; LLVM IR from generalized-intelligence/GAAS :: deprecated/algorithms/GlobalOptimizationGraph_GTSAM/Thirdparty/g2o/g2o/core/pa_ecb8675e (ZN3g2o18ParameterContainer5clearEv)

; 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::_Rb_tree_iterator" = type { ptr }
%"class.g2o::ParameterContainer" = type <{ ptr, %"class.std::map", i8, [7 x i8] }>
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, g2o::Parameter *>, std::_Select1st<std::pair<const int, g2o::Parameter *>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, g2o::Parameter *>, std::_Select1st<std::pair<const int, g2o::Parameter *>>, std::less<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 }
%"struct.std::pair" = type { i32, ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3g2o18ParameterContainer5clearEv(ptr noundef nonnull align 8 dereferenceable(57) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  %7 = getelementptr inbounds %"class.g2o::ParameterContainer", ptr %6, i32 0, i32 2
  %8 = load i8, ptr %7, align 8, !tbaa !9, !range !21, !noundef !22
  %9 = trunc i8 %8 to i1
  br i1 %9, label %11, label %10

10:                                               ; preds = %1
  br label %36

11:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %12 = getelementptr inbounds i8, ptr %6, i64 8
  %13 = call ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %12) #2
  %14 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %3, i32 0, i32 0
  store ptr %13, ptr %14, align 8
  br label %15

15:                                               ; preds = %31, %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %16 = getelementptr inbounds i8, ptr %6, i64 8
  %17 = call ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %16) #2
  %18 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %4, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  %19 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br i1 %19, label %21, label %20

20:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  br label %34

21:                                               ; preds = %15
  %22 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  %23 = getelementptr inbounds %"struct.std::pair", ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !23
  %25 = icmp eq ptr %24, null
  br i1 %25, label %30, label %26

26:                                               ; preds = %21
  %27 = load ptr, ptr %24, align 8, !tbaa !26
  %28 = getelementptr inbounds ptr, ptr %27, i64 1
  %29 = load ptr, ptr %28, align 8
  call void %29(ptr noundef nonnull align 8 dereferenceable(12) %24) #2
  br label %30

30:                                               ; preds = %26, %21
  br label %31

31:                                               ; preds = %30
  %32 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %3, i32 noundef 0) #2
  %33 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %5, i32 0, i32 0
  store ptr %32, ptr %33, align 8
  br label %15, !llvm.loop !28

34:                                               ; preds = %20
  %35 = getelementptr inbounds i8, ptr %6, i64 8
  call void @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %35) #2
  br label %36

36:                                               ; preds = %34, %10
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEES8_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !20, i64 56}
!10 = !{!"_ZTSN3g2o18ParameterContainerE", !11, i64 8, !20, i64 56}
!11 = !{!"_ZTSSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE", !12, i64 0}
!12 = !{!"_ZTSSt8_Rb_treeIiSt4pairIKiPN3g2o9ParameterEESt10_Select1stIS5_ESt4lessIiESaIS5_EE", !13, i64 0}
!13 = !{!"_ZTSNSt8_Rb_treeIiSt4pairIKiPN3g2o9ParameterEESt10_Select1stIS5_ESt4lessIiESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !14, i64 0, !16, i64 8}
!14 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessIiEE", !15, i64 0}
!15 = !{!"_ZTSSt4lessIiE"}
!16 = !{!"_ZTSSt15_Rb_tree_header", !17, i64 0, !19, i64 32}
!17 = !{!"_ZTSSt18_Rb_tree_node_base", !18, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!18 = !{!"_ZTSSt14_Rb_tree_color", !7, i64 0}
!19 = !{!"long", !7, i64 0}
!20 = !{!"bool", !7, i64 0}
!21 = !{i8 0, i8 2}
!22 = !{}
!23 = !{!24, !6, i64 8}
!24 = !{!"_ZTSSt4pairIKiPN3g2o9ParameterEE", !25, i64 0, !6, i64 8}
!25 = !{!"int", !7, i64 0}
!26 = !{!27, !27, i64 0}
!27 = !{!"vtable pointer", !8, i64 0}
!28 = distinct !{!28, !29}
!29 = !{!"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::_Rb_tree_iterator" = type { ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3g2o18ParameterContainer5clearEv(ptr noundef nonnull align 8 dereferenceable(57) %0) local_unnamed_addr #0 align 2 {
  %2 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %4 = getelementptr inbounds i8, ptr %0, i64 56
  %5 = load i8, ptr %4, align 8, !tbaa !5, !range !20, !noundef !21
  %6 = trunc nuw i8 %5 to i1
  br i1 %6, label %7, label %24

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = tail call ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %8) #2
  store ptr %9, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %10 = tail call ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %8) #2
  store ptr %10, ptr %3, align 8
  %11 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %20, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  call void @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %8) #2
  br label %24

.lr.ph:                                           ; preds = %7, %20
  %12 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #2
  %13 = getelementptr inbounds i8, ptr %12, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !22
  %15 = icmp eq ptr %14, null
  br i1 %15, label %20, label %16

16:                                               ; preds = %.lr.ph
  %17 = load ptr, ptr %14, align 8, !tbaa !25
  %18 = getelementptr inbounds i8, ptr %17, i64 8
  %19 = load ptr, ptr %18, align 8
  call void %19(ptr noundef nonnull align 8 dereferenceable(12) %14) #2
  br label %20

20:                                               ; preds = %.lr.ph, %16
  %21 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %22 = call ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %8) #2
  store ptr %22, ptr %3, align 8
  %23 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  br i1 %23, label %.lr.ph, label %._crit_edge, !llvm.loop !27

24:                                               ; preds = %1, %._crit_edge
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEES8_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKiPN3g2o9ParameterEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!6, !19, i64 56}
!6 = !{!"_ZTSN3g2o18ParameterContainerE", !7, i64 8, !19, i64 56}
!7 = !{!"_ZTSSt3mapIiPN3g2o9ParameterESt4lessIiESaISt4pairIKiS2_EEE", !8, i64 0}
!8 = !{!"_ZTSSt8_Rb_treeIiSt4pairIKiPN3g2o9ParameterEESt10_Select1stIS5_ESt4lessIiESaIS5_EE", !9, i64 0}
!9 = !{!"_ZTSNSt8_Rb_treeIiSt4pairIKiPN3g2o9ParameterEESt10_Select1stIS5_ESt4lessIiESaIS5_EE13_Rb_tree_implIS9_Lb1EEE", !10, i64 0, !12, i64 8}
!10 = !{!"_ZTSSt20_Rb_tree_key_compareISt4lessIiEE", !11, i64 0}
!11 = !{!"_ZTSSt4lessIiE"}
!12 = !{!"_ZTSSt15_Rb_tree_header", !13, i64 0, !18, i64 32}
!13 = !{!"_ZTSSt18_Rb_tree_node_base", !14, i64 0, !17, i64 8, !17, i64 16, !17, i64 24}
!14 = !{!"_ZTSSt14_Rb_tree_color", !15, i64 0}
!15 = !{!"omnipotent char", !16, i64 0}
!16 = !{!"Simple C++ TBAA"}
!17 = !{!"any pointer", !15, i64 0}
!18 = !{!"long", !15, i64 0}
!19 = !{!"bool", !15, i64 0}
!20 = !{i8 0, i8 2}
!21 = !{}
!22 = !{!23, !17, i64 8}
!23 = !{!"_ZTSSt4pairIKiPN3g2o9ParameterEE", !24, i64 0, !17, i64 8}
!24 = !{!"int", !15, i64 0}
!25 = !{!26, !26, i64 0}
!26 = !{!"vtable pointer", !16, i64 0}
!27 = distinct !{!27, !28}
!28 = !{!"llvm.loop.mustprogress"}


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