| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-reduce -S \ |
| 2 | ; RUN: | grep "icmp eq i2 %lsr.iv.next, %xmp4344" |
| 3 | |
| 4 | ; Don't reverse the iteration if the rhs of the compare is defined |
| 5 | ; inside the loop. |
| 6 | |
| 7 | ; Provide legal integer types. |
| 8 | ; Declare i2 as legal so that IVUsers accepts to consider %indvar3451 |
| 9 | target datalayout = "n2:8:16:32:64" |
| 10 | |
| 11 | define void @Fill_Buffer(i2* %p) nounwind { |
| 12 | entry: |
| 13 | br label %bb8 |
| 14 | |
| 15 | bb8: |
| 16 | %indvar34 = phi i32 [ 0, %entry ], [ %indvar.next35, %bb8 ] |
| 17 | %indvar3451 = trunc i32 %indvar34 to i2 |
| 18 | %xmp4344 = load i2, i2* %p |
| 19 | %xmp104 = icmp eq i2 %indvar3451, %xmp4344 |
| 20 | %indvar.next35 = add i32 %indvar34, 1 |
| 21 | br i1 %xmp104, label %bb10, label %bb8 |
| 22 | |
| 23 | bb10: |
| 24 | unreachable |
| 25 | } |