mount_image.c: add fallback definitions of RENAME_* constants

[wimlib] / include / wimlib / lz_extend.h

diff --git a/include/wimlib/lz_extend.h b/include/wimlib/lz_extend.h
deleted file mode 100644 (file)
index e9a5622..0000000
--- a/include/wimlib/lz_extend.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * lz_extend.h
- *
- * Fast match extension for Lempel-Ziv matchfinding.
- *
- * The author dedicates this file to the public domain.
- * You can do whatever you want with this file.
- */
-
-#ifndef _WIMLIB_LZ_EXTEND_H
-#define _WIMLIB_LZ_EXTEND_H
-
-#include "wimlib/bitops.h"
-#include "wimlib/unaligned.h"
-
-/* Return the number of bytes at @matchptr that match the bytes at @strptr, up
- * to a maximum of @max_len.  Initially, @start_len bytes are matched.  */
-static inline u32
-lz_extend(const u8 * const strptr, const u8 * const matchptr,
-         const u32 start_len, const u32 max_len)
-{
-       u32 len = start_len;
-
-       if (UNALIGNED_ACCESS_IS_FAST) {
-
-               machine_word_t v_word;
-
-               if (likely(max_len - len >= 4 * WORDSIZE)) {
-
-               #define COMPARE_WORD_STEP                                       \
-                       v_word = load_word_unaligned(&matchptr[len]) ^          \
-                                load_word_unaligned(&strptr[len]);             \
-                       if (v_word != 0)                                        \
-                               goto word_differs;                              \
-                       len += WORDSIZE;                                        \
-
-                       COMPARE_WORD_STEP
-                       COMPARE_WORD_STEP
-                       COMPARE_WORD_STEP
-                       COMPARE_WORD_STEP
-               #undef COMPARE_WORD_STEP
-               }
-
-               while (len + WORDSIZE <= max_len) {
-                       v_word = load_word_unaligned(&matchptr[len]) ^
-                                load_word_unaligned(&strptr[len]);
-                       if (v_word != 0)
-                               goto word_differs;
-                       len += WORDSIZE;
-               }
-
-               while (len < max_len && matchptr[len] == strptr[len])
-                       len++;
-               return len;
-
-       word_differs:
-               return len + (ffsw(v_word) >> 3);
-       } else {
-               while (len < max_len && matchptr[len] == strptr[len])
-                       len++;
-               return len;
-       }
-}
-
-#endif /* _WIMLIB_LZ_EXTEND_H */