[PATCH] D103312: [RISCV] Support vector conversions between fp and i1

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck created this revision.
frasercrmck added reviewers: craig.topper, HsiangKai, rogfer01, evandro, khchen, arcbbb.
Herald added subscribers: vkmr, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
frasercrmck requested review of this revision.
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Herald added a project: LLVM.

This patch custom lowers FP_TO_[US]INT and [US]INT_TO_FP conversions
between floating-point and boolean vectors. As the default action is
scalarization, this patch both supports scalable-vector conversions and
improves the code generation for fixed-length vectors.

The lowering for these conversions can piggy-back on the existing
lowering, which lowers the operations to a supported narrowing/widening
conversion and then either an extension or truncation.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103312

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp2i.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-i2fp.ll
  llvm/test/CodeGen/RISCV/rvv/vfptoi-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/vitofp-sdnode.ll

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