Fix optional-output guard in DecoderAttention/MultiHeadAttention shape inference - #29268

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titaiwangms merged 8 commits into

microsoft:mainfrom

titaiwangms:attention-optional-outputs-shapeinf

Jun 30, 2026

Commits on Jun 30, 2026

Require all present outputs before populating attention shape inference

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Add regression tests for attention contrib ops with optional present outputs omitted

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Add 3-output positive cases for attention contrib op shape inference

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Clarify optional-output guard comments in attention shape inference

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Strengthen MHA/DMMHA two-output shape-inference regression tests

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Apply clang-format to attention optional-output shape inference tests

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docs: add contrib-op shape-inference output-index safety skill + coding-convention note

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