1. gcc/config/aarch64/aarch64-protos.h:348:70: performance: Function parameter 'base' should be passed by const reference. [passedByValue] Source code is constexpr aarch64_simd_vec_issue_info (aarch64_base_vec_issue_info base, unsigned int ld2_st2_general_ops, unsigned int ld3_st3_general_ops, unsigned int ld4_st4_general_ops) 2. gcc/config/aarch64/aarch64-protos.h:377:34: performance: Function parameter 'base' should be passed by const reference. [passedByValue] Duplicate.
Thanks for the report. These constructors are only used for static data though, so I think we should keep them as-is.