1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s 2 ; PR4569 3 4 define i16 @main() nounwind { 5 entry: 6 br label %bb.i 7 8 bb.i: ; preds = %bb1.i, %bb.nph 9 ; We should be able to find the range for this expression. 10 ; CHECK: %l_95.0.i1 = phi i8 11 ; CHECK: --> {0,+,-1}<%bb.i> U: [2,1) S: [2,1){{ *}}Exits: 2 12 13 %l_95.0.i1 = phi i8 [ %tmp1, %bb.i ], [ 0, %entry ] 14 15 ; This cast shouldn't be folded into the addrec. 16 ; CHECK: %tmp = zext i8 %l_95.0.i1 to i16 17 ; CHECK: --> (zext i8 {0,+,-1}<nw><%bb.i> to i16){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 2 18 19 %tmp = zext i8 %l_95.0.i1 to i16 20 21 %tmp1 = add i8 %l_95.0.i1, -1 22 %phitmp = icmp eq i8 %tmp1, 1 23 br i1 %phitmp, label %bb1.i.func_36.exit_crit_edge, label %bb.i 24 25 bb1.i.func_36.exit_crit_edge: 26 ret i16 %tmp 27 } 28
