1 ; RUN: opt < %s -analyze -scalar-evolution \ 2 ; RUN: -scalar-evolution-max-iterations=0 | grep {backedge-taken count is 100} 3 ; PR1101 4 5 @A = weak global [1000 x i32] zeroinitializer, align 32 6 7 8 define void @test(i32 %N) { 9 entry: 10 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 11 br label %bb3 12 13 bb: ; preds = %bb3 14 %tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0 ; <i32*> [#uses=1] 15 store i32 123, i32* %tmp 16 %tmp2 = add i32 %i.0, 1 ; <i32> [#uses=1] 17 br label %bb3 18 19 bb3: ; preds = %bb, %entry 20 %i.0 = phi i32 [ 2, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=3] 21 %SQ = mul i32 %i.0, %i.0 22 %tmp4 = mul i32 %i.0, 2 23 %tmp5 = sub i32 %SQ, %tmp4 24 %tmp3 = icmp sle i32 %tmp5, 9999 ; <i1> [#uses=1] 25 br i1 %tmp3, label %bb, label %bb5 26 27 bb5: ; preds = %bb3 28 br label %return 29 30 return: ; preds = %bb5 31 ret void 32 } 33
