stale-loop-info.ll
1.76 KB
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; RUN: opt -loops -gvn -S < %s | FileCheck %s
; This used to fail with ASAN enabled and if for some reason LoopInfo remained
; available during GVN. In this case BasicAA will use LI but
; MergeBlockIntoPredecessor in GVN failed to update LI.
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
%struct.wibble.1028 = type { i32, i32, %struct.barney.881 }
%struct.barney.881 = type { %struct.zot.882 }
%struct.zot.882 = type { [64 x i8] }
; Function Attrs: argmemonly
declare void @snork.1(i8*) local_unnamed_addr #0
define hidden zeroext i1 @eggs(%struct.wibble.1028* %arg, i1 %arg2) unnamed_addr align 2 {
bb:
br i1 %arg2, label %bb14, label %bb3
bb3: ; preds = %bb
%tmp = getelementptr inbounds %struct.wibble.1028, %struct.wibble.1028* %arg, i64 0, i32 2, i32 0, i32 0, i64 0
%tmp5 = bitcast i8* %tmp to %struct.wibble.1028**
br label %bb6
bb6: ; preds = %bb12, %bb3
br label %bb7
bb7: ; preds = %bb6
br i1 undef, label %bb11, label %bb8
bb8: ; preds = %bb7
%tmp9 = load %struct.wibble.1028*, %struct.wibble.1028** %tmp5, align 8
; CHECK: %tmp9 = load %struct.wibble.1028*, %struct.wibble.1028** %tmp5, align 8
%tmp10 = bitcast %struct.wibble.1028* %tmp9 to i8*
br label %bb12
bb11: ; preds = %bb7
br label %bb12
bb12: ; preds = %bb11, %bb8
%tmp13 = phi i8* [ %tmp, %bb11 ], [ %tmp10, %bb8 ]
call void @snork.1(i8* %tmp13) #1
br label %bb6
bb14: ; preds = %bb
ret i1 false
}
attributes #0 = { argmemonly }
attributes #1 = { nounwind }