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bf05e882b8
- Remove obsolete checks - Fix checks that are inconsistent - Stop compiling compare256/longest_match variants that never gets called - Improve how the generic compare256 functions are handled. - Allow overriding OPTIMAL_CMP This simplifies the code and avoids having a lot of code in the compiled library than can never get executed.
32 lines
899 B
C
32 lines
899 B
C
/* compare256.c -- 256 byte memory comparison with match length return
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* Copyright (C) 2020 Nathan Moinvaziri
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#include "zbuild.h"
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#include "compare256_p.h"
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// Set optimal COMPARE256 function variant
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#if OPTIMAL_CMP == 8
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# define COMPARE256 compare256_8
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#elif defined(HAVE_BUILTIN_CTZLL)
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# define COMPARE256 compare256_64
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#elif defined(HAVE_BUILTIN_CTZ)
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# define COMPARE256 compare256_32
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#else
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# define COMPARE256 compare256_16
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#endif
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Z_INTERNAL uint32_t compare256_c(const uint8_t *src0, const uint8_t *src1) {
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return COMPARE256(src0, src1);
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}
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// Generate longest_match_c
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#define LONGEST_MATCH longest_match_c
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#include "match_tpl.h"
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// Generate longest_match_slow_c
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#define LONGEST_MATCH_SLOW
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#define LONGEST_MATCH longest_match_slow_c
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#include "match_tpl.h"
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