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The previous patch for this PR handled separate comparisons. However, as arm targets show, the same fix is needed when handling comparisons embedded in a VEC_COND_EXPR. Here too, the problem is that vect_get_constant_vectors will calculate its own vector type, using truth_type_for on the STMT_VINFO_VECTYPE, and the vectoriable_* routines need to be consistent with that. 2020-04-28 Richard Sandiford <richard.sandiford@arm.com> gcc/ PR tree-optimization/94727 * tree-vect-stmts.c (vect_is_simple_cond): If both comparison operands are invariant booleans, use the mask type associated with the STMT_VINFO_VECTYPE. Use !slp_node instead of !vectype to exclude SLP. (vectorizable_condition): Pass vectype unconditionally to vect_is_simple_cond.
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