RFR: 8292780: misc tests failed "assert(false) failed: graph should be schedulable"

[Tobias Hartmann]

On Fri, 23 Sep 2022 15:48:21 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> PhaseMacroExpand::generate_partial_inlining_block() adds
> LoadVectorMasked nodes to the IR graph and then
> LoadNode::split_through_phi() tries to split one of them through phi
> but because that method ignores the mask input to that LoadNode (it
> only knows about control, memory and address inputs) the resulting
> graph is broken. Fix I propose is to skip
> LoadNode::split_through_phi() for those LoadVector nodes that have
> extra inputs.

So this is a regression from [JDK-8252848](https://bugs.openjdk.org/browse/JDK-8252848), correct?

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PR: https://git.openjdk.org/jdk/pull/10410