[all-commits] [llvm/llvm-project] e10653: [RISCV] Remove vfmv.s.f and vfmv.f.s lmul pseudo v...

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e1065370aaacb1b1cb48e77d37d376bf024f4a39
      https://github.com/llvm/llvm-project/commit/e1065370aaacb1b1cb48e77d37d376bf024f4a39
  Author: Luke Lau <luke at igalia.com>
  Date:   2024-07-29 (Mon, 29 Jul 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
    M llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td
    M llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
    M llvm/test/CodeGen/RISCV/rvv/extractelt-fp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-bitcast.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-bitcast.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-llrint.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-lrint.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-fp-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vfptoi-constrained-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/fpclamptosat_vec.ll
    M llvm/test/CodeGen/RISCV/rvv/insertelt-fp.ll
    M llvm/test/CodeGen/RISCV/rvv/unmasked-ta.ll
    M llvm/test/CodeGen/RISCV/rvv/vfmv.f.s.ll
    M llvm/test/CodeGen/RISCV/rvv/vfmv.s.f.ll
    M llvm/test/CodeGen/RISCV/rvv/vreductions-fp-sdnode.ll
    M llvm/test/CodeGen/RISCV/rvv/vreductions-fp-vp.ll

  Log Message:
  -----------
  [RISCV] Remove vfmv.s.f and vfmv.f.s lmul pseudo variants (#100970)

In #71501 we removed the LMUL variants for vmv.s.x and vmv.x.s because
they ignore register groups, so this patch does the same for their
floating point equivalents.

We don't need to add any extra patterns for extractelt in
RISCVInstrInfoVSDPatterns.td because in lowerEXTRACT_VECTOR_ELT we make
sure that the node is narrowed down to LMUL 1.



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