[PATCH] D126060: [RISCV] Add basic cost modelling for fixed length vector arithmetic

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon May 23 21:27:45 PDT 2022


craig.topper added inline comments.


================
Comment at: llvm/test/Analysis/CostModel/RISCV/arith-fp.ll:21
+; RISCV32-LABEL: 'fadd'
+; RISCV32-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %F16 = fadd half undef, undef
+; RISCV32-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4F16 = fadd <4 x half> undef, undef
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Should you add `+experimental-zvfh`?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D126060/new/

https://reviews.llvm.org/D126060



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