; LLVM IR from amritansh22/Data-Structures-and-Algorithms-in-cpp :: design-add-and-search-words-data-structure/Z7addWordNSt7/cxx1112basic_stringIcSt_0983f004/Z7addWordNSt7 (traitsIcESaIcEEE)

; 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.Trie = type { %"class.std::vector", %"class.std::__cxx11::basic_string" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Trie *, std::allocator<Trie *>>::_Vector_impl" }
%"struct.std::_Vector_base<Trie *, std::allocator<Trie *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Trie *, std::allocator<Trie *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Trie *, std::allocator<Trie *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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] }

@root = external dso_local global ptr, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7addWordNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %7 = load ptr, ptr @root, align 8, !tbaa !5
  store ptr %7, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %66, %1
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = sext i32 %9 to i64
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %12 = icmp ult i64 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %69

14:                                               ; preds = %8
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %class.Trie, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %4, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %18)
  %20 = load i8, ptr %19, align 1, !tbaa !11
  %21 = sext i8 %20 to i32
  %22 = sub nsw i32 %21, 97
  %23 = sext i32 %22 to i64
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %16, i64 noundef %23) #5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = icmp eq ptr %25, null
  br i1 %26, label %27, label %44

27:                                               ; preds = %14
  %28 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 56) #6
  invoke void @_ZN4TrieC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %28)
          to label %29 unwind label %40

29:                                               ; preds = %27
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds %class.Trie, ptr %30, i32 0, i32 0
  %32 = load i32, ptr %4, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %33)
  %35 = load i8, ptr %34, align 1, !tbaa !11
  %36 = sext i8 %35 to i32
  %37 = sub nsw i32 %36, 97
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %31, i64 noundef %38) #5
  store ptr %28, ptr %39, align 8, !tbaa !5
  br label %44

40:                                               ; preds = %27
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %5, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %28, i64 noundef 56) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  br label %70

44:                                               ; preds = %29, %14
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %class.Trie, ptr %45, i32 0, i32 0
  %47 = load i32, ptr %4, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %48)
  %50 = load i8, ptr %49, align 1, !tbaa !11
  %51 = sext i8 %50 to i32
  %52 = sub nsw i32 %51, 97
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %46, i64 noundef %53) #5
  %55 = load ptr, ptr %54, align 8, !tbaa !5
  store ptr %55, ptr %3, align 8, !tbaa !5
  %56 = load i32, ptr %4, align 4, !tbaa !9
  %57 = add nsw i32 %56, 1
  %58 = sext i32 %57 to i64
  %59 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %60 = icmp eq i64 %58, %59
  br i1 %60, label %61, label %65

61:                                               ; preds = %44
  %62 = load ptr, ptr %3, align 8, !tbaa !5
  %63 = getelementptr inbounds %class.Trie, ptr %62, i32 0, i32 1
  %64 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %63, ptr noundef nonnull align 8 dereferenceable(32) %0)
  br label %65

65:                                               ; preds = %61, %44
  br label %66

66:                                               ; preds = %65
  %67 = load i32, ptr %4, align 4, !tbaa !9
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %4, align 4, !tbaa !9
  br label %8, !llvm.loop !12

69:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void

70:                                               ; preds = %40
  %71 = load ptr, ptr %5, align 8
  %72 = load i32, ptr %6, align 4
  %73 = insertvalue { ptr, i32 } poison, ptr %71, 0
  %74 = insertvalue { ptr, i32 } %73, i32 %72, 1
  resume { ptr, i32 } %74
}

; 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 noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4TrieC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin 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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

@root = external dso_local local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7addWordNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = load ptr, ptr @root, align 8, !tbaa !5
  %3 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %33, %1
  ret void

.lr.ph:                                           ; preds = %1, %33
  %indvars.iv = phi i64 [ %indvars.iv.next, %33 ], [ 0, %1 ]
  %.014 = phi ptr [ %27, %33 ], [ %2, %1 ]
  %4 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %5 = load i8, ptr %4, align 1, !tbaa !9
  %6 = sext i8 %5 to i64
  %7 = add nsw i64 %6, -97
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %.014, i64 noundef %7) #4
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %21

11:                                               ; preds = %.lr.ph
  %12 = tail call noalias noundef nonnull dereferenceable(56) ptr @_Znwm(i64 noundef 56) #5
  invoke void @_ZN4TrieC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %12)
          to label %13 unwind label %19

13:                                               ; preds = %11
  %14 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %15 = load i8, ptr %14, align 1, !tbaa !9
  %16 = sext i8 %15 to i64
  %17 = add nsw i64 %16, -97
  %18 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %.014, i64 noundef %17) #4
  store ptr %12, ptr %18, align 8, !tbaa !5
  br label %21

19:                                               ; preds = %11
  %20 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %12, i64 noundef 56) #6
  resume { ptr, i32 } %20

21:                                               ; preds = %13, %.lr.ph
  %22 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %23 = load i8, ptr %22, align 1, !tbaa !9
  %24 = sext i8 %23 to i64
  %25 = add nsw i64 %24, -97
  %26 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %.014, i64 noundef %25) #4
  %27 = load ptr, ptr %26, align 8, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %28 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %29 = icmp eq i64 %28, %indvars.iv.next
  br i1 %29, label %30, label %33

30:                                               ; preds = %21
  %31 = getelementptr inbounds i8, ptr %27, i64 24
  %32 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %31, ptr noundef nonnull align 8 dereferenceable(32) %0)
  br label %33

33:                                               ; preds = %21, %30
  %34 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %35 = icmp ugt i64 %34, %indvars.iv.next
  br i1 %35, label %.lr.ph, label %._crit_edge, !llvm.loop !10
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4TrieSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4TrieC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

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 = { 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 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { builtin allocsize(0) }
attributes #6 = { builtin 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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