; LLVM IR from hbatagelo/abcg :: abcg/external/glslang/glslang/MachineIndependent (SymbolTable)

; 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.glslang::TSymbolTableLevel" = type <{ %"class.std::map", ptr, %"class.glslang::TVector.9", i32, i8, [3 x i8] }>
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>>, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>>, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<const std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, glslang::TSymbol *>>>::_Rb_tree_impl" = type { %"class.glslang::pool_allocator.8", [8 x i8], %"struct.std::_Rb_tree_header" }
%"class.glslang::pool_allocator.8" = type { ptr }
%"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.glslang::TVector.9" = type { %"class.std::vector.10" }
%"class.std::vector.10" = type { %"struct.std::_Vector_base.11" }
%"struct.std::_Vector_base.11" = type { %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>>>::_Vector_impl" = type { %"class.glslang::pool_allocator.12", %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>>>::_Vector_impl_data" }
%"class.glslang::pool_allocator.12" = type { ptr }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>, glslang::pool_allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { %"class.std::__cxx11::basic_string", ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>::_Alloc_hider", i64, %union.anon.0 }
%"struct.std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char>>::_Alloc_hider" = type { %"class.glslang::pool_allocator", ptr }
%"class.glslang::pool_allocator" = type { ptr }
%union.anon.0 = 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 ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEESF_(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_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7glslang17TSymbolTableLevel8readOnlyEv(ptr noundef nonnull align 8 dereferenceable(101) %0) #2 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
  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
  %6 = getelementptr inbounds %"class.glslang::TSymbolTableLevel", ptr %5, i32 0, i32 0
  %7 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %6) #3
  %8 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %3, i32 0, i32 0
  store ptr %7, ptr %8, align 8
  br label %9

9:                                                ; preds = %22, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %10 = getelementptr inbounds %"class.glslang::TSymbolTableLevel", ptr %5, i32 0, i32 0
  %11 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %10) #3
  %12 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %4, i32 0, i32 0
  store ptr %11, ptr %12, align 8
  %13 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEESF_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %24

15:                                               ; preds = %9
  %16 = call noundef nonnull align 8 dereferenceable(48) ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %17 = getelementptr inbounds %"struct.std::pair", ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = load ptr, ptr %18, align 8, !tbaa !15
  %20 = getelementptr inbounds ptr, ptr %19, i64 21
  %21 = load ptr, ptr %20, align 8
  call void %21(ptr noundef nonnull align 8 dereferenceable(33) %18)
  br label %22

22:                                               ; preds = %15
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br label %9, !llvm.loop !17

24:                                               ; preds = %14
  ret void
}

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, !6, i64 40}
!10 = !{!"_ZTSSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolEE", !11, i64 0, !6, i64 40}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEE", !12, i64 0, !14, i64 16, !7, i64 24}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEE12_Alloc_hiderE", !13, i64 0, !6, i64 8}
!13 = !{!"_ZTSN7glslang14pool_allocatorIcEE", !6, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!16, !16, i64 0}
!16 = !{!"vtable pointer", !8, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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 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 ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEESF_(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_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7glslang17TSymbolTableLevel8readOnlyEv(ptr noundef nonnull align 8 dereferenceable(101) %0) local_unnamed_addr #2 align 2 {
  %2 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %4 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #3
  store ptr %4, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = tail call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #3
  store ptr %5, ptr %3, align 8
  %6 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEESF_(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 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %7 = call noundef nonnull align 8 dereferenceable(48) ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %8 = getelementptr inbounds i8, ptr %7, i64 40
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = load ptr, ptr %9, align 8, !tbaa !14
  %11 = getelementptr inbounds i8, ptr %10, i64 168
  %12 = load ptr, ptr %11, align 8
  call void %12(ptr noundef nonnull align 8 dereferenceable(33) %9)
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %14 = call ptr @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolESt4lessIS7_ENS5_ISt4pairIKS7_S9_EEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %0) #3
  store ptr %14, ptr %3, align 8
  %15 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS5_7TSymbolEEESF_(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 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !16
}

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, !10, i64 40}
!6 = !{!"_ZTSSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEEPNS4_7TSymbolEE", !7, i64 0, !10, i64 40}
!7 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEEE", !8, i64 0, !13, i64 16, !11, i64 24}
!8 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcEN7glslang14pool_allocatorIcEEE12_Alloc_hiderE", !9, i64 0, !10, i64 8}
!9 = !{!"_ZTSN7glslang14pool_allocatorIcEE", !10, i64 0}
!10 = !{!"any pointer", !11, i64 0}
!11 = !{!"omnipotent char", !12, i64 0}
!12 = !{!"Simple C++ TBAA"}
!13 = !{!"long", !11, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !12, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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