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riscv: add bf16 gemm with optional zvfbfwma - #7112

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nihui wants to merge 44 commits into

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nihui:riscv-bf16-gemm

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riscv: add bf16 gemm with optional zvfbfwma#7112
nihui wants to merge 44 commits into
Tencent:masterfrom
nihui:riscv-bf16-gemm

Commits on Oct 14, 2026
- riscv: add bf16 casts and resolve storage before packing
  nihui
  committed
  221e497
- riscv: add bf16 gemm with optional zvfbfwma acceleration
  nihui
  committed
  8229b34
- riscv: add bf16 clip
  nihui
  committed
  e6a3f8e
- riscv: use round-to-even bf16 conversion on rvv
  nihui
  committed
  f502a09
- riscv: fix bf16 gemm on fixed and xthead targets
  nihui
  committed
  e7864d1
- riscv: split bf16 gemm into a follow-up pull request
  nihui
  committed
  feffc92
- riscv: add bf16 gemm with optional zvfbfwma acceleration
  nihui
  committed
  80d6a90
- riscv: add zvfbfmin cast and clip dispatch
  nihui
  committed
  3b8e2e7
- Merge the Zvfbfmin foundation into the bf16 Gemm branch
  nihui
  committed
  b7384be
- apply code-format changes
  
  nihui
  authored and
  github-actions[bot]
  committed
  868f6b4
- apply code-format changes
  
  nihui
  authored and
  github-actions[bot]
  committed
  2c281fb
- riscv: share bf16 cast and clip kernels across ISA sources
  nihui
  committed
  cb3ed58
- Merge shared bf16 kernel organization from the foundation
  nihui
  committed
  56ac4a0
Commits on Oct 15, 2026
- riscv: use xtheadvector bf16 conversions in cast and clip
  nihui
  committed
  53bbf2b
- Merge updated RISC-V BF16 foundation with XThead conversions
  nihui
  committed
  32ebda7
- ci: diagnose XThead FXCR mode restoration
  nihui
  committed
  3704664
- Merge temporary XThead FXCR CI diagnostic
  nihui
  committed
  56241e1
- riscv: restore fxcr state with accrued exception flags
  nihui
  committed
  da25502
- Merge reviewed XThead FXCR restoration and remove diagnostic
  nihui
  committed
  e205a80
- riscv: expose low-level FXCR access for bf16 kernels
  nihui
  committed
  7cafd76
- Merge BF16 foundation CSR helper cleanup
  nihui
  committed
  2c29730
- riscv: follow ncnn comment style in bf16 foundation
  nihui
  committed
  bce801a
- riscv: sync bf16 foundation and gemm comment style
  nihui
  committed
  d911d28
- riscv: unify bf16 conversion helpers
  nihui
  committed
  42472ed
- Merge bf16 conversion helpers and scope XThead gemm conversions
  nihui
  committed
  8c6d105
- riscv: use intrinsics for xthead bf16 conversion
  nihui
  committed
  bf33692
- Merge intrinsic XThead bf16 conversion foundation
  nihui
  committed
  84263e9
Commits on Oct 16, 2026
- riscv: simplify bf16 helpers and prefer zvfbfmin
  nihui
  committed
  b44f1b8
- Merge bf16 helper simplification and conversion priority
  nihui
  committed
  dce13c1
- net: preserve low-width packing and test bf16 as a black box
  nihui
  committed
  bc2481d
- riscv: sync low-width packing and portable bf16 gemm tests
  nihui
  committed
  f0a8b79
- tests: keep focused bf16 foundation regressions
  nihui
  committed
  04878d2
- Merge focused bf16 foundation tests
  nihui
  committed
  da80109
- tests: retain only the net storage packing regression
  nihui
  committed
  7468e7b
- Merge final bf16 foundation test scope
  nihui
  committed
  6f9ac3e
- riscv: document xthead bf16 conversion preconditions
  nihui
  committed
  d3cba9f
- Merge bf16 helper precondition comment
  nihui
  committed
  d4c13ad
- riscv: nest zvfbfwma cmake options under zvfbfmin
  nihui
  committed
  b6d3c45
- Merge bf16 cmake extension dependency nesting
  nihui
  committed
  a895079
- riscv: build bf16 dispatch sources only for runtime cpu
  nihui
  committed
  d8456dd
- Merge bf16 runtime dispatch source guard
  nihui
  committed
  9c4f0a1
Commits on Oct 17, 2026
- riscv: align bf16 cast scalar loop style
  nihui
  committed
  383b721
- Merge bf16 cast scalar loop style
  nihui
  committed
  f9f4a8d
- Merge master after bf16 foundation landed
  nihui
  committed
  b15dc6f

Commits

Commits on Oct 14, 2026

Commits on Oct 15, 2026

Commits on Oct 16, 2026

Commits on Oct 17, 2026