; LLVM IR from yudi-matsuzake/libgenerics :: src (trie)

; 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.tnode_t = type { ptr, [256 x ptr] }
%struct.trie_t = type { i64, i64, %struct.tnode_t }

; Function Attrs: nounwind uwtable
declare dso_local ptr @trie_get_node_or_allocate(ptr noundef, ptr noundef, i64 noundef) #0

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

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

; Function Attrs: nounwind uwtable
define dso_local i32 @trie_add_element(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i64 %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %4
  store i32 1, ptr %5, align 4
  br label %51

14:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = load i64, ptr %8, align 8, !tbaa !9
  %18 = call ptr @trie_get_node_or_allocate(ptr noundef %15, ptr noundef %16, i64 noundef %17)
  store ptr %18, ptr %10, align 8, !tbaa !5
  %19 = load ptr, ptr %10, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.tnode_t, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %30

23:                                               ; preds = %14
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.trie_t, ptr %24, i32 0, i32 1
  %26 = load i64, ptr %25, align 8, !tbaa !13
  %27 = call noalias ptr @malloc(i64 noundef %26) #5
  %28 = load ptr, ptr %10, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.tnode_t, ptr %28, i32 0, i32 0
  store ptr %27, ptr %29, align 8, !tbaa !11
  br label %30

30:                                               ; preds = %23, %14
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.trie_t, ptr %31, i32 0, i32 1
  %33 = load i64, ptr %32, align 8, !tbaa !13
  %34 = icmp ne i64 %33, 0
  br i1 %34, label %35, label %46

35:                                               ; preds = %30
  %36 = load ptr, ptr %7, align 8, !tbaa !5
  %37 = icmp ne ptr %36, null
  br i1 %37, label %38, label %46

38:                                               ; preds = %35
  %39 = load ptr, ptr %10, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.tnode_t, ptr %39, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8, !tbaa !11
  %42 = load ptr, ptr %9, align 8, !tbaa !5
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.trie_t, ptr %43, i32 0, i32 1
  %45 = load i64, ptr %44, align 8, !tbaa !13
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %41, ptr align 1 %42, i64 %45, i1 false)
  br label %46

46:                                               ; preds = %38, %35, %30
  %47 = load ptr, ptr %6, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.trie_t, ptr %47, i32 0, i32 0
  %49 = load i64, ptr %48, align 8, !tbaa !15
  %50 = add i64 %49, 1
  store i64 %50, ptr %48, align 8, !tbaa !15
  store i32 0, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %51

51:                                               ; preds = %46, %13
  %52 = load i32, ptr %5, align 4
  ret i32 %52
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #0 = { 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 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"tnode_t", !6, i64 0, !7, i64 8}
!13 = !{!14, !10, i64 8}
!14 = !{!"trie_t", !10, i64 0, !10, i64 8, !12, i64 16}
!15 = !{!14, !10, 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"

; Function Attrs: nounwind uwtable
declare dso_local ptr @trie_get_node_or_allocate(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @trie_add_element(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr nocapture noundef readonly %3) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %20, label %5

5:                                                ; preds = %4
  %6 = tail call ptr @trie_get_node_or_allocate(ptr noundef nonnull %0, ptr noundef %1, i64 noundef %2)
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = load i64, ptr %9, align 8, !tbaa !10
  br i1 %8, label %11, label %._crit_edge

11:                                               ; preds = %5
  %12 = tail call noalias ptr @malloc(i64 noundef %10) #3
  store ptr %12, ptr %6, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %5, %11
  %13 = phi ptr [ %12, %11 ], [ %7, %5 ]
  %14 = icmp ne i64 %10, 0
  %15 = icmp ne ptr %1, null
  %or.cond = and i1 %15, %14
  br i1 %or.cond, label %16, label %17

16:                                               ; preds = %._crit_edge
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %13, ptr align 1 %3, i64 %10, i1 false)
  br label %17

17:                                               ; preds = %16, %._crit_edge
  %18 = load i64, ptr %0, align 8, !tbaa !13
  %19 = add i64 %18, 1
  store i64 %19, ptr %0, align 8, !tbaa !13
  br label %20

20:                                               ; preds = %4, %17
  %.0 = phi i32 [ 0, %17 ], [ 1, %4 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

attributes #0 = { 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 nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind allocsize(0) }

!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, !7, i64 0}
!6 = !{!"tnode_t", !7, i64 0, !8, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !12, i64 8}
!11 = !{!"trie_t", !12, i64 0, !12, i64 8, !6, i64 16}
!12 = !{!"long", !8, i64 0}
!13 = !{!11, !12, i64 0}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass