本文整理匯總了Java中jdk.vm.ci.meta.DeoptimizationReason.NullCheckException方法的典型用法代碼示例。如果您正苦於以下問題：Java DeoptimizationReason.NullCheckException方法的具體用法？Java DeoptimizationReason.NullCheckException怎麽用？Java DeoptimizationReason.NullCheckException使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類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個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: tryUseTrappingNullCheck
import jdk.vm.ci.meta.DeoptimizationReason; //導入方法依賴的package包/類
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; //導入方法依賴的package包/類
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; //導入方法依賴的package包/類
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);
}