| ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s |
| ; PR4569 |
| |
| define i16 @main() nounwind { |
| entry: |
| br label %bb.i |
| |
| bb.i: ; preds = %bb1.i, %bb.nph |
| ; We should be able to find the range for this expression. |
| ; CHECK: %l_95.0.i1 = phi i8 |
| ; CHECK: --> {0,+,-1}<%bb.i> U: [2,1) S: [2,1){{ *}}Exits: 2 |
| |
| %l_95.0.i1 = phi i8 [ %tmp1, %bb.i ], [ 0, %entry ] |
| |
| ; This cast shouldn't be folded into the addrec. |
| ; CHECK: %tmp = zext i8 %l_95.0.i1 to i16 |
| ; CHECK: --> (zext i8 {0,+,-1}<nw><%bb.i> to i16){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 2 |
| |
| %tmp = zext i8 %l_95.0.i1 to i16 |
| |
| %tmp1 = add i8 %l_95.0.i1, -1 |
| %phitmp = icmp eq i8 %tmp1, 1 |
| br i1 %phitmp, label %bb1.i.func_36.exit_crit_edge, label %bb.i |
| |
| bb1.i.func_36.exit_crit_edge: |
| ret i16 %tmp |
| } |
