; LLVM IR from ERGO-Code/HiGHS :: src/ipm/ipx/model.ll (ZN3ipx5Model16FindDenseColumnsEv)

; 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" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = 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::allocator.0" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.ipx::Model" = type { i8, i32, i32, i32, i32, %"class.ipx::SparseMatrix", %"class.ipx::SparseMatrix", %"class.std::valarray", %"class.std::valarray", %"class.std::valarray", %"class.std::valarray", double, double, i32, i32, i32, i32, i32, %"class.std::vector", %"class.std::vector.8", double, double, double, %"class.std::valarray", %"class.std::valarray", %"class.std::valarray", %"class.std::valarray", %"class.ipx::SparseMatrix", %"class.std::vector", %"class.std::valarray", %"class.std::valarray" }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.ipx::SparseMatrix" = type { i32, %"class.std::vector", %"class.std::vector", %"class.std::vector.3", %"class.std::vector", %"class.std::vector.3" }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = 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::valarray" = type { i64, ptr }

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

declare i32 @__gxx_personality_v0(...)

; 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 i32 @_ZNK3ipx12SparseMatrix5beginEi(ptr noundef nonnull align 8 dereferenceable(128), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3ipx5Model16FindDenseColumnsEv(ptr noundef nonnull align 8 dereferenceable(704) %0) #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator.0", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %14 = load ptr, ptr %2, align 8
  %15 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 3
  store i32 0, ptr %15, align 4, !tbaa !9
  %16 = call noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704) %14)
  %17 = add nsw i32 %16, 1
  %18 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 4
  store i32 %17, ptr %18, align 8, !tbaa !29
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  %19 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 2
  %20 = load i32, ptr %19, align 8, !tbaa !30
  %21 = sext i32 %20 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %21, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %22 unwind label %29

22:                                               ; preds = %1
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !31
  br label %23

23:                                               ; preds = %46, %22
  %24 = load i32, ptr %7, align 4, !tbaa !31
  %25 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 2
  %26 = load i32, ptr %25, align 8, !tbaa !30
  %27 = icmp slt i32 %24, %26
  br i1 %27, label %33, label %28

28:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %53

29:                                               ; preds = %1
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %5, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  br label %120

33:                                               ; preds = %23
  %34 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 5
  %35 = load i32, ptr %7, align 4, !tbaa !31
  %36 = invoke noundef i32 @_ZNK3ipx12SparseMatrix3endEi(ptr noundef nonnull align 8 dereferenceable(128) %34, i32 noundef %35)
          to label %37 unwind label %49

37:                                               ; preds = %33
  %38 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 5
  %39 = load i32, ptr %7, align 4, !tbaa !31
  %40 = invoke noundef i32 @_ZNK3ipx12SparseMatrix5beginEi(ptr noundef nonnull align 8 dereferenceable(128) %38, i32 noundef %39)
          to label %41 unwind label %49

41:                                               ; preds = %37
  %42 = sub nsw i32 %36, %40
  %43 = load i32, ptr %7, align 4, !tbaa !31
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %44) #5
  store i32 %42, ptr %45, align 4, !tbaa !31
  br label %46

46:                                               ; preds = %41
  %47 = load i32, ptr %7, align 4, !tbaa !31
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %7, align 4, !tbaa !31
  br label %23, !llvm.loop !32

49:                                               ; preds = %37, %33
  %50 = landingpad { ptr, i32 }
          cleanup
  %51 = extractvalue { ptr, i32 } %50, 0
  store ptr %51, ptr %5, align 8
  %52 = extractvalue { ptr, i32 } %50, 1
  store i32 %52, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %119

53:                                               ; preds = %28
  %54 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %55 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %54, ptr %55, align 8
  %56 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %57 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %56, ptr %57, align 8
  %58 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %59 = load ptr, ptr %58, align 8
  %60 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8
  invoke void @_Z7pdqsortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %59, ptr %61)
          to label %62 unwind label %69

62:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 1, ptr %10, align 4, !tbaa !31
  br label %63

63:                                               ; preds = %104, %62
  %64 = load i32, ptr %10, align 4, !tbaa !31
  %65 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 2
  %66 = load i32, ptr %65, align 8, !tbaa !30
  %67 = icmp slt i32 %64, %66
  br i1 %67, label %73, label %68

68:                                               ; preds = %63
  store i32 5, ptr %11, align 4
  br label %107

69:                                               ; preds = %112, %53
  %70 = landingpad { ptr, i32 }
          cleanup
  %71 = extractvalue { ptr, i32 } %70, 0
  store ptr %71, ptr %5, align 8
  %72 = extractvalue { ptr, i32 } %70, 1
  store i32 %72, ptr %6, align 4
  br label %119

73:                                               ; preds = %63
  %74 = load i32, ptr %10, align 4, !tbaa !31
  %75 = sext i32 %74 to i64
  %76 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %75) #5
  %77 = load i32, ptr %76, align 4, !tbaa !31
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  store i32 40, ptr %12, align 4, !tbaa !31
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  %78 = load i32, ptr %10, align 4, !tbaa !31
  %79 = sub nsw i32 %78, 1
  %80 = sext i32 %79 to i64
  %81 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %80) #5
  %82 = load i32, ptr %81, align 4, !tbaa !31
  %83 = mul nsw i32 10, %82
  store i32 %83, ptr %13, align 4, !tbaa !31
  %84 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %12, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %85 unwind label %99

85:                                               ; preds = %73
  %86 = load i32, ptr %84, align 4, !tbaa !31
  %87 = icmp sgt i32 %77, %86
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br i1 %87, label %88, label %103

88:                                               ; preds = %85
  %89 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 2
  %90 = load i32, ptr %89, align 8, !tbaa !30
  %91 = load i32, ptr %10, align 4, !tbaa !31
  %92 = sub nsw i32 %90, %91
  %93 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 3
  store i32 %92, ptr %93, align 4, !tbaa !9
  %94 = load i32, ptr %10, align 4, !tbaa !31
  %95 = sext i32 %94 to i64
  %96 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %95) #5
  %97 = load i32, ptr %96, align 4, !tbaa !31
  %98 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 4
  store i32 %97, ptr %98, align 8, !tbaa !29
  store i32 5, ptr %11, align 4
  br label %107

99:                                               ; preds = %73
  %100 = landingpad { ptr, i32 }
          cleanup
  %101 = extractvalue { ptr, i32 } %100, 0
  store ptr %101, ptr %5, align 8
  %102 = extractvalue { ptr, i32 } %100, 1
  store i32 %102, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %119

103:                                              ; preds = %85
  br label %104

104:                                              ; preds = %103
  %105 = load i32, ptr %10, align 4, !tbaa !31
  %106 = add nsw i32 %105, 1
  store i32 %106, ptr %10, align 4, !tbaa !31
  br label %63, !llvm.loop !34

107:                                              ; preds = %88, %68
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %108

108:                                              ; preds = %107
  %109 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 3
  %110 = load i32, ptr %109, align 4, !tbaa !9
  %111 = icmp sgt i32 %110, 1000
  br i1 %111, label %112, label %118

112:                                              ; preds = %108
  %113 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 3
  store i32 0, ptr %113, align 4, !tbaa !9
  %114 = invoke noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704) %14)
          to label %115 unwind label %69

115:                                              ; preds = %112
  %116 = add nsw i32 %114, 1
  %117 = getelementptr inbounds %"class.ipx::Model", ptr %14, i32 0, i32 4
  store i32 %116, ptr %117, align 8, !tbaa !29
  br label %118

118:                                              ; preds = %115, %108
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  ret void

119:                                              ; preds = %99, %69, %49
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  br label %120

120:                                              ; preds = %119, %29
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  br label %121

121:                                              ; preds = %120
  %122 = load ptr, ptr %5, align 8
  %123 = load i32, ptr %6, align 4
  %124 = insertvalue { ptr, i32 } poison, ptr %122, 0
  %125 = insertvalue { ptr, i32 } %124, i32 %123, 1
  resume { ptr, i32 } %125
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK3ipx12SparseMatrix3endEi(ptr noundef nonnull align 8 dereferenceable(128), i32 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z7pdqsortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) #3

; 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 nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #4

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 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 = { 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 = { 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, !12, i64 12}
!10 = !{!"_ZTSN3ipx5ModelE", !11, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16, !13, i64 24, !13, i64 152, !22, i64 280, !22, i64 296, !22, i64 312, !22, i64 328, !24, i64 344, !24, i64 352, !12, i64 360, !12, i64 364, !12, i64 368, !12, i64 372, !12, i64 376, !14, i64 384, !25, i64 408, !24, i64 432, !24, i64 440, !24, i64 448, !22, i64 456, !22, i64 472, !22, i64 488, !22, i64 504, !13, i64 520, !14, i64 648, !22, i64 672, !22, i64 688}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"_ZTSN3ipx12SparseMatrixE", !12, i64 0, !14, i64 8, !14, i64 32, !18, i64 56, !14, i64 80, !18, i64 104}
!14 = !{!"_ZTSSt6vectorIiSaIiEE", !15, i64 0}
!15 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!18 = !{!"_ZTSSt6vectorIdSaIdEE", !19, i64 0}
!19 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !21, i64 0}
!21 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!22 = !{!"_ZTSSt8valarrayIdE", !23, i64 0, !6, i64 8}
!23 = !{!"long", !7, i64 0}
!24 = !{!"double", !7, i64 0}
!25 = !{!"_ZTSSt6vectorIcSaIcEE", !26, i64 0}
!26 = !{!"_ZTSSt12_Vector_baseIcSaIcEE", !27, i64 0}
!27 = !{!"_ZTSNSt12_Vector_baseIcSaIcEE12_Vector_implE", !28, i64 0}
!28 = !{!"_ZTSNSt12_Vector_baseIcSaIcEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!29 = !{!10, !12, i64 16}
!30 = !{!10, !12, i64 8}
!31 = !{!12, !12, i64 0}
!32 = distinct !{!32, !33}
!33 = !{!"llvm.loop.mustprogress"}
!34 = distinct !{!34, !33}


; 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" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = 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::allocator.0" = type { i8 }

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

declare i32 @__gxx_personality_v0(...)

; 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 i32 @_ZNK3ipx12SparseMatrix5beginEi(ptr noundef nonnull align 8 dereferenceable(128), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3ipx5Model16FindDenseColumnsEv(ptr noundef nonnull align 8 dereferenceable(704) %0) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator.0", align 1
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = getelementptr inbounds i8, ptr %0, i64 12
  store i32 0, ptr %6, align 4, !tbaa !5
  %7 = tail call noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704) %0)
  %8 = add nsw i32 %7, 1
  %9 = getelementptr inbounds i8, ptr %0, i64 16
  store i32 %8, ptr %9, align 8, !tbaa !28
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load i32, ptr %10, align 8, !tbaa !29
  %12 = sext i32 %11 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %12, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %13 unwind label %21

13:                                               ; preds = %1
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  %14 = load i32, ptr %10, align 8, !tbaa !29
  %15 = icmp sgt i32 %14, 0
  br i1 %15, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %13
  %16 = getelementptr inbounds i8, ptr %0, i64 24
  br label %23

._crit_edge:                                      ; preds = %23, %13
  %17 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %18 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  invoke void @_Z7pdqsortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %17, ptr %18)
          to label %.preheader unwind label %32

.preheader:                                       ; preds = %._crit_edge
  %19 = load i32, ptr %10, align 8, !tbaa !29
  %20 = icmp sgt i32 %19, 1
  br i1 %20, label %.lr.ph21, label %.loopexit

21:                                               ; preds = %1
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  br label %58

23:                                               ; preds = %.lr.ph, %23
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %23 ]
  %24 = trunc nuw nsw i64 %indvars.iv to i32
  %25 = call noundef i32 @_ZNK3ipx12SparseMatrix3endEi(ptr noundef nonnull align 8 dereferenceable(128) %16, i32 noundef %24)
  %26 = call noundef i32 @_ZNK3ipx12SparseMatrix5beginEi(ptr noundef nonnull align 8 dereferenceable(128) %16, i32 noundef %24)
  %27 = sub nsw i32 %25, %26
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #5
  store i32 %27, ptr %28, align 4, !tbaa !30
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %29 = load i32, ptr %10, align 8, !tbaa !29
  %30 = sext i32 %29 to i64
  %31 = icmp slt i64 %indvars.iv.next, %30
  br i1 %31, label %23, label %._crit_edge, !llvm.loop !31

32:                                               ; preds = %._crit_edge
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  br label %58

.lr.ph21:                                         ; preds = %.preheader, %49
  %indvars.iv25 = phi i64 [ %indvars.iv.next26, %49 ], [ 1, %.preheader ]
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv25) #5
  %35 = load i32, ptr %34, align 4, !tbaa !30
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  store i32 40, ptr %4, align 4, !tbaa !30
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  %36 = add nsw i64 %indvars.iv25, -1
  %37 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %36) #5
  %38 = load i32, ptr %37, align 4, !tbaa !30
  %39 = mul nsw i32 %38, 10
  store i32 %39, ptr %5, align 4, !tbaa !30
  %40 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %41 = load i32, ptr %40, align 4, !tbaa !30
  %42 = icmp sgt i32 %35, %41
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  %43 = load i32, ptr %10, align 8, !tbaa !29
  br i1 %42, label %44, label %49

44:                                               ; preds = %.lr.ph21
  %45 = trunc nuw nsw i64 %indvars.iv25 to i32
  %46 = sub nsw i32 %43, %45
  store i32 %46, ptr %6, align 4, !tbaa !5
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv25) #5
  %48 = load i32, ptr %47, align 4, !tbaa !30
  store i32 %48, ptr %9, align 8, !tbaa !28
  br label %.loopexit

49:                                               ; preds = %.lr.ph21
  %indvars.iv.next26 = add nuw nsw i64 %indvars.iv25, 1
  %50 = sext i32 %43 to i64
  %51 = icmp slt i64 %indvars.iv.next26, %50
  br i1 %51, label %.lr.ph21, label %.loopexit, !llvm.loop !33

.loopexit:                                        ; preds = %49, %.preheader, %44
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = icmp sgt i32 %52, 1000
  br i1 %53, label %54, label %57

54:                                               ; preds = %.loopexit
  store i32 0, ptr %6, align 4, !tbaa !5
  %55 = call noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704) %0)
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %9, align 8, !tbaa !28
  br label %57

57:                                               ; preds = %54, %.loopexit
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  ret void

58:                                               ; preds = %32, %21
  %.pn = phi { ptr, i32 } [ %33, %32 ], [ %22, %21 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK3ipx5Model4rowsEv(ptr noundef nonnull align 8 dereferenceable(704)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK3ipx12SparseMatrix3endEi(ptr noundef nonnull align 8 dereferenceable(128), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z7pdqsortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #3

; 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 nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

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 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 = { 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 = { 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, !10, i64 12}
!6 = !{!"_ZTSN3ipx5ModelE", !7, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !11, i64 24, !11, i64 152, !21, i64 280, !21, i64 296, !21, i64 312, !21, i64 328, !23, i64 344, !23, i64 352, !10, i64 360, !10, i64 364, !10, i64 368, !10, i64 372, !10, i64 376, !12, i64 384, !24, i64 408, !23, i64 432, !23, i64 440, !23, i64 448, !21, i64 456, !21, i64 472, !21, i64 488, !21, i64 504, !11, i64 520, !12, i64 648, !21, i64 672, !21, i64 688}
!7 = !{!"bool", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTSN3ipx12SparseMatrixE", !10, i64 0, !12, i64 8, !12, i64 32, !17, i64 56, !12, i64 80, !17, i64 104}
!12 = !{!"_ZTSSt6vectorIiSaIiEE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!16 = !{!"any pointer", !8, i64 0}
!17 = !{!"_ZTSSt6vectorIdSaIdEE", !18, i64 0}
!18 = !{!"_ZTSSt12_Vector_baseIdSaIdEE", !19, i64 0}
!19 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE12_Vector_implE", !20, i64 0}
!20 = !{!"_ZTSNSt12_Vector_baseIdSaIdEE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!21 = !{!"_ZTSSt8valarrayIdE", !22, i64 0, !16, i64 8}
!22 = !{!"long", !8, i64 0}
!23 = !{!"double", !8, i64 0}
!24 = !{!"_ZTSSt6vectorIcSaIcEE", !25, i64 0}
!25 = !{!"_ZTSSt12_Vector_baseIcSaIcEE", !26, i64 0}
!26 = !{!"_ZTSNSt12_Vector_baseIcSaIcEE12_Vector_implE", !27, i64 0}
!27 = !{!"_ZTSNSt12_Vector_baseIcSaIcEE17_Vector_impl_dataE", !16, i64 0, !16, i64 8, !16, i64 16}
!28 = !{!6, !10, i64 16}
!29 = !{!6, !10, i64 8}
!30 = !{!10, !10, i64 0}
!31 = distinct !{!31, !32}
!32 = !{!"llvm.loop.mustprogress"}
!33 = distinct !{!33, !32}


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