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[RISCV] Promote bf16 ops to f32 with zvfbfmin #108937

Merged
merged 1 commit into from
Sep 18, 2024
Merged

[RISCV] Promote bf16 ops to f32 with zvfbfmin #108937

merged 1 commit into from
Sep 18, 2024

Commits on Sep 18, 2024

  1. [RISCV] Promote bf16 ops to f32 with zvfbfmin 

    For f16 with zvfhmin, we promote most ops and VP ops to f32. This does the same for bf16 with zvfbfmin, so the two fp types should now be in sync.

There are a few places in the custom lowering where we need to check for a LMUL 8 f16/bf16 vector that can't be promoted and must be split, this extracts that out into isPromotedOpNeedingSplit.

In a follow up NFC we can deduplicate the code that sets up the promotions.
    @lukel97
    lukel97 committed Sep 18, 2024
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