llvm-project

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