1; RUN: opt -passes='require<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 7target 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 14declare void @snork.1(ptr) local_unnamed_addr #0 15 16define hidden zeroext i1 @eggs(ptr %arg, i1 %arg2, i1 %arg3) unnamed_addr align 2 { 17bb: 18 br i1 %arg2, label %bb14, label %bb3 19 20bb3: ; preds = %bb 21 %tmp = getelementptr inbounds %struct.wibble.1028, ptr %arg, i64 0, i32 2, i32 0, i32 0, i64 0 22 br label %bb6 23 24bb6: ; preds = %bb12, %bb3 25 br label %bb7 26 27bb7: ; preds = %bb6 28 br i1 %arg3, label %bb11, label %bb8 29 30bb8: ; preds = %bb7 31 %tmp9 = load ptr, ptr %tmp, align 8 32; CHECK: %tmp9 = load ptr, ptr %tmp, align 8 33 br label %bb12 34 35bb11: ; preds = %bb7 36 br label %bb12 37 38bb12: ; preds = %bb11, %bb8 39 %tmp13 = phi ptr [ %tmp, %bb11 ], [ %tmp9, %bb8 ] 40 call void @snork.1(ptr %tmp13) #1 41 br label %bb6 42 43bb14: ; preds = %bb 44 ret i1 false 45} 46 47attributes #0 = { argmemonly } 48attributes #1 = { nounwind } 49