Package org.apache.lucene.codecs.lucene84

Class ForUtil

java.lang.Object

org.apache.lucene.codecs.lucene84.ForUtil

final class ForUtil
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static int	BLOCK_SIZE
private static int	BLOCK_SIZE_LOG2
private static long	MASK16_1
private static long	MASK16_10
private static long	MASK16_11
private static long	MASK16_12
private static long	MASK16_13
private static long	MASK16_14
private static long	MASK16_15
private static long	MASK16_2
private static long	MASK16_3
private static long	MASK16_4
private static long	MASK16_5
private static long	MASK16_6
private static long	MASK16_7
private static long	MASK16_9
private static long	MASK32_1
private static long	MASK32_10
private static long	MASK32_11
private static long	MASK32_12
private static long	MASK32_13
private static long	MASK32_14
private static long	MASK32_15
private static long	MASK32_17
private static long	MASK32_18
private static long	MASK32_19
private static long	MASK32_2
private static long	MASK32_20
private static long	MASK32_21
private static long	MASK32_22
private static long	MASK32_23
private static long	MASK32_24
private static long	MASK32_3
private static long	MASK32_4
private static long	MASK32_5
private static long	MASK32_6
private static long	MASK32_7
private static long	MASK32_8
private static long	MASK32_9
private static long	MASK8_1
private static long	MASK8_2
private static long	MASK8_3
private static long	MASK8_4
private static long	MASK8_5
private static long	MASK8_6
private static long	MASK8_7
private static long[]	MASKS16
private static long[]	MASKS32
private static long[]	MASKS8
private long[]	tmp

Constructor Summary

Constructors

Constructor	Description
ForUtil()

Method Summary

Modifier and Type	Method	Description
private static void	collapse16(long[] arr)
private static void	collapse32(long[] arr)
private static void	collapse8(long[] arr)
(package private) void	decode(int bitsPerValue, DataInput in, long[] longs)	Decode 128 integers into longs.
private static void	decode1(DataInput in, long[] tmp, long[] longs)
private static void	decode10(DataInput in, long[] tmp, long[] longs)
private static void	decode11(DataInput in, long[] tmp, long[] longs)
private static void	decode12(DataInput in, long[] tmp, long[] longs)
private static void	decode13(DataInput in, long[] tmp, long[] longs)
private static void	decode14(DataInput in, long[] tmp, long[] longs)
private static void	decode15(DataInput in, long[] tmp, long[] longs)
private static void	decode16(DataInput in, long[] tmp, long[] longs)
private static void	decode17(DataInput in, long[] tmp, long[] longs)
private static void	decode18(DataInput in, long[] tmp, long[] longs)
private static void	decode19(DataInput in, long[] tmp, long[] longs)
private static void	decode2(DataInput in, long[] tmp, long[] longs)
private static void	decode20(DataInput in, long[] tmp, long[] longs)
private static void	decode21(DataInput in, long[] tmp, long[] longs)
private static void	decode22(DataInput in, long[] tmp, long[] longs)
private static void	decode23(DataInput in, long[] tmp, long[] longs)
private static void	decode24(DataInput in, long[] tmp, long[] longs)
private static void	decode3(DataInput in, long[] tmp, long[] longs)
private static void	decode4(DataInput in, long[] tmp, long[] longs)
private static void	decode5(DataInput in, long[] tmp, long[] longs)
private static void	decode6(DataInput in, long[] tmp, long[] longs)
private static void	decode7(DataInput in, long[] tmp, long[] longs)
private static void	decode8(DataInput in, long[] tmp, long[] longs)
private static void	decode9(DataInput in, long[] tmp, long[] longs)
(package private) void	decodeAndPrefixSum(int bitsPerValue, DataInput in, long base, long[] longs)	Delta-decode 128 integers into longs.
private static void	decodeSlow(int bitsPerValue, DataInput in, long[] tmp, long[] longs)
(package private) void	encode(long[] longs, int bitsPerValue, DataOutput out)	Encode 128 integers from longs into out.
private static void	expand16(long[] arr)
private static void	expand16To32(long[] arr)
private static void	expand32(long[] arr)
private static void	expand8(long[] arr)
private static void	expand8To32(long[] arr)
private static long	expandMask16(long mask16)
private static long	expandMask32(long mask32)
private static long	expandMask8(long mask8)
private static void	innerPrefixSum32(long[] arr)
private static long	mask16(int bitsPerValue)
private static long	mask32(int bitsPerValue)
private static long	mask8(int bitsPerValue)
(package private) int	numBytes(int bitsPerValue)	Number of bytes required to encode 128 integers of bitsPerValue bits per value.
private static void	prefixSum16(long[] arr, long base)
private static void	prefixSum32(long[] arr, long base)
private static void	prefixSum8(long[] arr, long base)
private static void	shiftLongs(long[] a, int count, long[] b, int bi, int shift, long mask)	The pattern that this shiftLongs method applies is recognized by the C2 compiler, which generates SIMD instructions for it in order to shift multiple longs at once.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BLOCK_SIZE

static final int BLOCK_SIZE

See Also:

Constant Field Values

BLOCK_SIZE_LOG2

private static final int BLOCK_SIZE_LOG2

See Also:

Constant Field Values

tmp

private final long[] tmp

MASKS8

private static final long[] MASKS8

MASKS16

private static final long[] MASKS16

MASKS32

private static final long[] MASKS32

MASK8_1

private static final long MASK8_1

MASK8_2

private static final long MASK8_2

MASK8_3

private static final long MASK8_3

MASK8_4

private static final long MASK8_4

MASK8_5

private static final long MASK8_5

MASK8_6

private static final long MASK8_6

MASK8_7

private static final long MASK8_7

MASK16_1

private static final long MASK16_1

MASK16_2

private static final long MASK16_2

MASK16_3

private static final long MASK16_3

MASK16_4

private static final long MASK16_4

MASK16_5

private static final long MASK16_5

MASK16_6

private static final long MASK16_6

MASK16_7

private static final long MASK16_7

MASK16_9

private static final long MASK16_9

MASK16_10

private static final long MASK16_10

MASK16_11

private static final long MASK16_11

MASK16_12

private static final long MASK16_12

MASK16_13

private static final long MASK16_13

MASK16_14

private static final long MASK16_14

MASK16_15

private static final long MASK16_15

MASK32_1

private static final long MASK32_1

MASK32_2

private static final long MASK32_2

MASK32_3

private static final long MASK32_3

MASK32_4

private static final long MASK32_4

MASK32_5

private static final long MASK32_5

MASK32_6

private static final long MASK32_6

MASK32_7

private static final long MASK32_7

MASK32_8

private static final long MASK32_8

MASK32_9

private static final long MASK32_9

MASK32_10

private static final long MASK32_10

MASK32_11

private static final long MASK32_11

MASK32_12

private static final long MASK32_12

MASK32_13

private static final long MASK32_13

MASK32_14

private static final long MASK32_14

MASK32_15

private static final long MASK32_15

MASK32_17

private static final long MASK32_17

MASK32_18

private static final long MASK32_18

MASK32_19

private static final long MASK32_19

MASK32_20

private static final long MASK32_20

MASK32_21

private static final long MASK32_21

MASK32_22

private static final long MASK32_22

MASK32_23

private static final long MASK32_23

MASK32_24

private static final long MASK32_24

Constructor Detail

ForUtil

ForUtil()

Method Detail

expandMask32

private static long expandMask32(long mask32)

expandMask16

private static long expandMask16(long mask16)

expandMask8

private static long expandMask8(long mask8)

mask32

private static long mask32(int bitsPerValue)

mask16

private static long mask16(int bitsPerValue)

mask8

private static long mask8(int bitsPerValue)

expand8

private static void expand8(long[] arr)

expand8To32

private static void expand8To32(long[] arr)

collapse8

private static void collapse8(long[] arr)

expand16

private static void expand16(long[] arr)

expand16To32

private static void expand16To32(long[] arr)

collapse16

private static void collapse16(long[] arr)

expand32

private static void expand32(long[] arr)

collapse32

private static void collapse32(long[] arr)

prefixSum8

private static void prefixSum8(long[] arr,
                               long base)

prefixSum16

private static void prefixSum16(long[] arr,
                                long base)

prefixSum32

private static void prefixSum32(long[] arr,
                                long base)

innerPrefixSum32

private static void innerPrefixSum32(long[] arr)

encode

void encode(long[] longs,
            int bitsPerValue,
            DataOutput out)
     throws java.io.IOException

Encode 128 integers from longs into out.

Throws:

java.io.IOException

numBytes

int numBytes(int bitsPerValue)
      throws java.io.IOException

Number of bytes required to encode 128 integers of bitsPerValue bits per value.

Throws:

java.io.IOException

decodeSlow

private static void decodeSlow(int bitsPerValue,
                               DataInput in,
                               long[] tmp,
                               long[] longs)
                        throws java.io.IOException

Throws:

java.io.IOException

shiftLongs

private static void shiftLongs(long[] a,
                               int count,
                               long[] b,
                               int bi,
                               int shift,
                               long mask)

The pattern that this shiftLongs method applies is recognized by the C2 compiler, which generates SIMD instructions for it in order to shift multiple longs at once.

decode

void decode(int bitsPerValue,
            DataInput in,
            long[] longs)
     throws java.io.IOException

Decode 128 integers into longs.

Throws:

java.io.IOException

decodeAndPrefixSum

void decodeAndPrefixSum(int bitsPerValue,
                        DataInput in,
                        long base,
                        long[] longs)
                 throws java.io.IOException

Delta-decode 128 integers into longs.

Throws:

java.io.IOException

decode1

private static void decode1(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode2

private static void decode2(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode3

private static void decode3(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode4

private static void decode4(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode5

private static void decode5(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode6

private static void decode6(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode7

private static void decode7(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode8

private static void decode8(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode9

private static void decode9(DataInput in,
                            long[] tmp,
                            long[] longs)
                     throws java.io.IOException

Throws:

java.io.IOException

decode10

private static void decode10(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode11

private static void decode11(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode12

private static void decode12(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode13

private static void decode13(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode14

private static void decode14(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode15

private static void decode15(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode16

private static void decode16(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode17

private static void decode17(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode18

private static void decode18(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode19

private static void decode19(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode20

private static void decode20(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode21

private static void decode21(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode22

private static void decode22(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode23

private static void decode23(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException

decode24

private static void decode24(DataInput in,
                             long[] tmp,
                             long[] longs)
                      throws java.io.IOException

Throws:

java.io.IOException