]
- jnz near .columnDCT
-
- movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)]
- movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)]
- por xmm0, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)]
- por xmm1, XMMWORD [XMMBLOCK(4,0,rsi,SIZEOF_JCOEF)]
- por xmm0, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)]
- por xmm1, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)]
- por xmm0, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)]
- por xmm1,xmm0
- packsswb xmm1,xmm1
- packsswb xmm1,xmm1
- movd eax,xmm1
- test rax,rax
- jnz short .columnDCT
-
- ; -- AC terms all zero
-
- movdqa xmm5, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)]
- pmullw xmm5, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
-
- psllw xmm5,PASS1_BITS
-
- movdqa xmm4,xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07)
- punpcklwd xmm5,xmm5 ; xmm5=(00 00 01 01 02 02 03 03)
- punpckhwd xmm4,xmm4 ; xmm4=(04 04 05 05 06 06 07 07)
-
- pshufd xmm7,xmm5,0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00)
- pshufd xmm6,xmm5,0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01)
- pshufd xmm1,xmm5,0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02)
- pshufd xmm5,xmm5,0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03)
- pshufd xmm0,xmm4,0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04)
- pshufd xmm3,xmm4,0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05)
- pshufd xmm2,xmm4,0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06)
- pshufd xmm4,xmm4,0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07)
-
- movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1
- movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3
- movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
- movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
- jmp near .column_end
-%endif
-.columnDCT:
-
- ; -- Even part
-
- movdqa xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)]
- movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)]
- pmullw xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- pmullw xmm1, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- movdqa xmm2, XMMWORD [XMMBLOCK(4,0,rsi,SIZEOF_JCOEF)]
- movdqa xmm3, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)]
- pmullw xmm2, XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- pmullw xmm3, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
-
- ; (Original)
- ; z1 = (z2 + z3) * 0.541196100;
- ; tmp2 = z1 + z3 * -1.847759065;
- ; tmp3 = z1 + z2 * 0.765366865;
- ;
- ; (This implementation)
- ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
- ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
-
- movdqa xmm4,xmm1 ; xmm1=in2=z2
- movdqa xmm5,xmm1
- punpcklwd xmm4,xmm3 ; xmm3=in6=z3
- punpckhwd xmm5,xmm3
- movdqa xmm1,xmm4
- movdqa xmm3,xmm5
- pmaddwd xmm4,[rel PW_F130_F054] ; xmm4=tmp3L
- pmaddwd xmm5,[rel PW_F130_F054] ; xmm5=tmp3H
- pmaddwd xmm1,[rel PW_F054_MF130] ; xmm1=tmp2L
- pmaddwd xmm3,[rel PW_F054_MF130] ; xmm3=tmp2H
-
- movdqa xmm6,xmm0
- paddw xmm0,xmm2 ; xmm0=in0+in4
- psubw xmm6,xmm2 ; xmm6=in0-in4
-
- pxor xmm7,xmm7
- pxor xmm2,xmm2
- punpcklwd xmm7,xmm0 ; xmm7=tmp0L
- punpckhwd xmm2,xmm0 ; xmm2=tmp0H
- psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
- psrad xmm2,(16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS
-
- movdqa xmm0,xmm7
- paddd xmm7,xmm4 ; xmm7=tmp10L
- psubd xmm0,xmm4 ; xmm0=tmp13L
- movdqa xmm4,xmm2
- paddd xmm2,xmm5 ; xmm2=tmp10H
- psubd xmm4,xmm5 ; xmm4=tmp13H
-
- movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L
- movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H
- movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L
- movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H
-
- pxor xmm5,xmm5
- pxor xmm7,xmm7
- punpcklwd xmm5,xmm6 ; xmm5=tmp1L
- punpckhwd xmm7,xmm6 ; xmm7=tmp1H
- psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
- psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
-
- movdqa xmm2,xmm5
- paddd xmm5,xmm1 ; xmm5=tmp11L
- psubd xmm2,xmm1 ; xmm2=tmp12L
- movdqa xmm0,xmm7
- paddd xmm7,xmm3 ; xmm7=tmp11H
- psubd xmm0,xmm3 ; xmm0=tmp12H
-
- movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
- movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H
- movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L
- movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H
-
- ; -- Odd part
-
- movdqa xmm4, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)]
- movdqa xmm6, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)]
- pmullw xmm4, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- pmullw xmm6, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- movdqa xmm1, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)]
- movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)]
- pmullw xmm1, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
- pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_ISLOW_MULT_TYPE)]
-
- movdqa xmm5,xmm6
- movdqa xmm7,xmm4
- paddw xmm5,xmm3 ; xmm5=z3
- paddw xmm7,xmm1 ; xmm7=z4
-
- ; (Original)
- ; z5 = (z3 + z4) * 1.175875602;
- ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
- ; z3 += z5; z4 += z5;
- ;
- ; (This implementation)
- ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
- ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
-
- movdqa xmm2,xmm5
- movdqa xmm0,xmm5
- punpcklwd xmm2,xmm7
- punpckhwd xmm0,xmm7
- movdqa xmm5,xmm2
- movdqa xmm7,xmm0
- pmaddwd xmm2,[rel PW_MF078_F117] ; xmm2=z3L
- pmaddwd xmm0,[rel PW_MF078_F117] ; xmm0=z3H
- pmaddwd xmm5,[rel PW_F117_F078] ; xmm5=z4L
- pmaddwd xmm7,[rel PW_F117_F078] ; xmm7=z4H
-
- movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L
- movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=z3H
-
- ; (Original)
- ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
- ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
- ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
- ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
- ; tmp0 += z1 + z3; tmp1 += z2 + z4;
- ; tmp2 += z2 + z3; tmp3 += z1 + z4;
- ;
- ; (This implementation)
- ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
- ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
- ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
- ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
- ; tmp0 += z3; tmp1 += z4;
- ; tmp2 += z3; tmp3 += z4;
-
- movdqa xmm2,xmm3
- movdqa xmm0,xmm3
- punpcklwd xmm2,xmm4
- punpckhwd xmm0,xmm4
- movdqa xmm3,xmm2
- movdqa xmm4,xmm0
- pmaddwd xmm2,[rel PW_MF060_MF089] ; xmm2=tmp0L
- pmaddwd xmm0,[rel PW_MF060_MF089] ; xmm0=tmp0H
- pmaddwd xmm3,[rel PW_MF089_F060] ; xmm3=tmp3L
- pmaddwd xmm4,[rel PW_MF089_F060] ; xmm4=tmp3H
-
- paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L
- paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H
- paddd xmm3,xmm5 ; xmm3=tmp3L
- paddd xmm4,xmm7 ; xmm4=tmp3H
-
- movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L
- movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H
-
- movdqa xmm2,xmm1
- movdqa xmm0,xmm1
- punpcklwd xmm2,xmm6
- punpckhwd xmm0,xmm6
- movdqa xmm1,xmm2
- movdqa xmm6,xmm0
- pmaddwd xmm2,[rel PW_MF050_MF256] ; xmm2=tmp1L
- pmaddwd xmm0,[rel PW_MF050_MF256] ; xmm0=tmp1H
- pmaddwd xmm1,[rel PW_MF256_F050] ; xmm1=tmp2L
- pmaddwd xmm6,[rel PW_MF256_F050] ; xmm6=tmp2H
-
- paddd xmm2,xmm5 ; xmm2=tmp1L
- paddd xmm0,xmm7 ; xmm0=tmp1H
- paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L
- paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
-
- movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L
- movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H
-
- ; -- Final output stage
-
- movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
- movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H
-
- movdqa xmm2,xmm5
- movdqa xmm0,xmm7
- paddd xmm5,xmm3 ; xmm5=data0L
- paddd xmm7,xmm4 ; xmm7=data0H
- psubd xmm2,xmm3 ; xmm2=data7L
- psubd xmm0,xmm4 ; xmm0=data7H
-
- movdqa xmm3,[rel PD_DESCALE_P1] ; xmm3=[rel PD_DESCALE_P1]
-
- paddd xmm5,xmm3
- paddd xmm7,xmm3
- psrad xmm5,DESCALE_P1
- psrad xmm7,DESCALE_P1
- paddd xmm2,xmm3
- paddd xmm0,xmm3
- psrad xmm2,DESCALE_P1
- psrad xmm0,DESCALE_P1
-
- packssdw xmm5,xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07)
- packssdw xmm2,xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77)
-
- movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L
- movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H
-
- movdqa xmm7,xmm4
- movdqa xmm0,xmm3
- paddd xmm4,xmm1 ; xmm4=data1L
- paddd xmm3,xmm6 ; xmm3=data1H
- psubd xmm7,xmm1 ; xmm7=data6L
- psubd xmm0,xmm6 ; xmm0=data6H
-
- movdqa xmm1,[rel PD_DESCALE_P1] ; xmm1=[rel PD_DESCALE_P1]
-
- paddd xmm4,xmm1
- paddd xmm3,xmm1
- psrad xmm4,DESCALE_P1
- psrad xmm3,DESCALE_P1
- paddd xmm7,xmm1
- paddd xmm0,xmm1
- psrad xmm7,DESCALE_P1
- psrad xmm0,DESCALE_P1
-
- packssdw xmm4,xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17)
- packssdw xmm7,xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67)
-
- movdqa xmm6,xmm5 ; transpose coefficients(phase 1)
- punpcklwd xmm5,xmm4 ; xmm5=(00 10 01 11 02 12 03 13)
- punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17)
- movdqa xmm1,xmm7 ; transpose coefficients(phase 1)
- punpcklwd xmm7,xmm2 ; xmm7=(60 70 61 71 62 72 63 73)
- punpckhwd xmm1,xmm2 ; xmm1=(64 74 65 75 66 76 67 77)
-
- movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L
- movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H
- movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L
- movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H
-
- movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13)
- movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17)
- movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73)
- movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77)
-
- movdqa xmm5,xmm3
- movdqa xmm6,xmm0
- paddd xmm3,xmm4 ; xmm3=data2L
- paddd xmm0,xmm2 ; xmm0=data2H
- psubd xmm5,xmm4 ; xmm5=data5L
- psubd xmm6,xmm2 ; xmm6=data5H
-
- movdqa xmm7,[rel PD_DESCALE_P1] ; xmm7=[rel PD_DESCALE_P1]
-
- paddd xmm3,xmm7
- paddd xmm0,xmm7
- psrad xmm3,DESCALE_P1
- psrad xmm0,DESCALE_P1
- paddd xmm5,xmm7
- paddd xmm6,xmm7
- psrad xmm5,DESCALE_P1
- psrad xmm6,DESCALE_P1
-
- packssdw xmm3,xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27)
- packssdw xmm5,xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57)
-
- movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L
- movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H
- movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L
- movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H
-
- movdqa xmm0,xmm1
- movdqa xmm6,xmm4
- paddd xmm1,xmm2 ; xmm1=data3L
- paddd xmm4,xmm7 ; xmm4=data3H
- psubd xmm0,xmm2 ; xmm0=data4L
- psubd xmm6,xmm7 ; xmm6=data4H
-
- movdqa xmm2,[rel PD_DESCALE_P1] ; xmm2=[rel PD_DESCALE_P1]
-
- paddd xmm1,xmm2
- paddd xmm4,xmm2
- psrad xmm1,DESCALE_P1
- psrad xmm4,DESCALE_P1
- paddd xmm0,xmm2
- paddd xmm6,xmm2
- psrad xmm0,DESCALE_P1
- psrad xmm6,DESCALE_P1
-
- packssdw xmm1,xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37)
- packssdw xmm0,xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47)
-
- movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13)
- movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17)
-
- movdqa xmm4,xmm3 ; transpose coefficients(phase 1)
- punpcklwd xmm3,xmm1 ; xmm3=(20 30 21 31 22 32 23 33)
- punpckhwd xmm4,xmm1 ; xmm4=(24 34 25 35 26 36 27 37)
- movdqa xmm6,xmm0 ; transpose coefficients(phase 1)
- punpcklwd xmm0,xmm5 ; xmm0=(40 50 41 51 42 52 43 53)
- punpckhwd xmm6,xmm5 ; xmm6=(44 54 45 55 46 56 47 57)
-
- movdqa xmm1,xmm7 ; transpose coefficients(phase 2)
- punpckldq xmm7,xmm3 ; xmm7=(00 10 20 30 01 11 21 31)
- punpckhdq xmm1,xmm3 ; xmm1=(02 12 22 32 03 13 23 33)
- movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
- punpckldq xmm2,xmm4 ; xmm2=(04 14 24 34 05 15 25 35)
- punpckhdq xmm5,xmm4 ; xmm5=(06 16 26 36 07 17 27 37)
-
- movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73)
- movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77)
-
- movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35)
- movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37)
-
- movdqa xmm2,xmm0 ; transpose coefficients(phase 2)
- punpckldq xmm0,xmm3 ; xmm0=(40 50 60 70 41 51 61 71)
- punpckhdq xmm2,xmm3 ; xmm2=(42 52 62 72 43 53 63 73)
- movdqa xmm5,xmm6 ; transpose coefficients(phase 2)
- punpckldq xmm6,xmm4 ; xmm6=(44 54 64 74 45 55 65 75)
- punpckhdq xmm5,xmm4 ; xmm5=(46 56 66 76 47 57 67 77)
-
- movdqa xmm3,xmm7 ; transpose coefficients(phase 3)
- punpcklqdq xmm7,xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70)
- punpckhqdq xmm3,xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71)
- movdqa xmm4,xmm1 ; transpose coefficients(phase 3)
- punpcklqdq xmm1,xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72)
- punpckhqdq xmm4,xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73)
-
- movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35)
- movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37)
-
- movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1
- movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3
-
- movdqa xmm3,xmm0 ; transpose coefficients(phase 3)
- punpcklqdq xmm0,xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74)
- punpckhqdq xmm3,xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75)
- movdqa xmm4,xmm2 ; transpose coefficients(phase 3)
- punpcklqdq xmm2,xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76)
- punpckhqdq xmm4,xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77)
-
- movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
- movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
-.column_end:
-
- ; -- Prefetch the next coefficient block
-
- prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
- prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
- prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
- prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
-
- ; ---- Pass 2: process rows from work array, store into output array.
-
- mov rax, [original_rbp]
- mov rdi, r12 ; (JSAMPROW *)
- mov eax, r13d
-
- ; -- Even part
-
- ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6
-
- ; (Original)
- ; z1 = (z2 + z3) * 0.541196100;
- ; tmp2 = z1 + z3 * -1.847759065;
- ; tmp3 = z1 + z2 * 0.765366865;
- ;
- ; (This implementation)
- ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
- ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
-
- movdqa xmm6,xmm1 ; xmm1=in2=z2
- movdqa xmm5,xmm1
- punpcklwd xmm6,xmm2 ; xmm2=in6=z3
- punpckhwd xmm5,xmm2
- movdqa xmm1,xmm6
- movdqa xmm2,xmm5
- pmaddwd xmm6,[rel PW_F130_F054] ; xmm6=tmp3L
- pmaddwd xmm5,[rel PW_F130_F054] ; xmm5=tmp3H
- pmaddwd xmm1,[rel PW_F054_MF130] ; xmm1=tmp2L
- pmaddwd xmm2,[rel PW_F054_MF130] ; xmm2=tmp2H
-
- movdqa xmm3,xmm7
- paddw xmm7,xmm0 ; xmm7=in0+in4
- psubw xmm3,xmm0 ; xmm3=in0-in4
-
- pxor xmm4,xmm4
- pxor xmm0,xmm0
- punpcklwd xmm4,xmm7 ; xmm4=tmp0L
- punpckhwd xmm0,xmm7 ; xmm0=tmp0H
- psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
- psrad xmm0,(16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS
-
- movdqa xmm7,xmm4
- paddd xmm4,xmm6 ; xmm4=tmp10L
- psubd xmm7,xmm6 ; xmm7=tmp13L
- movdqa xmm6,xmm0
- paddd xmm0,xmm5 ; xmm0=tmp10H
- psubd xmm6,xmm5 ; xmm6=tmp13H
-
- movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L
- movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H
- movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L
- movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H
-
- pxor xmm5,xmm5
- pxor xmm4,xmm4
- punpcklwd xmm5,xmm3 ; xmm5=tmp1L
- punpckhwd xmm4,xmm3 ; xmm4=tmp1H
- psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
- psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
-
- movdqa xmm0,xmm5
- paddd xmm5,xmm1 ; xmm5=tmp11L
- psubd xmm0,xmm1 ; xmm0=tmp12L
- movdqa xmm7,xmm4
- paddd xmm4,xmm2 ; xmm4=tmp11H
- psubd xmm7,xmm2 ; xmm7=tmp12H
-
- movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
- movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H
- movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L
- movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H
-
- ; -- Odd part
-
- movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3
- movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1
- movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7
- movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5
-
- movdqa xmm5,xmm6
- movdqa xmm4,xmm3
- paddw xmm5,xmm1 ; xmm5=z3
- paddw xmm4,xmm2 ; xmm4=z4
-
- ; (Original)
- ; z5 = (z3 + z4) * 1.175875602;
- ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
- ; z3 += z5; z4 += z5;
- ;
- ; (This implementation)
- ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
- ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
-
- movdqa xmm0,xmm5
- movdqa xmm7,xmm5
- punpcklwd xmm0,xmm4
- punpckhwd xmm7,xmm4
- movdqa xmm5,xmm0
- movdqa xmm4,xmm7
- pmaddwd xmm0,[rel PW_MF078_F117] ; xmm0=z3L
- pmaddwd xmm7,[rel PW_MF078_F117] ; xmm7=z3H
- pmaddwd xmm5,[rel PW_F117_F078] ; xmm5=z4L
- pmaddwd xmm4,[rel PW_F117_F078] ; xmm4=z4H
-
- movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L
- movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=z3H
-
- ; (Original)
- ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
- ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
- ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
- ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
- ; tmp0 += z1 + z3; tmp1 += z2 + z4;
- ; tmp2 += z2 + z3; tmp3 += z1 + z4;
- ;
- ; (This implementation)
- ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
- ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
- ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
- ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
- ; tmp0 += z3; tmp1 += z4;
- ; tmp2 += z3; tmp3 += z4;
-
- movdqa xmm0,xmm1
- movdqa xmm7,xmm1
- punpcklwd xmm0,xmm3
- punpckhwd xmm7,xmm3
- movdqa xmm1,xmm0
- movdqa xmm3,xmm7
- pmaddwd xmm0,[rel PW_MF060_MF089] ; xmm0=tmp0L
- pmaddwd xmm7,[rel PW_MF060_MF089] ; xmm7=tmp0H
- pmaddwd xmm1,[rel PW_MF089_F060] ; xmm1=tmp3L
- pmaddwd xmm3,[rel PW_MF089_F060] ; xmm3=tmp3H
-
- paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L
- paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H
- paddd xmm1,xmm5 ; xmm1=tmp3L
- paddd xmm3,xmm4 ; xmm3=tmp3H
-
- movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L
- movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H
-
- movdqa xmm0,xmm2
- movdqa xmm7,xmm2
- punpcklwd xmm0,xmm6
- punpckhwd xmm7,xmm6
- movdqa xmm2,xmm0
- movdqa xmm6,xmm7
- pmaddwd xmm0,[rel PW_MF050_MF256] ; xmm0=tmp1L
- pmaddwd xmm7,[rel PW_MF050_MF256] ; xmm7=tmp1H
- pmaddwd xmm2,[rel PW_MF256_F050] ; xmm2=tmp2L
- pmaddwd xmm6,[rel PW_MF256_F050] ; xmm6=tmp2H
-
- paddd xmm0,xmm5 ; xmm0=tmp1L
- paddd xmm7,xmm4 ; xmm7=tmp1H
- paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L
- paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
-
- movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L
- movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H
-
- ; -- Final output stage
-
- movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
- movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H
-
- movdqa xmm0,xmm5
- movdqa xmm7,xmm4
- paddd xmm5,xmm1 ; xmm5=data0L
- paddd xmm4,xmm3 ; xmm4=data0H
- psubd xmm0,xmm1 ; xmm0=data7L
- psubd xmm7,xmm3 ; xmm7=data7H
-
- movdqa xmm1,[rel PD_DESCALE_P2] ; xmm1=[rel PD_DESCALE_P2]
-
- paddd xmm5,xmm1
- paddd xmm4,xmm1
- psrad xmm5,DESCALE_P2
- psrad xmm4,DESCALE_P2
- paddd xmm0,xmm1
- paddd xmm7,xmm1
- psrad xmm0,DESCALE_P2
- psrad xmm7,DESCALE_P2
-
- packssdw xmm5,xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70)
- packssdw xmm0,xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77)
-
- movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L
- movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H
-
- movdqa xmm4,xmm3
- movdqa xmm7,xmm1
- paddd xmm3,xmm2 ; xmm3=data1L
- paddd xmm1,xmm6 ; xmm1=data1H
- psubd xmm4,xmm2 ; xmm4=data6L
- psubd xmm7,xmm6 ; xmm7=data6H
-
- movdqa xmm2,[rel PD_DESCALE_P2] ; xmm2=[rel PD_DESCALE_P2]
-
- paddd xmm3,xmm2
- paddd xmm1,xmm2
- psrad xmm3,DESCALE_P2
- psrad xmm1,DESCALE_P2
- paddd xmm4,xmm2
- paddd xmm7,xmm2
- psrad xmm4,DESCALE_P2
- psrad xmm7,DESCALE_P2
-
- packssdw xmm3,xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71)
- packssdw xmm4,xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76)
-
- packsswb xmm5,xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
- packsswb xmm3,xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
-
- movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L
- movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H
- movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L
- movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H
-
- movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
- movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
-
- movdqa xmm4,xmm6
- movdqa xmm0,xmm2
- paddd xmm6,xmm1 ; xmm6=data2L
- paddd xmm2,xmm7 ; xmm2=data2H
- psubd xmm4,xmm1 ; xmm4=data5L
- psubd xmm0,xmm7 ; xmm0=data5H
-
- movdqa xmm5,[rel PD_DESCALE_P2] ; xmm5=[rel PD_DESCALE_P2]
-
- paddd xmm6,xmm5
- paddd xmm2,xmm5
- psrad xmm6,DESCALE_P2
- psrad xmm2,DESCALE_P2
- paddd xmm4,xmm5
- paddd xmm0,xmm5
- psrad xmm4,DESCALE_P2
- psrad xmm0,DESCALE_P2
-
- packssdw xmm6,xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72)
- packssdw xmm4,xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75)
-
- movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L
- movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H
- movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L
- movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H
-
- movdqa xmm2,xmm3
- movdqa xmm0,xmm1
- paddd xmm3,xmm7 ; xmm3=data3L
- paddd xmm1,xmm5 ; xmm1=data3H
- psubd xmm2,xmm7 ; xmm2=data4L
- psubd xmm0,xmm5 ; xmm0=data4H
-
- movdqa xmm7,[rel PD_DESCALE_P2] ; xmm7=[rel PD_DESCALE_P2]
-
- paddd xmm3,xmm7
- paddd xmm1,xmm7
- psrad xmm3,DESCALE_P2
- psrad xmm1,DESCALE_P2
- paddd xmm2,xmm7
- paddd xmm0,xmm7
- psrad xmm2,DESCALE_P2
- psrad xmm0,DESCALE_P2
-
- movdqa xmm5,[rel PB_CENTERJSAMP] ; xmm5=[rel PB_CENTERJSAMP]
-
- packssdw xmm3,xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73)
- packssdw xmm2,xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74)
-
- movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
- movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
-
- packsswb xmm6,xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
- packsswb xmm3,xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
-
- paddb xmm7,xmm5
- paddb xmm1,xmm5
- paddb xmm6,xmm5
- paddb xmm3,xmm5
-
- movdqa xmm0,xmm7 ; transpose coefficients(phase 1)
- punpcklbw xmm7,xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
- punpckhbw xmm0,xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
- movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
- punpcklbw xmm6,xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
- punpckhbw xmm2,xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
-
- movdqa xmm4,xmm7 ; transpose coefficients(phase 2)
- punpcklwd xmm7,xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
- punpckhwd xmm4,xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
- movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
- punpcklwd xmm2,xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
- punpckhwd xmm5,xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
-
- movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
- punpckldq xmm7,xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
- punpckhdq xmm1,xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
- movdqa xmm3,xmm4 ; transpose coefficients(phase 3)
- punpckldq xmm4,xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
- punpckhdq xmm3,xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
-
- pshufd xmm6,xmm7,0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
- pshufd xmm0,xmm1,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
- pshufd xmm2,xmm4,0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
- pshufd xmm5,xmm3,0x4E ; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
-
- mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW]
- mov rsi, JSAMPROW [rdi+2*SIZEOF_JSAMPROW]
- movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm7
- movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm1
- mov rdx, JSAMPROW [rdi+4*SIZEOF_JSAMPROW]
- mov rsi, JSAMPROW [rdi+6*SIZEOF_JSAMPROW]
- movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm4
- movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm3
-
- mov rdx, JSAMPROW [rdi+1*SIZEOF_JSAMPROW]
- mov rsi, JSAMPROW [rdi+3*SIZEOF_JSAMPROW]
- movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm6
- movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm0
- mov rdx, JSAMPROW [rdi+5*SIZEOF_JSAMPROW]
- mov rsi, JSAMPROW [rdi+7*SIZEOF_JSAMPROW]
- movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm2
- movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm5
-
- uncollect_args
- mov rsp,rbp ; rsp <- aligned rbp
- pop rsp ; rsp <- original rbp
- pop rbp
- ret
-
-; For some reason, the OS X linker does not honor the request to align the
-; segment unless we do this.
- align 16
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