1 ; RUN: opt < %s -analyze -scalar-evolution \ 2 ; RUN: -scalar-evolution-max-iterations=0 | grep {Loop %bb: backedge-taken count is 100} 3 ; PR1533 4 5 @array = weak global [101 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=1] 6 7 define void @loop(i32 %x) { 8 entry: 9 br label %bb 10 11 bb: ; preds = %bb, %entry 12 %i.01.0 = phi i32 [ 100, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] 13 %tmp1 = getelementptr [101 x i32]* @array, i32 0, i32 %i.01.0 ; <i32*> [#uses=1] 14 store i32 %x, i32* %tmp1 15 %tmp4 = add i32 %i.01.0, -1 ; <i32> [#uses=2] 16 %tmp7 = icmp sgt i32 %tmp4, -1 ; <i1> [#uses=1] 17 br i1 %tmp7, label %bb, label %return 18 19 return: ; preds = %bb 20 ret void 21 } 22
