Introduce `migraphx.attention` op in MIGraphX Dialect#2316

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migraphx_attention

Commits on Apr 30, 2026

Commits on May 1, 2026

Validate preSoftmaxBody arg/yield types in migraphx.attention verifier
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Require softmaxType when softmax input doesn't match V's element type
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Add migraphx.attention E2E coverage mirroring pr-e2e/attention/padded*
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Clamp host sliding-window lower bound and tighten kvcache mask docs
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Extend preSoftmaxBody scalar lowering and tighten verifier allowlist
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[NFC] Share migraphx.attention contracts via AttentionUtils.h
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[NFC] Simplify migraphx.attention verifier and host stride helpers

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Assert dispatcher / verifier allowlist parity and exercise sliding-window clamp

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Tighten migraphx.attention feature interactions

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[NFC] Clean up unused MIXR-to-tensor helper and host LSE reshape

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Fix migraphx.attention splitKV lowering/decompose alignment

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Tighten migraphx.attention verifier across operand/attr edge cases

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Document actual cause of splitkv-scale loose threshold (rock kernel bug)

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Refine splitkv-scale loose-threshold comment with grid-size detail

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Pinpoint splitkv-scale rock-side bug to postProcessFirstGemm read

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Commits on May 2, 2026

Commits on May 3, 2026

Commits on May 4, 2026

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