; LLVM IR from facebook/redex :: libredex/TypeUtil.ll (ZN4type11is_subclassEPK7DexTypeS2_)

; 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"

; 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

declare noundef ptr @_Z10type_classPK7DexType(ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4type11is_subclassEPK7DexTypeS2_(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %29, %2
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %30

13:                                               ; preds = %10
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = icmp eq ptr %14, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %13
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %31

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = call noundef ptr @_Z10type_classPK7DexType(ptr noundef %19)
  store ptr %20, ptr %8, align 8, !tbaa !5
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %24

23:                                               ; preds = %18
  store i32 3, ptr %7, align 4
  br label %27

24:                                               ; preds = %18
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = call noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176) %25)
  store ptr %26, ptr %6, align 8, !tbaa !5
  store i32 0, ptr %7, align 4
  br label %27

27:                                               ; preds = %24, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %28 = load i32, ptr %7, align 4
  switch i32 %28, label %33 [
    i32 0, label %29
    i32 3, label %30
  ]

29:                                               ; preds = %27
  br label %10, !llvm.loop !9

30:                                               ; preds = %27, %10
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %31

31:                                               ; preds = %30, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %32 = load i1, ptr %3, align 1
  ret i1 %32

33:                                               ; preds = %27
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 #3 = { mustprogress 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 #4 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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"

declare noundef ptr @_Z10type_classPK7DexType(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4type11is_subclassEPK7DexTypeS2_(ptr noundef readnone %0, ptr noundef %1) local_unnamed_addr #2 {
  %.not14 = icmp eq ptr %1, null
  br i1 %.not14, label %.thread, label %.lr.ph

.lr.ph:                                           ; preds = %2, %7
  %.0915 = phi ptr [ %8, %7 ], [ %1, %2 ]
  %3 = icmp eq ptr %.0915, %0
  br i1 %3, label %.thread, label %4

4:                                                ; preds = %.lr.ph
  %5 = tail call noundef ptr @_Z10type_classPK7DexType(ptr noundef nonnull %.0915)
  %6 = icmp eq ptr %5, null
  br i1 %6, label %.thread, label %7

7:                                                ; preds = %4
  %8 = tail call noundef ptr @_ZNK8DexClass15get_super_classEv(ptr noundef nonnull align 8 dereferenceable(176) %5)
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %.thread, label %.lr.ph

.thread:                                          ; preds = %.lr.ph, %7, %4, %2
  %.0 = phi i1 [ false, %2 ], [ %3, %4 ], [ %3, %7 ], [ %3, %.lr.ph ]
  ret i1 %.0
}

attributes #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 #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 = { mustprogress 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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass