; LLVM IR from ERGO-Code/HiGHS :: src/presolve/HPresolve.ll (ZN8presolve9HPresolve11countFillinEi)

; 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.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.presolve::HPresolve" = type { ptr, ptr, ptr, ptr, double, %"class.std::vector.20", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.20", %"class.std::vector.20", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.20", %"class.std::vector.20", %"class.std::vector.20", %"class.std::vector.20", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.25", %"class.std::vector.25", %class.HighsLinearSumBounds, %class.HighsLinearSumBounds, %"class.std::vector.5", %"class.std::vector.10", %"class.std::vector.5", %"class.std::vector.10", %"class.std::vector.35", %"class.std::unordered_map", %"class.std::set", %"class.std::vector.48", i8, i64, %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.10", %"class.std::vector.10", %"class.std::vector.53", i64, i32, i32, i32, i32, i32, i32, i8, i32, %class.HPresolveAnalysis }
%"class.std::vector.20" = type { %"struct.std::_Vector_base.21" }
%"struct.std::_Vector_base.21" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.25" = type { %"struct.std::_Vector_base.26" }
%"struct.std::_Vector_base.26" = type { %"struct.std::_Vector_base<std::set<int>, std::allocator<std::set<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::set<int>, std::allocator<std::set<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::set<int>, std::allocator<std::set<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::set<int>, std::allocator<std::set<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.HighsLinearSumBounds = type { %"class.std::vector.30", %"class.std::vector.30", %"class.std::vector.5", %"class.std::vector.5", %"class.std::vector.30", %"class.std::vector.30", %"class.std::vector.5", %"class.std::vector.5", ptr, ptr, ptr, ptr, ptr, ptr }
%"class.std::vector.30" = type { %"struct.std::_Vector_base.31" }
%"struct.std::_Vector_base.31" = type { %"struct.std::_Vector_base<HighsCDouble, std::allocator<HighsCDouble>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsCDouble, std::allocator<HighsCDouble>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsCDouble, std::allocator<HighsCDouble>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsCDouble, std::allocator<HighsCDouble>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.35" = type { %"struct.std::_Vector_base.36" }
%"struct.std::_Vector_base.36" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::vector.48" = type { %"struct.std::_Vector_base.49" }
%"struct.std::_Vector_base.49" = type { %"struct.std::_Vector_base<std::_Rb_tree_const_iterator<std::pair<int, int>>, std::allocator<std::_Rb_tree_const_iterator<std::pair<int, int>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::_Rb_tree_const_iterator<std::pair<int, int>>, std::allocator<std::_Rb_tree_const_iterator<std::pair<int, int>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::_Rb_tree_const_iterator<std::pair<int, int>>, std::allocator<std::_Rb_tree_const_iterator<std::pair<int, int>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::_Rb_tree_const_iterator<std::pair<int, int>>, std::allocator<std::_Rb_tree_const_iterator<std::pair<int, int>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.10" = type { %"struct.std::_Vector_base.11" }
%"struct.std::_Vector_base.11" = type { %"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned char, std::allocator<unsigned char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.53" = type { %"struct.std::_Vector_base.54" }
%"struct.std::_Vector_base.54" = type { %"struct.std::_Vector_base<unsigned short, std::allocator<unsigned short>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned short, std::allocator<unsigned short>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned short, std::allocator<unsigned short>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned short, std::allocator<unsigned short>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.HPresolveAnalysis = type { ptr, ptr, ptr, ptr, ptr, i32, i32, %"class.std::vector.58", i8, i8, i32, i32, i32, %struct.HighsPresolveLog }
%"class.std::vector.58" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%struct.HighsPresolveLog = type { %"class.std::vector.62" }
%"class.std::vector.62" = type { %"struct.std::_Vector_base.63" }
%"struct.std::_Vector_base.63" = type { %"struct.std::_Vector_base<HighsPresolveRuleLog, std::allocator<HighsPresolveRuleLog>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsPresolveRuleLog, std::allocator<HighsPresolveRuleLog>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsPresolveRuleLog, std::allocator<HighsPresolveRuleLog>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsPresolveRuleLog, std::allocator<HighsPresolveRuleLog>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; 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 noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN8presolve9HPresolve11findNonzeroEii(ptr noundef nonnull align 8 dereferenceable(1720), i32 noundef, i32 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN8presolve9HPresolve11countFillinEi(ptr noundef nonnull align 8 dereferenceable(1720) %0, i32 noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %10 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %11 = getelementptr inbounds %"class.presolve::HPresolve", ptr %10, i32 0, i32 18
  store ptr %11, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  %14 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %13, ptr %14, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #4
  %17 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %16, ptr %17, align 8
  br label %18

18:                                               ; preds = %36, %2
  %19 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #4
  br i1 %19, label %21, label %20

20:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  br label %38

21:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  %23 = load i32, ptr %22, align 4, !tbaa !9
  store i32 %23, ptr %9, align 4, !tbaa !9
  %24 = load i32, ptr %4, align 4, !tbaa !9
  %25 = getelementptr inbounds %"class.presolve::HPresolve", ptr %10, i32 0, i32 7
  %26 = load i32, ptr %9, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %27) #4
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = call noundef i32 @_ZN8presolve9HPresolve11findNonzeroEii(ptr noundef nonnull align 8 dereferenceable(1720) %10, i32 noundef %24, i32 noundef %29)
  %31 = icmp eq i32 %30, -1
  br i1 %31, label %32, label %35

32:                                               ; preds = %21
  %33 = load i32, ptr %5, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %5, align 4, !tbaa !9
  br label %35

35:                                               ; preds = %32, %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %36

36:                                               ; preds = %35
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  br label %18

38:                                               ; preds = %20
  %39 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret i32 %39
}

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 = { 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 #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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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.__gnu_cxx::__normal_iterator" = type { ptr }

; 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 noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN8presolve9HPresolve11findNonzeroEii(ptr noundef nonnull align 8 dereferenceable(1720), i32 noundef, i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN8presolve9HPresolve11countFillinEi(ptr noundef nonnull align 8 dereferenceable(1720) %0, i32 noundef %1) local_unnamed_addr #2 align 2 {
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = getelementptr inbounds i8, ptr %0, i64 352
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %6 = tail call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  store ptr %6, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %7 = tail call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  store ptr %7, ptr %4, align 8
  %8 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %9 = getelementptr inbounds i8, ptr %0, i64 88
  br label %10

._crit_edge:                                      ; preds = %10, %2
  %.0.lcssa = phi i32 [ 0, %2 ], [ %spec.select, %10 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  ret i32 %.0.lcssa

10:                                               ; preds = %.lr.ph, %10
  %.06 = phi i32 [ 0, %.lr.ph ], [ %spec.select, %10 ]
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %13) #4
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = call noundef i32 @_ZN8presolve9HPresolve11findNonzeroEii(ptr noundef nonnull align 8 dereferenceable(1720) %0, i32 noundef %1, i32 noundef %15)
  %17 = icmp eq i32 %16, -1
  %18 = zext i1 %17 to i32
  %spec.select = add nuw nsw i32 %.06, %18
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  %20 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br i1 %20, label %10, label %._crit_edge
}

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass