Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpn/x86/mmx/sec_tabselect.asm

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+dnl  X86 MMX mpn_sec_tabselect.
+
+dnl  Contributed to the GNU project by Torbjörn Granlund.
+
+dnl  Copyright 2011-2013 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+dnl
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of either:
+dnl
+dnl    * the GNU Lesser General Public License as published by the Free
+dnl      Software Foundation; either version 3 of the License, or (at your
+dnl      option) any later version.
+dnl
+dnl  or
+dnl
+dnl    * the GNU General Public License as published by the Free Software
+dnl      Foundation; either version 2 of the License, or (at your option) any
+dnl      later version.
+dnl
+dnl  or both in parallel, as here.
+dnl
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+dnl  for more details.
+dnl
+dnl  You should have received copies of the GNU General Public License and the
+dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
+dnl  see https://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+C			     cycles/limb     cycles/limb
+C			      ali,evn n	     unal,evn n
+C P5
+C P6 model 0-8,10-12
+C P6 model 9  (Banias)
+C P6 model 13 (Dothan)		 1.33		 1.87
+C P4 model 0  (Willamette)
+C P4 model 1  (?)
+C P4 model 2  (Northwood)	 2.1		 2.63
+C P4 model 3  (Prescott)
+C P4 model 4  (Nocona)		 1.7		 2.57
+C Intel Atom			 1.85		 2.7
+C AMD K6
+C AMD K7			 1.33		 1.33
+C AMD K8
+C AMD K10
+
+define(`rp',     `%edi')
+define(`tp',     `%esi')
+define(`n',      `%edx')
+define(`nents',  `%ecx')
+define(`which',  `')
+
+define(`i',      `%ebp')
+define(`j',      `%ebx')
+
+ASM_START()
+	TEXT
+	ALIGN(16)
+PROLOGUE(mpn_sec_tabselect)
+	push	%ebx
+	push	%esi
+	push	%edi
+	push	%ebp
+
+	mov	20(%esp), rp
+	mov	24(%esp), tp
+	mov	28(%esp), n
+	mov	32(%esp), nents
+
+	movd	36(%esp), %mm6
+	punpckldq %mm6, %mm6		C 2 copies of `which'
+
+	mov	$1, %ebx
+	movd	%ebx, %mm7
+	punpckldq %mm7, %mm7		C 2 copies of 1
+
+	mov	n, j
+	add	$-4, j
+	js	L(outer_end)
+
+L(outer_top):
+	mov	nents, i
+	mov	tp, %eax
+	pxor	%mm1, %mm1
+	pxor	%mm4, %mm4
+	pxor	%mm5, %mm5
+	ALIGN(16)
+L(top):	movq	%mm6, %mm0
+	pcmpeqd	%mm1, %mm0
+	paddd	%mm7, %mm1
+	movq	(tp), %mm2
+	movq	8(tp), %mm3
+	pand	%mm0, %mm2
+	pand	%mm0, %mm3
+	por	%mm2, %mm4
+	por	%mm3, %mm5
+	lea	(tp,n,4), tp
+	add	$-1, i
+	jne	L(top)
+
+	movq	%mm4, (rp)
+	movq	%mm5, 8(rp)
+
+	lea	16(%eax), tp
+	lea	16(rp), rp
+	add	$-4, j
+	jns	L(outer_top)
+L(outer_end):
+
+	test	$2, %dl
+	jz	L(b0x)
+
+L(b1x):	mov	nents, i
+	mov	tp, %eax
+	pxor	%mm1, %mm1
+	pxor	%mm4, %mm4
+	ALIGN(16)
+L(tp2):	movq	%mm6, %mm0
+	pcmpeqd	%mm1, %mm0
+	paddd	%mm7, %mm1
+	movq	(tp), %mm2
+	pand	%mm0, %mm2
+	por	%mm2, %mm4
+	lea	(tp,n,4), tp
+	add	$-1, i
+	jne	L(tp2)
+
+	movq	%mm4, (rp)
+
+	lea	8(%eax), tp
+	lea	8(rp), rp
+
+L(b0x):	test	$1, %dl
+	jz	L(b00)
+
+L(b01):	mov	nents, i
+	pxor	%mm1, %mm1
+	pxor	%mm4, %mm4
+	ALIGN(16)
+L(tp1):	movq	%mm6, %mm0
+	pcmpeqd	%mm1, %mm0
+	paddd	%mm7, %mm1
+	movd	(tp), %mm2
+	pand	%mm0, %mm2
+	por	%mm2, %mm4
+	lea	(tp,n,4), tp
+	add	$-1, i
+	jne	L(tp1)
+
+	movd	%mm4, (rp)
+
+L(b00):	pop	%ebp
+	pop	%edi
+	pop	%esi
+	pop	%ebx
+	emms
+	ret
+EPILOGUE()