[PATCH] D127511: [RISCV] Refine costs for i1 reductions

[LiqinWeng via Phabricator via llvm-commits]

Miss_Grape added inline comments.


================
Comment at: llvm/test/Analysis/CostModel/RISCV/reduce-max.ll:180
   %V2   = call i16 @llvm.vector.reduce.smax.v2i16(<2 x i16> undef)
   %V4   = call i16 @llvm.vector.reduce.smax.v4i16(<4 x i16> undef)
   %V8   = call i16 @llvm.vector.reduce.smax.v8i16(<8 x i16> undef)
----------------
llvm.vector.reduce.smax.v2i16 and llvm.vector.reduce.smax.v4i16 have the same asemble, why
llvm.vector.reduce.smax.v2i16:  cost model  3
llvm.vector.reduce.smax.v4i16:  cost model 4
{F24241072}


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  https://reviews.llvm.org/D127511/new/

https://reviews.llvm.org/D127511