[llvm] [GlobalISel] Fold Add Shift combine from SelectionDAG (PR #177371)

Tobias Grosser via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 29 07:24:31 PST 2026

Previous message: [llvm] [X86] canonicalizeLaneShuffleWithRepeatedOps - avoid folding vperm2x128(vpshufd(load()),undef) -> vpshufd(vperm2x128(load(),undef)) (PR #178675)
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tobiasgrosser wrote:

This LGTM. @arsenm, can you give us a final 👍 ?


https://github.com/llvm/llvm-project/pull/177371

Previous message: [llvm] [X86] canonicalizeLaneShuffleWithRepeatedOps - avoid folding vperm2x128(vpshufd(load()),undef) -> vpshufd(vperm2x128(load(),undef)) (PR #178675)
Next message: [llvm] [GlobalISel] Fold Add Shift combine from SelectionDAG (PR #177371)
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