; LLVM IR from facebook/redex :: libredex/BigBlocks.ll (ZN10big_blocks14get_big_blocksERN3cfg16ControlFlowGraphE)

; 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.boost::optional" = type { %"class.boost::optional_detail::optional_base" }
%"class.boost::optional_detail::optional_base" = type { i8, [7 x i8], %"class.boost::optional_detail::aligned_storage" }
%"class.boost::optional_detail::aligned_storage" = type { %"union.boost::optional_detail::aligned_storage<big_blocks::BigBlock>::dummy_u" }
%"union.boost::optional_detail::aligned_storage<big_blocks::BigBlock>::dummy_u" = type { [24 x i8] }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl" }
%"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl" = type { %"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl_data" }
%"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.__gnu_cxx::__normal_iterator.23" = type { ptr }

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 uwtable
declare dso_local void @_ZN10big_blocks13get_big_blockEPN3cfg5BlockE(ptr dead_on_unwind noalias writable sret(%"class.boost::optional") align 8, ptr noundef) #1

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10big_blocks14get_big_blocksERN3cfg16ControlFlowGraphE(ptr dead_on_unwind noalias writable sret(%"class.std::vector.5") align 8 %0, ptr noundef nonnull align 8 dereferenceable(160) %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::vector.0", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.__gnu_cxx::__normal_iterator.23", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.23", align 8
  %12 = alloca ptr, align 8
  %13 = alloca %"class.boost::optional", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #6
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZNK3cfg16ControlFlowGraph6blocksEv(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8 %7, ptr noundef nonnull align 8 dereferenceable(160) %14)
          to label %15 unwind label %25

15:                                               ; preds = %2
  store ptr %7, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = call ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #6
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.23", ptr %10, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = call ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #6
  %21 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.23", ptr %11, i32 0, i32 0
  store ptr %20, ptr %21, align 8
  br label %22

22:                                               ; preds = %48, %15
  %23 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #6
  br i1 %23, label %29, label %24

24:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %52

25:                                               ; preds = %2
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %8, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %9, align 4
  br label %51

29:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #6
  %31 = load ptr, ptr %30, align 8, !tbaa !5
  store ptr %31, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %13) #6
  %32 = load ptr, ptr %12, align 8, !tbaa !5
  invoke void @_ZN10big_blocks13get_big_blockEPN3cfg5BlockE(ptr dead_on_unwind writable sret(%"class.boost::optional") align 8 %13, ptr noundef %32)
          to label %33 unwind label %39

33:                                               ; preds = %29
  %34 = call noundef zeroext i1 @_ZNK5boost8optionalIN10big_blocks8BigBlockEEcvbEv(ptr noundef nonnull align 8 dereferenceable(32) %13) #6
  br i1 %34, label %35, label %47

35:                                               ; preds = %33
  %36 = invoke noundef nonnull align 8 dereferenceable(24) ptr @_ZNR5boost8optionalIN10big_blocks8BigBlockEEdeEv(ptr noundef nonnull align 8 dereferenceable(32) %13)
          to label %37 unwind label %43

37:                                               ; preds = %35
  invoke void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %36)
          to label %38 unwind label %43

38:                                               ; preds = %37
  br label %47

39:                                               ; preds = %29
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %8, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %9, align 4
  br label %50

43:                                               ; preds = %37, %35
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %8, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %9, align 4
  call void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #6
  br label %50

47:                                               ; preds = %38, %33
  call void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %48

48:                                               ; preds = %47
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #6
  br label %22

50:                                               ; preds = %43, %39
  call void @llvm.lifetime.end.p0(i64 32, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  br label %51

51:                                               ; preds = %50, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #6
  br label %56

52:                                               ; preds = %24
  store i1 true, ptr %5, align 1
  %53 = load i1, ptr %5, align 1
  br i1 %53, label %55, label %54

54:                                               ; preds = %52
  call void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #6
  br label %55

55:                                               ; preds = %54, %52
  ret void

56:                                               ; preds = %51
  %57 = load ptr, ptr %8, align 8
  %58 = load i32, ptr %9, align 4
  %59 = insertvalue { ptr, i32 } poison, ptr %57, 0
  %60 = insertvalue { ptr, i32 } %59, i32 %58, 1
  resume { ptr, i32 } %60
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare void @_ZNK3cfg16ControlFlowGraph6blocksEv(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8, ptr noundef nonnull align 8 dereferenceable(160)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5boost8optionalIN10big_blocks8BigBlockEEcvbEv(ptr noundef nonnull align 8 dereferenceable(32)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNR5boost8optionalIN10big_blocks8BigBlockEEdeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { "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 = { inlinehint 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 #5 = { alwaysinline 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 #6 = { 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.boost::optional" = type { %"class.boost::optional_detail::optional_base" }
%"class.boost::optional_detail::optional_base" = type { i8, [7 x i8], %"class.boost::optional_detail::aligned_storage" }
%"class.boost::optional_detail::aligned_storage" = type { %"union.boost::optional_detail::aligned_storage<big_blocks::BigBlock>::dummy_u" }
%"union.boost::optional_detail::aligned_storage<big_blocks::BigBlock>::dummy_u" = type { [24 x i8] }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl" }
%"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl" = type { %"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl_data" }
%"struct.std::_Vector_base<big_blocks::BigBlock, std::allocator<big_blocks::BigBlock>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.__gnu_cxx::__normal_iterator.23" = type { ptr }

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 uwtable
declare dso_local void @_ZN10big_blocks13get_big_blockEPN3cfg5BlockE(ptr dead_on_unwind noalias writable sret(%"class.boost::optional") align 8, ptr noundef) local_unnamed_addr #1

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10big_blocks14get_big_blocksERN3cfg16ControlFlowGraphE(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector.5") align 8 %0, ptr noundef nonnull align 8 dereferenceable(160) %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector.0", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator.23", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.23", align 8
  %6 = alloca %"class.boost::optional", align 8
  tail call void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  invoke void @_ZNK3cfg16ControlFlowGraph6blocksEv(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.0") align 8 %3, ptr noundef nonnull align 8 dereferenceable(160) %1)
          to label %7 unwind label %11

7:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %8 = call ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  store ptr %8, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  %9 = call ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  store ptr %9, ptr %5, align 8
  %10 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #6
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %24, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  ret void

11:                                               ; preds = %2
  %12 = landingpad { ptr, i32 }
          cleanup
  br label %28

.lr.ph:                                           ; preds = %7, %24
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #6
  invoke void @_ZN10big_blocks13get_big_blockEPN3cfg5BlockE(ptr dead_on_unwind nonnull writable sret(%"class.boost::optional") align 8 %6, ptr noundef %14)
          to label %15 unwind label %20

15:                                               ; preds = %.lr.ph
  %16 = call noundef zeroext i1 @_ZNK5boost8optionalIN10big_blocks8BigBlockEEcvbEv(ptr noundef nonnull align 8 dereferenceable(32) %6) #6
  br i1 %16, label %17, label %24

17:                                               ; preds = %15
  %18 = invoke noundef nonnull align 8 dereferenceable(24) ptr @_ZNR5boost8optionalIN10big_blocks8BigBlockEEdeEv(ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %19 unwind label %22

19:                                               ; preds = %17
  invoke void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %18)
          to label %24 unwind label %22

20:                                               ; preds = %.lr.ph
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %27

22:                                               ; preds = %19, %17
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #6
  br label %27

24:                                               ; preds = %19, %15
  call void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #6
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  %26 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #6
  br i1 %26, label %.lr.ph, label %._crit_edge

27:                                               ; preds = %22, %20
  %.pn = phi { ptr, i32 } [ %23, %22 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @_ZNSt6vectorIPN3cfg5BlockESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  br label %28

28:                                               ; preds = %27, %11
  %.pn.pn = phi { ptr, i32 } [ %.pn, %27 ], [ %12, %11 ]
  call void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #6
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare void @_ZNK3cfg16ControlFlowGraph6blocksEv(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8, ptr noundef nonnull align 8 dereferenceable(160)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN3cfg5BlockESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK5boost8optionalIN10big_blocks8BigBlockEEcvbEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNR5boost8optionalIN10big_blocks8BigBlockEEdeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5boost15optional_detail13optional_baseIN10big_blocks8BigBlockEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPPN3cfg5BlockESt6vectorIS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIN10big_blocks8BigBlockESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { "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 = { inlinehint 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 #5 = { alwaysinline 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 #6 = { 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,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass