; LLVM IR from facebook/redex :: libredex (ControlFlow)

; 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"

%"class.std::vector.223" = type { %"struct.std::_Vector_base.224" }
%"struct.std::_Vector_base.224" = type { %"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl" }
%"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl" = type { %"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.anon.607 = type { ptr }
%"class.std::function.608" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }

declare i32 @__gxx_personality_v0(...)

; 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
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3cfg16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIPSt6vectorIPNS_5BlockESaIS5_EESt4hashIS8_EEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector.223") align 8 %0, ptr noundef nonnull align 8 dereferenceable(160) %1, ptr noundef %2) #2 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i1, align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %class.anon.607, align 8
  %11 = alloca %"class.std::function.608", align 8
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8
  store i1 false, ptr %7, align 1
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %13 = invoke noundef i64 @_ZNK3cfg16ControlFlowGraph10num_blocksEv(ptr noundef nonnull align 8 dereferenceable(160) %12)
          to label %14 unwind label %19

14:                                               ; preds = %3
  invoke void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %13)
          to label %15 unwind label %19

15:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %16 = getelementptr inbounds %class.anon.607, ptr %10, i32 0, i32 0
  store ptr %0, ptr %16, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRKPSt6vectorIPN3cfg5BlockESaIS3_EEEEC2IRZNS1_16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIS6_St4hashIS6_EEEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(8) %10) #3
  invoke void @_ZN6sparta23WeakTopologicalOrderingIPSt6vectorIPN3cfg5BlockESaIS4_EESt4hashIS7_EE17visit_depth_firstESt8functionIFvRKS7_EE(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef %11)
          to label %17 unwind label %23

17:                                               ; preds = %15
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  store i1 true, ptr %7, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  %18 = load i1, ptr %7, align 1
  br i1 %18, label %28, label %27

19:                                               ; preds = %14, %3
  %20 = landingpad { ptr, i32 }
          cleanup
  %21 = extractvalue { ptr, i32 } %20, 0
  store ptr %21, ptr %8, align 8
  %22 = extractvalue { ptr, i32 } %20, 1
  store i32 %22, ptr %9, align 4
  br label %29

23:                                               ; preds = %15
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %8, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %9, align 4
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %29

27:                                               ; preds = %17
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %28

28:                                               ; preds = %27, %17
  ret void

29:                                               ; preds = %23, %19
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %30

30:                                               ; preds = %29
  %31 = load ptr, ptr %8, align 8
  %32 = load i32, ptr %9, align 4
  %33 = insertvalue { ptr, i32 } poison, ptr %31, 0
  %34 = insertvalue { ptr, i32 } %33, i32 %32, 1
  resume { ptr, i32 } %34
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK3cfg16ControlFlowGraph10num_blocksEv(ptr noundef nonnull align 8 dereferenceable(160)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6sparta23WeakTopologicalOrderingIPSt6vectorIPN3cfg5BlockESaIS4_EESt4hashIS7_EE17visit_depth_firstESt8functionIFvRKS7_EE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRKPSt6vectorIPN3cfg5BlockESaIS3_EEEEC2IRZNS1_16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIS6_St4hashIS6_EEEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

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 = { 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 #3 = { 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"}


; 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"

%"class.std::vector.223" = type { %"struct.std::_Vector_base.224" }
%"struct.std::_Vector_base.224" = type { %"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl" }
%"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl" = type { %"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<cfg::Block *, std::allocator<cfg::Block *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.anon.607 = type { ptr }
%"class.std::function.608" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }

declare i32 @__gxx_personality_v0(...)

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3cfg16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIPSt6vectorIPNS_5BlockESaIS5_EESt4hashIS8_EEE(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector.223") align 8 %0, ptr noundef nonnull align 8 dereferenceable(160) %1, ptr noundef %2) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %class.anon.607, align 8
  %5 = alloca %"class.std::function.608", align 8
  tail call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %6 = tail call noundef i64 @_ZNK3cfg16ControlFlowGraph10num_blocksEv(ptr noundef nonnull align 8 dereferenceable(160) %1)
  invoke void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %6)
          to label %7 unwind label %9

7:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  store ptr %0, ptr %4, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRKPSt6vectorIPN3cfg5BlockESaIS3_EEEEC2IRZNS1_16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIS6_St4hashIS6_EEEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  invoke void @_ZN6sparta23WeakTopologicalOrderingIPSt6vectorIPN3cfg5BlockESaIS4_EESt4hashIS7_EE17visit_depth_firstESt8functionIFvRKS7_EE(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull %5)
          to label %8 unwind label %11

8:                                                ; preds = %7
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  ret void

9:                                                ; preds = %3
  %10 = landingpad { ptr, i32 }
          cleanup
  br label %13

11:                                               ; preds = %7
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %13

13:                                               ; preds = %11, %9
  %.pn = phi { ptr, i32 } [ %12, %11 ], [ %10, %9 ]
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK3cfg16ControlFlowGraph10num_blocksEv(ptr noundef nonnull align 8 dereferenceable(160)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6sparta23WeakTopologicalOrderingIPSt6vectorIPN3cfg5BlockESaIS4_EESt4hashIS7_EE17visit_depth_firstESt8functionIFvRKS7_EE(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRKPSt6vectorIPN3cfg5BlockESaIS3_EEEEC2IRZNS1_16ControlFlowGraph10wto_chainsEN6sparta23WeakTopologicalOrderingIS6_St4hashIS6_EEEE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { 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 #3 = { 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"}


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