1 ; RUN: opt < %s -instcombine -S | grep icmp 2 ; PR1678 3 4 @A = weak alias void (), void ()* @B ; <void ()*> [#uses=1] 5 6 define weak void @B() { 7 ret void 8 } 9 10 define i32 @active() { 11 entry: 12 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 13 %tmp1 = icmp ne void ()* @A, null ; <i1> [#uses=1] 14 %tmp12 = zext i1 %tmp1 to i32 ; <i32> [#uses=1] 15 ret i32 %tmp12 16 } 17