; RUN: opt < %s -newgvn ; PR12858 define void @fn5(i16 signext %p1, i8 signext %p2) nounwind uwtable { entry: br i1 undef, label %if.else, label %if.then if.then: ; preds = %entry br label %if.end if.else: ; preds = %entry %conv = sext i16 %p1 to i32 br label %if.end if.end: ; preds = %if.else, %if.then %conv1 = sext i16 %p1 to i32 br i1 undef, label %if.then3, label %if.else4 if.then3: ; preds = %if.end br label %if.end12 if.else4: ; preds = %if.end %conv7 = sext i8 %p2 to i32 %cmp8 = icmp eq i32 %conv1, %conv7 br i1 %cmp8, label %if.then10, label %if.end12 if.then10: ; preds = %if.else4 br label %if.end12 if.end12: ; preds = %if.then10, %if.else4, %if.then3 %conv13 = sext i8 %p2 to i32 ret void }