1 ; RUN: opt < %s -analyze -scalar-evolution |& not grep smax 2 ; PR2070 3 4 define i32 @a(i32 %x) nounwind { 5 entry: 6 icmp sgt i32 %x, 1 ; <i1>:0 [#uses=1] 7 br i1 %0, label %bb.nph, label %bb2 8 9 bb.nph: ; preds = %entry 10 br label %bb 11 12 bb: ; preds = %bb1, %bb.nph 13 %z.02 = phi i32 [ %1, %bb1 ], [ 1, %bb.nph ] ; <i32> [#uses=1] 14 %i.01 = phi i32 [ %2, %bb1 ], [ 1, %bb.nph ] ; <i32> [#uses=2] 15 mul i32 %z.02, %i.01 ; <i32>:1 [#uses=2] 16 add i32 %i.01, 1 ; <i32>:2 [#uses=2] 17 br label %bb1 18 19 bb1: ; preds = %bb 20 icmp slt i32 %2, %x ; <i1>:3 [#uses=1] 21 br i1 %3, label %bb, label %bb1.bb2_crit_edge 22 23 bb1.bb2_crit_edge: ; preds = %bb1 24 %.lcssa = phi i32 [ %1, %bb1 ] ; <i32> [#uses=1] 25 br label %bb2 26 27 bb2: ; preds = %bb1.bb2_crit_edge, %entry 28 %z.0.lcssa = phi i32 [ %.lcssa, %bb1.bb2_crit_edge ], [ 1, %entry ] ; <i32> [#uses=1] 29 ret i32 %z.0.lcssa 30 } 31
