; LLVM IR from VeloxChem/VeloxChem :: src/orbdata/AODensityMatrix.ll (ZN16CAODensityMatrixaSEOS_)

; 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.CAODensityMatrix = type <{ %"class.std::vector", i32, [4 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<CDenseMatrix, std::allocator<CDenseMatrix>>::_Vector_impl" }
%"struct.std::_Vector_base<CDenseMatrix, std::allocator<CDenseMatrix>>::_Vector_impl" = type { %"struct.std::_Vector_base<CDenseMatrix, std::allocator<CDenseMatrix>>::_Vector_impl_data" }
%"struct.std::_Vector_base<CDenseMatrix, std::allocator<CDenseMatrix>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(28) ptr @_ZN16CAODensityMatrixaSEOS_(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef nonnull align 8 dereferenceable(28) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8
  %7 = load ptr, ptr %5, align 8, !tbaa !5
  %8 = icmp eq ptr %6, %7
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store ptr %6, ptr %3, align 8
  br label %19

10:                                               ; preds = %2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds %class.CAODensityMatrix, ptr %11, i32 0, i32 0
  %13 = getelementptr inbounds %class.CAODensityMatrix, ptr %6, i32 0, i32 0
  %14 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorI12CDenseMatrixSaIS0_EEaSEOS2_(ptr noundef nonnull align 8 dereferenceable(24) %13, ptr noundef nonnull align 8 dereferenceable(24) %12) #1
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %class.CAODensityMatrix, ptr %15, i32 0, i32 1
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = getelementptr inbounds %class.CAODensityMatrix, ptr %6, i32 0, i32 1
  store i32 %17, ptr %18, align 8, !tbaa !11
  store ptr %6, ptr %3, align 8
  br label %19

19:                                               ; preds = %10, %9
  %20 = load ptr, ptr %3, align 8
  ret ptr %20
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorI12CDenseMatrixSaIS0_EEaSEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #0 align 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 = { 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 = !{!"_ZTS6denmat", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"_ZTS16CAODensityMatrix", !13, i64 0, !10, i64 24}
!13 = !{!"_ZTSSt6vectorI12CDenseMatrixSaIS0_EE", !14, i64 0}
!14 = !{!"_ZTSSt12_Vector_baseI12CDenseMatrixSaIS0_EE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseI12CDenseMatrixSaIS0_EE12_Vector_implE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseI12CDenseMatrixSaIS0_EE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}


; 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
define dso_local noundef nonnull align 8 dereferenceable(28) ptr @_ZN16CAODensityMatrixaSEOS_(ptr noundef nonnull returned align 8 dereferenceable(28) %0, ptr noundef nonnull align 8 dereferenceable(28) %1) local_unnamed_addr #0 align 2 {
  %3 = icmp eq ptr %0, %1
  br i1 %3, label %9, label %4

4:                                                ; preds = %2
  %5 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorI12CDenseMatrixSaIS0_EEaSEOS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #1
  %6 = getelementptr inbounds i8, ptr %1, i64 24
  %7 = load i32, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 %7, ptr %8, align 8, !tbaa !9
  br label %9

9:                                                ; preds = %2, %4
  ret ptr %0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorI12CDenseMatrixSaIS0_EEaSEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 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 = { 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 = !{!"_ZTS6denmat", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_ZTS16CAODensityMatrix", !11, i64 0, !6, i64 24}
!11 = !{!"_ZTSSt6vectorI12CDenseMatrixSaIS0_EE", !12, i64 0}
!12 = !{!"_ZTSSt12_Vector_baseI12CDenseMatrixSaIS0_EE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseI12CDenseMatrixSaIS0_EE12_Vector_implE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseI12CDenseMatrixSaIS0_EE17_Vector_impl_dataE", !15, i64 0, !15, i64 8, !15, i64 16}
!15 = !{!"any pointer", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass