1 ; RUN: opt -irce-print-changed-loops -S -irce -verify < %s 2>&1 | FileCheck %s 2 3 ; CHECK-NOT: constrained loop 4 5 define void @single_access_no_preloop_no_offset(i32 *%arr, i32 *%a_len_ptr, i32 %n) { 6 entry: 7 %first.itr.check = icmp sgt i32 %n, 0 8 br i1 %first.itr.check, label %loop, label %exit 9 10 loop: 11 %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ] 12 %idx.next = add i32 %idx, 1 13 %len = load i32, i32* %a_len_ptr, !range !0 14 %abc = icmp slt i32 %idx, %len 15 br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 16 17 in.bounds: 18 %addr = getelementptr i32, i32* %arr, i32 %idx 19 store i32 0, i32* %addr 20 %next = icmp slt i32 %idx.next, %n 21 br i1 %next, label %loop, label %exit 22 23 out.of.bounds: 24 ret void 25 26 exit: 27 ret void 28 } 29 30 !0 = !{i32 0, i32 2147483647} 31 !1 = !{!"branch_weights", i32 64, i32 4} 32
