[PATCH] D70678: [RISCV] Handle fcopysign(f32, f64) and fcopysign(f64, f32)

[Luís Marques via Phabricator via llvm-commits]

luismarques created this revision.
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Adds tablegen patterns to explicitly handle fcopysign where the magnitude and sign arguments have different types, due to the sign value casts being removed the by DAGCombiner. Support for RV32IF requires a different mechanism. For clarity, it will be added as a separate patch. Adds tests for all relevant scenarios except RV32IF.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70678

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoD.td
  llvm/test/CodeGen/RISCV/copysign-casts.ll

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