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The following removes the confusion around num_mask_args that was added to properly "guess" the number of mask elements in a AVX512 mask that's just represented as int. The actual mistake lies in the mixup of 'ncopies' which is used to track the number of OMP SIMD calls to be emitted rather than the number of input vectors. So this reverts the earlier r16-5374-g5c2fdfc24e343c, uses the proper 'ncopies' for loop mask record/query and adjusts the guessing of the SIMD arg mask elements. PR tree-optimization/122762 PR tree-optimization/122736 PR tree-optimization/122790 * cgraph.h (cgraph_simd_clone_arg::linear_step): Document use for SIMD_CLONE_ARG_TYPE_MASK. * omp-simd-clone.cc (simd_clone_adjust_argument_types): Record the number of mask arguments in linear_step if mask_mode is not VOIDmode. * tree-vect-stmts.cc (vectorizable_simd_clone_call): Remove num_mask_args computation, use a proper ncopies to query/register loop masks, use linear_step for the number of mask arguments when determining the number of mask elements in a mask argument. * gcc.dg/vect/vect-simd-clone-23.c: New testcase.
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