[Mlir-commits] [mlir] Revert [mlir][vector] Use vector.broadcast in place of vector.splat (PR #148937)

[Andrzej Warzyński]

banach-space wrote:

Hm , where is this enigmatic commit?

```bash
$ git log -1
commit d67d91a9906366585162cebf292f923a3f28c8a6 (HEAD -> main, origin/main, origin/HEAD)
Author: Sudharsan Veeravalli <quic_svs at quicinc.com>
Date:   Wed Jul 16 00:31:33 2025 +0530

    [RISCV] Fix issues in ORI to QC.INSBI transformation (#148809)

    The transformation done in #147349 was incorrect since we were not
    passing the input node of the `OR` instruction to the `QC.INSBI`
    instruction leading to the generated instruction doing the wrong thing.
    In order to do this we first needed to add the output register to
    `QC.INSBI` as being both an input and output.

    The code produced after the above fix will need a copy (mv) to preserve
    the register input to the OR instruction if it has more than one use
    making the transformation net neutral ( `6-byte QC.E.ORI/ORAI` vs
    `2-byte C.MV + 4-byte QC.INSB`I). Avoid doing the transformation if
    there is more than one use of the input register to the OR instruction.
$ git show a599e60aff0c9981c4173db69e01eada2091cc23
fatal: bad object a599e60aff0c9981c4173db69e01eada2091cc23
```

https://github.com/llvm/llvm-project/pull/148937