b11090

cuda: fix sm_70 tile compilation error (#29224)

The 5-argument load_ldmatrix added in 1884824 only defines tile<16,8>, so the Volta tile<8,4> does not match. See #29222 for details. Building on 1884824, generalize the tile shape of the 5-argument load_ldmatrix from <16,8> to <I,J>, so the non-swizzle branch forwards to the 3-argument loader for any shape. Local compilation and testing passed.

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Website:

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Attestations:

• https://github.com/ggml-org/llama.cpp/attestations/49078119

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