; LLVM IR from opensim-org/opensim-core :: Vendors/lepton/src/ParsedExpression.ll (ZNK6Lepton16ParsedExpression11getRootNodeEv)

; 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.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator.0" = type { i8 }
%"class.Lepton::ParsedExpression" = type { %"class.Lepton::ExpressionTreeNode" }
%"class.Lepton::ExpressionTreeNode" = type { ptr, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl" }
%"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl" = type { %"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Lepton::ExpressionTreeNode, std::allocator<Lepton::ExpressionTreeNode>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [48 x i8], align 1
@_ZTIN6Lepton9ExceptionE = external dso_local constant { ptr, ptr, ptr }, align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNK6Lepton16ParsedExpression11getRootNodeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::allocator.0", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i1, align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  %8 = load ptr, ptr %2, align 8
  %9 = getelementptr inbounds %"class.Lepton::ParsedExpression", ptr %8, i32 0, i32 0
  %10 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK6Lepton18ExpressionTreeNode12getOperationEv(ptr noundef nonnull align 8 dereferenceable(32) %9)
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %28

12:                                               ; preds = %1
  store i1 true, ptr %7, align 1
  %13 = call ptr @__cxa_allocate_exception(i64 40) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %14 unwind label %16

14:                                               ; preds = %12
  invoke void @_ZN6Lepton9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(40) %13, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %15 unwind label %20

15:                                               ; preds = %14
  store i1 false, ptr %7, align 1
  invoke void @__cxa_throw(ptr %13, ptr @_ZTIN6Lepton9ExceptionE, ptr @_ZN6Lepton9ExceptionD2Ev) #5
          to label %35 unwind label %20

16:                                               ; preds = %12
  %17 = landingpad { ptr, i32 }
          cleanup
  %18 = extractvalue { ptr, i32 } %17, 0
  store ptr %18, ptr %5, align 8
  %19 = extractvalue { ptr, i32 } %17, 1
  store i32 %19, ptr %6, align 4
  br label %24

20:                                               ; preds = %15, %14
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %5, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br label %24

24:                                               ; preds = %20, %16
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #4
  %25 = load i1, ptr %7, align 1
  br i1 %25, label %26, label %27

26:                                               ; preds = %24
  call void @__cxa_free_exception(ptr %13) #4
  br label %27

27:                                               ; preds = %26, %24
  br label %30

28:                                               ; preds = %1
  %29 = getelementptr inbounds %"class.Lepton::ParsedExpression", ptr %8, i32 0, i32 0
  ret ptr %29

30:                                               ; preds = %27
  %31 = load ptr, ptr %5, align 8
  %32 = load i32, ptr %6, align 4
  %33 = insertvalue { ptr, i32 } poison, ptr %31, 0
  %34 = insertvalue { ptr, i32 } %33, i32 %32, 1
  resume { ptr, i32 } %34

35:                                               ; preds = %15
  unreachable
}

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNK6Lepton18ExpressionTreeNode12getOperationEv(ptr noundef nonnull align 8 dereferenceable(32)) #1

declare ptr @__cxa_allocate_exception(i64)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6Lepton9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN6Lepton9ExceptionD2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #3 align 2

declare void @__cxa_throw(ptr, ptr, ptr)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

declare void @__cxa_free_exception(ptr)

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 = { "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 willreturn memory(argmem: readwrite) }
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 }
attributes #5 = { noreturn }

!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"}


; 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 nonnull align 8 dereferenceable(32) ptr @_ZNK6Lepton16ParsedExpression11getRootNodeEv(ptr noundef nonnull returned align 8 dereferenceable(32) %0) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK6Lepton18ExpressionTreeNode12getOperationEv(ptr noundef nonnull align 8 dereferenceable(32) %0)
  ret ptr %0
}

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNK6Lepton18ExpressionTreeNode12getOperationEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1

declare i32 @__gxx_personality_v0(...)

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 = { "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" }

!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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,PostOrderFunctionAttrsPass,PromotePass,SROAPass,SimplifyCFGPass,TailCallElimPass