| Sanjoy Das | 337d46b | 2015-03-24 19:29:18 +0000 | [diff] [blame] | 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} |