Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpn/x86/darwin.m4

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+divert(-1)
+dnl  Copyright 2007, 2011, 2012, 2014 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/.
+
+define(`DARWIN')
+
+
+dnl  Usage LEA(symbol,reg)
+dnl  Usage LEAL(symbol_local_to_file,reg)
+dnl
+dnl  We maintain lists of stuff to append in load_eip and darwin_bd.  The
+dnl  `index' stuff is needed to suppress repeated definitions.  To avoid
+dnl  getting fooled by "var" and "var1", we add 'bol ' (the end of
+dnl  'indirect_symbol') at the beginning and and a newline at the end.  This
+dnl  might be a bit fragile.
+
+define(`LEA',
+m4_assert_numargs(2)
+`ifdef(`PIC',`
+ifelse(index(defn(`load_eip'), `$2'),-1,
+`m4append(`load_eip',
+`	TEXT
+	ALIGN(16)
+L(movl_eip_`'substr($2,1)):
+	movl	(%esp), $2
+	ret_internal
+')')
+ifelse(index(defn(`darwin_bd'), `bol $1
+'),-1,
+`m4append(`darwin_bd',
+`	.section __IMPORT,__pointers,non_lazy_symbol_pointers
+L($1`'$non_lazy_ptr):
+	.indirect_symbol $1
+	.long	 0
+')')
+	call	L(movl_eip_`'substr($2,1))
+	movl	L($1`'$non_lazy_ptr)-.($2), $2
+',`
+	movl	`$'$1, $2
+')')
+
+define(`LEAL',
+m4_assert_numargs(2)
+`ifdef(`PIC',`
+ifelse(index(defn(`load_eip'), `$2'),-1,
+`m4append(`load_eip',
+`	TEXT
+	ALIGN(16)
+L(movl_eip_`'substr($2,1)):
+	movl	(%esp), $2
+	ret_internal
+')')
+	call	L(movl_eip_`'substr($2,1))
+	leal	$1-.($2), $2
+',`
+	movl	`$'$1, $2
+')')
+
+
+dnl ASM_END
+
+define(`ASM_END',`load_eip`'darwin_bd')
+
+define(`load_eip', `')		dnl updated in LEA
+define(`darwin_bd', `')		dnl updated in LEA
+
+
+dnl  Usage: CALL(funcname)
+dnl
+
+define(`CALL',
+m4_assert_numargs(1)
+`call	GSYM_PREFIX`'$1')
+
+undefine(`PIC_WITH_EBX')
+
+divert`'dnl