1 files changed, 0 insertions, 68 deletions
diff --git a/c/enc/matching_tag_mask.h b/c/enc/matching_tag_mask.h
deleted file mode 100644
index c166255..0000000
--- a/c/enc/matching_tag_mask.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#ifndef THIRD_PARTY_BROTLI_ENC_MATCHING_TAG_MASK_H_
-#define THIRD_PARTY_BROTLI_ENC_MATCHING_TAG_MASK_H_
-
-#include "../common/platform.h"
-
-#if defined(__SSE2__) || defined(_M_AMD64) || (defined (_M_IX86) && defined(_M_IX86_FP) && (_M_IX86_FP >= 2))
-#define SUPPORTS_SSE_2
-#endif
-
-#if defined(SUPPORTS_SSE_2)
-#include <immintrin.h>
-#endif
-
-
-static BROTLI_INLINE uint64_t GetMatchingTagMask(
-    size_t chunk_count, const uint8_t tag,
-    const uint8_t* BROTLI_RESTRICT tag_bucket, const size_t head) {
-  uint64_t matches = 0;
-#if defined(SUPPORTS_SSE_2)
-  const __m128i comparison_mask = _mm_set1_epi8((char)tag);
-  size_t i;
-  for (i = 0; i < chunk_count && i < 4; i++) {
-    const __m128i chunk =
-        _mm_loadu_si128((const __m128i*)(const void*)(tag_bucket + 16 * i));
-    const __m128i equal_mask = _mm_cmpeq_epi8(chunk, comparison_mask);
-    matches |= (uint64_t)_mm_movemask_epi8(equal_mask) << 16 * i;
-  }
-#else
-  const int chunk_size = sizeof(size_t);
-  const size_t shift_amount = ((chunk_size * 8) - chunk_size);
-  const size_t xFF = ~((size_t)0);
-  const size_t x01 = xFF / 0xFF;
-  const size_t x80 = x01 << 7;
-  const size_t splat_char = tag * x01;
-  int i = ((int)chunk_count * 16) - chunk_size;
-  BROTLI_DCHECK((sizeof(size_t) == 4) || (sizeof(size_t) == 8));
-#if BROTLI_LITTLE_ENDIAN
-  const size_t extractMagic = (xFF / 0x7F) >> chunk_size;
-  do {
-      size_t chunk = BrotliUnalignedReadSizeT(&tag_bucket[i]);
-      chunk ^= splat_char;
-      chunk = (((chunk | x80) - x01) | chunk) & x80;
-      matches <<= chunk_size;
-      matches |= (chunk * extractMagic) >> shift_amount;
-      i -= chunk_size;
-  } while (i >= 0);
-#else
-  const size_t msb = xFF ^ (xFF >> 1);
-  const size_t extractMagic = (msb / 0x1FF) | msb;
-  do {
-      size_t chunk = BrotliUnalignedReadSizeT(&tag_bucket[i]);
-      chunk ^= splat_char;
-      chunk = (((chunk | x80) - x01) | chunk) & x80;
-      matches <<= chunk_size;
-      matches |= ((chunk >> 7) * extractMagic) >> shift_amount;
-      i -= chunk_size;
-  } while (i >= 0);
-#endif
-  matches = ~matches;
-#endif
-  if (chunk_count == 1) return BrotliRotateRight16((uint16_t)matches, head);
-  if (chunk_count == 2) return BrotliRotateRight32((uint32_t)matches, head);
-  return BrotliRotateRight64(matches, head);
-}
-
-#undef SUPPORTS_SSE_2
-
-#endif  // THIRD_PARTY_BROTLI_ENC_MATCHING_TAG_MASK_H_