; LLVM IR from paroj/gltut :: glsdk/glmesh/source (Mesh)

; 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.glmesh::Mesh" = type { %"class.std::auto_ptr.0" }
%"class.std::auto_ptr.0" = type { ptr }
%"struct.glmesh::MeshData" = type { %"class.std::vector.1", i32, %"class.std::map", %"class.std::vector" }
%"class.std::vector.1" = type { %"struct.std::_Vector_base.2" }
%"struct.std::_Vector_base.2" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, unsigned int>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, unsigned int>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, unsigned int>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, unsigned int>>, std::less<std::__cxx11::basic_string<char>>>::_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 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<glmesh::(anonymous namespace)::RenderCmd, std::allocator<glmesh::(anonymous namespace)::RenderCmd>>::_Vector_impl" }
%"struct.std::_Vector_base<glmesh::(anonymous namespace)::RenderCmd, std::allocator<glmesh::(anonymous namespace)::RenderCmd>>::_Vector_impl" = type { %"struct.std::_Vector_base<glmesh::(anonymous namespace)::RenderCmd, std::allocator<glmesh::(anonymous namespace)::RenderCmd>>::_Vector_impl_data" }
%"struct.std::_Vector_base<glmesh::(anonymous namespace)::RenderCmd, std::allocator<glmesh::(anonymous namespace)::RenderCmd>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type <{ %"class.std::__cxx11::basic_string", i32, [4 x i8] }>
%"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] }

; 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 nounwind uwtable
declare dso_local noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE4findERS9_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK6glmesh4Mesh16DoesVariantExistERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(32) %1) #2 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %10 = getelementptr inbounds %"class.glmesh::Mesh", ptr %9, i32 0, i32 0
  %11 = call noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #3
  %12 = getelementptr inbounds %"struct.glmesh::MeshData", ptr %11, i32 0, i32 2
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE4findERS9_(ptr noundef nonnull align 8 dereferenceable(48) %12, ptr noundef nonnull align 8 dereferenceable(32) %13)
  %15 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %6, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %16 = getelementptr inbounds %"class.glmesh::Mesh", ptr %9, i32 0, i32 0
  %17 = call noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #3
  %18 = getelementptr inbounds %"struct.glmesh::MeshData", ptr %17, i32 0, i32 2
  %19 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %18) #3
  %20 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %7, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  %21 = call noundef zeroext i1 @_ZSteqRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEESB_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  br i1 %21, label %27, label %22

22:                                               ; preds = %2
  %23 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  %24 = getelementptr inbounds %"struct.std::pair", ptr %23, i32 0, i32 1
  %25 = load i32, ptr %24, align 8, !tbaa !9
  %26 = icmp eq i32 %25, 0
  br label %27

27:                                               ; preds = %22, %2
  %28 = phi i1 [ true, %2 ], [ %26, %22 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br i1 %28, label %29, label %30

29:                                               ; preds = %27
  store i1 false, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %31

30:                                               ; preds = %27
  store i1 true, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %31

31:                                               ; preds = %30, %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %32 = load i1, ptr %3, align 1
  ret i1 %32
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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, !14, i64 32}
!10 = !{!"_ZTSSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjE", !11, i64 0, !14, i64 32}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !7, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!"int", !7, i64 0}


; 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 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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE4findERS9_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK6glmesh4Mesh16DoesVariantExistERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(32) %1) local_unnamed_addr #2 align 2 {
  %3 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = tail call noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #3
  %6 = getelementptr inbounds i8, ptr %5, i64 32
  %7 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE4findERS9_(ptr noundef nonnull align 8 dereferenceable(48) %6, ptr noundef nonnull align 8 dereferenceable(32) %1)
  store ptr %7, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %8 = tail call noundef ptr @_ZNKSt8auto_ptrIN6glmesh8MeshDataEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #3
  %9 = getelementptr inbounds i8, ptr %8, i64 32
  %10 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjSt4lessIS5_ESaISt4pairIKS5_jEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %9) #3
  store ptr %10, ptr %4, align 8
  %11 = call noundef zeroext i1 @_ZSteqRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEESB_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br i1 %11, label %.critedge, label %12

12:                                               ; preds = %2
  %13 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %14 = getelementptr inbounds i8, ptr %13, i64 32
  %15 = load i32, ptr %14, align 8, !tbaa !5
  %16 = icmp ne i32 %15, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %17

.critedge:                                        ; preds = %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %17

17:                                               ; preds = %12, %.critedge
  %.0 = phi i1 [ false, %.critedge ], [ %16, %12 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret i1 %.0
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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, !13, i64 32}
!6 = !{!"_ZTSSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjE", !7, i64 0, !13, i64 32}
!7 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !8, i64 0, !12, i64 8, !10, i64 16}
!8 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"long", !10, i64 0}
!13 = !{!"int", !10, i64 0}


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