[thirdparty/glibc.git] / sysdeps / sparc / sparc64 / strcmp.S

/* Compare two strings for differences.
   For SPARC v9.
   Copyright (C) 1997, 1999, 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jan Vondrak <jvon4518@ss1000.ms.mff.cuni.cz> and
                  Jakub Jelinek <jj@ultra.linux.cz>.

   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <sysdep.h>
#include <asm/asi.h>
#ifndef XCC
	.register	%g2, #scratch
	.register	%g3, #scratch
	.register	%g6, #scratch
#endif

	/* Normally, this uses
	   ((xword - 0x0101010101010101) & 0x8080808080808080) test
	   to find out if any byte in xword could be zero. This is fast, but
	   also gives false alarm for any byte in range 0x81-0xff. It does
	   not matter for correctness, as if this test tells us there could
	   be some zero byte, we check it byte by byte, but if bytes with
	   high bits set are common in the strings, then this will give poor
	   performance. You can #define EIGHTBIT_NOT_RARE and the algorithm
	   will use one tick slower, but more precise test
	   ((xword - 0x0101010101010101) & (~xword) & 0x8080808080808080),
	   which does not give any false alarms (but if some bits are set,
	   one cannot assume from it which bytes are zero and which are not).
	   It is yet to be measured, what is the correct default for glibc
	   in these days for an average user.
	 */

	.text
	.align		32
ENTRY(strcmp)
	sethi		%hi(0x01010101), %g1			/* IEU0		Group		*/
	andcc		%o0, 7, %g0				/* IEU1				*/
	bne,pn		%icc, 7f				/* CTI				*/
	 or		%g1, %lo(0x01010101), %g1		/* IEU0		Group		*/

	andcc		%o1, 7, %g3				/* IEU1				*/
	bne,pn		%icc, 9f				/* CTI				*/
	 sllx		%g1, 32, %g2				/* IEU0		Group		*/
	ldx		[%o0], %o2				/* Load				*/

	or		%g1, %g2, %g1				/* IEU0		Group		*/
1:	ldx		[%o1], %o3				/* Load				*/
	sub		%o1, %o0, %o1				/* IEU1				*/
	sllx		%g1, 7, %g2				/* IEU0		Group		*/

2:	add		%o0, 8, %o0				/* IEU1				*/
	sub		%o2, %g1, %g3				/* IEU0		Group		*/
	subcc		%o2, %o3, %g0				/* IEU1				*/
	bne,pn		%xcc, 13f				/* CTI				*/

#ifdef EIGHTBIT_NOT_RARE
	 andn		%g3, %o2, %g4				/* IEU0		Group		*/
	ldxa		[%o0] ASI_PNF, %o2			/* Load				*/
	andcc		%g4, %g2, %g0				/* IEU1		Group		*/
#else
	 ldxa		[%o0] ASI_PNF, %o2			/* Load		Group		*/
	andcc		%g3, %g2, %g0				/* IEU1				*/
#endif
	be,a,pt		%xcc, 2b				/* CTI				*/
	 ldxa		[%o1 + %o0] ASI_PNF, %o3		/* Load		Group		*/

	addcc		%g3, %g1, %o4				/* IEU1				*/
	srlx		%g3, 32, %g3				/* IEU0				*/
	andcc		%g3, %g2, %g0				/* IEU1		Group		*/
	be,pt		%xcc, 3f				/* CTI				*/

	 srlx		%o4, 56, %o5				/* IEU0				*/
	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4f				/* CTI				*/
	 srlx		%o4, 48, %o5				/* IEU0				*/

	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4f				/* CTI				*/
	 srlx		%o4, 40, %o5				/* IEU0				*/
	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/

	be,pn		%icc, 4f				/* CTI				*/
	 srlx		%o4, 32, %o5				/* IEU0				*/
	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4f				/* CTI				*/

3:	 srlx		%o4, 24, %o5				/* IEU0				*/
	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4f				/* CTI				*/
	 srlx		%o4, 16, %o5				/* IEU0				*/

	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4f				/* CTI				*/
	 srlx		%o4, 8, %o5				/* IEU0				*/
	andcc		%o5, 0xff, %g0				/* IEU1		Group		*/

	be,pn		%icc, 4f				/* CTI				*/
	 andcc		%o4, 0xff, %g0				/* IEU1		Group		*/
	bne,a,pn	%icc, 2b				/* CTI				*/
	 ldxa		[%o1 + %o0] ASI_PNF, %o3		/* Load				*/

4:	retl							/* CTI+IEU1	Group		*/
	 clr		%o0					/* IEU0				*/

	.align		32
13:	mov		0xff, %g6				/* IEU0		Group		*/
#ifdef EIGHTBIT_NOT_RARE
	andcc		%g4, %g2, %g0				/* IEU1				*/
#else
	andcc		%g3, %g2, %g0				/* IEU1				*/
#endif
	be,pt		%xcc, 25f				/* CTI				*/
	 addcc		%g3, %g1, %o4				/* IEU1		Group		*/

	srlx		%g3, 32, %g3				/* IEU0				*/
	andcc		%g3, %g2, %g0				/* IEU1		Group		*/
	be,pt		%xcc, 23f				/* CTI				*/
	 sllx		%g6, 56, %o5				/* IEU0				*/

	andcc		%o4, %o5, %g0				/* IEU1		Group		*/
	be,pn		%xcc, 24f				/* CTI				*/
	 sllx		%g6, 48, %o5				/* IEU0				*/
	andcc		%o4, %o5, %g0				/* IEU1		Group		*/

	be,pn		%xcc, 24f				/* CTI				*/
	 sllx		%g6, 40, %o5				/* IEU0				*/
	andcc		%o4, %o5, %g0				/* IEU1		Group		*/
	be,pn		%xcc, 24f				/* CTI				*/

	 sllx		%g6, 32, %o5				/* IEU0				*/
	andcc		%o4, %o5, %g0				/* IEU1		Group		*/
	be,pn		%xcc, 24f				/* CTI				*/
23:	 sllx		%g6, 24, %o5				/* IEU0				*/

	andcc		%o4, %o5, %g0				/* IEU1		Group		*/
	be,pn		%icc, 24f				/* CTI				*/
	 sllx		%g6, 16, %o5				/* IEU0				*/
	andcc		%o4, %o5, %g0				/* IEU1		Group		*/

	be,pn		%icc, 24f				/* CTI				*/
	 sllx		%g6, 8, %o5				/* IEU0				*/
	andcc		%o4, %o5, %g0				/* IEU1		Group		*/
	be,pn		%icc, 24f				/* CTI				*/

	 mov		%g6, %o5				/* IEU0				*/
25:	cmp		%o4, %o3				/* IEU1		Group		*/
5:	mov		-1, %o0					/* IEU0				*/
	retl							/* CTI+IEU1	Group		*/

	 movgu		%xcc, 1, %o0				/* Single	Group		*/

	.align		16
24:	sub		%o5, 1, %g6				/* IEU0		Group		*/
	clr		%o0					/* IEU1				*/
	or		%o5, %g6, %o5				/* IEU0		Group		*/
	andn		%o4, %o5, %o4				/* IEU0		Group		*/

	andn		%o3, %o5, %o3				/* IEU1				*/
	cmp		%o4, %o3				/* IEU1		Group		*/
	movgu		%xcc, 1, %o0				/* Single	Group		*/
	retl							/* CTI+IEU1	Group		*/

	 movlu		%xcc, -1, %o0				/* Single	Group		*/
6:	retl							/* CTI+IEU1	Group		*/
	 mov		%o4, %o0				/* IEU0				*/

	.align		16
7:	ldub		[%o0], %o2				/* Load				*/
	add		%o0, 1, %o0				/* IEU1				*/
	ldub		[%o1], %o3				/* Load		Group		*/
	sllx		%g1, 32, %g2				/* IEU0				*/

8:	add		%o1, 1, %o1				/* IEU1				*/
	subcc		%o2, %o3, %o4				/* IEU1		Group		*/
	bne,pn		%xcc, 6b				/* CTI				*/
	 lduba		[%o0] ASI_PNF, %o2			/* Load				*/

	brz,pn		%o3, 4b					/* CTI+IEU1	Group		*/
	 lduba		[%o1] ASI_PNF, %o3			/* Load				*/
	andcc		%o0, 7, %g0				/* IEU1		Group		*/
	bne,a,pn	%icc, 8b				/* CTI				*/

	 add		%o0, 1, %o0				/* IEU0				*/
	or		%g1, %g2, %g1				/* IEU0		Group		*/
	andcc		%o1, 7, %g3				/* IEU1				*/
	be,a,pn		%icc, 1b				/* CTI				*/

	 ldxa		[%o0] ASI_PNF, %o2			/* Load		Group		*/
9:	sllx		%g3, 3, %g5				/* IEU0				*/
	mov		64, %o5					/* IEU1				*/
	sub		%o1, %g3, %o1				/* IEU0		Group		*/

	sub		%o5, %g5, %o5				/* IEU1				*/
	ldxa		[%o1] ASI_PNF, %g6			/* Load		Group		*/
	or		%g1, %g2, %g1				/* IEU0				*/
	sub		%o1, %o0, %o1				/* IEU1				*/

	sllx		%g1, 7, %g2				/* IEU0		Group		*/
	add		%o1, 8, %o1				/* IEU1				*/
								/* %g1 = 0101010101010101
								 * %g2 = 8080808080800880
								 * %g5 = number of bits to shift left
								 * %o5 = number of bits to shift right */
10:	sllx		%g6, %g5, %o3				/* IEU0		Group		*/
	ldxa		[%o1 + %o0] ASI_PNF, %g6		/* Load				*/

11:	srlx		%g6, %o5, %o4				/* IEU0		Group		*/
	ldxa		[%o0] ASI_PNF, %o2			/* Load				*/
	or		%o3, %o4, %o3				/* IEU1				*/
	add		%o0, 8, %o0				/* IEU0		Group		*/

	subcc		%o2, %o3, %g0				/* IEU1				*/
#ifdef EIGHTBIT_NOT_RARE
	sub		%o2, %g1, %g3				/* IEU0		Group		*/
	bne,pn		%xcc, 13b				/* CTI				*/
	 andn		%g3, %o2, %g4				/* IEU0		Group		*/

	andcc		%g4, %g2, %g0				/* IEU1		Group		*/
	be,pt		%xcc, 10b				/* CTI				*/
	 srlx		%g4, 32, %g4				/* IEU0				*/
	andcc		%g4, %g2, %g0				/* IEU1		Group		*/
#else
	bne,pn		%xcc, 13b				/* CTI				*/
	 sub		%o2, %g1, %g3				/* IEU0		Group		*/
	andcc		%g3, %g2, %g0				/* IEU1		Group		*/

	be,pt		%xcc, 10b				/* CTI				*/
	 srlx		%g3, 32, %g3				/* IEU0				*/
	andcc		%g3, %g2, %g0				/* IEU1		Group		*/
#endif
	be,pt		%xcc, 12f				/* CTI				*/

	 srlx		%o2, 56, %g3				/* IEU0				*/
	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/
	 srlx		%o2, 48, %g3				/* IEU0				*/

	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/
	 srlx		%o2, 40, %g3				/* IEU0				*/
	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/

	be,pn		%icc, 4b				/* CTI				*/
	 srlx		%o2, 32, %g3				/* IEU0				*/
	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/

12:	 srlx		%o2, 24, %g3				/* IEU0				*/
	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/
	 srlx		%o2, 16, %g3				/* IEU0				*/

	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/
	 srlx		%o2, 8, %g3				/* IEU0				*/
	andcc		%g3, 0xff, %g0				/* IEU1		Group		*/

	be,pn		%icc, 4b				/* CTI				*/
	 andcc		%o2, 0xff, %g0				/* IEU1		Group		*/
	be,pn		%icc, 4b				/* CTI				*/
	 sllx		%g6, %g5, %o3				/* IEU0				*/

	ba,pt		%xcc, 11b				/* CTI		Group		*/
	 ldxa		[%o1 + %o0] ASI_PNF, %g6		/* Load				*/
END(strcmp)
libc_hidden_builtin_def (strcmp)
Commit	Line	Data
ae6b8730 RH	1	/* Compare two strings for differences.
ae6b8730 RH	2	For SPARC v9.
62f29da7	3	Copyright (C) 1997, 1999, 2003 Free Software Foundation, Inc.
ae6b8730 RH	4	This file is part of the GNU C Library.
	5	Contributed by Jan Vondrak <jvon4518@ss1000.ms.mff.cuni.cz> and
	6	Jakub Jelinek <jj@ultra.linux.cz>.
	7
	8	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	9	modify it under the terms of the GNU Lesser General Public
	10	License as published by the Free Software Foundation; either
	11	version 2.1 of the License, or (at your option) any later version.
ae6b8730 RH	12
	13	The GNU C Library is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	16	Lesser General Public License for more details.
ae6b8730	17
41bdb6e2 AJ	18	You should have received a copy of the GNU Lesser General Public
	19	License along with the GNU C Library; if not, write to the Free
	20	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	21	02111-1307 USA. */
ae6b8730 RH	22
	23	#include <sysdep.h>
	24	#include <asm/asi.h>
8cb079d4 UD	25	#ifndef XCC
	26	.register %g2, #scratch
	27	.register %g3, #scratch
62f29da7	28	.register %g6, #scratch
8cb079d4	29	#endif
ae6b8730 RH	30
	31	/* Normally, this uses
	32	((xword - 0x0101010101010101) & 0x8080808080808080) test
	33	to find out if any byte in xword could be zero. This is fast, but
	34	also gives false alarm for any byte in range 0x81-0xff. It does
	35	not matter for correctness, as if this test tells us there could
	36	be some zero byte, we check it byte by byte, but if bytes with
	37	high bits set are common in the strings, then this will give poor
	38	performance. You can #define EIGHTBIT_NOT_RARE and the algorithm
	39	will use one tick slower, but more precise test
	40	((xword - 0x0101010101010101) & (~xword) & 0x8080808080808080),
	41	which does not give any false alarms (but if some bits are set,
	42	one cannot assume from it which bytes are zero and which are not).
	43	It is yet to be measured, what is the correct default for glibc
	44	in these days for an average user.
	45	*/
	46
	47	.text
	48	.align 32
	49	ENTRY(strcmp)
	50	sethi %hi(0x01010101), %g1 /* IEU0 Group */
	51	andcc %o0, 7, %g0 /* IEU1 */
	52	bne,pn %icc, 7f /* CTI */
	53	or %g1, %lo(0x01010101), %g1 /* IEU0 Group */
	54
	55	andcc %o1, 7, %g3 /* IEU1 */
	56	bne,pn %icc, 9f /* CTI */
	57	sllx %g1, 32, %g2 /* IEU0 Group */
	58	ldx [%o0], %o2 /* Load */
	59
	60	or %g1, %g2, %g1 /* IEU0 Group */
	61	1: ldx [%o1], %o3 /* Load */
	62	sub %o1, %o0, %o1 /* IEU1 */
	63	sllx %g1, 7, %g2 /* IEU0 Group */
	64
	65	2: add %o0, 8, %o0 /* IEU1 */
	66	sub %o2, %g1, %g3 /* IEU0 Group */
	67	subcc %o2, %o3, %g0 /* IEU1 */
	68	bne,pn %xcc, 13f /* CTI */
	69
	70	#ifdef EIGHTBIT_NOT_RARE
	71	andn %g3, %o2, %g4 /* IEU0 Group */
	72	ldxa [%o0] ASI_PNF, %o2 /* Load */
	73	andcc %g4, %g2, %g0 /* IEU1 Group */
	74	#else
	75	ldxa [%o0] ASI_PNF, %o2 /* Load Group */
	76	andcc %g3, %g2, %g0 /* IEU1 */
	77	#endif
	78	be,a,pt %xcc, 2b /* CTI */
	79	ldxa [%o1 + %o0] ASI_PNF, %o3 /* Load Group */
	80
	81	addcc %g3, %g1, %o4 /* IEU1 */
	82	srlx %g3, 32, %g3 /* IEU0 */
	83	andcc %g3, %g2, %g0 /* IEU1 Group */
	84	be,pt %xcc, 3f /* CTI */
	85
	86	srlx %o4, 56, %o5 /* IEU0 */
	87	andcc %o5, 0xff, %g0 /* IEU1 Group */
	88	be,pn %icc, 4f /* CTI */
	89	srlx %o4, 48, %o5 /* IEU0 */
	90
	91	andcc %o5, 0xff, %g0 /* IEU1 Group */
	92	be,pn %icc, 4f /* CTI */
	93	srlx %o4, 40, %o5 /* IEU0 */
94	andcc %o5, 0xff, %g0 /* IEU1 Group */
95
96	be,pn %icc, 4f /* CTI */
97	srlx %o4, 32, %o5 /* IEU0 */
98	andcc %o5, 0xff, %g0 /* IEU1 Group */
99	be,pn %icc, 4f /* CTI */
100
101	3: srlx %o4, 24, %o5 /* IEU0 */
102	andcc %o5, 0xff, %g0 /* IEU1 Group */
103	be,pn %icc, 4f /* CTI */
104	srlx %o4, 16, %o5 /* IEU0 */
105
106	andcc %o5, 0xff, %g0 /* IEU1 Group */
107	be,pn %icc, 4f /* CTI */
108	srlx %o4, 8, %o5 /* IEU0 */
109	andcc %o5, 0xff, %g0 /* IEU1 Group */
110
111	be,pn %icc, 4f /* CTI */
112	andcc %o4, 0xff, %g0 /* IEU1 Group */
113	bne,a,pn %icc, 2b /* CTI */
114	ldxa [%o1 + %o0] ASI_PNF, %o3 /* Load */
115
116	4: retl /* CTI+IEU1 Group */
117	clr %o0 /* IEU0 */
118
119	.align 32
62f29da7	120	13: mov 0xff, %g6 /* IEU0 Group */
ae6b8730 RH	121	#ifdef EIGHTBIT_NOT_RARE
	122	andcc %g4, %g2, %g0 /* IEU1 */
	123	#else
	124	andcc %g3, %g2, %g0 /* IEU1 */
	125	#endif
	126	be,pt %xcc, 25f /* CTI */
	127	addcc %g3, %g1, %o4 /* IEU1 Group */
	128
	129	srlx %g3, 32, %g3 /* IEU0 */
	130	andcc %g3, %g2, %g0 /* IEU1 Group */
	131	be,pt %xcc, 23f /* CTI */
62f29da7	132	sllx %g6, 56, %o5 /* IEU0 */
ae6b8730 RH	133
	134	andcc %o4, %o5, %g0 /* IEU1 Group */
	135	be,pn %xcc, 24f /* CTI */
62f29da7	136	sllx %g6, 48, %o5 /* IEU0 */
ae6b8730 RH	137	andcc %o4, %o5, %g0 /* IEU1 Group */
	138
	139	be,pn %xcc, 24f /* CTI */
62f29da7	140	sllx %g6, 40, %o5 /* IEU0 */
ae6b8730 RH	141	andcc %o4, %o5, %g0 /* IEU1 Group */
	142	be,pn %xcc, 24f /* CTI */
	143
62f29da7	144	sllx %g6, 32, %o5 /* IEU0 */
ae6b8730 RH	145	andcc %o4, %o5, %g0 /* IEU1 Group */
ae6b8730 RH	146	be,pn %xcc, 24f /* CTI */
62f29da7	147	23: sllx %g6, 24, %o5 /* IEU0 */
ae6b8730 RH	148
	149	andcc %o4, %o5, %g0 /* IEU1 Group */
	150	be,pn %icc, 24f /* CTI */
62f29da7	151	sllx %g6, 16, %o5 /* IEU0 */
ae6b8730 RH	152	andcc %o4, %o5, %g0 /* IEU1 Group */
	153
	154	be,pn %icc, 24f /* CTI */
62f29da7	155	sllx %g6, 8, %o5 /* IEU0 */
ae6b8730 RH	156	andcc %o4, %o5, %g0 /* IEU1 Group */
	157	be,pn %icc, 24f /* CTI */
	158
62f29da7	159	mov %g6, %o5 /* IEU0 */
ae6b8730 RH	160	25: cmp %o4, %o3 /* IEU1 Group */
	161	5: mov -1, %o0 /* IEU0 */
	162	retl /* CTI+IEU1 Group */
	163
	164	movgu %xcc, 1, %o0 /* Single Group */
	165
	166	.align 16
62f29da7	167	24: sub %o5, 1, %g6 /* IEU0 Group */
ae6b8730	168	clr %o0 /* IEU1 */
62f29da7	169	or %o5, %g6, %o5 /* IEU0 Group */
ae6b8730 RH	170	andn %o4, %o5, %o4 /* IEU0 Group */
	171
	172	andn %o3, %o5, %o3 /* IEU1 */
	173	cmp %o4, %o3 /* IEU1 Group */
	174	movgu %xcc, 1, %o0 /* Single Group */
	175	retl /* CTI+IEU1 Group */
	176
	177	movlu %xcc, -1, %o0 /* Single Group */
	178	6: retl /* CTI+IEU1 Group */
	179	mov %o4, %o0 /* IEU0 */
	180
	181	.align 16
	182	7: ldub [%o0], %o2 /* Load */
	183	add %o0, 1, %o0 /* IEU1 */
	184	ldub [%o1], %o3 /* Load Group */
	185	sllx %g1, 32, %g2 /* IEU0 */
	186
	187	8: add %o1, 1, %o1 /* IEU1 */
	188	subcc %o2, %o3, %o4 /* IEU1 Group */
	189	bne,pn %xcc, 6b /* CTI */
	190	lduba [%o0] ASI_PNF, %o2 /* Load */
	191
	192	brz,pn %o3, 4b /* CTI+IEU1 Group */
	193	lduba [%o1] ASI_PNF, %o3 /* Load */
	194	andcc %o0, 7, %g0 /* IEU1 Group */
	195	bne,a,pn %icc, 8b /* CTI */
	196
	197	add %o0, 1, %o0 /* IEU0 */
	198	or %g1, %g2, %g1 /* IEU0 Group */
	199	andcc %o1, 7, %g3 /* IEU1 */
	200	be,a,pn %icc, 1b /* CTI */
	201
	202	ldxa [%o0] ASI_PNF, %o2 /* Load Group */
	203	9: sllx %g3, 3, %g5 /* IEU0 */
	204	mov 64, %o5 /* IEU1 */
	205	sub %o1, %g3, %o1 /* IEU0 Group */
	206
	207	sub %o5, %g5, %o5 /* IEU1 */
62f29da7	208	ldxa [%o1] ASI_PNF, %g6 /* Load Group */
ae6b8730 RH	209	or %g1, %g2, %g1 /* IEU0 */
	210	sub %o1, %o0, %o1 /* IEU1 */
	211
	212	sllx %g1, 7, %g2 /* IEU0 Group */
	213	add %o1, 8, %o1 /* IEU1 */
	214	/* %g1 = 0101010101010101
	215	* %g2 = 8080808080800880
	216	* %g5 = number of bits to shift left
	217	* %o5 = number of bits to shift right */
62f29da7 UD	218	10: sllx %g6, %g5, %o3 /* IEU0 Group */
62f29da7 UD	219	ldxa [%o1 + %o0] ASI_PNF, %g6 /* Load */
ae6b8730	220
62f29da7	221	11: srlx %g6, %o5, %o4 /* IEU0 Group */
ae6b8730 RH	222	ldxa [%o0] ASI_PNF, %o2 /* Load */
	223	or %o3, %o4, %o3 /* IEU1 */
	224	add %o0, 8, %o0 /* IEU0 Group */
	225
	226	subcc %o2, %o3, %g0 /* IEU1 */
	227	#ifdef EIGHTBIT_NOT_RARE
	228	sub %o2, %g1, %g3 /* IEU0 Group */
	229	bne,pn %xcc, 13b /* CTI */
	230	andn %g3, %o2, %g4 /* IEU0 Group */
	231
	232	andcc %g4, %g2, %g0 /* IEU1 Group */
	233	be,pt %xcc, 10b /* CTI */
	234	srlx %g4, 32, %g4 /* IEU0 */
	235	andcc %g4, %g2, %g0 /* IEU1 Group */
	236	#else
	237	bne,pn %xcc, 13b /* CTI */
	238	sub %o2, %g1, %g3 /* IEU0 Group */
	239	andcc %g3, %g2, %g0 /* IEU1 Group */
	240
	241	be,pt %xcc, 10b /* CTI */
	242	srlx %g3, 32, %g3 /* IEU0 */
	243	andcc %g3, %g2, %g0 /* IEU1 Group */
	244	#endif
	245	be,pt %xcc, 12f /* CTI */
	246
	247	srlx %o2, 56, %g3 /* IEU0 */
	248	andcc %g3, 0xff, %g0 /* IEU1 Group */
	249	be,pn %icc, 4b /* CTI */
	250	srlx %o2, 48, %g3 /* IEU0 */
	251
	252	andcc %g3, 0xff, %g0 /* IEU1 Group */
	253	be,pn %icc, 4b /* CTI */
	254	srlx %o2, 40, %g3 /* IEU0 */
	255	andcc %g3, 0xff, %g0 /* IEU1 Group */
	256
	257	be,pn %icc, 4b /* CTI */
	258	srlx %o2, 32, %g3 /* IEU0 */
	259	andcc %g3, 0xff, %g0 /* IEU1 Group */
	260	be,pn %icc, 4b /* CTI */
	261
	262	12: srlx %o2, 24, %g3 /* IEU0 */
	263	andcc %g3, 0xff, %g0 /* IEU1 Group */
	264	be,pn %icc, 4b /* CTI */
	265	srlx %o2, 16, %g3 /* IEU0 */
	266
	267	andcc %g3, 0xff, %g0 /* IEU1 Group */
	268	be,pn %icc, 4b /* CTI */
	269	srlx %o2, 8, %g3 /* IEU0 */
	270	andcc %g3, 0xff, %g0 /* IEU1 Group */
	271
	272	be,pn %icc, 4b /* CTI */
	273	andcc %o2, 0xff, %g0 /* IEU1 Group */
	274	be,pn %icc, 4b /* CTI */
62f29da7	275	sllx %g6, %g5, %o3 /* IEU0 */
ae6b8730 RH	276
ae6b8730 RH	277	ba,pt %xcc, 11b /* CTI Group */
62f29da7	278	ldxa [%o1 + %o0] ASI_PNF, %g6 /* Load */
ae6b8730	279	END(strcmp)
85dd1003	280	libc_hidden_builtin_def (strcmp)