; LLVM IR from ERGO-Code/HiGHS :: src/mip/HighsCliqueTable.ll (ZNK16HighsCliqueTable19resolveSubstitutionERiRdS1_)

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZNK16HighsCliqueTable19resolveSubstitutionERiRdS1_(ptr noundef nonnull align 8 dereferenceable(488) %0, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %"struct.HighsCliqueTable::Substitution", align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8
  br label %11

11:                                               ; preds = %44, %4
  %12 = getelementptr inbounds %class.HighsCliqueTable, ptr %10, i32 0, i32 9
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %15) #3
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = icmp ne i32 %17, 0
  br i1 %18, label %19, label %49

19:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %20 = getelementptr inbounds %class.HighsCliqueTable, ptr %10, i32 0, i32 10
  %21 = getelementptr inbounds %class.HighsCliqueTable, ptr %10, i32 0, i32 9
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %21, i64 noundef %24) #3
  %26 = load i32, ptr %25, align 4, !tbaa !9
  %27 = sub nsw i32 %26, 1
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %20, i64 noundef %28) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 4 %29, i64 8, i1 false), !tbaa.struct !11
  %30 = getelementptr inbounds %"struct.HighsCliqueTable::Substitution", ptr %9, i32 0, i32 1
  %31 = load i32, ptr %30, align 4
  %32 = lshr i32 %31, 31
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %34, label %44

34:                                               ; preds = %19
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = load double, ptr %35, align 8, !tbaa !13
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  %38 = load double, ptr %37, align 8, !tbaa !13
  %39 = fadd double %38, %36
  store double %39, ptr %37, align 8, !tbaa !13
  %40 = load ptr, ptr %7, align 8, !tbaa !5
  %41 = load double, ptr %40, align 8, !tbaa !13
  %42 = fneg double %41
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  store double %42, ptr %43, align 8, !tbaa !13
  br label %44

44:                                               ; preds = %34, %19
  %45 = getelementptr inbounds %"struct.HighsCliqueTable::Substitution", ptr %9, i32 0, i32 1
  %46 = load i32, ptr %45, align 4
  %47 = and i32 %46, 2147483647
  %48 = load ptr, ptr %6, align 8, !tbaa !5
  store i32 %47, ptr %48, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %11, !llvm.loop !15

49:                                               ; preds = %11
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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 = !{!14, !14, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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"

; 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 #0 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 #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZNK16HighsCliqueTable19resolveSubstitutionERiRdS1_(ptr noundef nonnull align 8 dereferenceable(488) %0, ptr nocapture noundef nonnull align 4 dereferenceable(4) %1, ptr nocapture noundef nonnull align 8 dereferenceable(8) %2, ptr nocapture noundef nonnull align 8 dereferenceable(8) %3) local_unnamed_addr #0 align 2 {
  %5 = getelementptr inbounds i8, ptr %0, i64 256
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = sext i32 %6 to i64
  %8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %7) #1
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %.not9 = icmp eq i32 %9, 0
  br i1 %.not9, label %._crit_edge, label %.lr.ph

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

11:                                               ; preds = %.lr.ph, %26
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %13) #1
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = add nsw i32 %15, -1
  %17 = sext i32 %16 to i64
  %18 = tail call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt6vectorIN16HighsCliqueTable12SubstitutionESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %10, i64 noundef %17) #1
  %.sroa.3.0..sroa_idx = getelementptr inbounds i8, ptr %18, i64 4
  %.sroa.3.0.copyload = load i32, ptr %.sroa.3.0..sroa_idx, align 4, !tbaa !9
  %19 = icmp sgt i32 %.sroa.3.0.copyload, -1
  br i1 %19, label %20, label %26

20:                                               ; preds = %11
  %21 = load double, ptr %2, align 8, !tbaa !10
  %22 = load double, ptr %3, align 8, !tbaa !10
  %23 = fadd double %21, %22
  store double %23, ptr %3, align 8, !tbaa !10
  %24 = load double, ptr %2, align 8, !tbaa !10
  %25 = fneg double %24
  store double %25, ptr %2, align 8, !tbaa !10
  br label %26

26:                                               ; preds = %20, %11
  %27 = and i32 %.sroa.3.0.copyload, 2147483647
  store i32 %27, ptr %1, align 4, !tbaa !5
  %28 = zext nneg i32 %27 to i64
  %29 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %28) #1
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %.not = icmp eq i32 %30, 0
  br i1 %.not, label %._crit_edge, label %11, !llvm.loop !12

._crit_edge:                                      ; preds = %26, %4
  ret void
}

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


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