[all-commits] [llvm/llvm-project] 02139b: MIPSr6: Set FMAXNUM and FMINNUM as Legal (#139009)

[YunQiang Su via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 02139b140beff69edc376bd15a80e0670322085f
      https://github.com/llvm/llvm-project/commit/02139b140beff69edc376bd15a80e0670322085f
  Author: YunQiang Su <yunqiang at isrc.iscas.ac.cn>
  Date:   2025-05-09 (Fri, 09 May 2025)

  Changed paths:
    M llvm/lib/Target/Mips/Mips32r6InstrInfo.td
    M llvm/lib/Target/Mips/MipsISelLowering.cpp
    M llvm/test/CodeGen/Mips/mipsr6-minmaxnum.ll
    M llvm/test/CodeGen/Mips/msa/f16-llvm-ir.ll

  Log Message:
  -----------
  MIPSr6: Set FMAXNUM and FMINNUM as Legal (#139009)

Now we define FMAXNUM and FMINNUM as IEEE754-2008 with +0.0>-0.0.
MIPSr6's fmax/fmin just follow this rules full.

FMAXNUM_IEEE and FMINNUM_IEEE will be removed in future once:
1. Fixes FMAXNUM/FMINNUM for all targets
2. The use of FMAXNUM_IEEE/FMINNUM_IEEE are not used by middle end
anymore.



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