org.graalvm.compiler.api.replacements

Annotation Type Snippet

@Retention(value=RUNTIME)
 @Target(value=METHOD)
public @interface Snippet

A snippet is a Graal graph expressed as a Java source method. Snippets are used for lowering nodes that have runtime dependent semantics (e.g. the CHECKCAST bytecode).

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	allowMissingProbabilities Marks a method as known to be missing injected branch probabilities.
boolean	allowPartialIntrinsicArgumentMismatch A partial intrinsic exits by (effectively) calling the intrinsified method.

Element Detail

allowPartialIntrinsicArgumentMismatch

public abstract boolean allowPartialIntrinsicArgumentMismatch

A partial intrinsic exits by (effectively) calling the intrinsified method. Normally, this call must use exactly the same arguments as the call that is being intrinsified. For well known snippets that are used after frame state assignment, we want to relax this restriction.

Default:

false

allowMissingProbabilities

public abstract boolean allowMissingProbabilities

Marks a method as known to be missing injected branch probabilities. Normally snippets are required to have at least probabilities in their top level method but sometimes this is not feasible either because the code is outside of our control or there aren't clear probabilities that could be chosen.

Default:

false