Modifier and Type	Class and Description
public static class	CodeUtil.DefaultRefMapFormatter Formats a location present in a reference map.
public static class	CodeUtil.NumberedRefMapFormatter
public static interface	CodeUtil.RefMapFormatter

Modifier and Type	Field and Description
public static final int	K
public static final int	M
public static final String	NEW_LINE

Access	Constructor and Description
public	CodeUtil()

Method Summary

Modifier and Type	Method and Description
public static StringBuilder	Returns: the value of `sb` append(StringBuilder the `StringBuilder` to append to sb, BytecodePosition the code position to format and append to `sb` pos) Appends a formatted code position to a `StringBuilder`.
public static StringBuilder	Returns: the value of `sb` append(StringBuilder the `StringBuilder` to append to sb, BytecodeFrame the frame to format and append to `sb` frame) Appends a formatted frame to a `StringBuilder`.
public static StringBuilder	Returns: the value of `sb` append(StringBuilder the `StringBuilder` to append to sb, DebugInfo the debug info to format and append to `sb` info, CodeUtil.RefMapFormatter formatterArg) Appends a formatted debug info to a `StringBuilder`.
public static long	Returns: a long with the same value as the `inputBits`-bit number `value` convert(long the input value value, int the bit width of the input value inputBits, boolean whether the values should be interpreted as signed or unsigned unsigned) Convert an integer to long.
public static CallingConvention	getCallingConvention(CodeCacheProvider codeCache, CallingConvention.Type type, ResolvedJavaMethod method, ValueKindFactory<?> valueKindFactory) Create a calling convention from a `ResolvedJavaMethod`.
public static boolean	isEven(int n)
public static boolean	isOdd(int n)
public static boolean	Returns: `true` if the value is a power of two; `false` otherwise isPowerOf2(int the value to check val) Checks whether the specified integer is a power of two.
public static boolean	Returns: `true` if the value is a power of two; `false` otherwise isPowerOf2(long the value to check val) Checks whether the specified long is a power of two.
public static int	Returns: the log base 2 of the value log2(int the value val) Computes the log (base 2) of the specified integer, rounding down.
public static int	Returns: the log base 2 of the value log2(long the value val) Computes the log (base 2) of the specified long, rounding down.
public static long	mask(int bits) Get a bitmask with the low `bits` bit set and the high `64 - bits` bit clear.
public static long	maxValue(int bits) Get the maximum value representable in a `bits` bit signed integer.
public static long	minValue(int bits) Get the minimum value representable in a `bits` bit signed integer.
public static long	Returns: `value` interpreted as `resultBits` bit number, encoded as signed long narrow(long the value value, int the result bit width resultBits) Narrow an integer value to a given bit width, and return the result as a signed long.
public static long	Returns: a signed long with the same value as the signed `inputBits`-bit number `value` signExtend(long the input value value, int the bit width of the input value inputBits) Sign extend an integer.
public static String	Returns: a string with one line per row and each column left-aligned tabulate(Object[] the cells of the table in row-major order cells, int the number of columns per row cols, int the number of space padding inserted before each formatted cell value lpad, int the number of space padding inserted after each formatted cell value rpad) Formats a given table as a string.
public static String	Returns: the values in `frame` as a tabulated string tabulateValues(BytecodeFrame frame) Formats the values in a frame as a tabulated string.
public static long	Returns: an unsigned long with the same value as the unsigned `inputBits`-bit number `value` zeroExtend(long the input value value, int the bit width of the input value inputBits) Zero extend an integer.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

K	back to summary
public static final int K

M	back to summary
public static final int M

NEW_LINE	back to summary
public static final String NEW_LINE

Constructor Detail

CodeUtil	back to summary
public CodeUtil()

Method Detail

append back to summary

append	back to summary
public static StringBuilder append(StringBuilder sb, BytecodePosition pos) Appends a formatted code position to a `StringBuilder`. Parameters sb:StringBuilder the `StringBuilder` to append to pos:BytecodePosition the code position to format and append to `sb` Returns:StringBuilder the value of `sb`

public static StringBuilder append(StringBuilder sb, BytecodePosition pos)

Appends a formatted code position to a StringBuilder.

Parameters

sb:StringBuilder: the StringBuilder to append to
pos:BytecodePosition: the code position to format and append to sb

Returns:StringBuilder

the value of sb

append back to summary

append	back to summary
public static StringBuilder append(StringBuilder sb, BytecodeFrame frame) Appends a formatted frame to a `StringBuilder`. Parameters sb:StringBuilder the `StringBuilder` to append to frame:BytecodeFrame the frame to format and append to `sb` Returns:StringBuilder the value of `sb`

public static StringBuilder append(StringBuilder sb, BytecodeFrame frame)

Appends a formatted frame to a StringBuilder.

Parameters

sb:StringBuilder: the StringBuilder to append to
frame:BytecodeFrame: the frame to format and append to sb

Returns:StringBuilder

the value of sb

append back to summary

append	back to summary
public static StringBuilder append(StringBuilder sb, DebugInfo info, CodeUtil.RefMapFormatter formatterArg) Appends a formatted debug info to a `StringBuilder`. Parameters sb:StringBuilder the `StringBuilder` to append to info:DebugInfo the debug info to format and append to `sb` Returns:StringBuilder the value of `sb`

public static StringBuilder append(StringBuilder sb, DebugInfo info, CodeUtil.RefMapFormatter formatterArg)

Appends a formatted debug info to a StringBuilder.

Parameters

sb:StringBuilder: the StringBuilder to append to
info:DebugInfo: the debug info to format and append to sb

Returns:StringBuilder

the value of sb

convert back to summary

convert	back to summary
public static long convert(long value, int inputBits, boolean unsigned) Convert an integer to long. Parameters value:long the input value inputBits:int the bit width of the input value unsigned:boolean whether the values should be interpreted as signed or unsigned Returns:long a long with the same value as the `inputBits`-bit number `value`

public static long convert(long value, int inputBits, boolean unsigned)

Convert an integer to long.

Parameters

value:long: the input value
inputBits:int: the bit width of the input value
unsigned:boolean: whether the values should be interpreted as signed or unsigned

Returns:long

a long with the same value as the inputBits-bit number value

getCallingConvention	back to summary
public static CallingConvention getCallingConvention(CodeCacheProvider codeCache, CallingConvention.Type type, ResolvedJavaMethod method, ValueKindFactory<?> valueKindFactory) Create a calling convention from a `ResolvedJavaMethod`.

isEven	back to summary
public static boolean isEven(int n)

isOdd	back to summary
public static boolean isOdd(int n)

isPowerOf2 back to summary

isPowerOf2	back to summary
public static boolean isPowerOf2(int val) Checks whether the specified integer is a power of two. Parameters val:int the value to check Returns:boolean `true` if the value is a power of two; `false` otherwise

public static boolean isPowerOf2(int val)

Checks whether the specified integer is a power of two.

Parameters

val:int: the value to check

Returns:boolean

true if the value is a power of two; false otherwise

isPowerOf2 back to summary

isPowerOf2	back to summary
public static boolean isPowerOf2(long val) Checks whether the specified long is a power of two. Parameters val:long the value to check Returns:boolean `true` if the value is a power of two; `false` otherwise

public static boolean isPowerOf2(long val)

Checks whether the specified long is a power of two.

Parameters

val:long: the value to check

Returns:boolean

true if the value is a power of two; false otherwise

log2 back to summary

log2	back to summary
public static int log2(int val) Computes the log (base 2) of the specified integer, rounding down. (E.g `log2(8) = 3`, `log2(21) = 4` ) Parameters val:int the value Returns:int the log base 2 of the value

public static int log2(int val)

Computes the log (base 2) of the specified integer, rounding down. (E.g log2(8) = 3, log2(21) = 4 )

Parameters

val:int: the value

Returns:int

the log base 2 of the value

log2 back to summary

log2	back to summary
public static int log2(long val) Computes the log (base 2) of the specified long, rounding down. (E.g `log2(8) = 3`, `log2(21) = 4`) Parameters val:long the value Returns:int the log base 2 of the value

public static int log2(long val)

Computes the log (base 2) of the specified long, rounding down. (E.g log2(8) = 3, log2(21) = 4)

Parameters

val:long: the value

Returns:int

the log base 2 of the value

mask	back to summary
public static long mask(int bits) Get a bitmask with the low `bits` bit set and the high `64 - bits` bit clear.

maxValue	back to summary
public static long maxValue(int bits) Get the maximum value representable in a `bits` bit signed integer.

minValue	back to summary
public static long minValue(int bits) Get the minimum value representable in a `bits` bit signed integer.

narrow back to summary

narrow	back to summary
public static long narrow(long value, int resultBits) Narrow an integer value to a given bit width, and return the result as a signed long. Parameters value:long the value resultBits:int the result bit width Returns:long `value` interpreted as `resultBits` bit number, encoded as signed long

public static long narrow(long value, int resultBits)

Narrow an integer value to a given bit width, and return the result as a signed long.

Parameters

value:long: the value
resultBits:int: the result bit width

Returns:long

value interpreted as resultBits bit number, encoded as signed long

signExtend back to summary

signExtend	back to summary
public static long signExtend(long value, int inputBits) Sign extend an integer. Parameters value:long the input value inputBits:int the bit width of the input value Returns:long a signed long with the same value as the signed `inputBits`-bit number `value`

public static long signExtend(long value, int inputBits)

Sign extend an integer.

Parameters

value:long: the input value
inputBits:int: the bit width of the input value

Returns:long

a signed long with the same value as the signed inputBits-bit number value

tabulate back to summary

tabulate	back to summary
public static String tabulate(Object[] cells, int cols, int lpad, int rpad) Formats a given table as a string. The value of each cell is produced by `String#valueOf(Object)`. Parameters cells:Object[] the cells of the table in row-major order cols:int the number of columns per row lpad:int the number of space padding inserted before each formatted cell value rpad:int the number of space padding inserted after each formatted cell value Returns:String a string with one line per row and each column left-aligned

public static String tabulate(Object[] cells, int cols, int lpad, int rpad)

Formats a given table as a string. The value of each cell is produced by String#valueOf(Object).

Parameters

cells:Object[]: the cells of the table in row-major order
cols:int: the number of columns per row
lpad:int: the number of space padding inserted before each formatted cell value
rpad:int: the number of space padding inserted after each formatted cell value

Returns:String

a string with one line per row and each column left-aligned

tabulateValues back to summary

tabulateValues	back to summary
public static String tabulateValues(BytecodeFrame frame) Formats the values in a frame as a tabulated string. Returns:String the values in `frame` as a tabulated string

public static String tabulateValues(BytecodeFrame frame)

Formats the values in a frame as a tabulated string.

Returns:String: the values in frame as a tabulated string

zeroExtend back to summary

zeroExtend	back to summary
public static long zeroExtend(long value, int inputBits) Zero extend an integer. Parameters value:long the input value inputBits:int the bit width of the input value Returns:long an unsigned long with the same value as the unsigned `inputBits`-bit number `value`

public static long zeroExtend(long value, int inputBits)

Zero extend an integer.

Parameters

value:long: the input value
inputBits:int: the bit width of the input value

Returns:long

an unsigned long with the same value as the unsigned inputBits-bit number value

jdk.vm.ci.code back to summary

public Class CodeUtil.DefaultRefMapFormatter

Class Inheritance

extends Object
implements RefMapFormatter

java.lang.Object
jdk.vm.ci.code.CodeUtil.DefaultRefMapFormatter

All Implemented Interfaces

jdk.vm.ci.code.CodeUtil.RefMapFormatter

Formats a location present in a reference map.

Field Summary

Modifier and Type	Field and Description
public final Register	fp The register used as the frame pointer.
public final int	refMapToFPOffset The offset (in bytes) from the slot pointed to by `fp` to the slot corresponding to bit 0 in the frame reference map.
public final int	slotSize The size of a stack slot.

Constructor Summary

Access	Constructor and Description
public	DefaultRefMapFormatter(int slotSize, Register fp, int refMapToFPOffset)

Method Summary

Modifier and Type	Method and Description
public String	formatStackSlot(int frameRefMapIndex) Implements jdk.vm.ci.code.CodeUtil.RefMapFormatter.formatStackSlot.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

fp	back to summary
public final Register fp The register used as the frame pointer.

refMapToFPOffset	back to summary
public final int refMapToFPOffset The offset (in bytes) from the slot pointed to by `fp` to the slot corresponding to bit 0 in the frame reference map.

slotSize	back to summary
public final int slotSize The size of a stack slot.

Constructor Detail

DefaultRefMapFormatter	back to summary
public DefaultRefMapFormatter(int slotSize, Register fp, int refMapToFPOffset)

Method Detail

formatStackSlot	back to summary
public String formatStackSlot(int frameRefMapIndex) Implements jdk.vm.ci.code.CodeUtil.RefMapFormatter.formatStackSlot. Annotations @Override

formatStackSlot

back to summary

public String formatStackSlot(int frameRefMapIndex)

Implements jdk.vm.ci.code.CodeUtil.RefMapFormatter.formatStackSlot.

Annotations

@Override

public Class CodeUtil

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Class CodeUtil.DefaultRefMapFormatter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Class CodeUtil.NumberedRefMapFormatter

Constructor Summary

Method Summary

Constructor Detail

Method Detail

public Interface CodeUtil.RefMapFormatter

Method Summary

Method Detail

Modifier and Type	Method and Description
public String	formatRegister(int regRefMapIndex)
public String	formatStackSlot(int frameRefMapIndex) Implements jdk.vm.ci.code.CodeUtil.RefMapFormatter.formatStackSlot.