[llvm] [RISCV] Combine ADDD(lo, hi, x, 0) -> WADDAU(lo, hi, x, 0). Combine WADDAU (WADDAU lo, hi, x, 0), y, 0 -> WADDAU lo, hi, x, y (PR #181396)

Craig Topper via llvm-commits llvm-commits at lists.llvm.org
Fri Feb 13 10:26:56 PST 2026


https://github.com/topperc edited https://github.com/llvm/llvm-project/pull/181396


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