From ea4c320faffe618f70854985887c7ca08a1dcf4b Mon Sep 17 00:00:00 2001
From: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Wed, 23 Mar 2022 16:57:46 -0500
Subject: [PATCH] x86: Remove AVX str{n}casecmp

The rational is:

1. SSE42 has nearly identical logic so any benefit is minimal (3.4%
   regression on Tigerlake using SSE42 versus AVX across the
   benchtest suite).
2. AVX2 version covers the majority of targets that previously
   prefered it.
3. The targets where AVX would still be best (SnB and IVB) are
   becoming outdated.

All in all the saving the code size is worth it.

All string/memory tests pass.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

(cherry picked from commit 305769b2a15c2e96f9e1b5195d3c4e0d6f0f4b68)
---
 sysdeps/x86_64/multiarch/Makefile           |   2 -
 sysdeps/x86_64/multiarch/ifunc-impl-list.c  |  12 -
 sysdeps/x86_64/multiarch/ifunc-strcasecmp.h |   4 -
 sysdeps/x86_64/multiarch/strcasecmp_l-avx.S |  22 --
 sysdeps/x86_64/multiarch/strcmp-sse42.S     | 240 +++++++++-----------
 sysdeps/x86_64/multiarch/strncase_l-avx.S   |  22 --
 6 files changed, 105 insertions(+), 197 deletions(-)
 delete mode 100644 sysdeps/x86_64/multiarch/strcasecmp_l-avx.S
 delete mode 100644 sysdeps/x86_64/multiarch/strncase_l-avx.S

diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index 359712c1..bca82e38 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -50,7 +50,6 @@ sysdep_routines += \
   stpncpy-evex \
   stpncpy-sse2-unaligned \
   stpncpy-ssse3 \
-  strcasecmp_l-avx \
   strcasecmp_l-avx2 \
   strcasecmp_l-avx2-rtm \
   strcasecmp_l-evex \
@@ -91,7 +90,6 @@ sysdep_routines += \
   strlen-avx2-rtm \
   strlen-evex \
   strlen-sse2 \
-  strncase_l-avx \
   strncase_l-avx2 \
   strncase_l-avx2-rtm \
   strncase_l-evex \
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index 1dedc637..14314367 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -429,9 +429,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 			      (CPU_FEATURE_USABLE (AVX2)
 			       && CPU_FEATURE_USABLE (RTM)),
 			      __strcasecmp_avx2_rtm)
-	      IFUNC_IMPL_ADD (array, i, strcasecmp,
-			      CPU_FEATURE_USABLE (AVX),
-			      __strcasecmp_avx)
 	      IFUNC_IMPL_ADD (array, i, strcasecmp,
 			      CPU_FEATURE_USABLE (SSE4_2),
 			      __strcasecmp_sse42)
@@ -453,9 +450,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 			      (CPU_FEATURE_USABLE (AVX2)
 			       && CPU_FEATURE_USABLE (RTM)),
 			      __strcasecmp_l_avx2_rtm)
-	      IFUNC_IMPL_ADD (array, i, strcasecmp_l,
-			      CPU_FEATURE_USABLE (AVX),
-			      __strcasecmp_l_avx)
 	      IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 			      CPU_FEATURE_USABLE (SSE4_2),
 			      __strcasecmp_l_sse42)
@@ -591,9 +585,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 			      (CPU_FEATURE_USABLE (AVX2)
 			       && CPU_FEATURE_USABLE (RTM)),
 			      __strncasecmp_avx2_rtm)
-	      IFUNC_IMPL_ADD (array, i, strncasecmp,
-			      CPU_FEATURE_USABLE (AVX),
-			      __strncasecmp_avx)
 	      IFUNC_IMPL_ADD (array, i, strncasecmp,
 			      CPU_FEATURE_USABLE (SSE4_2),
 			      __strncasecmp_sse42)
@@ -616,9 +607,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 			      (CPU_FEATURE_USABLE (AVX2)
 			       && CPU_FEATURE_USABLE (RTM)),
 			      __strncasecmp_l_avx2_rtm)
-	      IFUNC_IMPL_ADD (array, i, strncasecmp_l,
-			      CPU_FEATURE_USABLE (AVX),
-			      __strncasecmp_l_avx)
 	      IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 			      CPU_FEATURE_USABLE (SSE4_2),
 			      __strncasecmp_l_sse42)
diff --git a/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h b/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h
index 6dd49a21..34cfbb8f 100644
--- a/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h
+++ b/sysdeps/x86_64/multiarch/ifunc-strcasecmp.h
@@ -22,7 +22,6 @@
 extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden;
 extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden;
 extern __typeof (REDIRECT_NAME) OPTIMIZE (sse42) attribute_hidden;
-extern __typeof (REDIRECT_NAME) OPTIMIZE (avx) attribute_hidden;
 extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2) attribute_hidden;
 extern __typeof (REDIRECT_NAME) OPTIMIZE (avx2_rtm) attribute_hidden;
 extern __typeof (REDIRECT_NAME) OPTIMIZE (evex) attribute_hidden;
@@ -46,9 +45,6 @@ IFUNC_SELECTOR (void)
         return OPTIMIZE (avx2);
     }
 
-  if (CPU_FEATURE_USABLE_P (cpu_features, AVX))
-    return OPTIMIZE (avx);
-
   if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_2)
       && !CPU_FEATURES_ARCH_P (cpu_features, Slow_SSE4_2))
     return OPTIMIZE (sse42);
diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-avx.S b/sysdeps/x86_64/multiarch/strcasecmp_l-avx.S
deleted file mode 100644
index 56a03547..00000000
--- a/sysdeps/x86_64/multiarch/strcasecmp_l-avx.S
+++ /dev/null
@@ -1,22 +0,0 @@
-/* strcasecmp_l optimized with AVX.
-   Copyright (C) 2017-2018 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/>.  */
-
-#define STRCMP_SSE42 __strcasecmp_l_avx
-#define USE_AVX 1
-#define USE_AS_STRCASECMP_L
-#include "strcmp-sse42.S"
diff --git a/sysdeps/x86_64/multiarch/strcmp-sse42.S b/sysdeps/x86_64/multiarch/strcmp-sse42.S
index 59e8ddfc..0a42b7a4 100644
--- a/sysdeps/x86_64/multiarch/strcmp-sse42.S
+++ b/sysdeps/x86_64/multiarch/strcmp-sse42.S
@@ -42,13 +42,8 @@
 # define UPDATE_STRNCMP_COUNTER
 #endif
 
-#ifdef USE_AVX
-# define SECTION	avx
-# define GLABEL(l)	l##_avx
-#else
-# define SECTION	sse4.2
-# define GLABEL(l)	l##_sse42
-#endif
+#define SECTION	sse4.2
+#define GLABEL(l)	l##_sse42
 
 #define LABEL(l)	.L##l
 
@@ -106,21 +101,7 @@ END (GLABEL(__strncasecmp))
 #endif
 
 
-#ifdef USE_AVX
-# define movdqa vmovdqa
-# define movdqu vmovdqu
-# define pmovmskb vpmovmskb
-# define pcmpistri vpcmpistri
-# define psubb vpsubb
-# define pcmpeqb vpcmpeqb
-# define psrldq vpsrldq
-# define pslldq vpslldq
-# define palignr vpalignr
-# define pxor vpxor
-# define D(arg) arg, arg
-#else
-# define D(arg) arg
-#endif
+#define arg arg
 
 STRCMP_SSE42:
 	cfi_startproc
@@ -192,18 +173,7 @@ LABEL(case_add):
 	movdqu	(%rdi), %xmm1
 	movdqu	(%rsi), %xmm2
 #if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
-# ifdef USE_AVX
-#  define TOLOWER(reg1, reg2) \
-	vpaddb	LCASE_MIN_reg, reg1, %xmm7;					\
-	vpaddb	LCASE_MIN_reg, reg2, %xmm8;					\
-	vpcmpgtb LCASE_MAX_reg, %xmm7, %xmm7;					\
-	vpcmpgtb LCASE_MAX_reg, %xmm8, %xmm8;					\
-	vpandn	CASE_ADD_reg, %xmm7, %xmm7;					\
-	vpandn	CASE_ADD_reg, %xmm8, %xmm8;					\
-	vpaddb	%xmm7, reg1, reg1;					\
-	vpaddb	%xmm8, reg2, reg2
-# else
-#  define TOLOWER(reg1, reg2) \
+# define TOLOWER(reg1, reg2) \
 	movdqa	LCASE_MIN_reg, %xmm7;					\
 	movdqa	LCASE_MIN_reg, %xmm8;					\
 	paddb	reg1, %xmm7;					\
@@ -214,15 +184,15 @@ LABEL(case_add):
 	pandn	CASE_ADD_reg, %xmm8;					\
 	paddb	%xmm7, reg1;					\
 	paddb	%xmm8, reg2
-# endif
+
 	TOLOWER (%xmm1, %xmm2)
 #else
 # define TOLOWER(reg1, reg2)
 #endif
-	pxor	%xmm0, D(%xmm0)		/* clear %xmm0 for null char checks */
-	pcmpeqb	%xmm1, D(%xmm0)		/* Any null chars? */
-	pcmpeqb	%xmm2, D(%xmm1)		/* compare first 16 bytes for equality */
-	psubb	%xmm0, D(%xmm1)		/* packed sub of comparison results*/
+	pxor	%xmm0, %xmm0		/* clear %xmm0 for null char checks */
+	pcmpeqb	%xmm1, %xmm0		/* Any null chars? */
+	pcmpeqb	%xmm2, %xmm1		/* compare first 16 bytes for equality */
+	psubb	%xmm0, %xmm1		/* packed sub of comparison results*/
 	pmovmskb %xmm1, %edx
 	sub	$0xffff, %edx		/* if first 16 bytes are same, edx == 0xffff */
 	jnz	LABEL(less16bytes)/* If not, find different value or null char */
@@ -246,7 +216,7 @@ LABEL(crosscache):
 	xor	%r8d, %r8d
 	and	$0xf, %ecx		/* offset of rsi */
 	and	$0xf, %eax		/* offset of rdi */
-	pxor	%xmm0, D(%xmm0)		/* clear %xmm0 for null char check */
+	pxor	%xmm0, %xmm0		/* clear %xmm0 for null char check */
 	cmp	%eax, %ecx
 	je	LABEL(ashr_0)		/* rsi and rdi relative offset same */
 	ja	LABEL(bigger)
@@ -260,7 +230,7 @@ LABEL(bigger):
 	sub	%rcx, %r9
 	lea	LABEL(unaligned_table)(%rip), %r10
 	movslq	(%r10, %r9,4), %r9
-	pcmpeqb	%xmm1, D(%xmm0)		/* Any null chars? */
+	pcmpeqb	%xmm1, %xmm0		/* Any null chars? */
 	lea	(%r10, %r9), %r10
 	_CET_NOTRACK jmp *%r10		/* jump to corresponding case */
 
@@ -273,15 +243,15 @@ LABEL(bigger):
 LABEL(ashr_0):
 
 	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, D(%xmm0)		/* Any null chars? */
+	pcmpeqb	%xmm1, %xmm0		/* Any null chars? */
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
-	pcmpeqb	(%rdi), D(%xmm1)	/* compare 16 bytes for equality */
+	pcmpeqb	(%rdi), %xmm1		/* compare 16 bytes for equality */
 #else
 	movdqa	(%rdi), %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm2, D(%xmm1)		/* compare 16 bytes for equality */
+	pcmpeqb	%xmm2, %xmm1		/* compare 16 bytes for equality */
 #endif
-	psubb	%xmm0, D(%xmm1)		/* packed sub of comparison results*/
+	psubb	%xmm0, %xmm1		/* packed sub of comparison results*/
 	pmovmskb %xmm1, %r9d
 	shr	%cl, %edx		/* adjust 0xffff for offset */
 	shr	%cl, %r9d		/* adjust for 16-byte offset */
@@ -361,10 +331,10 @@ LABEL(ashr_0_exit_use):
  */
 	.p2align 4
 LABEL(ashr_1):
-	pslldq	$15, D(%xmm2)		/* shift first string to align with second */
+	pslldq	$15, %xmm2		/* shift first string to align with second */
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)		/* compare 16 bytes for equality */
-	psubb	%xmm0, D(%xmm2)		/* packed sub of comparison results*/
+	pcmpeqb	%xmm1, %xmm2		/* compare 16 bytes for equality */
+	psubb	%xmm0, %xmm2		/* packed sub of comparison results*/
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx		/* adjust 0xffff for offset */
 	shr	%cl, %r9d		/* adjust for 16-byte offset */
@@ -392,7 +362,7 @@ LABEL(loop_ashr_1_use):
 
 LABEL(nibble_ashr_1_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $1, -16(%rdi, %rdx), D(%xmm0)
+	palignr $1, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -411,7 +381,7 @@ LABEL(nibble_ashr_1_restart_use):
 	jg	LABEL(nibble_ashr_1_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $1, -16(%rdi, %rdx), D(%xmm0)
+	palignr $1, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -431,7 +401,7 @@ LABEL(nibble_ashr_1_restart_use):
 LABEL(nibble_ashr_1_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$1, D(%xmm0)
+	psrldq	$1, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -449,10 +419,10 @@ LABEL(nibble_ashr_1_use):
  */
 	.p2align 4
 LABEL(ashr_2):
-	pslldq	$14, D(%xmm2)
+	pslldq	$14, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -480,7 +450,7 @@ LABEL(loop_ashr_2_use):
 
 LABEL(nibble_ashr_2_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $2, -16(%rdi, %rdx), D(%xmm0)
+	palignr $2, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -499,7 +469,7 @@ LABEL(nibble_ashr_2_restart_use):
 	jg	LABEL(nibble_ashr_2_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $2, -16(%rdi, %rdx), D(%xmm0)
+	palignr $2, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -519,7 +489,7 @@ LABEL(nibble_ashr_2_restart_use):
 LABEL(nibble_ashr_2_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$2, D(%xmm0)
+	psrldq	$2, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -537,10 +507,10 @@ LABEL(nibble_ashr_2_use):
  */
 	.p2align 4
 LABEL(ashr_3):
-	pslldq	$13, D(%xmm2)
+	pslldq	$13, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -568,7 +538,7 @@ LABEL(loop_ashr_3_use):
 
 LABEL(nibble_ashr_3_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $3, -16(%rdi, %rdx), D(%xmm0)
+	palignr $3, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -587,7 +557,7 @@ LABEL(nibble_ashr_3_restart_use):
 	jg	LABEL(nibble_ashr_3_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $3, -16(%rdi, %rdx), D(%xmm0)
+	palignr $3, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -607,7 +577,7 @@ LABEL(nibble_ashr_3_restart_use):
 LABEL(nibble_ashr_3_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$3, D(%xmm0)
+	psrldq	$3, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -625,10 +595,10 @@ LABEL(nibble_ashr_3_use):
  */
 	.p2align 4
 LABEL(ashr_4):
-	pslldq	$12, D(%xmm2)
+	pslldq	$12, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -657,7 +627,7 @@ LABEL(loop_ashr_4_use):
 
 LABEL(nibble_ashr_4_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $4, -16(%rdi, %rdx), D(%xmm0)
+	palignr $4, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -676,7 +646,7 @@ LABEL(nibble_ashr_4_restart_use):
 	jg	LABEL(nibble_ashr_4_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $4, -16(%rdi, %rdx), D(%xmm0)
+	palignr $4, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -696,7 +666,7 @@ LABEL(nibble_ashr_4_restart_use):
 LABEL(nibble_ashr_4_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$4, D(%xmm0)
+	psrldq	$4, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -714,10 +684,10 @@ LABEL(nibble_ashr_4_use):
  */
 	.p2align 4
 LABEL(ashr_5):
-	pslldq	$11, D(%xmm2)
+	pslldq	$11, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -746,7 +716,7 @@ LABEL(loop_ashr_5_use):
 
 LABEL(nibble_ashr_5_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $5, -16(%rdi, %rdx), D(%xmm0)
+	palignr $5, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -766,7 +736,7 @@ LABEL(nibble_ashr_5_restart_use):
 
 	movdqa	(%rdi, %rdx), %xmm0
 
-	palignr $5, -16(%rdi, %rdx), D(%xmm0)
+	palignr $5, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -786,7 +756,7 @@ LABEL(nibble_ashr_5_restart_use):
 LABEL(nibble_ashr_5_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$5, D(%xmm0)
+	psrldq	$5, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -804,10 +774,10 @@ LABEL(nibble_ashr_5_use):
  */
 	.p2align 4
 LABEL(ashr_6):
-	pslldq	$10, D(%xmm2)
+	pslldq	$10, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -836,7 +806,7 @@ LABEL(loop_ashr_6_use):
 
 LABEL(nibble_ashr_6_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $6, -16(%rdi, %rdx), D(%xmm0)
+	palignr $6, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -855,7 +825,7 @@ LABEL(nibble_ashr_6_restart_use):
 	jg	LABEL(nibble_ashr_6_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $6, -16(%rdi, %rdx), D(%xmm0)
+	palignr $6, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -875,7 +845,7 @@ LABEL(nibble_ashr_6_restart_use):
 LABEL(nibble_ashr_6_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$6, D(%xmm0)
+	psrldq	$6, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -893,10 +863,10 @@ LABEL(nibble_ashr_6_use):
  */
 	.p2align 4
 LABEL(ashr_7):
-	pslldq	$9, D(%xmm2)
+	pslldq	$9, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -925,7 +895,7 @@ LABEL(loop_ashr_7_use):
 
 LABEL(nibble_ashr_7_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $7, -16(%rdi, %rdx), D(%xmm0)
+	palignr $7, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -944,7 +914,7 @@ LABEL(nibble_ashr_7_restart_use):
 	jg	LABEL(nibble_ashr_7_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $7, -16(%rdi, %rdx), D(%xmm0)
+	palignr $7, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri	$0x1a,(%rsi,%rdx), %xmm0
 #else
@@ -964,7 +934,7 @@ LABEL(nibble_ashr_7_restart_use):
 LABEL(nibble_ashr_7_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$7, D(%xmm0)
+	psrldq	$7, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -982,10 +952,10 @@ LABEL(nibble_ashr_7_use):
  */
 	.p2align 4
 LABEL(ashr_8):
-	pslldq	$8, D(%xmm2)
+	pslldq	$8, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1014,7 +984,7 @@ LABEL(loop_ashr_8_use):
 
 LABEL(nibble_ashr_8_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $8, -16(%rdi, %rdx), D(%xmm0)
+	palignr $8, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1033,7 +1003,7 @@ LABEL(nibble_ashr_8_restart_use):
 	jg	LABEL(nibble_ashr_8_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $8, -16(%rdi, %rdx), D(%xmm0)
+	palignr $8, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1053,7 +1023,7 @@ LABEL(nibble_ashr_8_restart_use):
 LABEL(nibble_ashr_8_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$8, D(%xmm0)
+	psrldq	$8, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1071,10 +1041,10 @@ LABEL(nibble_ashr_8_use):
  */
 	.p2align 4
 LABEL(ashr_9):
-	pslldq	$7, D(%xmm2)
+	pslldq	$7, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1104,7 +1074,7 @@ LABEL(loop_ashr_9_use):
 LABEL(nibble_ashr_9_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
 
-	palignr $9, -16(%rdi, %rdx), D(%xmm0)
+	palignr $9, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1123,7 +1093,7 @@ LABEL(nibble_ashr_9_restart_use):
 	jg	LABEL(nibble_ashr_9_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $9, -16(%rdi, %rdx), D(%xmm0)
+	palignr $9, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1143,7 +1113,7 @@ LABEL(nibble_ashr_9_restart_use):
 LABEL(nibble_ashr_9_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$9, D(%xmm0)
+	psrldq	$9, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1161,10 +1131,10 @@ LABEL(nibble_ashr_9_use):
  */
 	.p2align 4
 LABEL(ashr_10):
-	pslldq	$6, D(%xmm2)
+	pslldq	$6, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1193,7 +1163,7 @@ LABEL(loop_ashr_10_use):
 
 LABEL(nibble_ashr_10_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $10, -16(%rdi, %rdx), D(%xmm0)
+	palignr $10, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1212,7 +1182,7 @@ LABEL(nibble_ashr_10_restart_use):
 	jg	LABEL(nibble_ashr_10_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $10, -16(%rdi, %rdx), D(%xmm0)
+	palignr $10, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1232,7 +1202,7 @@ LABEL(nibble_ashr_10_restart_use):
 LABEL(nibble_ashr_10_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$10, D(%xmm0)
+	psrldq	$10, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1250,10 +1220,10 @@ LABEL(nibble_ashr_10_use):
  */
 	.p2align 4
 LABEL(ashr_11):
-	pslldq	$5, D(%xmm2)
+	pslldq	$5, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1282,7 +1252,7 @@ LABEL(loop_ashr_11_use):
 
 LABEL(nibble_ashr_11_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $11, -16(%rdi, %rdx), D(%xmm0)
+	palignr $11, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1301,7 +1271,7 @@ LABEL(nibble_ashr_11_restart_use):
 	jg	LABEL(nibble_ashr_11_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $11, -16(%rdi, %rdx), D(%xmm0)
+	palignr $11, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1321,7 +1291,7 @@ LABEL(nibble_ashr_11_restart_use):
 LABEL(nibble_ashr_11_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$11, D(%xmm0)
+	psrldq	$11, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1339,10 +1309,10 @@ LABEL(nibble_ashr_11_use):
  */
 	.p2align 4
 LABEL(ashr_12):
-	pslldq	$4, D(%xmm2)
+	pslldq	$4, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1371,7 +1341,7 @@ LABEL(loop_ashr_12_use):
 
 LABEL(nibble_ashr_12_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $12, -16(%rdi, %rdx), D(%xmm0)
+	palignr $12, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1390,7 +1360,7 @@ LABEL(nibble_ashr_12_restart_use):
 	jg	LABEL(nibble_ashr_12_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $12, -16(%rdi, %rdx), D(%xmm0)
+	palignr $12, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1410,7 +1380,7 @@ LABEL(nibble_ashr_12_restart_use):
 LABEL(nibble_ashr_12_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$12, D(%xmm0)
+	psrldq	$12, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1428,10 +1398,10 @@ LABEL(nibble_ashr_12_use):
  */
 	.p2align 4
 LABEL(ashr_13):
-	pslldq	$3, D(%xmm2)
+	pslldq	$3, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1461,7 +1431,7 @@ LABEL(loop_ashr_13_use):
 
 LABEL(nibble_ashr_13_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $13, -16(%rdi, %rdx), D(%xmm0)
+	palignr $13, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1480,7 +1450,7 @@ LABEL(nibble_ashr_13_restart_use):
 	jg	LABEL(nibble_ashr_13_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $13, -16(%rdi, %rdx), D(%xmm0)
+	palignr $13, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1500,7 +1470,7 @@ LABEL(nibble_ashr_13_restart_use):
 LABEL(nibble_ashr_13_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$13, D(%xmm0)
+	psrldq	$13, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1518,10 +1488,10 @@ LABEL(nibble_ashr_13_use):
  */
 	.p2align 4
 LABEL(ashr_14):
-	pslldq  $2, D(%xmm2)
+	pslldq  $2, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1551,7 +1521,7 @@ LABEL(loop_ashr_14_use):
 
 LABEL(nibble_ashr_14_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $14, -16(%rdi, %rdx), D(%xmm0)
+	palignr $14, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1570,7 +1540,7 @@ LABEL(nibble_ashr_14_restart_use):
 	jg	LABEL(nibble_ashr_14_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $14, -16(%rdi, %rdx), D(%xmm0)
+	palignr $14, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1590,7 +1560,7 @@ LABEL(nibble_ashr_14_restart_use):
 LABEL(nibble_ashr_14_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$14, D(%xmm0)
+	psrldq	$14, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
@@ -1608,10 +1578,10 @@ LABEL(nibble_ashr_14_use):
  */
 	.p2align 4
 LABEL(ashr_15):
-	pslldq	$1, D(%xmm2)
+	pslldq	$1, %xmm2
 	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, D(%xmm2)
-	psubb	%xmm0, D(%xmm2)
+	pcmpeqb	%xmm1, %xmm2
+	psubb	%xmm0, %xmm2
 	pmovmskb %xmm2, %r9d
 	shr	%cl, %edx
 	shr	%cl, %r9d
@@ -1643,7 +1613,7 @@ LABEL(loop_ashr_15_use):
 
 LABEL(nibble_ashr_15_restart_use):
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $15, -16(%rdi, %rdx), D(%xmm0)
+	palignr $15, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1662,7 +1632,7 @@ LABEL(nibble_ashr_15_restart_use):
 	jg	LABEL(nibble_ashr_15_use)
 
 	movdqa	(%rdi, %rdx), %xmm0
-	palignr $15, -16(%rdi, %rdx), D(%xmm0)
+	palignr $15, -16(%rdi, %rdx), %xmm0
 #if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
 	pcmpistri $0x1a, (%rsi,%rdx), %xmm0
 #else
@@ -1682,7 +1652,7 @@ LABEL(nibble_ashr_15_restart_use):
 LABEL(nibble_ashr_15_use):
 	sub	$0x1000, %r10
 	movdqa	-16(%rdi, %rdx), %xmm0
-	psrldq	$15, D(%xmm0)
+	psrldq	$15, %xmm0
 	pcmpistri      $0x3a,%xmm0, %xmm0
 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
 	cmp	%r11, %rcx
diff --git a/sysdeps/x86_64/multiarch/strncase_l-avx.S b/sysdeps/x86_64/multiarch/strncase_l-avx.S
deleted file mode 100644
index 0c4e525b..00000000
--- a/sysdeps/x86_64/multiarch/strncase_l-avx.S
+++ /dev/null
@@ -1,22 +0,0 @@
-/* strncasecmp_l optimized with AVX.
-   Copyright (C) 2017-2018 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/>.  */
-
-#define STRCMP_SSE42 __strncasecmp_l_avx
-#define USE_AVX 1
-#define USE_AS_STRNCASECMP_L
-#include "strcmp-sse42.S"
-- 
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