; LLVM IR from thekyria/elabtsaot2 :: emulator_hw/hardware_model/atom.ll (ZNK9elabtsaot4Atom12getEmbrCountEv)

; 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.elabtsaot::Atom" = type { %"class.elabtsaot::Node", %"class.std::vector", %"class.std::vector", %"class.std::vector.0" }
%"class.elabtsaot::Node" = type { double, double, double, double, i8, i8, i8, i8, double, double, double, double, i8, i8, i8, i8, [4 x i8], %"class.elabtsaot::Potentiometer", %"class.elabtsaot::Potentiometer", %"class.elabtsaot::Potentiometer", %"class.elabtsaot::Potentiometer" }
%"class.elabtsaot::Potentiometer" = type <{ ptr, double, double, i32, [4 x i8], double, i32, i32, i8, i8, [6 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<elabtsaot::EmulatorBranch, std::allocator<elabtsaot::EmulatorBranch>>::_Vector_impl" }
%"struct.std::_Vector_base<elabtsaot::EmulatorBranch, std::allocator<elabtsaot::EmulatorBranch>>::_Vector_impl" = type { %"struct.std::_Vector_base<elabtsaot::EmulatorBranch, std::allocator<elabtsaot::EmulatorBranch>>::_Vector_impl_data" }
%"struct.std::_Vector_base<elabtsaot::EmulatorBranch, std::allocator<elabtsaot::EmulatorBranch>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>

; 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 uwtable
define dso_local noundef i64 @_ZNK9elabtsaot4Atom12getEmbrCountEv(ptr noundef nonnull align 8 dereferenceable(392) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !9
  br label %6

6:                                                ; preds = %20, %1
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = getelementptr inbounds %"class.elabtsaot::Atom", ptr %5, i32 0, i32 3
  %9 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %8) #3
  %10 = icmp ne i64 %7, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %23

12:                                               ; preds = %6
  %13 = getelementptr inbounds %"class.elabtsaot::Atom", ptr %5, i32 0, i32 3
  %14 = load i64, ptr %4, align 8, !tbaa !9
  %15 = call noundef zeroext i1 @_ZNKSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %13, i64 noundef %14)
  br i1 %15, label %16, label %19

16:                                               ; preds = %12
  %17 = load i64, ptr %3, align 8, !tbaa !9
  %18 = add i64 %17, 1
  store i64 %18, ptr %3, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %16, %12
  br label %20

20:                                               ; preds = %19
  %21 = load i64, ptr %4, align 8, !tbaa !9
  %22 = add i64 %21, 1
  store i64 %22, ptr %4, align 8, !tbaa !9
  br label %6, !llvm.loop !11

23:                                               ; preds = %11
  %24 = load i64, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret i64 %24
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #1 align 2

attributes #0 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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 uwtable
define dso_local noundef i64 @_ZNK9elabtsaot4Atom12getEmbrCountEv(ptr noundef nonnull align 8 dereferenceable(392) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 352
  %3 = tail call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %2) #2
  %.not6 = icmp eq i64 %3, 0
  br i1 %.not6, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.05.lcssa = phi i64 [ 0, %1 ], [ %spec.select, %.lr.ph ]
  ret i64 %.05.lcssa

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.08 = phi i64 [ %6, %.lr.ph ], [ 0, %1 ]
  %.057 = phi i64 [ %spec.select, %.lr.ph ], [ 0, %1 ]
  %4 = tail call noundef zeroext i1 @_ZNKSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %2, i64 noundef %.08)
  %5 = zext i1 %4 to i64
  %spec.select = add i64 %.057, %5
  %6 = add i64 %.08, 1
  %7 = tail call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %2) #2
  %.not = icmp eq i64 %6, %7
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 #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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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