1 files changed, 0 insertions, 247 deletions
diff --git a/sysdeps/powerpc/powerpc64/power8/strcmp.S b/sysdeps/powerpc/powerpc64/power8/strcmp.S
deleted file mode 100644
index 770484f1e1..0000000000
--- a/sysdeps/powerpc/powerpc64/power8/strcmp.S
+++ /dev/null
@@ -1,247 +0,0 @@
-/* Optimized strcmp implementation for PowerPC64/POWER8.
-   Copyright (C) 2015-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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>
-
-#ifndef STRCMP
-# define STRCMP strcmp
-#endif
-
-/* Implements the function
-
-   size_t [r3] strcmp (const char *s1 [r3], const char *s2 [r4])
-
-   The implementation uses unaligned doubleword access to avoid specialized
-   code paths depending of data alignment.  Although recent powerpc64 uses
-   64K as default, the page cross handling assumes minimum page size of
-   4k.  */
-
-EALIGN (STRCMP, 4, 0)
-	li	r0,0
-
-	/* Check if [s1]+16 or [s2]+16 will cross a 4K page boundary using
-	   the code:
-
-	    (((size_t) s1) % PAGE_SIZE > (PAGE_SIZE - ITER_SIZE))
-
-	   with PAGE_SIZE being 4096 and ITER_SIZE begin 16.  */
-
-	rldicl	r7,r3,0,52
-	rldicl	r9,r4,0,52
-	cmpldi	cr7,r7,4096-16
-	bgt	cr7,L(pagecross_check)
-	cmpldi	cr5,r9,4096-16
-	bgt	cr5,L(pagecross_check)
-
-	/* For short string up to 16 bytes, load both s1 and s2 using
-	   unaligned dwords and compare.  */
-	ld	r8,0(r3)
-	ld	r10,0(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	ld	r8,8(r3)
-	ld	r10,8(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	addi	r7,r3,16
-	addi	r4,r4,16
-
-L(align_8b):
-	/* Now it has checked for first 16 bytes, align source1 to doubleword
-	   and adjust source2 address.  */
-	rldicl	r9,r7,0,61	/* source1 alignment to doubleword  */
-	subf	r4,r9,r4	/* Adjust source2 address based on source1
-				   alignment.  */
-	rldicr	r7,r7,0,60	/* Align source1 to doubleword.  */
-
-	/* At this point, source1 alignment is 0 and source2 alignment is
-	   between 0 and 7.  Check is source2 alignment is 0, meaning both
-	   sources have the same alignment.  */
-	andi.	r9,r4,0x7
-	bne	cr0,L(loop_diff_align)
-
-	/* If both source1 and source2 are doubleword aligned, there is no
-	   need for page boundary cross checks.  */
-
-	ld	r8,0(r7)
-	ld	r10,0(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	.align 4
-L(loop_equal_align):
-	ld	r8,8(r7)
-	ld	r10,8(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	ld	r8,16(r7)
-	ld	r10,16(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	ldu	r8,24(r7)
-	ldu	r10,24(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-
-	b	L(loop_equal_align)
-
-	/* A zero byte was found in r8 (s1 dword), r9 contains the cmpb
-	   result and r10 the dword from s2.  To code isolate the byte
-	   up to end (including the '\0'), masking with 0xFF the remaining
-	   ones:
-
-           #if __LITTLE_ENDIAN__
-	     (__builtin_ffsl (x) - 1) = counting trailing zero bits
-	     r9 = (__builtin_ffsl (r9) - 1) + 8;
-	     r9 = -1UL << r9
-	   #else
-	     r9  = __builtin_clzl (r9) + 8;
-	     r9  = -1UL >> r9
-	   #endif
-	     r8  = r8  | r9
-	     r10 = r10 | r9  */
-
-#ifdef __LITTLE_ENDIAN__
-	nor 	r9,r9,r9
-L(different_nocmpb):
-	neg	r3,r9
-	and	r9,r9,r3
-	cntlzd	r9,r9
-	subfic	r9,r9,63
-#else
-	not	r9,r9
-L(different_nocmpb):
-	cntlzd	r9,r9
-	subfic	r9,r9,56
-#endif
-	srd	r3,r8,r9
-	srd	r10,r10,r9
-	rldicl	r10,r10,0,56
-	rldicl	r3,r3,0,56
-	subf	r3,r10,r3
-	extsw	r3,r3
-	blr
-
-	.align	4
-L(pagecross_check):
-	subfic	r9,r9,4096
-	subfic	r7,r7,4096
-	cmpld	cr7,r7,r9
-	bge	cr7,L(pagecross)
-	mr	r7,r9
-
-	/* If unaligned 16 bytes reads across a 4K page boundary, it uses
-	   a simple byte a byte comparison until the page alignment for s1
-	   is reached.  */
-L(pagecross):
-	add	r7,r3,r7
-	subf	r9,r3,r7
-	mtctr	r9
-
-	.align	4
-L(pagecross_loop):
-	/* Loads a byte from s1 and s2, compare if *s1 is equal to *s2
-	   and if *s1 is '\0'.  */
-	lbz	r9,0(r3)
-	lbz	r10,0(r4)
-	addi	r3,r3,1
-	addi	r4,r4,1
-	cmplw	cr7,r9,r10
-	cmpdi	cr5,r9,r0
-	bne	cr7,L(pagecross_ne)
-	beq	cr5,L(pagecross_nullfound)
-	bdnz	L(pagecross_loop)
-	b	L(align_8b)
-
-	.align	4
-	/* The unaligned read of source2 will cross a 4K page boundary,
-	   and the different byte or NULL maybe be in the remaining page
-	   bytes. Since it can not use the unaligned load, the algorithm
-	   reads and compares 8 bytes to keep source1 doubleword aligned.  */
-L(check_source2_byte):
-	li	r9,8
-	mtctr	r9
-
-	.align	4
-L(check_source2_byte_loop):
-	lbz	r9,0(r7)
-	lbz	r10,0(r4)
-	addi	r7,r7,1
-	addi	r4,r4,1
-	cmplw	cr7,r9,10
-	cmpdi	r5,r9,0
-	bne	cr7,L(pagecross_ne)
-	beq	cr5,L(pagecross_nullfound)
-	bdnz	L(check_source2_byte_loop)
-
-	/* If source2 is unaligned to doubleword, the code needs to check
-	   on each interation if the unaligned doubleword access will cross
-	   a 4k page boundary.  */
-	.align	5
-L(loop_unaligned):
-	ld	r8,0(r7)
-	ld	r10,0(r4)
-	cmpb	r12,r8,r0
-	cmpb	r11,r8,r10
-	orc.	r9,r12,r11
-	bne	cr0,L(different_nocmpb)
-	addi	r7,r7,8
-	addi	r4,r4,8
-
-L(loop_diff_align):
-	/* Check if [src2]+8 cross a 4k page boundary:
-
-	     srcin2 % PAGE_SIZE > (PAGE_SIZE - 8)
-
-	     with PAGE_SIZE being 4096.  */
-	rldicl	r9,r4,0,52
-	cmpldi	cr7,r9,4088
-	ble	cr7,L(loop_unaligned)
-	b	L(check_source2_byte)
-
-	.align	4
-L(pagecross_ne):
-	extsw	r3,r9
-	mr	r9,r10
-L(pagecross_retdiff):
-	subf	r9,r9,r3
-	extsw	r3,r9
-	blr
-
-	.align	4
-L(pagecross_nullfound):
-	li	r3,0
-	b	L(pagecross_retdiff)
-END (STRCMP)
-libc_hidden_builtin_def (strcmp)