1 ; RUN: opt < %s -loop-reduce -disable-output 2 3 define void @try_swap() { 4 entry: 5 br i1 false, label %cond_continue.0.i, label %cond_false.0.i 6 cond_false.0.i: ; preds = %entry 7 ret void 8 cond_continue.0.i: ; preds = %entry 9 br i1 false, label %cond_continue.1.i, label %cond_false.1.i 10 cond_false.1.i: ; preds = %cond_continue.0.i 11 ret void 12 cond_continue.1.i: ; preds = %cond_continue.0.i 13 br i1 false, label %endif.3.i, label %else.0.i 14 endif.3.i: ; preds = %cond_continue.1.i 15 br i1 false, label %my_irand.exit82, label %endif.0.i62 16 else.0.i: ; preds = %cond_continue.1.i 17 ret void 18 endif.0.i62: ; preds = %endif.3.i 19 ret void 20 my_irand.exit82: ; preds = %endif.3.i 21 br i1 false, label %else.2, label %then.4 22 then.4: ; preds = %my_irand.exit82 23 ret void 24 else.2: ; preds = %my_irand.exit82 25 br i1 false, label %find_affected_nets.exit, label %loopentry.1.i107.outer.preheader 26 loopentry.1.i107.outer.preheader: ; preds = %else.2 27 ret void 28 find_affected_nets.exit: ; preds = %else.2 29 br i1 false, label %save_region_occ.exit, label %loopentry.1 30 save_region_occ.exit: ; preds = %find_affected_nets.exit 31 br i1 false, label %no_exit.1.preheader, label %loopexit.1 32 loopentry.1: ; preds = %find_affected_nets.exit 33 ret void 34 no_exit.1.preheader: ; preds = %save_region_occ.exit 35 ret void 36 loopexit.1: ; preds = %save_region_occ.exit 37 br i1 false, label %then.10, label %loopentry.3 38 then.10: ; preds = %loopexit.1 39 ret void 40 loopentry.3: ; preds = %endif.16, %loopexit.1 41 %indvar342 = phi i32 [ %indvar.next343, %endif.16 ], [ 0, %loopexit.1 ] ; <i32> [#uses=2] 42 br i1 false, label %loopexit.3, label %endif.16 43 endif.16: ; preds = %loopentry.3 44 %indvar.next343 = add i32 %indvar342, 1 ; <i32> [#uses=1] 45 br label %loopentry.3 46 loopexit.3: ; preds = %loopentry.3 47 br label %loopentry.4 48 loopentry.4: ; preds = %loopentry.4, %loopexit.3 49 %indvar340 = phi i32 [ 0, %loopexit.3 ], [ %indvar.next341, %loopentry.4 ] ; <i32> [#uses=2] 50 %tmp. = add i32 %indvar340, %indvar342 ; <i32> [#uses=1] 51 %tmp.526 = load i32*, i32** null ; <i32*> [#uses=1] 52 %gep.upgrd.1 = zext i32 %tmp. to i64 ; <i64> [#uses=1] 53 %tmp.528 = getelementptr i32, i32* %tmp.526, i64 %gep.upgrd.1 ; <i32*> [#uses=1] 54 store i32 0, i32* %tmp.528 55 %indvar.next341 = add i32 %indvar340, 1 ; <i32> [#uses=1] 56 br label %loopentry.4 57 } 58
