[llvm] [X86] Add tests showing failure to convert 512-bit concats of 128-bit chains to X86ISD::SHUF128 nodes (PR #228512)

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 2 09:48:18 PDT 2026


https://github.com/RKSimon auto_merge_enabled https://github.com/llvm/llvm-project/pull/228512


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