x86: Rename generic functions with unique postfix for clarity

No functions are changed. It just renames generic implementations from
'{func}_sse2' to '{func}_generic'. This is just because the postfix
"_sse2" was overloaded and was used for files that had hand-optimized
sse2 assembly implementations and files that just redirected back
to the generic implementation.

Full xcheck passed on x86_64.

1 files changed, 0 insertions, 136 deletions

diff --git a/sysdeps/x86_64/multiarch/strspn-c.c b/sysdeps/x86_64/multiarch/strspn-c.c
deleted file mode 100644
index 6124033ceb..0000000000
--- a/sysdeps/x86_64/multiarch/strspn-c.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* strspn with SSE4.2 intrinsics
-   Copyright (C) 2009-2022 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <nmmintrin.h>
-#include <string.h>
-#include "varshift.h"
-
-/* We use 0x12:
-	_SIDD_SBYTE_OPS
-	| _SIDD_CMP_EQUAL_ANY
-	| _SIDD_NEGATIVE_POLARITY
-	| _SIDD_LEAST_SIGNIFICANT
-   on pcmpistri to compare xmm/mem128
-
-   0 1 2 3 4 5 6 7 8 9 A B C D E F
-   X X X X X X X X X X X X X X X X
-
-   against xmm
-
-   0 1 2 3 4 5 6 7 8 9 A B C D E F
-   A A A A A A A A A A A A A A A A
-
-   to find out if the first 16byte data element has any non-A byte and
-   the offset of the first byte.  There are 2 cases:
-
-   1. The first 16byte data element has the non-A byte, including
-      EOS, at the offset X.
-   2. The first 16byte data element is valid and doesn't have the non-A
-      byte.
-
-   Here is the table of ECX, CFlag, ZFlag and SFlag for 2 cases:
-
-   case		ECX	CFlag	ZFlag	SFlag
-    1		 X	  1	 0/1	  0
-    2		16	  0	  0	  0
-
-   We exit from the loop for case 1.  */
-
-extern size_t __strspn_sse2 (const char *, const char *) attribute_hidden;
-
-
-size_t
-__attribute__ ((section (".text.sse4.2")))
-__strspn_sse42 (const char *s, const char *a)
-{
-  if (*a == 0)
-    return 0;
-
-  const char *aligned;
-  __m128i mask, maskz, zero;
-  unsigned int maskz_bits;
-  unsigned int offset = (int) ((size_t) a & 15);
-  zero = _mm_set1_epi8 (0);
-  if (offset != 0)
-    {
-      /* Load masks.  */
-      aligned = (const char *) ((size_t) a & -16L);
-      __m128i mask0 = _mm_load_si128 ((__m128i *) aligned);
-      maskz = _mm_cmpeq_epi8 (mask0, zero);
-
-      /* Find where the NULL terminator is.  */
-      maskz_bits = _mm_movemask_epi8 (maskz) >> offset;
-      if (maskz_bits != 0)
-        {
-          mask = __m128i_shift_right (mask0, offset);
-          offset = (unsigned int) ((size_t) s & 15);
-          if (offset)
-            goto start_unaligned;
-
-          aligned = s;
-          goto start_loop;
-        }
-    }
-
-  /* A is aligned.  */
-  mask = _mm_loadu_si128 ((__m128i *) a);
-
-  /* Find where the NULL terminator is.  */
-  maskz = _mm_cmpeq_epi8 (mask, zero);
-  maskz_bits = _mm_movemask_epi8 (maskz);
-  if (maskz_bits == 0)
-    {
-      /* There is no NULL terminator.  Don't use SSE4.2 if the length
-         of A > 16.  */
-      if (a[16] != 0)
-        return __strspn_sse2 (s, a);
-    }
-  aligned = s;
-  offset = (unsigned int) ((size_t) s & 15);
-
-  if (offset != 0)
-    {
-    start_unaligned:
-      /* Check partial string.  */
-      aligned = (const char *) ((size_t) s & -16L);
-      __m128i value = _mm_load_si128 ((__m128i *) aligned);
-      __m128i adj_value = __m128i_shift_right (value, offset);
-
-      unsigned int length = _mm_cmpistri (mask, adj_value, 0x12);
-      /* No need to check CFlag since it is always 1.  */
-      if (length < 16 - offset)
-	return length;
-      /* Find where the NULL terminator is.  */
-      maskz = _mm_cmpeq_epi8 (value, zero);
-      maskz_bits = _mm_movemask_epi8 (maskz) >> offset;
-      if (maskz_bits != 0)
-	return length;
-      aligned += 16;
-    }
-
-start_loop:
-  while (1)
-    {
-      __m128i value = _mm_load_si128 ((__m128i *) aligned);
-      unsigned int index = _mm_cmpistri (mask, value, 0x12);
-      unsigned int cflag = _mm_cmpistrc (mask, value, 0x12);
-      if (cflag)
-	return (size_t) (aligned + index - s);
-      aligned += 16;
-    }
-}