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diff --git a/REORG.TODO/sysdeps/i386/strcspn.S b/REORG.TODO/sysdeps/i386/strcspn.S
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+/* strcspn (str, ss) -- Return the length of the initial segment of STR
+			which contains no characters from SS.
+   For Intel 80x86, x>=3.
+   Copyright (C) 1994-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
+   Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include "asm-syntax.h"
+
+#define PARMS	4		/* no space for saved regs */
+#define STR	PARMS
+#define STOP	STR+4
+
+	.text
+ENTRY (strcspn)
+
+	movl STR(%esp), %edx
+	movl STOP(%esp), %eax
+
+	/* First we create a table with flags for all possible characters.
+	   For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
+	   supported by the C string functions we have 256 characters.
+	   Before inserting marks for the stop characters we clear the whole
+	   table.  The unrolled form is much faster than a loop.  */
+	xorl %ecx, %ecx		/* %ecx = 0 !!! */
+
+	pushl %ecx		/* make a 256 bytes long block filled with 0 */
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl %ecx
+	cfi_adjust_cfa_offset (4)
+	pushl $0		/* These immediate values make the label 2 */
+	cfi_adjust_cfa_offset (4)
+	pushl $0		/* to be aligned on a 16 byte boundary to */
+	cfi_adjust_cfa_offset (4)
+	pushl $0		/* get a better performance of the loop.  */
+	cfi_adjust_cfa_offset (4)
+	pushl $0
+	cfi_adjust_cfa_offset (4)
+	pushl $0
+	cfi_adjust_cfa_offset (4)
+	pushl $0
+	cfi_adjust_cfa_offset (4)
+
+/* For understanding the following code remember that %ecx == 0 now.
+   Although all the following instruction only modify %cl we always
+   have a correct zero-extended 32-bit value in %ecx.  */
+
+/* Don't change the "testb $0xff,%%cl" to "testb %%cl,%%cl".  We want
+   longer instructions so that the next loop aligns without adding nops.  */
+
+L(2):	movb (%eax), %cl	/* get byte from stopset */
+	testb %cl, %cl		/* is NUL char? */
+	jz L(1)			/* yes => start compare loop */
+	movb %cl, (%esp,%ecx)	/* set corresponding byte in stopset table */
+
+	movb 1(%eax), %cl	/* get byte from stopset */
+	testb $0xff, %cl	/* is NUL char? */
+	jz L(1)			/* yes => start compare loop */
+	movb %cl, (%esp,%ecx)	/* set corresponding byte in stopset table */
+
+	movb 2(%eax), %cl	/* get byte from stopset */
+	testb $0xff, %cl	/* is NUL char? */
+	jz L(1)			/* yes => start compare loop */
+	movb %cl, (%esp,%ecx)	/* set corresponding byte in stopset table */
+
+	movb 3(%eax), %cl	/* get byte from stopset */
+	addl $4, %eax		/* increment stopset pointer */
+	movb %cl, (%esp,%ecx)	/* set corresponding byte in stopset table */
+	testb $0xff, %cl	/* is NUL char? */
+	jnz L(2)		/* no => process next dword from stopset */
+
+L(1):	leal -4(%edx), %eax	/* prepare loop */
+
+	/* We use a neat trick for the following loop.  Normally we would
+	   have to test for two termination conditions
+	   1. a character in the stopset was found
+	   and
+	   2. the end of the string was found
+	   But as a sign that the character is in the stopset we store its
+	   value in the table.  But the value of NUL is NUL so the loop
+	   terminates for NUL in every case.  */
+
+L(3):	addl $4, %eax		/* adjust pointer for full loop round */
+
+	movb (%eax), %cl	/* get byte from string */
+	cmpb %cl, (%esp,%ecx)	/* is it contained in stopset? */
+	je L(4)			/* yes => return */
+
+	movb 1(%eax), %cl	/* get byte from string */
+	cmpb %cl, (%esp,%ecx)	/* is it contained in stopset? */
+	je L(5)			/* yes => return */
+
+	movb 2(%eax), %cl	/* get byte from string */
+	cmpb %cl, (%esp,%ecx)	/* is it contained in stopset? */
+	je L(6)			/* yes => return */
+
+	movb 3(%eax), %cl	/* get byte from string */
+	cmpb %cl, (%esp,%ecx)	/* is it contained in stopset? */
+	jne L(3)		/* yes => return */
+
+	incl %eax		/* adjust pointer */
+L(6):	incl %eax
+L(5):	incl %eax
+
+L(4):	addl $256, %esp		/* remove stopset */
+	cfi_adjust_cfa_offset (-256)
+	subl %edx, %eax		/* we have to return the number of valid
+				   characters, so compute distance to first
+				   non-valid character */
+	ret
+END (strcspn)
+libc_hidden_builtin_def (strcspn)