; LLVM IR from ERGO-Code/HiGHS :: src/presolve/HighsSymmetry.ll (ZN22HighsSymmetryDetection11mergeOrbitsEii)

; 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 uwtable
define dso_local noundef zeroext i1 @_ZN22HighsSymmetryDetection11mergeOrbitsEii(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %1, i32 noundef %2) #2 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = load i32, ptr %7, align 4, !tbaa !9
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %16

15:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %65

16:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = call noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %11, i32 noundef %17)
  store i32 %18, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = call noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %11, i32 noundef %19)
  store i32 %20, ptr %9, align 4, !tbaa !9
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = load i32, ptr %9, align 4, !tbaa !9
  %23 = icmp eq i32 %21, %22
  br i1 %23, label %24, label %25

24:                                               ; preds = %16
  store i1 false, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %64

25:                                               ; preds = %16
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = load i32, ptr %9, align 4, !tbaa !9
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %29, label %46

29:                                               ; preds = %25
  %30 = load i32, ptr %8, align 4, !tbaa !9
  %31 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 10
  %32 = load i32, ptr %9, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %31, i64 noundef %33) #3
  store i32 %30, ptr %34, align 4, !tbaa !9
  %35 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 11
  %36 = load i32, ptr %9, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef %37) #3
  %39 = load i32, ptr %38, align 4, !tbaa !9
  %40 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 11
  %41 = load i32, ptr %8, align 4, !tbaa !9
  %42 = sext i32 %41 to i64
  %43 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %40, i64 noundef %42) #3
  %44 = load i32, ptr %43, align 4, !tbaa !9
  %45 = add nsw i32 %44, %39
  store i32 %45, ptr %43, align 4, !tbaa !9
  br label %63

46:                                               ; preds = %25
  %47 = load i32, ptr %9, align 4, !tbaa !9
  %48 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 10
  %49 = load i32, ptr %8, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %48, i64 noundef %50) #3
  store i32 %47, ptr %51, align 4, !tbaa !9
  %52 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 11
  %53 = load i32, ptr %8, align 4, !tbaa !9
  %54 = sext i32 %53 to i64
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %52, i64 noundef %54) #3
  %56 = load i32, ptr %55, align 4, !tbaa !9
  %57 = getelementptr inbounds %class.HighsSymmetryDetection, ptr %11, i32 0, i32 11
  %58 = load i32, ptr %9, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %57, i64 noundef %59) #3
  %61 = load i32, ptr %60, align 4, !tbaa !9
  %62 = add nsw i32 %61, %56
  store i32 %62, ptr %60, align 4, !tbaa !9
  br label %63

63:                                               ; preds = %46, %29
  store i1 true, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %64

64:                                               ; preds = %63, %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %65

65:                                               ; preds = %64, %15
  %66 = load i1, ptr %4, align 1
  ret i1 %66
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720), i32 noundef) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!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"

; 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 #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN22HighsSymmetryDetection11mergeOrbitsEii(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 align 2 {
  %4 = icmp eq i32 %1, %2
  br i1 %4, label %18, label %5

5:                                                ; preds = %3
  %6 = tail call noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %1)
  %7 = tail call noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720) %0, i32 noundef %2)
  %.not = icmp eq i32 %6, %7
  br i1 %.not, label %18, label %.sink.split

.sink.split:                                      ; preds = %5
  %8 = getelementptr inbounds i8, ptr %0, i64 224
  %9 = getelementptr inbounds i8, ptr %0, i64 248
  %. = tail call i32 @llvm.smax.i32(i32 %6, i32 %7)
  %.31 = tail call i32 @llvm.smin.i32(i32 %6, i32 %7)
  %10 = sext i32 %. to i64
  %11 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %10) #3
  store i32 %.31, ptr %11, align 4, !tbaa !5
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %10) #3
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = sext i32 %.31 to i64
  %15 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %14) #3
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = add nsw i32 %16, %13
  store i32 %17, ptr %15, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %.sink.split, %5, %3
  %.1 = phi i1 [ false, %3 ], [ false, %5 ], [ true, %.sink.split ]
  ret i1 %.1
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN22HighsSymmetryDetection8getOrbitEi(ptr noundef nonnull align 8 dereferenceable(720), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smin.i32(i32, i32) #2

attributes #0 = { 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 #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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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"}


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