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1; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s2 3; Check the error message on using ", ..." when we can't actually forward4; varargs.5 6%struct.A = type { i32 }7 8declare ptr @f(ptr, ...)9 10define ptr @f_thunk(ptr %this) {11 %rv = musttail call ptr (ptr, ...) @f(ptr %this, ...)12; CHECK: error: unexpected ellipsis in argument list for musttail call in non-varargs function13 ret ptr %rv14}15