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Many of the SME ZA intrinsics have two type suffixes: one for ZA and one for the vectors. The ZA suffix only conveys an element size, while the vector suffix conveys both an element type and an element size. Internally, the ZA suffix maps to an integer mode; e.g. za32 maps to VNx4SI. For SME2, it was relatively convenient to use the modes associated with both suffixes directly. For example, the (non-widening) FMLA intrinsics used SME_ZA_SDF_I to iterate over the possible ZA modes, used SME_ZA_SDFx24 to iterate over the possible vector tuple modes, and used a C++ condition to make sure that the element sizes agree. However, for later patches it's more convenient to rely only on the vector mode in cases where the ZA and vector element sizes are the same. This means splitting the widening MOPA/S patterns from the non-widening ones, but otherwise it's not a big change. gcc/ * config/aarch64/iterators.md (SME_ZA_SDF_I): Delete. (SME_MOP_HSDF): Replace with... (SME_MOP_SDF): ...this. * config/aarch64/aarch64-sme.md: Change the non-widening FMLA and FMLS patterns so that both mode parameters are the same, rather than using both SME_ZA_SDF_I and SME_ZA_SDFx24 and checking that their element sizes are the same. Split the FMOPA and FMOPS patterns into separate non-widening and widening forms, then update the non-widening forms in a similar way to FMLA and FMLS. * config/aarch64/aarch64-sve-builtins-functions.h (sme_2mode_function_t::expand): If the two type suffixes have the same element size, use the vector tuple mode for both mode parameters. |
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