; LLVM IR from ERGO-Code/HiGHS :: src/mip/HighsCliqueTable.ll (ZNK16HighsCliqueTable19resolveSubstitutionERNS_9CliqueVarE)

; 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"

%"struct.HighsCliqueTable::Substitution" = type { i32, %"struct.HighsCliqueTable::CliqueVar" }
%"struct.HighsCliqueTable::CliqueVar" = type { i32 }
%class.HighsCliqueTable = type { %"class.std::vector", %"class.std::vector.3", %"class.std::vector.8", %class.HighsHashTable, %"class.std::set", %"class.std::vector.26", %"class.std::vector.31", %"class.std::vector.26", %"class.std::vector", %"class.std::vector.26", %"class.std::vector.36", %"class.std::vector.26", %"class.std::vector.41", %"class.std::vector.46", %"class.std::vector.46", %"class.std::vector.51", %"class.std::vector.26", %class.HighsRandom, i32, i32, i32, i32, i8, i64 }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<HighsHashTree<int, int>, std::allocator<HighsHashTree<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsHashTree<int, int>, std::allocator<HighsHashTree<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsHashTree<int, int>, std::allocator<HighsHashTree<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsHashTree<int, int>, std::allocator<HighsHashTree<int, 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<HighsHashTree<int>, std::allocator<HighsHashTree<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsHashTree<int>, std::allocator<HighsHashTree<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsHashTree<int>, std::allocator<HighsHashTree<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsHashTree<int>, std::allocator<HighsHashTree<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.HighsHashTable = type { %"class.std::unique_ptr", %"class.std::unique_ptr.15", 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.14" }
%"struct.std::_Head_base.14" = type { ptr }
%"class.std::unique_ptr.15" = type { %"struct.std::__uniq_ptr_data.16" }
%"struct.std::__uniq_ptr_data.16" = type { %"class.std::__uniq_ptr_impl.17" }
%"class.std::__uniq_ptr_impl.17" = type { %"class.std::tuple.18" }
%"class.std::tuple.18" = type { %"struct.std::_Tuple_impl.19" }
%"struct.std::_Tuple_impl.19" = type { %"struct.std::_Head_base.22" }
%"struct.std::_Head_base.22" = type { ptr }
%"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.31" = type { %"struct.std::_Vector_base.32" }
%"struct.std::_Vector_base.32" = type { %"struct.std::_Vector_base<HighsCliqueTable::Clique, std::allocator<HighsCliqueTable::Clique>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsCliqueTable::Clique, std::allocator<HighsCliqueTable::Clique>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsCliqueTable::Clique, std::allocator<HighsCliqueTable::Clique>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsCliqueTable::Clique, std::allocator<HighsCliqueTable::Clique>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<HighsCliqueTable::CliqueVar, std::allocator<HighsCliqueTable::CliqueVar>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsCliqueTable::CliqueVar, std::allocator<HighsCliqueTable::CliqueVar>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsCliqueTable::CliqueVar, std::allocator<HighsCliqueTable::CliqueVar>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsCliqueTable::CliqueVar, std::allocator<HighsCliqueTable::CliqueVar>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.36" = type { %"struct.std::_Vector_base.37" }
%"struct.std::_Vector_base.37" = type { %"struct.std::_Vector_base<HighsCliqueTable::Substitution, std::allocator<HighsCliqueTable::Substitution>>::_Vector_impl" }
%"struct.std::_Vector_base<HighsCliqueTable::Substitution, std::allocator<HighsCliqueTable::Substitution>>::_Vector_impl" = type { %"struct.std::_Vector_base<HighsCliqueTable::Substitution, std::allocator<HighsCliqueTable::Substitution>>::_Vector_impl_data" }
%"struct.std::_Vector_base<HighsCliqueTable::Substitution, std::allocator<HighsCliqueTable::Substitution>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.41" = type { %"struct.std::_Vector_base.42" }
%"struct.std::_Vector_base.42" = type { %"struct.std::_Vector_base<std::pair<int, HighsCliqueTable::CliqueVar>, std::allocator<std::pair<int, HighsCliqueTable::CliqueVar>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, HighsCliqueTable::CliqueVar>, std::allocator<std::pair<int, HighsCliqueTable::CliqueVar>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, HighsCliqueTable::CliqueVar>, std::allocator<std::pair<int, HighsCliqueTable::CliqueVar>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, HighsCliqueTable::CliqueVar>, std::allocator<std::pair<int, HighsCliqueTable::CliqueVar>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.46" = type { %"struct.std::_Vector_base.47" }
%"struct.std::_Vector_base.47" = 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.51" = type { %"struct.std::_Vector_base.52" }
%"struct.std::_Vector_base.52" = 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.26" = type { %"struct.std::_Vector_base.27" }
%"struct.std::_Vector_base.27" = 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.HighsRandom = type { i64 }

; 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: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK16HighsCliqueTable19resolveSubstitutionERNS_9CliqueVarE(ptr noundef nonnull align 8 dereferenceable(488) %0, ptr noundef nonnull align 4 dereferenceable(4) %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"struct.HighsCliqueTable::Substitution", align 4
  %6 = alloca %"struct.HighsCliqueTable::CliqueVar", align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  br label %8

8:                                                ; preds = %39, %2
  %9 = getelementptr inbounds %class.HighsCliqueTable, ptr %7, i32 0, i32 9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = load i32, ptr %10, align 4
  %12 = and i32 %11, 2147483647
  %13 = zext i32 %12 to i64
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %13) #4
  %15 = load i32, ptr %14, align 4, !tbaa !9
  %16 = icmp ne i32 %15, 0
  br i1 %16, label %17, label %41

17:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %18 = getelementptr inbounds %class.HighsCliqueTable, ptr %7, i32 0, i32 10
  %19 = getelementptr inbounds %class.HighsCliqueTable, ptr %7, i32 0, i32 9
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = load i32, ptr %20, align 4
  %22 = and i32 %21, 2147483647
  %23 = zext i32 %22 to i64
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %23) #4
  %25 = load i32, ptr %24, align 4, !tbaa !9
  %26 = sub nsw i32 %25, 1
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef %27) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %5, ptr align 4 %28, i64 8, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load i32, ptr %29, align 4
  %31 = lshr i32 %30, 31
  %32 = icmp eq i32 %31, 1
  br i1 %32, label %33, label %35

33:                                               ; preds = %17
  %34 = getelementptr inbounds %"struct.HighsCliqueTable::Substitution", ptr %5, i32 0, i32 1
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %34, i64 4, i1 false), !tbaa.struct !13
  br label %39

35:                                               ; preds = %17
  %36 = getelementptr inbounds %"struct.HighsCliqueTable::Substitution", ptr %5, i32 0, i32 1
  %37 = call i32 @_ZNK16HighsCliqueTable9CliqueVar10complementEv(ptr noundef nonnull align 4 dereferenceable(4) %36)
  %38 = getelementptr inbounds %"struct.HighsCliqueTable::CliqueVar", ptr %6, i32 0, i32 0
  store i32 %37, ptr %38, align 4
  br label %39

39:                                               ; preds = %35, %33
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %40, ptr align 4 %6, i64 4, i1 false), !tbaa.struct !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %8, !llvm.loop !14

41:                                               ; preds = %8
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i32 @_ZNK16HighsCliqueTable9CliqueVar10complementEv(ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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}
!11 = !{i64 0, i64 4, !9, i64 4, i64 4, !12}
!12 = !{!7, !7, i64 0}
!13 = !{i64 0, i64 4, !12}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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"

%"struct.HighsCliqueTable::Substitution" = type { i32, %"struct.HighsCliqueTable::CliqueVar" }
%"struct.HighsCliqueTable::CliqueVar" = type { i32 }

; 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
define dso_local void @_ZNK16HighsCliqueTable19resolveSubstitutionERNS_9CliqueVarE(ptr noundef nonnull align 8 dereferenceable(488) %0, ptr nocapture noundef nonnull align 4 dereferenceable(4) %1) local_unnamed_addr #1 align 2 {
  %3 = alloca %"struct.HighsCliqueTable::Substitution", align 8
  %4 = getelementptr inbounds i8, ptr %0, i64 256
  %5 = load i32, ptr %1, align 4
  %6 = and i32 %5, 2147483647
  %7 = zext nneg i32 %6 to i64
  %8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %7) #3
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %.not7 = icmp eq i32 %9, 0
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %10 = getelementptr inbounds i8, ptr %0, i64 280
  %11 = getelementptr inbounds i8, ptr %3, i64 4
  br label %12

12:                                               ; preds = %.lr.ph, %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %13 = load i32, ptr %1, align 4
  %14 = and i32 %13, 2147483647
  %15 = zext nneg i32 %14 to i64
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %15) #3
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = add nsw i32 %17, -1
  %19 = sext i32 %18 to i64
  %20 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %10, i64 noundef %19) #3
  %21 = load i64, ptr %20, align 4
  store i64 %21, ptr %3, align 8
  %22 = load i32, ptr %1, align 4
  %.not6 = icmp sgt i32 %22, -1
  br i1 %.not6, label %26, label %23

23:                                               ; preds = %12
  %24 = lshr i64 %21, 32
  %25 = trunc nuw i64 %24 to i32
  br label %28

26:                                               ; preds = %12
  %27 = call i32 @_ZNK16HighsCliqueTable9CliqueVar10complementEv(ptr noundef nonnull align 4 dereferenceable(4) %11)
  br label %28

28:                                               ; preds = %26, %23
  %.sroa.0.0 = phi i32 [ %25, %23 ], [ %27, %26 ]
  store i32 %.sroa.0.0, ptr %1, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %29 = and i32 %.sroa.0.0, 2147483647
  %30 = zext nneg i32 %29 to i64
  %31 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %30) #3
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %.not = icmp eq i32 %32, 0
  br i1 %.not, label %._crit_edge, label %12, !llvm.loop !10

._crit_edge:                                      ; preds = %28, %2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i32 @_ZNK16HighsCliqueTable9CliqueVar10complementEv(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 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 = { 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass