1 files changed, 0 insertions, 115 deletions
diff --git a/libc/arch-mips/string/strlen.c b/libc/arch-mips/string/strlen.c
deleted file mode 100644
index 28463f694..000000000
--- a/libc/arch-mips/string/strlen.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (c) 2017 Imagination Technologies.
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *      * Redistributions of source code must retain the above copyright
- *        notice, this list of conditions and the following disclaimer.
- *      * Redistributions in binary form must reproduce the above copyright
- *        notice, this list of conditions and the following disclaimer
- *        in the documentation and/or other materials provided with
- *        the distribution.
- *      * Neither the name of Imagination Technologies nor the names of its
- *        contributors may be used to endorse or promote products derived
- *        from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <string.h>
-
-#define op_t        unsigned long int
-#define op_size     sizeof (op_t)
-
-#if __mips64 || __mips_isa_rev >= 2
-static inline size_t __attribute__ ((always_inline))
-do_bytes (const char *base, const char *p, op_t inval)
-{
-  op_t outval = 0;
-#if __mips64
-  __asm__ volatile (
-    "dsbh %1, %0 \n\t"
-    "dshd %0, %1 \n\t"
-    "dclz %1, %0 \n\t"
-    : "+r" (inval), "+r" (outval)
-  );
-#else
-  __asm__ volatile (
-    "wsbh %1, %0 \n\t"
-    "rotr %0, %1, 16 \n\t"
-    "clz %1, %0 \n\t"
-    : "+r" (inval), "+r" (outval)
-  );
-#endif
-  p += (outval >> 3);
-  return (size_t) (p - base);
-}
-
-#define DO_WORD(w, cnt) {                                \
-  op_t val = ((w[cnt] - mask_1) & ~w[cnt]) & mask_128;   \
-  if (val)                                               \
-    return do_bytes(str, (const char *)(w + cnt), val);  \
-}
-#else
-static inline size_t __attribute__ ((always_inline))
-do_bytes (const char *base, const char *p)
-{
-  for (; *p; ++p);
-  return (size_t) (p - base);
-}
-
-#define DO_WORD(w, cnt) {                           \
-  if (((w[cnt] - mask_1) & ~w[cnt]) & mask_128)     \
-    return do_bytes(str, (const char *)(w + cnt));  \
-}
-#endif
-
-size_t
-strlen (const char *str)
-{
-  if (*str) {
-    const char *p = (const char *) str;
-    const op_t *w;
-    op_t mask_1, mask_128;
-
-    while ((size_t) p % sizeof (op_t)) {
-      if (!(*p))
-        return (p - str);
-      p++;
-    }
-
-    __asm__ volatile (
-      "li %0, 0x01010101 \n\t"
-      : "=r" (mask_1)
-    );
-#if __mips64
-    mask_1 |= mask_1 << 32;
-#endif
-    mask_128 = mask_1 << 7;
-
-    w = (const op_t *) p;
-
-    while (1) {
-      DO_WORD(w, 0);
-      DO_WORD(w, 1);
-      DO_WORD(w, 2);
-      DO_WORD(w, 3);
-      w += 4;
-    }
-  }
-  return 0;
-}