; LLVM IR from simbody/simbody :: SimTKmath/Optimizers/src/IpOpt (IpAdaptiveMuUpdate)

; 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.std::_List_iterator" = type { ptr }
%"class.SimTKIpopt::AdaptiveMuUpdate" = type { %"class.SimTKIpopt::MuUpdate.base", double, double, double, i8, double, double, double, double, double, double, i32, i32, i32, i32, double, double, double, %"class.SimTKIpopt::SmartPtr.10", %"class.SimTKIpopt::SmartPtr.11", %"class.SimTKIpopt::SmartPtr.11", double, double, i32, %"class.std::__cxx11::list", double, %"class.SimTKIpopt::Filter", i8, i8, i8, %"class.SimTKIpopt::SmartPtr.20" }
%"class.SimTKIpopt::MuUpdate.base" = type { %"class.SimTKIpopt::AlgorithmStrategyObject.base" }
%"class.SimTKIpopt::AlgorithmStrategyObject.base" = type <{ %"class.SimTKIpopt::ReferencedObject.base", [4 x i8], %"class.SimTKIpopt::SmartPtr.6", %"class.SimTKIpopt::SmartPtr.7", %"class.SimTKIpopt::SmartPtr.8", %"class.SimTKIpopt::SmartPtr.9", i8 }>
%"class.SimTKIpopt::ReferencedObject.base" = type <{ ptr, i32 }>
%"class.SimTKIpopt::SmartPtr.6" = type { ptr }
%"class.SimTKIpopt::SmartPtr.7" = type { ptr }
%"class.SimTKIpopt::SmartPtr.8" = type { ptr }
%"class.SimTKIpopt::SmartPtr.9" = type { ptr }
%"class.SimTKIpopt::SmartPtr.10" = type { ptr }
%"class.SimTKIpopt::SmartPtr.11" = type { ptr }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<double, std::allocator<double>>::_List_impl" }
%"struct.std::__cxx11::_List_base<double, std::allocator<double>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"class.SimTKIpopt::Filter" = type { i32, %"class.std::__cxx11::list.15" }
%"class.std::__cxx11::list.15" = type { %"class.std::__cxx11::_List_base.16" }
%"class.std::__cxx11::_List_base.16" = type { %"struct.std::__cxx11::_List_base<SimTKIpopt::FilterEntry *, std::allocator<SimTKIpopt::FilterEntry *>>::_List_impl" }
%"struct.std::__cxx11::_List_base<SimTKIpopt::FilterEntry *, std::allocator<SimTKIpopt::FilterEntry *>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"class.SimTKIpopt::SmartPtr.20" = type { ptr }

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZN10SimTKIpopt3MaxEdd(double noundef, double noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIdES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_ZN10SimTKIpopt16AdaptiveMuUpdate11max_ref_valEv(ptr noundef nonnull align 8 dereferenceable(304) %0) #3 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca %"struct.std::_List_iterator", align 8
  %5 = alloca %"struct.std::_List_iterator", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %7 = getelementptr inbounds %"class.SimTKIpopt::AdaptiveMuUpdate", ptr %6, i32 0, i32 24
  %8 = call ptr @_ZNSt7__cxx114listIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #4
  %9 = getelementptr inbounds %"struct.std::_List_iterator", ptr %4, i32 0, i32 0
  store ptr %8, ptr %9, align 8
  %10 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %11 = load double, ptr %10, align 8, !tbaa !9
  store double %11, ptr %3, align 8, !tbaa !9
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br label %13

13:                                               ; preds = %18, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %14 = getelementptr inbounds %"class.SimTKIpopt::AdaptiveMuUpdate", ptr %6, i32 0, i32 24
  %15 = call ptr @_ZNSt7__cxx114listIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #4
  %16 = getelementptr inbounds %"struct.std::_List_iterator", ptr %5, i32 0, i32 0
  store ptr %15, ptr %16, align 8
  %17 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIdES2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br i1 %17, label %18, label %24

18:                                               ; preds = %13
  %19 = load double, ptr %3, align 8, !tbaa !9
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %21 = load double, ptr %20, align 8, !tbaa !9
  %22 = call noundef double @_ZN10SimTKIpopt3MaxEdd(double noundef %19, double noundef %21)
  store double %22, ptr %3, align 8, !tbaa !9
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br label %13, !llvm.loop !11

24:                                               ; preds = %13
  %25 = load double, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret double %25
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 = { 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 = { 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 #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 = !{!"double", !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"

%"struct.std::_List_iterator" = type { ptr }

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZN10SimTKIpopt3MaxEdd(double noundef, double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIdES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN10SimTKIpopt16AdaptiveMuUpdate11max_ref_valEv(ptr noundef nonnull align 8 dereferenceable(304) %0) local_unnamed_addr #2 align 2 {
  %2 = alloca %"struct.std::_List_iterator", align 8
  %3 = alloca %"struct.std::_List_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 224
  %5 = tail call ptr @_ZNSt7__cxx114listIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %5, ptr %2, align 8
  %6 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %7 = load double, ptr %6, align 8, !tbaa !5
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %9 = call ptr @_ZNSt7__cxx114listIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %9, ptr %3, align 8
  %10 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIdES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %10, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.03 = phi double [ %13, %.lr.ph ], [ %7, %1 ]
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIdEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = call noundef double @_ZN10SimTKIpopt3MaxEdd(double noundef %.03, double noundef %12)
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIdEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %15 = call ptr @_ZNSt7__cxx114listIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %15, ptr %3, align 8
  %16 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIdES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %16, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi double [ %7, %1 ], [ %13, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret double %.0.lcssa
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 = { 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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