BBの返り値用のargumentの型が*Sになってるんですよね

sil hidden @$s1a8makePairQr_QrtyF : $@convention(thin) @substituted <τ_0_0, τ_0_1> () -> (@out τ_0_0, @out τ_0_1) for <@_opaqueReturnTypeOf("$s1a8makePairQr_QrtyF", 0) __, @_opaqueReturnTypeOf("$s1a8makePairQr_QrtyF", 0) __> { // %0 "$return_value" // user: %5 // %1 "$return_value" // user: %9 bb0(%0 : $*S, %1 : $*S):

(edited)