| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt -loops -gvn -S < %s | FileCheck %s |
| 2 | |
| 3 | ; This used to fail with ASAN enabled and if for some reason LoopInfo remained |
| 4 | ; available during GVN. In this case BasicAA will use LI but |
| 5 | ; MergeBlockIntoPredecessor in GVN failed to update LI. |
| 6 | |
| 7 | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| 8 | |
| 9 | %struct.wibble.1028 = type { i32, i32, %struct.barney.881 } |
| 10 | %struct.barney.881 = type { %struct.zot.882 } |
| 11 | %struct.zot.882 = type { [64 x i8] } |
| 12 | |
| 13 | ; Function Attrs: argmemonly |
| 14 | declare void @snork.1(i8*) local_unnamed_addr #0 |
| 15 | |
| 16 | define hidden zeroext i1 @eggs(%struct.wibble.1028* %arg, i1 %arg2) unnamed_addr align 2 { |
| 17 | bb: |
| 18 | br i1 %arg2, label %bb14, label %bb3 |
| 19 | |
| 20 | bb3: ; preds = %bb |
| 21 | %tmp = getelementptr inbounds %struct.wibble.1028, %struct.wibble.1028* %arg, i64 0, i32 2, i32 0, i32 0, i64 0 |
| 22 | %tmp5 = bitcast i8* %tmp to %struct.wibble.1028** |
| 23 | br label %bb6 |
| 24 | |
| 25 | bb6: ; preds = %bb12, %bb3 |
| 26 | br label %bb7 |
| 27 | |
| 28 | bb7: ; preds = %bb6 |
| 29 | br i1 undef, label %bb11, label %bb8 |
| 30 | |
| 31 | bb8: ; preds = %bb7 |
| 32 | %tmp9 = load %struct.wibble.1028*, %struct.wibble.1028** %tmp5, align 8 |
| 33 | ; CHECK: %tmp9 = load %struct.wibble.1028*, %struct.wibble.1028** %tmp5, align 8 |
| 34 | %tmp10 = bitcast %struct.wibble.1028* %tmp9 to i8* |
| 35 | br label %bb12 |
| 36 | |
| 37 | bb11: ; preds = %bb7 |
| 38 | br label %bb12 |
| 39 | |
| 40 | bb12: ; preds = %bb11, %bb8 |
| 41 | %tmp13 = phi i8* [ %tmp, %bb11 ], [ %tmp10, %bb8 ] |
| 42 | call void @snork.1(i8* %tmp13) #1 |
| 43 | br label %bb6 |
| 44 | |
| 45 | bb14: ; preds = %bb |
| 46 | ret i1 false |
| 47 | } |
| 48 | |
| 49 | attributes #0 = { argmemonly } |
| 50 | attributes #1 = { nounwind } |