| Dan Gohman | 3c7d308 | 2009-09-11 18:01:28 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -aa-eval -print-all-alias-modref-info \ |
| Dan Gohman | b86a18b | 2009-05-27 01:48:27 +0000 | [diff] [blame] | 2 | ; RUN: |& grep {MayAlias: double\\* \[%\]p.0.i.0, double\\* \[%\]p3\$} |
| 3 | ; PR4267 |
| 4 | |
| 5 | ; %p3 is equal to %p.0.i.0 on the second iteration of the loop, |
| 6 | ; so MayAlias is needed. |
| 7 | |
| 8 | define void @foo([3 x [3 x double]]* noalias %p) { |
| 9 | entry: |
| 10 | %p3 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 0, i64 3 |
| 11 | br label %loop |
| 12 | |
| 13 | loop: |
| 14 | %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] |
| 15 | |
| 16 | %p.0.i.0 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 %i, i64 0 |
| 17 | |
| 18 | volatile store double 0.0, double* %p3 |
| 19 | volatile store double 0.1, double* %p.0.i.0 |
| 20 | |
| 21 | %i.next = add i64 %i, 1 |
| 22 | %cmp = icmp slt i64 %i.next, 3 |
| 23 | br i1 %cmp, label %loop, label %exit |
| 24 | |
| 25 | exit: |
| 26 | ret void |
| 27 | } |