; LLVM IR from ERGO-Code/HiGHS :: src/presolve/HighsSymmetry.ll (ZN22HighsSymmetryDetection8getOrbitEi)

; 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.HighsSymmetryDetection = type { ptr, %"class.std::vector", %"class.std::vector", %"class.std::vector.3", %"class.std::vector.3", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector.8", %"class.std::vector", %"class.std::vector.13", %"class.std::vector", %"class.std::vector", %"class.std::vector.18", %"class.std::vector.18", %"class.std::vector.18", %"class.std::vector", %"class.std::vector", %class.HighsHashTable, %class.HighsHashTable.33, %class.HighsHashTable.33, i32, i32, i32, i32, i32, i32, i32, i32, i32, %"class.std::vector.42" }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<std::pair<int, unsigned int>, std::allocator<std::pair<int, unsigned int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, unsigned int>, std::allocator<std::pair<int, unsigned int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, unsigned int>, std::allocator<std::pair<int, unsigned int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, unsigned int>, std::allocator<std::pair<int, unsigned int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = 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.13" = type { %"struct.std::_Vector_base.14" }
%"struct.std::_Vector_base.14" = 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.18" = type { %"struct.std::_Vector_base.19" }
%"struct.std::_Vector_base.19" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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.HighsHashTable = type { %"class.std::unique_ptr", %"class.std::unique_ptr.25", i64, i64, i64 }
%"class.std::unique_ptr" = type { %"struct.std::__uniq_ptr_data" }
%"struct.std::__uniq_ptr_data" = type { %"class.std::__uniq_ptr_impl" }
%"class.std::__uniq_ptr_impl" = type { %"class.std::tuple" }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Head_base.24" }
%"struct.std::_Head_base.24" = type { ptr }
%"class.std::unique_ptr.25" = type { %"struct.std::__uniq_ptr_data.26" }
%"struct.std::__uniq_ptr_data.26" = type { %"class.std::__uniq_ptr_impl.27" }
%"class.std::__uniq_ptr_impl.27" = type { %"class.std::tuple.28" }
%"class.std::tuple.28" = type { %"struct.std::_Tuple_impl.29" }
%"struct.std::_Tuple_impl.29" = type { %"struct.std::_Head_base.32" }
%"struct.std::_Head_base.32" = type { ptr }
%class.HighsHashTable.33 = type { %"class.std::unique_ptr.34", %"class.std::unique_ptr.25", i64, i64, i64 }
%"class.std::unique_ptr.34" = type { %"struct.std::__uniq_ptr_data.35" }
%"struct.std::__uniq_ptr_data.35" = type { %"class.std::__uniq_ptr_impl.36" }
%"class.std::__uniq_ptr_impl.36" = type { %"class.std::tuple.37" }
%"class.std::tuple.37" = type { %"struct.std::_Tuple_impl.38" }
%"struct.std::_Tuple_impl.38" = type { %"struct.std::_Head_base.41" }
%"struct.std::_Head_base.41" = type { ptr }
%"class.std::vector.42" = type { %"struct.std::_Vector_base.43" }
%"struct.std::_Vector_base.43" = type { %"struct.std::_Vector_base<HighsSymmetryDetection::Node, std::allocator<HighsSymmetryDetection::Node>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsSymmetryDetection::Node, std::allocator<HighsSymmetryDetection::Node>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsSymmetryDetection::Node, std::allocator<HighsSymmetryDetection::Node>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsSymmetryDetection::Node, std::allocator<HighsSymmetryDetection::Node>>::_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 nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %8 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 8
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = sext i32 %9 to i64
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %10) #3
  %12 = load i32, ptr %11, align 4, !tbaa !9
  store i32 %12, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %13 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 10
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %15) #3
  %17 = load i32, ptr %16, align 4, !tbaa !9
  store i32 %17, ptr %6, align 4, !tbaa !9
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 10
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %21) #3
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = icmp ne i32 %18, %23
  br i1 %24, label %25, label %58

25:                                               ; preds = %2
  br label %26

26:                                               ; preds = %34, %25
  %27 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 17
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %27, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %28 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %28, ptr %5, align 4, !tbaa !9
  %29 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 10
  %30 = load i32, ptr %6, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %29, i64 noundef %31) #3
  %33 = load i32, ptr %32, align 4, !tbaa !9
  store i32 %33, ptr %6, align 4, !tbaa !9
  br label %34

34:                                               ; preds = %26
  %35 = load i32, ptr %6, align 4, !tbaa !9
  %36 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 10
  %37 = load i32, ptr %6, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %36, i64 noundef %38) #3
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = icmp ne i32 %35, %40
  br i1 %41, label %26, label %42, !llvm.loop !11

42:                                               ; preds = %34
  br label %43

43:                                               ; preds = %53, %42
  %44 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 17
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %44) #3
  %46 = load i32, ptr %45, align 4, !tbaa !9
  store i32 %46, ptr %5, align 4, !tbaa !9
  %47 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 17
  call void @_ZNSt6vectorIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(24) %47) #3
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 10
  %50 = load i32, ptr %5, align 4, !tbaa !9
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %49, i64 noundef %51) #3
  store i32 %48, ptr %52, align 4, !tbaa !9
  br label %53

53:                                               ; preds = %43
  %54 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %7, i32 0, i32 17
  %55 = call noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %54) #3
  %56 = xor i1 %55, true
  br i1 %56, label %43, label %57, !llvm.loop !13

57:                                               ; preds = %53
  br label %58

58:                                               ; preds = %57, %2
  %59 = load i32, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %59
}

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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

; 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 nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %1) local_unnamed_addr #2 align 2 {
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 176
  %5 = sext i32 %1 to i64
  %6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %5) #3
  %7 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %7, ptr %3, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 224
  %9 = sext i32 %7 to i64
  %10 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %9) #3
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %12) #3
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %.not = icmp eq i32 %11, %14
  br i1 %.not, label %.loopexit, label %.preheader12

.preheader12:                                     ; preds = %2
  %15 = getelementptr inbounds i8, ptr %0, i64 392
  br label %16

16:                                               ; preds = %.preheader12, %16
  %.0 = phi i32 [ %19, %16 ], [ %11, %.preheader12 ]
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %15, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i32 %.0, ptr %3, align 4, !tbaa !5
  %17 = sext i32 %.0 to i64
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %17) #3
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %20) #3
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %.not11 = icmp eq i32 %19, %22
  br i1 %.not11, label %.preheader, label %16, !llvm.loop !9

.preheader:                                       ; preds = %16, %.preheader
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #3
  %24 = load i32, ptr %23, align 4, !tbaa !5
  store i32 %24, ptr %3, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #3
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %26) #3
  store i32 %19, ptr %27, align 4, !tbaa !5
  %28 = call noundef zeroext i1 @_ZNKSt6vectorIiSaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %15) #3
  br i1 %28, label %.loopexit, label %.preheader, !llvm.loop !11

.loopexit:                                        ; preds = %.preheader, %2
  %.1 = phi i32 [ %11, %2 ], [ %19, %.preheader ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  ret i32 %.1
}

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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