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liblzma: Add more uses of lzma_memcmplen() to the normal mode of LZMA.
This gives a tiny encoder speed improvement. This could have been done
in 2014 after the commit 544aaa3d13
but
it was forgotten.
This commit is contained in:
parent
59e6eb4840
commit
43dfe04e62
1 changed files with 10 additions and 6 deletions
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@ -636,9 +636,10 @@ helper2(lzma_lzma1_encoder *coder, uint32_t *reps, const uint8_t *buf,
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uint32_t len_test_2 = len_test + 1;
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const uint32_t limit = my_min(buf_avail_full,
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len_test_2 + nice_len);
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for (; len_test_2 < limit
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&& buf[len_test_2] == buf_back[len_test_2];
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++len_test_2) ;
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// NOTE: len_test_2 may be greater than limit so the call to
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// lzma_memcmplen() must be done conditionally.
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if (len_test_2 < limit)
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len_test_2 = lzma_memcmplen(buf, buf_back, len_test_2, limit);
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len_test_2 -= len_test + 1;
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@ -732,9 +733,12 @@ helper2(lzma_lzma1_encoder *coder, uint32_t *reps, const uint8_t *buf,
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const uint32_t limit = my_min(buf_avail_full,
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len_test_2 + nice_len);
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for (; len_test_2 < limit &&
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buf[len_test_2] == buf_back[len_test_2];
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++len_test_2) ;
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// NOTE: len_test_2 may be greater than limit
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// so the call to lzma_memcmplen() must be
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// done conditionally.
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if (len_test_2 < limit)
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len_test_2 = lzma_memcmplen(buf, buf_back,
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len_test_2, limit);
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len_test_2 -= len_test + 1;
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