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diff --git a/media/libjpeg/simd/i386/jquanti-avx2.asm b/media/libjpeg/simd/i386/jquanti-avx2.asm
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+;
+; jquanti.asm - sample data conversion and quantization (AVX2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2016, 2018, D. R. Commander.
+; Copyright (C) 2016, Matthieu Darbois.
+;
+; Based on the 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
+
+%include "jsimdext.inc"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Load data into workspace, applying unsigned->signed conversion
+;
+; GLOBAL(void)
+; jsimd_convsamp_avx2(JSAMPARRAY sample_data, JDIMENSION start_col,
+; DCTELEM *workspace);
+;
+
+%define sample_data ebp + 8 ; JSAMPARRAY sample_data
+%define start_col ebp + 12 ; JDIMENSION start_col
+%define workspace ebp + 16 ; DCTELEM *workspace
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_convsamp_avx2)
+
+EXTN(jsimd_convsamp_avx2):
+ push ebp
+ mov ebp, esp
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov esi, JSAMPARRAY [sample_data] ; (JSAMPROW *)
+ mov eax, JDIMENSION [start_col]
+ mov edi, POINTER [workspace] ; (DCTELEM *)
+
+ mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ movq xmm0, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+ movq xmm1, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+ mov ebx, JSAMPROW [esi+2*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+3*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ movq xmm2, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+ movq xmm3, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+ mov ebx, JSAMPROW [esi+4*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+5*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ movq xmm4, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+ movq xmm5, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+ mov ebx, JSAMPROW [esi+6*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+7*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ movq xmm6, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+ movq xmm7, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+ vinserti128 ymm0, ymm0, xmm1, 1
+ vinserti128 ymm2, ymm2, xmm3, 1
+ vinserti128 ymm4, ymm4, xmm5, 1
+ vinserti128 ymm6, ymm6, xmm7, 1
+
+ vpxor ymm1, ymm1, ymm1 ; ymm1=(all 0's)
+ vpunpcklbw ymm0, ymm0, ymm1
+ vpunpcklbw ymm2, ymm2, ymm1
+ vpunpcklbw ymm4, ymm4, ymm1
+ vpunpcklbw ymm6, ymm6, ymm1
+
+ vpcmpeqw ymm7, ymm7, ymm7
+ vpsllw ymm7, ymm7, 7 ; ymm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
+
+ vpaddw ymm0, ymm0, ymm7
+ vpaddw ymm2, ymm2, ymm7
+ vpaddw ymm4, ymm4, ymm7
+ vpaddw ymm6, ymm6, ymm7
+
+ vmovdqu YMMWORD [YMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], ymm0
+ vmovdqu YMMWORD [YMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], ymm2
+ vmovdqu YMMWORD [YMMBLOCK(4,0,edi,SIZEOF_DCTELEM)], ymm4
+ vmovdqu YMMWORD [YMMBLOCK(6,0,edi,SIZEOF_DCTELEM)], ymm6
+
+ vzeroupper
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ pop ebx
+ pop ebp
+ ret
+
+; --------------------------------------------------------------------------
+;
+; Quantize/descale the coefficients, and store into coef_block
+;
+; This implementation is based on an algorithm described in
+; "How to optimize for the Pentium family of microprocessors"
+; (http://www.agner.org/assem/).
+;
+; GLOBAL(void)
+; jsimd_quantize_avx2(JCOEFPTR coef_block, DCTELEM *divisors,
+; DCTELEM *workspace);
+;
+
+%define RECIPROCAL(m, n, b) \
+ YMMBLOCK(DCTSIZE * 0 + (m), (n), (b), SIZEOF_DCTELEM)
+%define CORRECTION(m, n, b) \
+ YMMBLOCK(DCTSIZE * 1 + (m), (n), (b), SIZEOF_DCTELEM)
+%define SCALE(m, n, b) \
+ YMMBLOCK(DCTSIZE * 2 + (m), (n), (b), SIZEOF_DCTELEM)
+
+%define coef_block ebp + 8 ; JCOEFPTR coef_block
+%define divisors ebp + 12 ; DCTELEM *divisors
+%define workspace ebp + 16 ; DCTELEM *workspace
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_quantize_avx2)
+
+EXTN(jsimd_quantize_avx2):
+ push ebp
+ mov ebp, esp
+; push ebx ; unused
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov esi, POINTER [workspace]
+ mov edx, POINTER [divisors]
+ mov edi, JCOEFPTR [coef_block]
+
+ vmovdqu ymm4, [YMMBLOCK(0,0,esi,SIZEOF_DCTELEM)]
+ vmovdqu ymm5, [YMMBLOCK(2,0,esi,SIZEOF_DCTELEM)]
+ vmovdqu ymm6, [YMMBLOCK(4,0,esi,SIZEOF_DCTELEM)]
+ vmovdqu ymm7, [YMMBLOCK(6,0,esi,SIZEOF_DCTELEM)]
+ vpabsw ymm0, ymm4
+ vpabsw ymm1, ymm5
+ vpabsw ymm2, ymm6
+ vpabsw ymm3, ymm7
+
+ vpaddw ymm0, YMMWORD [CORRECTION(0,0,edx)] ; correction + roundfactor
+ vpaddw ymm1, YMMWORD [CORRECTION(2,0,edx)]
+ vpaddw ymm2, YMMWORD [CORRECTION(4,0,edx)]
+ vpaddw ymm3, YMMWORD [CORRECTION(6,0,edx)]
+ vpmulhuw ymm0, YMMWORD [RECIPROCAL(0,0,edx)] ; reciprocal
+ vpmulhuw ymm1, YMMWORD [RECIPROCAL(2,0,edx)]
+ vpmulhuw ymm2, YMMWORD [RECIPROCAL(4,0,edx)]
+ vpmulhuw ymm3, YMMWORD [RECIPROCAL(6,0,edx)]
+ vpmulhuw ymm0, YMMWORD [SCALE(0,0,edx)] ; scale
+ vpmulhuw ymm1, YMMWORD [SCALE(2,0,edx)]
+ vpmulhuw ymm2, YMMWORD [SCALE(4,0,edx)]
+ vpmulhuw ymm3, YMMWORD [SCALE(6,0,edx)]
+
+ vpsignw ymm0, ymm0, ymm4
+ vpsignw ymm1, ymm1, ymm5
+ vpsignw ymm2, ymm2, ymm6
+ vpsignw ymm3, ymm3, ymm7
+
+ vmovdqu [YMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], ymm0
+ vmovdqu [YMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], ymm1
+ vmovdqu [YMMBLOCK(4,0,edi,SIZEOF_DCTELEM)], ymm2
+ vmovdqu [YMMBLOCK(6,0,edi,SIZEOF_DCTELEM)], ymm3
+
+ vzeroupper
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+; pop ebx ; unused
+ pop ebp
+ ret
+
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+ align 32
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