BACKEND-ROCM: graph state checker rejects the quantized SiLU provider

Row: BACKEND-ROCM

The current private #3041 candidate c3c880d6abdfc6c698cee7e3bb1bbf4f73369062 completes the approved Qwen3.5-4B Q4_K_M gfx1100 smoke capture, but its state checker rejects that capture with missing required GetOp resolution.

scripts/check-rocm-graph-state.py:174–180 requires SiluAndMul for both admitted model profiles. The retained 4B capture reports MoeSiluMul: 96 and MatmulBTQuant: 387, and no SiluAndMul resolution. The 0.8B BF16 capture satisfied the existing assertion. Provider resolution is an observation of dispatch selection; it is not device invocation proof.

Reproduce with the exact candidate rocm_graph_state_capture binary SHA256 9dfcd1b3f37dde4cd0ffd2e5f5af6ff61f00c2472ad5ff87fba06990f9f7272c, approved image sha256:80aab4c182a1f3eeebe286173977e57fcaf10a049b41f475655b35d285de31dc, model SHA256 00fe7986ff5f6b463e62455821146049db6f9313603938a70800d1fb69ef11a4, KV auto, scenario smoke, and ambient graph flags. The capture completed on physical gfx1100 device0 under the GPU mutex, with one capture and six replay counters. The independent state-reader gate remains FAIL; no comparison, default, oracle, or performance acceptance is claimed.

The repair must derive required providers from each validated loaded profile and its actual production chain. Preserve rejection of missing or wrong-profile providers. Add the retained quantized capture as a regression input, prove detector sensitivity, and use fresh review plus operator reruns. Do not change product providers or relax the state/logit/tensor comparison. This work belongs in the existing #3041 implementation flow and its owning spec.

Start with scripts/check-rocm-graph-state.py:174–180 and read the existing #3041 implementation flow and owning spec. Trace how each validated loaded profile and its production chain determines required providers, while preserving rejection of missing or wrong-profile providers. Add the retained quantized capture as a regression input, prove detector sensitivity, and complete fresh review plus operator reruns.