[PATCH] D145678: [RISCV] Model interleave and deinterleave shuffles in cost model

[Luke Lau via Phabricator via llvm-commits]

luke added inline comments.


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Comment at: llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp:340
+      //   vwaddu.vv	v10, v8, v9
+      //   li		a0, -1                   (ignored)
+      //   vwmaccu.vx	v10, a0, v9
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I excluded the `li` here since in loops it's an invariant that's hoisted out. Do we still need to be pessimistic and include it here?


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  https://reviews.llvm.org/D145678/new/

https://reviews.llvm.org/D145678