[llvm] [X86] Narrow vXi32/vXi64 usubsat to vpsubusb/vpsubusw when LHS is known to fit in fewer bits (PR #206592)

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Thu Aug 13 04:35:48 PDT 2026


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RKSimon wrote:

unnecessary if we test for IsPowerOf2?

https://github.com/llvm/llvm-project/pull/206592


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