Enum Class JitConfiguration.Opt

java.lang.Object

java.lang.Enum<JitConfiguration.Opt>

ghidra.pcode.emu.jit.JitConfiguration.Opt

All Implemented Interfaces:

Serializable, Comparable<JitConfiguration.Opt>, Constable

Enclosing class:

JitConfiguration

public static enum JitConfiguration.Opt
extends Enum<JitConfiguration.Opt>

Fluent specifiers for the boolean options of JitConfiguration

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EMIT_COUNTERS	Causes the translator to emit a call to JitPcodeThread.count(int, int) at the start of each basic block.
FOLD_CONSTANTS	Attempt to fold constants.
LOG_STACK_TRACES	Causes the translator to emit code to print a stack trace in its exception handlers.
REMOVE_UNREACHABLE_BLOCKS	Remove p-code basic blocks that cannot be reached.
REMOVE_UNUSED_OPERATIONS	Some p-code ops produce outputs that are never used later.

Method Summary

Modifier and Type	Method	Description
static JitConfiguration.Opt	valueOf(String name)	Returns the enum constant of this class with the specified name.
static JitConfiguration.Opt[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

FOLD_CONSTANTS

public static final JitConfiguration.Opt FOLD_CONSTANTS

Attempt to fold constants. This will re-write ops that output a folded constant as a copy, and any op that takes a folded constant input as taking that const directly. To see benefits, this should be used with REMOVE_UNUSED_OPERATIONS.

REMOVE_UNREACHABLE_BLOCKS

public static final JitConfiguration.Opt REMOVE_UNREACHABLE_BLOCKS

Remove p-code basic blocks that cannot be reached. The ASM library or classfile API may remove unreachable blocks on its own, regardless of this option. If this option is enabled, the JIT compiler will remove unreachable blocks, before analyzing for unused operations, permitting more code removal.

REMOVE_UNUSED_OPERATIONS

public static final JitConfiguration.Opt REMOVE_UNUSED_OPERATIONS

Some p-code ops produce outputs that are never used later. One common case is flags computed from arithmetic operations. If this option is enabled, the JIT compiler will remove those p-code ops.

EMIT_COUNTERS

public static final JitConfiguration.Opt EMIT_COUNTERS

Causes the translator to emit a call to JitPcodeThread.count(int, int) at the start of each basic block.

LOG_STACK_TRACES

public static final JitConfiguration.Opt LOG_STACK_TRACES

Causes the translator to emit code to print a stack trace in its exception handlers.

Method Details

values

public static JitConfiguration.Opt[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static JitConfiguration.Opt valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null