1 ; RUN: opt < %s -loop-reduce -disable-output 2 ; LSR should not crash on this. 3 4 define fastcc void @loadloop() { 5 entry: 6 switch i8 0, label %shortcirc_next [ 7 i8 32, label %loopexit.2 8 i8 59, label %loopexit.2 9 ] 10 shortcirc_next: ; preds = %no_exit.2, %entry 11 %indvar37 = phi i32 [ 0, %entry ], [ %indvar.next38, %no_exit.2 ] ; <i32> [#uses=3] 12 %gep.upgrd.1 = zext i32 %indvar37 to i64 ; <i64> [#uses=1] 13 %wp.2.4 = getelementptr i8, i8* null, i64 %gep.upgrd.1 ; <i8*> [#uses=1] 14 br i1 false, label %loopexit.2, label %no_exit.2 15 no_exit.2: ; preds = %shortcirc_next 16 %wp.2.4.rec = bitcast i32 %indvar37 to i32 ; <i32> [#uses=1] 17 %inc.1.rec = add i32 %wp.2.4.rec, 1 ; <i32> [#uses=1] 18 %inc.1 = getelementptr i8, i8* null, i32 %inc.1.rec ; <i8*> [#uses=2] 19 %indvar.next38 = add i32 %indvar37, 1 ; <i32> [#uses=1] 20 switch i8 0, label %shortcirc_next [ 21 i8 32, label %loopexit.2 22 i8 59, label %loopexit.2 23 ] 24 loopexit.2: ; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry 25 %wp.2.7 = phi i8* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ] ; <i8*> [#uses=0] 26 ret void 27 } 28 29
