[all-commits] [llvm/llvm-project] 22707f: [RISCV] Add Andes XAndesBFHCvt (Andes Scalar BFLOA...

[Jim Lin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 22707fd4a594a1b00cc68893dd1887c8971b4c98
      https://github.com/llvm/llvm-project/commit/22707fd4a594a1b00cc68893dd1887c8971b4c98
  Author: Jim Lin <jim at andestech.com>
  Date:   2025-07-15 (Tue, 15 Jul 2025)

  Changed paths:
    M clang/test/Driver/print-supported-extensions-riscv.c
    M clang/test/Preprocessor/riscv-target-features-andes.c
    M llvm/docs/RISCVUsage.rst
    M llvm/docs/ReleaseNotes.md
    M llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp
    M llvm/lib/Target/RISCV/RISCVFeatures.td
    M llvm/lib/Target/RISCV/RISCVInstrInfoXAndes.td
    M llvm/test/CodeGen/RISCV/attributes.ll
    M llvm/test/CodeGen/RISCV/features-info.ll
    M llvm/unittests/TargetParser/RISCVISAInfoTest.cpp

  Log Message:
  -----------
  [RISCV] Add Andes XAndesBFHCvt (Andes Scalar BFLOAT16) extension (#148563)

The spec can be found at:

https://github.com/andestech/andes-v5-isa/releases/tag/ast-v5_4_0-release.

The extension includes only two instructions: one for converting from
f32 to f16, and another for converting from f16 to f32.

This patch only implements MC support for XAndesBFHCvt.



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