llvm-project

1e089979 - [DAG] visitEXTRACT_SUBVECTOR - Fold EXTRACT_SUBVECTOR(EXTRACT_SUBVECTOR(X,C1),C0) with nonzero indices (#204533)

[DAG] visitEXTRACT_SUBVECTOR - Fold EXTRACT_SUBVECTOR(EXTRACT_SUBVECTOR(X,C1),C0) with nonzero indices (#204533) Removed equivalent fold from x86 and added generic DAG fold to replace it - net zero test changes Refactored version of #200935