-
CRC32C
-
CRC32C_POLY: int
-
REVERSED_CRC32C_POLY: int
-
UNSAFE: Unsafe
-
byteTable: int[]
-
byteTables: int[][]
-
byteTable0: int[]
-
byteTable1: int[]
-
byteTable2: int[]
-
byteTable3: int[]
-
byteTable4: int[]
-
byteTable5: int[]
-
byteTable6: int[]
-
byteTable7: int[]
-
crc: int
-
$assertionsDisabled: boolean
-
<clinit>(): void
-
<init>(): void
-
update(int): void
-
update(byte[], int, int): void
-
update(ByteBuffer): void
-
reset(): void
-
getValue(): long
-
updateBytes(int, byte[], int, int): int
-
updateDirectByteBuffer(int, long, int, int): int
-
public final class java.util.zip.CRC32C implements java.util.zip.Checksum
minor version: 0
major version: 59
flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
this_class: java.util.zip.CRC32C
super_class: java.lang.Object
{
private static final int CRC32C_POLY;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 517762881
private static final int REVERSED_CRC32C_POLY;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final jdk.internal.misc.Unsafe UNSAFE;
descriptor: Ljdk/internal/misc/Unsafe;
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[][] byteTables;
descriptor: [[I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable0;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable1;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable2;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable3;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable4;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable5;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable6;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final int[] byteTable7;
descriptor: [I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private int crc;
descriptor: I
flags: (0x0002) ACC_PRIVATE
static final boolean $assertionsDisabled;
descriptor: Z
flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC
static void <clinit>();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=5, locals=5, args_size=0
0: .line 49
ldc Ljava/util/zip/CRC32C;
invokevirtual java.lang.Class.desiredAssertionStatus:()Z
ifne 1
iconst_1
goto 2
StackMap locals:
StackMap stack:
1: iconst_0
StackMap locals:
StackMap stack: int
2: putstatic java.util.zip.CRC32C.$assertionsDisabled:Z
3: .line 62
ldc 517762881
invokestatic java.lang.Integer.reverse:(I)I
putstatic java.util.zip.CRC32C.REVERSED_CRC32C_POLY:I
4: .line 64
invokestatic jdk.internal.misc.Unsafe.getUnsafe:()Ljdk/internal/misc/Unsafe;
putstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
5: .line 70
bipush 8
sipush 256
multianewarray [[I 2
putstatic java.util.zip.CRC32C.byteTables:[[I
6: .line 71
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
putstatic java.util.zip.CRC32C.byteTable0:[I
7: .line 72
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_1
aaload
putstatic java.util.zip.CRC32C.byteTable1:[I
8: .line 73
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_2
aaload
putstatic java.util.zip.CRC32C.byteTable2:[I
9: .line 74
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_3
aaload
putstatic java.util.zip.CRC32C.byteTable3:[I
10: .line 75
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_4
aaload
putstatic java.util.zip.CRC32C.byteTable4:[I
11: .line 76
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_5
aaload
putstatic java.util.zip.CRC32C.byteTable5:[I
12: .line 77
getstatic java.util.zip.CRC32C.byteTables:[[I
bipush 6
aaload
putstatic java.util.zip.CRC32C.byteTable6:[I
13: .line 78
getstatic java.util.zip.CRC32C.byteTables:[[I
bipush 7
aaload
putstatic java.util.zip.CRC32C.byteTable7:[I
14: .line 83
iconst_0
istore 0 /* index */
start local 0 // int index
15: goto 27
16: .line 84
StackMap locals: int
StackMap stack:
iload 0 /* index */
istore 1 /* r */
start local 1 // int r
17: .line 85
iconst_0
istore 2 /* i */
start local 2 // int i
18: goto 24
19: .line 86
StackMap locals: int int
StackMap stack:
iload 1 /* r */
iconst_1
iand
ifeq 22
20: .line 87
iload 1 /* r */
iconst_1
iushr
getstatic java.util.zip.CRC32C.REVERSED_CRC32C_POLY:I
ixor
istore 1 /* r */
21: .line 88
goto 23
22: .line 89
StackMap locals:
StackMap stack:
iload 1 /* r */
iconst_1
iushr
istore 1 /* r */
23: .line 85
StackMap locals:
StackMap stack:
iinc 2 /* i */ 1
StackMap locals:
StackMap stack:
24: iload 2 /* i */
bipush 8
if_icmplt 19
end local 2 // int i
25: .line 92
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
iload 0 /* index */
iload 1 /* r */
iastore
end local 1 // int r
26: .line 83
iinc 0 /* index */ 1
StackMap locals:
StackMap stack:
27: iload 0 /* index */
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
arraylength
if_icmplt 16
end local 0 // int index
28: .line 95
iconst_0
istore 0 /* index */
start local 0 // int index
29: goto 38
30: .line 96
StackMap locals:
StackMap stack:
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
iload 0 /* index */
iaload
istore 1 /* r */
start local 1 // int r
31: .line 98
iconst_1
istore 2 /* k */
start local 2 // int k
32: goto 36
33: .line 99
StackMap locals: int int
StackMap stack:
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
iload 1 /* r */
sipush 255
iand
iaload
iload 1 /* r */
bipush 8
iushr
ixor
istore 1 /* r */
34: .line 100
getstatic java.util.zip.CRC32C.byteTables:[[I
iload 2 /* k */
aaload
iload 0 /* index */
iload 1 /* r */
iastore
35: .line 98
iinc 2 /* k */ 1
StackMap locals:
StackMap stack:
36: iload 2 /* k */
getstatic java.util.zip.CRC32C.byteTables:[[I
arraylength
if_icmplt 33
end local 2 // int k
end local 1 // int r
37: .line 95
iinc 0 /* index */ 1
StackMap locals:
StackMap stack:
38: iload 0 /* index */
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
arraylength
if_icmplt 30
end local 0 // int index
39: .line 104
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.LITTLE_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 42
40: .line 105
getstatic java.util.zip.CRC32C.byteTables:[[I
iconst_0
aaload
putstatic java.util.zip.CRC32C.byteTable:[I
41: .line 106
goto 53
42: .line 107
StackMap locals:
StackMap stack:
getstatic java.util.zip.CRC32C.byteTable0:[I
arraylength
newarray 10
putstatic java.util.zip.CRC32C.byteTable:[I
43: .line 108
getstatic java.util.zip.CRC32C.byteTable0:[I
iconst_0
getstatic java.util.zip.CRC32C.byteTable:[I
iconst_0
getstatic java.util.zip.CRC32C.byteTable0:[I
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
44: .line 109
getstatic java.util.zip.CRC32C.byteTables:[[I
dup
astore 3
arraylength
istore 2
iconst_0
istore 1
goto 52
StackMap locals: top int int int[][]
StackMap stack:
45: aload 3
iload 1
aaload
astore 0 /* table */
start local 0 // int[] table
46: .line 110
iconst_0
istore 4 /* index */
start local 4 // int index
47: goto 50
48: .line 111
StackMap locals: int[] int int int[][] int
StackMap stack:
aload 0 /* table */
iload 4 /* index */
aload 0 /* table */
iload 4 /* index */
iaload
invokestatic java.lang.Integer.reverseBytes:(I)I
iastore
49: .line 110
iinc 4 /* index */ 1
StackMap locals:
StackMap stack:
50: iload 4 /* index */
aload 0 /* table */
arraylength
if_icmplt 48
end local 4 // int index
end local 0 // int[] table
51: .line 109
iinc 1 1
StackMap locals: top int int int[][]
StackMap stack:
52: iload 1
iload 2
if_icmplt 45
53: .line 115
StackMap locals:
StackMap stack:
return
LocalVariableTable:
Start End Slot Name Signature
15 28 0 index I
17 26 1 r I
18 25 2 i I
29 39 0 index I
31 37 1 r I
32 37 2 k I
46 51 0 table [I
47 51 4 index I
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 // java.util.zip.CRC32C this
0: .line 125
aload 0 /* this */
invokespecial java.lang.Object.<init>:()V
1: .line 120
aload 0 /* this */
iconst_m1
putfield java.util.zip.CRC32C.crc:I
2: .line 126
return
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/util/zip/CRC32C;
public void update(int);
descriptor: (I)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=6, locals=2, args_size=2
start local 0 // java.util.zip.CRC32C this
start local 1 // int b
0: .line 134
aload 0 /* this */
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
bipush 8
iushr
getstatic java.util.zip.CRC32C.byteTable:[I
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
iload 1 /* b */
sipush 255
iand
ixor
sipush 255
iand
iaload
ixor
putfield java.util.zip.CRC32C.crc:I
1: .line 135
return
end local 1 // int b
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Ljava/util/zip/CRC32C;
0 2 1 b I
MethodParameters:
Name Flags
b
public void update(byte[], int, int);
descriptor: ([BII)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=6, locals=4, args_size=4
start local 0 // java.util.zip.CRC32C this
start local 1 // byte[] b
start local 2 // int off
start local 3 // int len
0: .line 147
aload 1 /* b */
ifnonnull 2
1: .line 148
new java.lang.NullPointerException
dup
invokespecial java.lang.NullPointerException.<init>:()V
athrow
2: .line 150
StackMap locals:
StackMap stack:
iload 2 /* off */
iflt 3
iload 3 /* len */
iflt 3
iload 2 /* off */
aload 1 /* b */
arraylength
iload 3 /* len */
isub
if_icmple 4
3: .line 151
StackMap locals:
StackMap stack:
new java.lang.ArrayIndexOutOfBoundsException
dup
invokespecial java.lang.ArrayIndexOutOfBoundsException.<init>:()V
athrow
4: .line 153
StackMap locals:
StackMap stack:
aload 0 /* this */
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
aload 1 /* b */
iload 2 /* off */
iload 2 /* off */
iload 3 /* len */
iadd
invokestatic java.util.zip.CRC32C.updateBytes:(I[BII)I
putfield java.util.zip.CRC32C.crc:I
5: .line 154
return
end local 3 // int len
end local 2 // int off
end local 1 // byte[] b
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 6 0 this Ljava/util/zip/CRC32C;
0 6 1 b [B
0 6 2 off I
0 6 3 len I
MethodParameters:
Name Flags
b
off
len
public void update(java.nio.ByteBuffer);
descriptor: (Ljava/nio/ByteBuffer;)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=6, locals=7, args_size=2
start local 0 // java.util.zip.CRC32C this
start local 1 // java.nio.ByteBuffer buffer
0: .line 165
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.position:()I
istore 2 /* pos */
start local 2 // int pos
1: .line 166
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.limit:()I
istore 3 /* limit */
start local 3 // int limit
2: .line 167
getstatic java.util.zip.CRC32C.$assertionsDisabled:Z
ifne 3
iload 2 /* pos */
iload 3 /* limit */
if_icmple 3
new java.lang.AssertionError
dup
invokespecial java.lang.AssertionError.<init>:()V
athrow
3: .line 168
StackMap locals: int int
StackMap stack:
iload 3 /* limit */
iload 2 /* pos */
isub
istore 4 /* rem */
start local 4 // int rem
4: .line 169
iload 4 /* rem */
ifgt 6
5: .line 170
return
6: .line 173
StackMap locals: int
StackMap stack:
aload 1 /* buffer */
instanceof sun.nio.ch.DirectBuffer
ifeq 11
7: .line 174
aload 0 /* this */
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
aload 1 /* buffer */
checkcast sun.nio.ch.DirectBuffer
invokeinterface sun.nio.ch.DirectBuffer.address:()J
8: .line 175
iload 2 /* pos */
iload 3 /* limit */
9: .line 174
invokestatic java.util.zip.CRC32C.updateDirectByteBuffer:(IJII)I
putfield java.util.zip.CRC32C.crc:I
10: .line 176
goto 22
StackMap locals:
StackMap stack:
11: aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.hasArray:()Z
ifeq 16
12: .line 177
aload 0 /* this */
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.array:()[B
iload 2 /* pos */
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.arrayOffset:()I
iadd
13: .line 178
iload 3 /* limit */
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.arrayOffset:()I
iadd
14: .line 177
invokestatic java.util.zip.CRC32C.updateBytes:(I[BII)I
putfield java.util.zip.CRC32C.crc:I
15: .line 179
goto 22
16: .line 180
StackMap locals:
StackMap stack:
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.remaining:()I
sipush 4096
invokestatic java.lang.Math.min:(II)I
newarray 8
astore 5 /* b */
start local 5 // byte[] b
17: .line 181
goto 21
18: .line 182
StackMap locals: byte[]
StackMap stack:
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.remaining:()I
aload 5 /* b */
arraylength
invokestatic java.lang.Math.min:(II)I
istore 6 /* length */
start local 6 // int length
19: .line 183
aload 1 /* buffer */
aload 5 /* b */
iconst_0
iload 6 /* length */
invokevirtual java.nio.ByteBuffer.get:([BII)Ljava/nio/ByteBuffer;
pop
20: .line 184
aload 0 /* this */
aload 5 /* b */
iconst_0
iload 6 /* length */
invokevirtual java.util.zip.CRC32C.update:([BII)V
end local 6 // int length
21: .line 181
StackMap locals:
StackMap stack:
aload 1 /* buffer */
invokevirtual java.nio.ByteBuffer.hasRemaining:()Z
ifne 18
end local 5 // byte[] b
22: .line 187
StackMap locals:
StackMap stack:
aload 1 /* buffer */
iload 3 /* limit */
invokevirtual java.nio.ByteBuffer.position:(I)Ljava/nio/ByteBuffer;
pop
23: .line 188
return
end local 4 // int rem
end local 3 // int limit
end local 2 // int pos
end local 1 // java.nio.ByteBuffer buffer
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 24 0 this Ljava/util/zip/CRC32C;
0 24 1 buffer Ljava/nio/ByteBuffer;
1 24 2 pos I
2 24 3 limit I
4 24 4 rem I
17 22 5 b [B
19 21 6 length I
MethodParameters:
Name Flags
buffer
public void reset();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 // java.util.zip.CRC32C this
0: .line 195
aload 0 /* this */
iconst_m1
putfield java.util.zip.CRC32C.crc:I
1: .line 196
return
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Ljava/util/zip/CRC32C;
public long getValue();
descriptor: ()J
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=1, args_size=1
start local 0 // java.util.zip.CRC32C this
0: .line 203
aload 0 /* this */
getfield java.util.zip.CRC32C.crc:I
iconst_m1
ixor
i2l
ldc 4294967295
land
lreturn
end local 0 // java.util.zip.CRC32C this
LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Ljava/util/zip/CRC32C;
private static int updateBytes(int, byte[], int, int);
descriptor: (I[BII)I
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=6, locals=9, args_size=4
start local 0 // int crc
start local 1 // byte[] b
start local 2 // int off
start local 3 // int end
0: .line 214
iload 3 /* end */
iload 2 /* off */
isub
bipush 8
if_icmplt 64
getstatic jdk.internal.misc.Unsafe.ARRAY_BYTE_INDEX_SCALE:I
iconst_1
if_icmpne 64
1: .line 218
bipush 8
getstatic jdk.internal.misc.Unsafe.ARRAY_BYTE_BASE_OFFSET:I
iload 2 /* off */
iadd
bipush 7
iand
isub
bipush 7
iand
2: .line 217
istore 4 /* alignLength */
start local 4 // int alignLength
3: .line 219
iload 2 /* off */
iload 4 /* alignLength */
iadd
istore 5 /* alignEnd */
start local 5 // int alignEnd
4: goto 7
5: .line 220
StackMap locals: int int
StackMap stack:
iload 0 /* crc */
bipush 8
iushr
getstatic java.util.zip.CRC32C.byteTable:[I
iload 0 /* crc */
aload 1 /* b */
iload 2 /* off */
baload
ixor
sipush 255
iand
iaload
ixor
istore 0 /* crc */
6: .line 219
iinc 2 /* off */ 1
StackMap locals:
StackMap stack:
7: iload 2 /* off */
iload 5 /* alignEnd */
if_icmplt 5
end local 5 // int alignEnd
8: .line 223
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 58
9: .line 224
iload 0 /* crc */
invokestatic java.lang.Integer.reverseBytes:(I)I
istore 0 /* crc */
10: .line 228
goto 58
11: .line 231
StackMap locals:
StackMap stack:
getstatic jdk.internal.misc.Unsafe.ADDRESS_SIZE:I
iconst_4
if_icmpne 17
12: .line 233
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
aload 1 /* b */
getstatic jdk.internal.misc.Unsafe.ARRAY_BYTE_BASE_OFFSET:I
i2l
iload 2 /* off */
i2l
ladd
invokevirtual jdk.internal.misc.Unsafe.getInt:(Ljava/lang/Object;J)I
istore 5 /* firstHalf */
start local 5 // int firstHalf
13: .line 234
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
aload 1 /* b */
getstatic jdk.internal.misc.Unsafe.ARRAY_BYTE_BASE_OFFSET:I
i2l
iload 2 /* off */
i2l
ladd
14: .line 235
ldc 4
ladd
15: .line 234
invokevirtual jdk.internal.misc.Unsafe.getInt:(Ljava/lang/Object;J)I
istore 6 /* secondHalf */
start local 6 // int secondHalf
16: .line 236
goto 24
end local 6 // int secondHalf
end local 5 // int firstHalf
17: .line 237
StackMap locals:
StackMap stack:
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
aload 1 /* b */
getstatic jdk.internal.misc.Unsafe.ARRAY_BYTE_BASE_OFFSET:I
i2l
iload 2 /* off */
i2l
ladd
invokevirtual jdk.internal.misc.Unsafe.getLong:(Ljava/lang/Object;J)J
lstore 7 /* value */
start local 7 // long value
18: .line 238
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.LITTLE_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 22
19: .line 239
lload 7 /* value */
l2i
istore 5 /* firstHalf */
start local 5 // int firstHalf
20: .line 240
lload 7 /* value */
bipush 32
lushr
l2i
istore 6 /* secondHalf */
start local 6 // int secondHalf
21: .line 241
goto 24
end local 6 // int secondHalf
end local 5 // int firstHalf
22: .line 242
StackMap locals: int byte[] int int int top top long
StackMap stack:
lload 7 /* value */
bipush 32
lushr
l2i
istore 5 /* firstHalf */
start local 5 // int firstHalf
23: .line 243
lload 7 /* value */
l2i
istore 6 /* secondHalf */
end local 7 // long value
start local 6 // int secondHalf
24: .line 246
StackMap locals: int byte[] int int int int int
StackMap stack:
iload 0 /* crc */
iload 5 /* firstHalf */
ixor
istore 0 /* crc */
25: .line 247
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.LITTLE_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 42
26: .line 248
getstatic java.util.zip.CRC32C.byteTable7:[I
iload 0 /* crc */
sipush 255
iand
iaload
27: .line 249
getstatic java.util.zip.CRC32C.byteTable6:[I
iload 0 /* crc */
bipush 8
iushr
sipush 255
iand
iaload
28: .line 248
ixor
29: .line 250
getstatic java.util.zip.CRC32C.byteTable5:[I
iload 0 /* crc */
bipush 16
iushr
sipush 255
iand
iaload
30: .line 248
ixor
31: .line 251
getstatic java.util.zip.CRC32C.byteTable4:[I
iload 0 /* crc */
bipush 24
iushr
iaload
32: .line 248
ixor
33: .line 252
getstatic java.util.zip.CRC32C.byteTable3:[I
iload 6 /* secondHalf */
sipush 255
iand
iaload
34: .line 248
ixor
35: .line 253
getstatic java.util.zip.CRC32C.byteTable2:[I
iload 6 /* secondHalf */
bipush 8
iushr
sipush 255
iand
iaload
36: .line 248
ixor
37: .line 254
getstatic java.util.zip.CRC32C.byteTable1:[I
iload 6 /* secondHalf */
bipush 16
iushr
sipush 255
iand
iaload
38: .line 248
ixor
39: .line 255
getstatic java.util.zip.CRC32C.byteTable0:[I
iload 6 /* secondHalf */
bipush 24
iushr
iaload
40: .line 248
ixor
istore 0 /* crc */
41: .line 256
goto 57
42: .line 257
StackMap locals:
StackMap stack:
getstatic java.util.zip.CRC32C.byteTable0:[I
iload 6 /* secondHalf */
sipush 255
iand
iaload
43: .line 258
getstatic java.util.zip.CRC32C.byteTable1:[I
iload 6 /* secondHalf */
bipush 8
iushr
sipush 255
iand
iaload
44: .line 257
ixor
45: .line 259
getstatic java.util.zip.CRC32C.byteTable2:[I
iload 6 /* secondHalf */
bipush 16
iushr
sipush 255
iand
iaload
46: .line 257
ixor
47: .line 260
getstatic java.util.zip.CRC32C.byteTable3:[I
iload 6 /* secondHalf */
bipush 24
iushr
iaload
48: .line 257
ixor
49: .line 261
getstatic java.util.zip.CRC32C.byteTable4:[I
iload 0 /* crc */
sipush 255
iand
iaload
50: .line 257
ixor
51: .line 262
getstatic java.util.zip.CRC32C.byteTable5:[I
iload 0 /* crc */
bipush 8
iushr
sipush 255
iand
iaload
52: .line 257
ixor
53: .line 263
getstatic java.util.zip.CRC32C.byteTable6:[I
iload 0 /* crc */
bipush 16
iushr
sipush 255
iand
iaload
54: .line 257
ixor
55: .line 264
getstatic java.util.zip.CRC32C.byteTable7:[I
iload 0 /* crc */
bipush 24
iushr
iaload
56: .line 257
ixor
istore 0 /* crc */
end local 6 // int secondHalf
end local 5 // int firstHalf
57: .line 228
StackMap locals:
StackMap stack:
iinc 2 /* off */ 8
StackMap locals:
StackMap stack:
58: iload 2 /* off */
iload 3 /* end */
bipush 8
isub
if_icmplt 11
59: .line 268
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 64
60: .line 269
iload 0 /* crc */
invokestatic java.lang.Integer.reverseBytes:(I)I
istore 0 /* crc */
end local 4 // int alignLength
61: .line 274
goto 64
62: .line 275
StackMap locals:
StackMap stack:
iload 0 /* crc */
bipush 8
iushr
getstatic java.util.zip.CRC32C.byteTable:[I
iload 0 /* crc */
aload 1 /* b */
iload 2 /* off */
baload
ixor
sipush 255
iand
iaload
ixor
istore 0 /* crc */
63: .line 274
iinc 2 /* off */ 1
StackMap locals:
StackMap stack:
64: iload 2 /* off */
iload 3 /* end */
if_icmplt 62
65: .line 278
iload 0 /* crc */
ireturn
end local 3 // int end
end local 2 // int off
end local 1 // byte[] b
end local 0 // int crc
LocalVariableTable:
Start End Slot Name Signature
0 66 0 crc I
0 66 1 b [B
0 66 2 off I
0 66 3 end I
3 61 4 alignLength I
4 8 5 alignEnd I
13 17 5 firstHalf I
20 22 5 firstHalf I
23 57 5 firstHalf I
16 17 6 secondHalf I
21 22 6 secondHalf I
24 57 6 secondHalf I
18 24 7 value J
RuntimeVisibleAnnotations:
jdk.internal.HotSpotIntrinsicCandidate()
MethodParameters:
Name Flags
crc
b
off
end
private static int updateDirectByteBuffer(int, long, int, int);
descriptor: (IJII)I
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=8, locals=8, args_size=4
start local 0 // int crc
start local 1 // long address
start local 3 // int off
start local 4 // int end
0: .line 289
iload 4 /* end */
iload 3 /* off */
isub
bipush 8
if_icmplt 56
1: .line 292
bipush 8
lload 1 /* address */
iload 3 /* off */
i2l
ladd
ldc 7
land
l2i
isub
bipush 7
iand
istore 5 /* alignLength */
start local 5 // int alignLength
2: .line 293
iload 3 /* off */
iload 5 /* alignLength */
iadd
istore 6 /* alignEnd */
start local 6 // int alignEnd
3: goto 8
4: .line 294
StackMap locals: int int
StackMap stack:
iload 0 /* crc */
bipush 8
iushr
5: .line 295
getstatic java.util.zip.CRC32C.byteTable:[I
iload 0 /* crc */
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
lload 1 /* address */
iload 3 /* off */
i2l
ladd
invokevirtual jdk.internal.misc.Unsafe.getByte:(J)B
ixor
sipush 255
iand
iaload
6: .line 294
ixor
istore 0 /* crc */
7: .line 293
iinc 3 /* off */ 1
StackMap locals:
StackMap stack:
8: iload 3 /* off */
iload 6 /* alignEnd */
if_icmplt 4
end local 6 // int alignEnd
9: .line 298
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 48
10: .line 299
iload 0 /* crc */
invokestatic java.lang.Integer.reverseBytes:(I)I
istore 0 /* crc */
11: .line 303
goto 48
12: .line 306
StackMap locals:
StackMap stack:
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
lload 1 /* address */
iload 3 /* off */
i2l
ladd
invokevirtual jdk.internal.misc.Unsafe.getInt:(J)I
istore 6 /* firstHalf */
start local 6 // int firstHalf
13: .line 307
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
lload 1 /* address */
iload 3 /* off */
i2l
ladd
ldc 4
ladd
invokevirtual jdk.internal.misc.Unsafe.getInt:(J)I
istore 7 /* secondHalf */
start local 7 // int secondHalf
14: .line 308
iload 0 /* crc */
iload 6 /* firstHalf */
ixor
istore 0 /* crc */
15: .line 309
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.LITTLE_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 32
16: .line 310
getstatic java.util.zip.CRC32C.byteTable7:[I
iload 0 /* crc */
sipush 255
iand
iaload
17: .line 311
getstatic java.util.zip.CRC32C.byteTable6:[I
iload 0 /* crc */
bipush 8
iushr
sipush 255
iand
iaload
18: .line 310
ixor
19: .line 312
getstatic java.util.zip.CRC32C.byteTable5:[I
iload 0 /* crc */
bipush 16
iushr
sipush 255
iand
iaload
20: .line 310
ixor
21: .line 313
getstatic java.util.zip.CRC32C.byteTable4:[I
iload 0 /* crc */
bipush 24
iushr
iaload
22: .line 310
ixor
23: .line 314
getstatic java.util.zip.CRC32C.byteTable3:[I
iload 7 /* secondHalf */
sipush 255
iand
iaload
24: .line 310
ixor
25: .line 315
getstatic java.util.zip.CRC32C.byteTable2:[I
iload 7 /* secondHalf */
bipush 8
iushr
sipush 255
iand
iaload
26: .line 310
ixor
27: .line 316
getstatic java.util.zip.CRC32C.byteTable1:[I
iload 7 /* secondHalf */
bipush 16
iushr
sipush 255
iand
iaload
28: .line 310
ixor
29: .line 317
getstatic java.util.zip.CRC32C.byteTable0:[I
iload 7 /* secondHalf */
bipush 24
iushr
iaload
30: .line 310
ixor
istore 0 /* crc */
31: .line 318
goto 47
32: .line 319
StackMap locals: int int
StackMap stack:
getstatic java.util.zip.CRC32C.byteTable0:[I
iload 7 /* secondHalf */
sipush 255
iand
iaload
33: .line 320
getstatic java.util.zip.CRC32C.byteTable1:[I
iload 7 /* secondHalf */
bipush 8
iushr
sipush 255
iand
iaload
34: .line 319
ixor
35: .line 321
getstatic java.util.zip.CRC32C.byteTable2:[I
iload 7 /* secondHalf */
bipush 16
iushr
sipush 255
iand
iaload
36: .line 319
ixor
37: .line 322
getstatic java.util.zip.CRC32C.byteTable3:[I
iload 7 /* secondHalf */
bipush 24
iushr
iaload
38: .line 319
ixor
39: .line 323
getstatic java.util.zip.CRC32C.byteTable4:[I
iload 0 /* crc */
sipush 255
iand
iaload
40: .line 319
ixor
41: .line 324
getstatic java.util.zip.CRC32C.byteTable5:[I
iload 0 /* crc */
bipush 8
iushr
sipush 255
iand
iaload
42: .line 319
ixor
43: .line 325
getstatic java.util.zip.CRC32C.byteTable6:[I
iload 0 /* crc */
bipush 16
iushr
sipush 255
iand
iaload
44: .line 319
ixor
45: .line 326
getstatic java.util.zip.CRC32C.byteTable7:[I
iload 0 /* crc */
bipush 24
iushr
iaload
46: .line 319
ixor
istore 0 /* crc */
end local 7 // int secondHalf
end local 6 // int firstHalf
47: .line 303
StackMap locals:
StackMap stack:
iinc 3 /* off */ 8
StackMap locals:
StackMap stack:
48: iload 3 /* off */
iload 4 /* end */
bipush 8
isub
if_icmple 12
49: .line 330
invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
getstatic java.nio.ByteOrder.BIG_ENDIAN:Ljava/nio/ByteOrder;
if_acmpne 56
50: .line 331
iload 0 /* crc */
invokestatic java.lang.Integer.reverseBytes:(I)I
istore 0 /* crc */
end local 5 // int alignLength
51: .line 336
goto 56
52: .line 337
StackMap locals:
StackMap stack:
iload 0 /* crc */
bipush 8
iushr
53: .line 338
getstatic java.util.zip.CRC32C.byteTable:[I
iload 0 /* crc */
getstatic java.util.zip.CRC32C.UNSAFE:Ljdk/internal/misc/Unsafe;
lload 1 /* address */
iload 3 /* off */
i2l
ladd
invokevirtual jdk.internal.misc.Unsafe.getByte:(J)B
ixor
sipush 255
iand
iaload
54: .line 337
ixor
istore 0 /* crc */
55: .line 336
iinc 3 /* off */ 1
StackMap locals:
StackMap stack:
56: iload 3 /* off */
iload 4 /* end */
if_icmplt 52
57: .line 341
iload 0 /* crc */
ireturn
end local 4 // int end
end local 3 // int off
end local 1 // long address
end local 0 // int crc
LocalVariableTable:
Start End Slot Name Signature
0 58 0 crc I
0 58 1 address J
0 58 3 off I
0 58 4 end I
2 51 5 alignLength I
3 9 6 alignEnd I
13 47 6 firstHalf I
14 47 7 secondHalf I
RuntimeVisibleAnnotations:
jdk.internal.HotSpotIntrinsicCandidate()
MethodParameters:
Name Flags
crc
address
off
end
}
SourceFile: "CRC32C.java"