llvm-project

cb648ba9 - [SLP]Check if the user node has instructions, used only outside

[SLP]Check if the user node has instructions, used only outside Gather nodes with parents, which scalar instructions are used only outside, are generated before the whole tree vectorization. Need to teach isGatherShuffledSingleRegisterEntry to check that such nodes are emitted first and they cannot depend on other nodes, which are emitted later. Fixes #141628