| Bill Wendling | a08bb49 | 2013-08-22 00:51:19 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s |
| 2 | |||||
| 3 | ; CHECK: Loop %header: backedge-taken count is (0 smax %n) | ||||
| Wojciech Matyjewicz | adae053 | 2008-02-11 18:37:34 +0000 | [diff] [blame] | 4 | |
| 5 | define void @foo(i32 %n) { | ||||
| 6 | entry: | ||||
| 7 | br label %header | ||||
| 8 | header: | ||||
| 9 | %i = phi i32 [ 0, %entry ], [ %i.inc, %next ] | ||||
| 10 | %cond = icmp sgt i32 %n, %i | ||||
| 11 | br i1 %cond, label %next, label %return | ||||
| 12 | next: | ||||
| 13 | %i.inc = add i32 %i, 1 | ||||
| 14 | br label %header | ||||
| 15 | return: | ||||
| 16 | ret void | ||||
| 17 | } | ||||