org.graalvm.compiler.nodes.spi

Interface LoweringProvider

All Known Subinterfaces:

AArch64LoweringProviderMixin, AMD64LoweringProviderMixin, HotSpotLoweringProvider, SparcLoweringProviderMixin

All Known Implementing Classes:

AArch64HotSpotLoweringProvider, AMD64HotSpotLoweringProvider, DefaultHotSpotLoweringProvider, DefaultJavaLoweringProvider, SPARCHotSpotLoweringProvider

public interface LoweringProvider

Provides a capability for replacing a higher node with one or more lower level nodes.

Method Summary

Modifier and Type	Method and Description
void	lower(Node n, LoweringTool tool)
ValueNode	reconstructArrayIndex(jdk.vm.ci.meta.JavaKind elementKind, AddressNode address) Reconstructs the array index from an address node that was created as a lowering of an indexed access to an array.
Integer	smallestCompareWidth() Indicates the smallest width for comparing an integer value on the target platform.
boolean	supportsBulkZeroing() Indicates whether this target platform supports bulk zeroing of arbitrary size.
boolean	supportsOptimizedFilling(OptionValues options) Indicates whether this target platform supports optimized filling of memory regions with long values.

Method Detail

lower

void lower(Node n,
           LoweringTool tool)

reconstructArrayIndex

ValueNode reconstructArrayIndex(jdk.vm.ci.meta.JavaKind elementKind,
                                AddressNode address)

Reconstructs the array index from an address node that was created as a lowering of an indexed access to an array.

Parameters:

elementKind - the JavaKind of the array elements

address - an AddressNode pointing to an element in an array

Returns:

a node that gives the index of the element

smallestCompareWidth

Integer smallestCompareWidth()

Indicates the smallest width for comparing an integer value on the target platform.

supportsBulkZeroing

boolean supportsBulkZeroing()

Indicates whether this target platform supports bulk zeroing of arbitrary size.

supportsOptimizedFilling

boolean supportsOptimizedFilling(OptionValues options)

Indicates whether this target platform supports optimized filling of memory regions with long values.