[Bugfix] Fix correctness issue for float16xuint1 with fast dequantize #277
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LeiWang1999
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This pull request includes significant updates to the GPU intrinsic functions for decoding and interleaving weights in the
bitblaslibrary. The changes mainly focus on enhancing the decoding process with additional features and fixing a bug in the interleaving function.Enhancements to decoding functions:
bitblas/gpu/intrin/lop3.py: Introduced a new template functiondecode_i1b_to_f16with additional parameters for signed integers, scaling, and zero handling. This function supports different modes for zero handling (original, rescale, quantized) and includes the necessary logic for these modes.Bug fix in interleaving function:
bitblas/ops/lop3_permutate/lop3_permutate_impl.py: Corrected the bitmask and shift operation in the interleaving function to properly handle the upper bits of the input.