| Hal Finkel | b359b73 | 2015-01-09 15:51:16 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -S -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -loop-unroll | FileCheck %s |
| 2 | define void @unroll_opt_for_size() nounwind optsize { |
| 3 | entry: |
| 4 | br label %loop |
| 5 | |
| 6 | loop: |
| 7 | %iv = phi i32 [ 0, %entry ], [ %inc, %loop ] |
| 8 | %inc = add i32 %iv, 1 |
| 9 | %exitcnd = icmp uge i32 %inc, 1024 |
| 10 | br i1 %exitcnd, label %exit, label %loop |
| 11 | |
| 12 | exit: |
| 13 | ret void |
| 14 | } |
| 15 | |
| 16 | ; CHECK-LABEL: @unroll_opt_for_size |
| 17 | ; CHECK: add |
| 18 | ; CHECK-NEXT: add |
| 19 | ; CHECK-NEXT: add |
| 20 | ; CHECK-NEXT: add |
| 21 | ; CHECK-NEXT: add |
| 22 | ; CHECK-NEXT: add |
| 23 | ; CHECK-NEXT: add |
| 24 | ; CHECK-NEXT: add |
| 25 | ; CHECK: icmp |
| 26 | |
| 27 | define void @unroll_default() nounwind { |
| 28 | entry: |
| 29 | br label %loop |
| 30 | |
| 31 | loop: |
| 32 | %iv = phi i32 [ 0, %entry ], [ %inc, %loop ] |
| 33 | %inc = add i32 %iv, 1 |
| 34 | %exitcnd = icmp uge i32 %inc, 1024 |
| 35 | br i1 %exitcnd, label %exit, label %loop |
| 36 | |
| 37 | exit: |
| 38 | ret void |
| 39 | } |
| 40 | |
| 41 | ; CHECK-LABEL: @unroll_default |
| 42 | ; CHECK: add |
| 43 | ; CHECK-NEXT: add |
| 44 | ; CHECK-NEXT: add |
| 45 | ; CHECK-NEXT: add |
| 46 | ; CHECK-NEXT: add |
| 47 | ; CHECK-NEXT: add |
| 48 | ; CHECK-NEXT: add |
| 49 | ; CHECK-NEXT: add |
| 50 | ; CHECK: icmp |
| 51 | |