public void lower(ArrayCopyUnrollNode arraycopy, LoweringTool tool) {
StructuredGraph graph = arraycopy.graph();
if (!graph.getGuardsStage().areFrameStatesAtDeopts()) {
// Can't be lowered yet
return;
}
SnippetInfo snippetInfo = arraycopyUnrolledWorkSnippet;
Arguments args = new Arguments(snippetInfo, graph.getGuardsStage(), tool.getLoweringStage());
args.add("nonNullSrc", arraycopy.getSource());
args.add("srcPos", arraycopy.getSourcePosition());
args.add("nonNullDest", arraycopy.getDestination());
args.add("destPos", arraycopy.getDestinationPosition());
args.addConst("length", arraycopy.getUnrollLength());
args.addConst("elementKind", arraycopy.getElementKind());
template(args)
.instantiate(
providers.getMetaAccess(), arraycopy, SnippetTemplate.DEFAULT_REPLACER, args);
}
/** Snippet for unrolled arraycopy. */
@Snippet
public static void arraycopyUnrolledIntrinsic(
Object src,
int srcPos,
Object dest,
int destPos,
int length,
@ConstantParameter int unrolledLength,
@ConstantParameter JavaKind elementKind) {
Object nonNullSrc = GraalDirectives.guardingNonNull(src);
Object nonNullDest = GraalDirectives.guardingNonNull(dest);
checkLimits(nonNullSrc, srcPos, nonNullDest, destPos, length);
if (length == 0) {
zeroLengthDynamicCounter.inc();
} else {
nonZeroLengthDynamicCounter.inc();
nonZeroLengthDynamicCopiedCounter.add(length);
}
ArrayCopyUnrollNode.arraycopy(
nonNullSrc, srcPos, nonNullDest, destPos, length, unrolledLength, elementKind);
}
