diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/s2/encode_amd64.go')
| -rw-r--r-- | vendor/github.com/klauspost/compress/s2/encode_amd64.go | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/vendor/github.com/klauspost/compress/s2/encode_amd64.go b/vendor/github.com/klauspost/compress/s2/encode_amd64.go deleted file mode 100644 index e612225f4..000000000 --- a/vendor/github.com/klauspost/compress/s2/encode_amd64.go +++ /dev/null @@ -1,142 +0,0 @@ -//go:build !appengine && !noasm && gc -// +build !appengine,!noasm,gc - -package s2 - -// encodeBlock encodes a non-empty src to a guaranteed-large-enough dst. It -// assumes that the varint-encoded length of the decompressed bytes has already -// been written. -// -// It also assumes that: -// len(dst) >= MaxEncodedLen(len(src)) && -// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize -func encodeBlock(dst, src []byte) (d int) { - const ( - // Use 12 bit table when less than... - limit12B = 16 << 10 - // Use 10 bit table when less than... - limit10B = 4 << 10 - // Use 8 bit table when less than... - limit8B = 512 - ) - - if len(src) >= 4<<20 { - return encodeBlockAsm(dst, src) - } - if len(src) >= limit12B { - return encodeBlockAsm4MB(dst, src) - } - if len(src) >= limit10B { - return encodeBlockAsm12B(dst, src) - } - if len(src) >= limit8B { - return encodeBlockAsm10B(dst, src) - } - if len(src) < minNonLiteralBlockSize { - return 0 - } - return encodeBlockAsm8B(dst, src) -} - -// encodeBlockBetter encodes a non-empty src to a guaranteed-large-enough dst. It -// assumes that the varint-encoded length of the decompressed bytes has already -// been written. -// -// It also assumes that: -// len(dst) >= MaxEncodedLen(len(src)) && -// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize -func encodeBlockBetter(dst, src []byte) (d int) { - const ( - // Use 12 bit table when less than... - limit12B = 16 << 10 - // Use 10 bit table when less than... - limit10B = 4 << 10 - // Use 8 bit table when less than... - limit8B = 512 - ) - - if len(src) > 4<<20 { - return encodeBetterBlockAsm(dst, src) - } - if len(src) >= limit12B { - return encodeBetterBlockAsm4MB(dst, src) - } - if len(src) >= limit10B { - return encodeBetterBlockAsm12B(dst, src) - } - if len(src) >= limit8B { - return encodeBetterBlockAsm10B(dst, src) - } - if len(src) < minNonLiteralBlockSize { - return 0 - } - return encodeBetterBlockAsm8B(dst, src) -} - -// encodeBlockSnappy encodes a non-empty src to a guaranteed-large-enough dst. It -// assumes that the varint-encoded length of the decompressed bytes has already -// been written. -// -// It also assumes that: -// len(dst) >= MaxEncodedLen(len(src)) && -// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize -func encodeBlockSnappy(dst, src []byte) (d int) { - const ( - // Use 12 bit table when less than... - limit12B = 16 << 10 - // Use 10 bit table when less than... - limit10B = 4 << 10 - // Use 8 bit table when less than... - limit8B = 512 - ) - if len(src) >= 64<<10 { - return encodeSnappyBlockAsm(dst, src) - } - if len(src) >= limit12B { - return encodeSnappyBlockAsm64K(dst, src) - } - if len(src) >= limit10B { - return encodeSnappyBlockAsm12B(dst, src) - } - if len(src) >= limit8B { - return encodeSnappyBlockAsm10B(dst, src) - } - if len(src) < minNonLiteralBlockSize { - return 0 - } - return encodeSnappyBlockAsm8B(dst, src) -} - -// encodeBlockSnappy encodes a non-empty src to a guaranteed-large-enough dst. It -// assumes that the varint-encoded length of the decompressed bytes has already -// been written. -// -// It also assumes that: -// len(dst) >= MaxEncodedLen(len(src)) && -// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize -func encodeBlockBetterSnappy(dst, src []byte) (d int) { - const ( - // Use 12 bit table when less than... - limit12B = 16 << 10 - // Use 10 bit table when less than... - limit10B = 4 << 10 - // Use 8 bit table when less than... - limit8B = 512 - ) - if len(src) >= 64<<10 { - return encodeSnappyBetterBlockAsm(dst, src) - } - if len(src) >= limit12B { - return encodeSnappyBetterBlockAsm64K(dst, src) - } - if len(src) >= limit10B { - return encodeSnappyBetterBlockAsm12B(dst, src) - } - if len(src) >= limit8B { - return encodeSnappyBetterBlockAsm10B(dst, src) - } - if len(src) < minNonLiteralBlockSize { - return 0 - } - return encodeSnappyBetterBlockAsm8B(dst, src) -} |