1 ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s 2 3 ; CHECK: Loop %header: backedge-taken count is (0 smax %n) 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 } 18
