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; RUN: opt < %s -adce
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define i32 @"main"(i32 %argc) {
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br label %2
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%retval = phi i32 [ %argc, %2 ] ; <i32> [#uses=2]
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%two = add i32 %retval, %retval ; <i32> [#uses=1]
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ret i32 %two
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br label %1
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}
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