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This patch is largely a copy/paste from the aarch64 SVE counterpart, and adds support for tuples to the MVE intrinsics framework. Introduce function_resolver::infer_tuple_type which will be used to resolve overloaded vst2q and vst4q function names in a later patch. Fix access to acle_vector_types in a few places, as well as in infer_vector_or_tuple_type because we should shift the tuple size to the right by one bit when computing the array index. The new wrap_type_in_struct, register_type_decl and infer_tuple_type are largely copies of the aarch64 versions, and register_builtin_tuple_types is very similar. gcc/ChangeLog: * config/arm/arm-mve-builtins-shapes.cc (parse_type): Fix access to acle_vector_types. * config/arm/arm-mve-builtins.cc (wrap_type_in_struct): New. (register_type_decl): New. (register_builtin_tuple_types): Fix support for tuples. (function_resolver::infer_tuple_type): New. * config/arm/arm-mve-builtins.h (function_resolver::infer_tuple_type): Declare. (function_instance::tuple_type): Fix access to acle_vector_types.
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