1282988ba1
Following on from the previous reduction costs patch, this one adds costs for the SVE CLAST[AB] and FADDA instructions. These instructions occur within the loop body, whereas the reductions handled by the previous patch occur outside. Like with the previous patch, this one only becomes active if a CPU selects use_new_vector_costs. It should therefore have a very low impact on other CPUs. gcc/ * config/aarch64/aarch64-protos.h (sve_vec_cost): Turn into a derived class of simd_vec_cost. Add information about CLAST[AB] and FADDA instructions. * config/aarch64/aarch64.c (generic_sve_vector_cost): Update accordingly, using the vec_to_scalar costs for the new fields. (a64fx_sve_vector_cost): Likewise. (aarch64_reduc_type): New function. (aarch64_sve_in_loop_reduction_latency): Likewise. (aarch64_detect_vector_stmt_subtype): Take a vinfo parameter. Use aarch64_sve_in_loop_reduction_latency to handle SVE reductions that occur in the loop body. (aarch64_add_stmt_cost): Update call accordingly. |
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