1 ; RUN: opt < %s -jump-threading 2 ; PR9446 3 ; Just check that it doesn't crash 4 5 define void @int327() nounwind { 6 entry: 7 unreachable 8 9 for.cond: ; preds = %for.cond4 10 %tobool3 = icmp eq i8 undef, 0 11 br i1 %tobool3, label %for.cond23, label %for.cond4 12 13 for.cond4: ; preds = %for.cond 14 br label %for.cond 15 16 for.cond23: ; preds = %for.body28, %for.cond23, %for.cond 17 %conv321 = phi i32 [ %conv32, %for.body28 ], [ 0, %for.cond ], [ %conv321, %for.cond23 ] 18 %l_266.0 = phi i32 [ %phitmp, %for.body28 ], [ 0, %for.cond ], [ 0, %for.cond23 ] 19 %cmp26 = icmp eq i32 %l_266.0, 0 20 br i1 %cmp26, label %for.body28, label %for.cond23 21 22 for.body28: ; preds = %for.cond23 23 %and = and i32 %conv321, 1 24 %conv32 = zext i8 undef to i32 25 %add = add nsw i32 %l_266.0, 1 26 %phitmp = and i32 %add, 255 27 br label %for.cond23 28 29 if.end43: ; No predecessors! 30 ret void 31 } 32 33
