; LLVM IR from ksw2000/Data-Structure-in-C :: Tree (Red-Black-Tree)

; 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.number = type { i32 }
%struct.rbTree = type { ptr, ptr, ptr }

@__const.main.list = external hidden unnamed_addr constant [8 x %struct.number], align 16
@.str.7 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [23 x i8], align 1

; 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: nounwind uwtable
declare dso_local ptr @__RBTree__(ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @numberLessFunc(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @inorder(ptr noundef) #1

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #1 {
  %1 = alloca i32, align 4
  %2 = alloca [8 x %struct.number], align 16
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.main.list, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 8, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %6 = call ptr @__RBTree__(ptr noundef @numberLessFunc)
  store ptr %6, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %26, %0
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %11, label %29

11:                                               ; preds = %7
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.7, i32 noundef %12)
  %14 = load ptr, ptr %4, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.rbTree, ptr %14, i32 0, i32 2
  %16 = load ptr, ptr %15, align 8, !tbaa !11
  %17 = load ptr, ptr %4, align 8, !tbaa !9
  %18 = getelementptr inbounds [8 x %struct.number], ptr %2, i64 0, i64 0
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds %struct.number, ptr %18, i64 %20
  call void %16(ptr noundef %17, ptr noundef %21)
  %22 = load ptr, ptr %4, align 8, !tbaa !9
  %23 = getelementptr inbounds %struct.rbTree, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  call void @inorder(ptr noundef %24)
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  br label %26

26:                                               ; preds = %11
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %5, align 4, !tbaa !5
  br label %7, !llvm.loop !14

29:                                               ; preds = %7
  %30 = load ptr, ptr %4, align 8, !tbaa !9
  %31 = getelementptr inbounds %struct.rbTree, ptr %30, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8, !tbaa !13
  call void @inorder(ptr noundef %32)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #4
  ret i32 0
}

; 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "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 }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"rbTree", !10, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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.number = type { i32 }

@__const.main.list = external hidden unnamed_addr constant [8 x %struct.number], align 16
@.str.7 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [23 x i8], align 1

; 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: nounwind uwtable
declare dso_local ptr @__RBTree__(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @numberLessFunc(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @inorder(ptr noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = alloca [8 x %struct.number], align 16
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull align 16 dereferenceable(32) @__const.main.list, i64 32, i1 false)
  %2 = tail call ptr @__RBTree__(ptr noundef nonnull @numberLessFunc)
  %3 = getelementptr inbounds i8, ptr %2, i64 16
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 0)
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  call void %5(ptr noundef %2, ptr noundef nonnull %1) #4
  %6 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %6)
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 1)
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %1, i64 4
  call void %9(ptr noundef nonnull %2, ptr noundef nonnull %10) #4
  %11 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %11)
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %13 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 2)
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %1, i64 8
  call void %14(ptr noundef nonnull %2, ptr noundef nonnull %15) #4
  %16 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %16)
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %18 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 3)
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %1, i64 12
  call void %19(ptr noundef nonnull %2, ptr noundef nonnull %20) #4
  %21 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %21)
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 4)
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %1, i64 16
  call void %24(ptr noundef nonnull %2, ptr noundef nonnull %25) #4
  %26 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %26)
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %28 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 5)
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %1, i64 20
  call void %29(ptr noundef nonnull %2, ptr noundef nonnull %30) #4
  %31 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %31)
  %32 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %33 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 6)
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds i8, ptr %1, i64 24
  call void %34(ptr noundef nonnull %2, ptr noundef nonnull %35) #4
  %36 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %36)
  %37 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %38 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i32 noundef 7)
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = getelementptr inbounds i8, ptr %1, i64 28
  call void %39(ptr noundef nonnull %2, ptr noundef nonnull %40) #4
  %41 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %41)
  %42 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %43 = load ptr, ptr %2, align 8, !tbaa !10
  call void @inorder(ptr noundef %43)
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %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) #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nofree 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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, !7, i64 16}
!6 = !{!"rbTree", !7, i64 0, !7, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass