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; RUN: opt < %s -instcombine -S | grep icmp
; PR1678
@A = alias weak void ()* @B ; <void ()*> [#uses=1]
declare extern_weak void @B()
define i32 @active() {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
%tmp1 = icmp ne void ()* @A, null ; <i1> [#uses=1]
%tmp12 = zext i1 %tmp1 to i32 ; <i32> [#uses=1]
ret i32 %tmp12
}
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