; LLVM IR from facebook/redex :: libresource (Serialize)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"struct.android::ResTable_overlayable_policy_header" = type { %"struct.android::ResChunk_header", i32, i32 }
%"struct.android::ResChunk_header" = type { i16, i16, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZNK4arsc11OverlayInfo12compute_sizeEPN7android34ResTable_overlayable_policy_headerE(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef %1) #1 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %"struct.android::ResTable_overlayable_policy_header", ptr %9, i32 0, i32 2
  %11 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %11, ptr %6, align 4, !tbaa !15
  %12 = load i32, ptr %6, align 4, !tbaa !15
  %13 = icmp eq i32 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %26

15:                                               ; preds = %2
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %"struct.android::ResTable_overlayable_policy_header", ptr %16, i32 0, i32 0
  %18 = getelementptr inbounds %"struct.android::ResChunk_header", ptr %17, i32 0, i32 1
  %19 = load i16, ptr %18, align 2, !tbaa !16
  %20 = zext i16 %19 to i64
  %21 = load i32, ptr %6, align 4, !tbaa !15
  %22 = zext i32 %21 to i64
  %23 = mul i64 4, %22
  %24 = add i64 %20, %23
  %25 = trunc i64 %24 to i32
  store i32 %25, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %26

26:                                               ; preds = %15, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %27 = load i32, ptr %3, align 4
  ret i32 %27
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !13, i64 12}
!10 = !{!"_ZTSN7android34ResTable_overlayable_policy_headerE", !11, i64 0, !14, i64 8, !13, i64 12}
!11 = !{!"_ZTSN7android15ResChunk_headerE", !12, i64 0, !12, i64 2, !13, i64 4}
!12 = !{!"short", !7, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_ZTSN7android34ResTable_overlayable_policy_header11PolicyFlagsE", !7, i64 0}
!15 = !{!13, !13, i64 0}
!16 = !{!10, !12, i64 2}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef i32 @_ZNK4arsc11OverlayInfo12compute_sizeEPN7android34ResTable_overlayable_policy_headerE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(56) %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %1, i64 12
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %12, label %6

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %1, i64 2
  %8 = load i16, ptr %7, align 2, !tbaa !13
  %9 = zext i16 %8 to i32
  %10 = shl i32 %4, 2
  %11 = add i32 %10, %9
  br label %12

12:                                               ; preds = %2, %6
  %.0 = phi i32 [ %11, %6 ], [ 0, %2 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !11, i64 12}
!6 = !{!"_ZTSN7android34ResTable_overlayable_policy_headerE", !7, i64 0, !12, i64 8, !11, i64 12}
!7 = !{!"_ZTSN7android15ResChunk_headerE", !8, i64 0, !8, i64 2, !11, i64 4}
!8 = !{!"short", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"int", !9, i64 0}
!12 = !{!"_ZTSN7android34ResTable_overlayable_policy_header11PolicyFlagsE", !9, i64 0}
!13 = !{!6, !8, i64 2}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass