; LLVM IR from begeekmyfriend/bplustree :: tests (bplustree_demo)

; 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.bplus_tree_config = type { [1024 x i8], i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.bplus_tree_config, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1028, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %12, %0
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %18

8:                                                ; preds = %5
  %9 = call i32 @bplus_tree_setting(ptr noundef %2)
  %10 = icmp slt i32 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %8
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %21

12:                                               ; preds = %8
  %13 = getelementptr inbounds %struct.bplus_tree_config, ptr %2, i32 0, i32 0
  %14 = getelementptr inbounds [1024 x i8], ptr %13, i64 0, i64 0
  %15 = getelementptr inbounds %struct.bplus_tree_config, ptr %2, i32 0, i32 1
  %16 = load i32, ptr %15, align 4, !tbaa !9
  %17 = call ptr @bplus_tree_init(ptr noundef %14, i32 noundef %16)
  store ptr %17, ptr %3, align 8, !tbaa !5
  br label %5, !llvm.loop !12

18:                                               ; preds = %5
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  call void @command_process(ptr noundef %19)
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  call void @bplus_tree_deinit(ptr noundef %20)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %21

21:                                               ; preds = %18, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 1028, ptr %2) #3
  %22 = load i32, ptr %1, align 4
  ret i32 %22
}

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

; Function Attrs: nounwind uwtable
declare hidden i32 @bplus_tree_setting(ptr noundef) #0

declare ptr @bplus_tree_init(ptr noundef, i32 noundef) #2

; Function Attrs: nounwind uwtable
declare hidden void @command_process(ptr noundef) #0

declare void @bplus_tree_deinit(ptr noundef) #2

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

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 = { "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/C++ TBAA"}
!9 = !{!10, !11, i64 1024}
!10 = !{!"bplus_tree_config", !7, i64 0, !11, i64 1024}
!11 = !{!"int", !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"

%struct.bplus_tree_config = type { [1024 x i8], i32 }

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca %struct.bplus_tree_config, align 4
  call void @llvm.lifetime.start.p0(i64 1028, ptr nonnull %1) #3
  %2 = getelementptr inbounds i8, ptr %1, i64 1024
  br label %3

3:                                                ; preds = %0, %6
  %4 = call i32 @bplus_tree_setting(ptr noundef nonnull %1)
  %5 = icmp slt i32 %4, 0
  br i1 %5, label %.loopexit, label %6

6:                                                ; preds = %3
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = call ptr @bplus_tree_init(ptr noundef nonnull %1, i32 noundef %7) #3
  %9 = icmp eq ptr %8, null
  br i1 %9, label %3, label %10, !llvm.loop !10

10:                                               ; preds = %6
  call void @command_process(ptr noundef nonnull %8)
  call void @bplus_tree_deinit(ptr noundef nonnull %8) #3
  br label %.loopexit

.loopexit:                                        ; preds = %3, %10
  call void @llvm.lifetime.end.p0(i64 1028, ptr nonnull %1) #3
  ret i32 0
}

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

; Function Attrs: nounwind uwtable
declare hidden i32 @bplus_tree_setting(ptr noundef) local_unnamed_addr #0

declare ptr @bplus_tree_init(ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden void @command_process(ptr noundef) local_unnamed_addr #0

declare void @bplus_tree_deinit(ptr noundef) local_unnamed_addr #2

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

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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, !9, i64 1024}
!6 = !{!"bplus_tree_config", !7, i64 0, !9, i64 1024}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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