com.oracle.graal.hotspot.replacements

Class LoadExceptionObjectSnippets

java.lang.Object

com.oracle.graal.hotspot.replacements.LoadExceptionObjectSnippets

All Implemented Interfaces:

Snippets

public class LoadExceptionObjectSnippets
extends Object
implements Snippets

Snippet for loading the exception object at the start of an exception dispatcher.

The frame state upon entry to an exception handler is such that it is a rethrow exception state and the stack contains exactly the exception object (per the JVM spec) to rethrow. This means that the code generated for this node must not cause a deoptimization as the runtime/interpreter would not have a valid location to find the exception object to be rethrown.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LoadExceptionObjectSnippets.Templates

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	USE_C_RUNTIME Alternative way to implement exception object loading.

Constructor Summary

Constructors

Constructor and Description
LoadExceptionObjectSnippets()

Method Summary

Modifier and Type	Method and Description
static Object	loadException(Register threadRegister)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

USE_C_RUNTIME

private static final boolean USE_C_RUNTIME

Alternative way to implement exception object loading.

Constructor Detail

LoadExceptionObjectSnippets

public LoadExceptionObjectSnippets()

Method Detail

loadException

public static Object loadException(Register threadRegister)