too-many-parametersThe callee takes more than 16 parameters

Reported by --explain after a verdict.

mettle explain too-many-parameters

Past sixteen parameters the inliner's argument-binding work grows faster than the inlining is worth.

Fix: pass a struct. That is usually the better interface anyway, and it brings the function back under the cap.

Related

• callee-no-bodyThe callee has no body to inline
• callee-noinlineThe callee is marked @noinline
• callee-denylistedThe callee is on the compiler's inline denylist
• callee-parameter-namesThe callee's parameter names are unavailable
• callee-over-budgetThe callee's body is over the inline size budget
• callee-call-countThe callee makes more calls than the inline call-count budget allows
• callee-inline-asmThe callee contains inline assembly
• callee-has-loopThe callee's loop body is over the inline size budget