RFR: 8292780: misc tests failed "assert(false) failed: graph should be schedulable" [v2]

[Roland Westrelin]

> 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.

Roland Westrelin has updated the pull request incrementally with one additional commit since the last revision:

  Update src/hotspot/share/opto/memnode.cpp
  
  Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10410/files
  - new: https://git.openjdk.org/jdk/pull/10410/files/826cabe7..706efaeb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10410&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10410&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10410.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10410/head:pull/10410

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