本文整理汇总了Java中jdk.vm.ci.meta.DeoptimizationReason.NullCheckException方法的典型用法代码示例。如果您正苦于以下问题：Java DeoptimizationReason.NullCheckException方法的具体用法？Java DeoptimizationReason.NullCheckException怎么用？Java DeoptimizationReason.NullCheckException使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类jdk.vm.ci.meta.DeoptimizationReason的用法示例。
在下文中一共展示了DeoptimizationReason.NullCheckException方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: tryUseTrappingNullCheck
import jdk.vm.ci.meta.DeoptimizationReason; //导入方法依赖的package包/类
private static void tryUseTrappingNullCheck(AbstractDeoptimizeNode deopt, Node predecessor, DeoptimizationReason deoptimizationReason, JavaConstant speculation, long implicitNullCheckLimit) {
if (deoptimizationReason != DeoptimizationReason.NullCheckException && deoptimizationReason != DeoptimizationReason.UnreachedCode) {
return;
}
if (speculation != null && !speculation.equals(JavaConstant.NULL_POINTER)) {
return;
}
if (predecessor instanceof AbstractMergeNode) {
AbstractMergeNode merge = (AbstractMergeNode) predecessor;
if (merge.phis().isEmpty()) {
for (AbstractEndNode end : merge.cfgPredecessors().snapshot()) {
checkPredecessor(deopt, end.predecessor(), deoptimizationReason, implicitNullCheckLimit);
}
}
} else if (predecessor instanceof AbstractBeginNode) {
checkPredecessor(deopt, predecessor, deoptimizationReason, implicitNullCheckLimit);
}
}
示例2: canonical
import jdk.vm.ci.meta.DeoptimizationReason; //导入方法依赖的package包/类
private static ValueNode canonical(LoadFieldNode loadFieldNode, StampPair stamp, ValueNode forObject, ResolvedJavaField field,
ConstantFieldProvider constantFields, ConstantReflectionProvider constantReflection,
OptionValues options, MetaAccessProvider metaAccess, boolean canonicalizeReads, boolean allUsagesAvailable) {
LoadFieldNode self = loadFieldNode;
if (canonicalizeReads && metaAccess != null) {
ConstantNode constant = asConstant(constantFields, constantReflection, metaAccess, options, forObject, field);
if (constant != null) {
return constant;
}
if (allUsagesAvailable) {
PhiNode phi = asPhi(constantFields, constantReflection, metaAccess, options, forObject,
field, stamp.getTrustedStamp());
if (phi != null) {
return phi;
}
}
}
if (self != null && !field.isStatic() && forObject.isNullConstant()) {
return new DeoptimizeNode(DeoptimizationAction.InvalidateReprofile, DeoptimizationReason.NullCheckException);
}
if (self == null) {
self = new LoadFieldNode(stamp, forObject, field);
}
return self;
}
示例3: convertDeoptReason
import jdk.vm.ci.meta.DeoptimizationReason; //导入方法依赖的package包/类
public DeoptimizationReason convertDeoptReason(int reason) {
HotSpotVMConfig config = runtime.getConfig();
if (reason == config.deoptReasonNone) {
return DeoptimizationReason.None;
}
if (reason == config.deoptReasonNullCheck) {
return DeoptimizationReason.NullCheckException;
}
if (reason == config.deoptReasonRangeCheck) {
return DeoptimizationReason.BoundsCheckException;
}
if (reason == config.deoptReasonClassCheck) {
return DeoptimizationReason.ClassCastException;
}
if (reason == config.deoptReasonArrayCheck) {
return DeoptimizationReason.ArrayStoreException;
}
if (reason == config.deoptReasonUnreached0) {
return DeoptimizationReason.UnreachedCode;
}
if (reason == config.deoptReasonTypeCheckInlining) {
return DeoptimizationReason.TypeCheckedInliningViolated;
}
if (reason == config.deoptReasonOptimizedTypeCheck) {
return DeoptimizationReason.OptimizedTypeCheckViolated;
}
if (reason == config.deoptReasonNotCompiledExceptionHandler) {
return DeoptimizationReason.NotCompiledExceptionHandler;
}
if (reason == config.deoptReasonUnresolved) {
return DeoptimizationReason.Unresolved;
}
if (reason == config.deoptReasonJsrMismatch) {
return DeoptimizationReason.JavaSubroutineMismatch;
}
if (reason == config.deoptReasonDiv0Check) {
return DeoptimizationReason.ArithmeticException;
}
if (reason == config.deoptReasonConstraint) {
return DeoptimizationReason.RuntimeConstraint;
}
if (reason == config.deoptReasonLoopLimitCheck) {
return DeoptimizationReason.LoopLimitCheck;
}
if (reason == config.deoptReasonAliasing) {
return DeoptimizationReason.Aliasing;
}
if (reason == config.deoptReasonTransferToInterpreter) {
return DeoptimizationReason.TransferToInterpreter;
}
throw new JVMCIError("%x", reason);
}