Annotation Interface HostCompilerDirectives.BytecodeInterpreterHandler

Enclosing class:

HostCompilerDirectives

@Retention(RUNTIME)
@Target(METHOD)
public static @interface HostCompilerDirectives.BytecodeInterpreterHandler

Annotates a method that serves as a Truffle interpreter bytecode handler, that is, a method implements the complete semantics of a single bytecode instruction.

For more details, see the One Compilation per Bytecode Handler documentation.

Since:

25.1

Required Element Summary

Required Elements

Modifier and Type	Required Element	Description
int[]	value	The handled bytecode's opcodes.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
boolean	safepoint	Indicates whether host safepoint should be inserted in the stub correspond to this handler.
boolean	threading	Indicates whether to enable tail call threading at the end of this handler.

Element Details

value

int[] value

The handled bytecode's opcodes.

threading

boolean threading

Indicates whether to enable tail call threading at the end of this handler. If false, the threading will terminate, and control will return to the switch-loop after this handler is executed. Alternatively, omitting the HostCompilerDirectives.BytecodeInterpreterHandler annotation will cause control to return to the switch-loop before this handler is executed.

Default:

true

safepoint

boolean safepoint

Indicates whether host safepoint should be inserted in the stub correspond to this handler.

Default:

true