; LLVM IR from KoishiDB/Koishi-DB :: src/type/key.ll (ZNK8koishidb21InternalKeyComparator7CompareERKNS_5SliceES3_)

; 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.koishidb::Slice" = type { ptr, i64 }

; 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 uwtable
define dso_local noundef i32 @_ZNK8koishidb21InternalKeyComparator7CompareERKNS_5SliceES3_(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, ptr noundef nonnull align 8 dereferenceable(16) %2) unnamed_addr #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.koishidb::Slice", align 8
  %8 = alloca %"class.koishidb::Slice", align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #3
  call void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16) %7)
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #3
  call void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16) %8)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef %7, ptr noundef %9)
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  call void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef %8, ptr noundef %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %15 = call noundef i32 @_ZNK8koishidb5Slice7CompareERKS0_(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 8 dereferenceable(16) %8)
  store i32 %15, ptr %11, align 4, !tbaa !9
  %16 = load i32, ptr %11, align 4, !tbaa !9
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %30

18:                                               ; preds = %3
  %19 = load i64, ptr %9, align 8, !tbaa !11
  %20 = load i64, ptr %10, align 8, !tbaa !11
  %21 = icmp ult i64 %19, %20
  br i1 %21, label %22, label %23

22:                                               ; preds = %18
  store i32 1, ptr %11, align 4, !tbaa !9
  br label %29

23:                                               ; preds = %18
  %24 = load i64, ptr %9, align 8, !tbaa !11
  %25 = load i64, ptr %10, align 8, !tbaa !11
  %26 = icmp ugt i64 %24, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %23
  store i32 -1, ptr %11, align 4, !tbaa !9
  br label %28

28:                                               ; preds = %27, %23
  br label %29

29:                                               ; preds = %28, %22
  br label %30

30:                                               ; preds = %29, %3
  %31 = load i32, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #3
  ret i32 %31
}

declare void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2

declare void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, ptr noundef) #2

declare noundef i32 @_ZNK8koishidb5Slice7CompareERKS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, 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"

%"class.koishidb::Slice" = type { ptr, i64 }

; 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 uwtable
define dso_local noundef i32 @_ZNK8koishidb21InternalKeyComparator7CompareERKNS_5SliceES3_(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, ptr noundef nonnull align 8 dereferenceable(16) %2) unnamed_addr #1 align 2 {
  %4 = alloca %"class.koishidb::Slice", align 8
  %5 = alloca %"class.koishidb::Slice", align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #3
  call void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16) %4)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #3
  call void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16) %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #3
  call void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16) %1, ptr noundef nonnull %4, ptr noundef nonnull %6)
  call void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16) %2, ptr noundef nonnull %5, ptr noundef nonnull %7)
  %8 = call noundef i32 @_ZNK8koishidb5Slice7CompareERKS0_(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 8 dereferenceable(16) %5)
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %16

10:                                               ; preds = %3
  %11 = load i64, ptr %6, align 8, !tbaa !5
  %12 = load i64, ptr %7, align 8, !tbaa !5
  %13 = icmp ult i64 %11, %12
  br i1 %13, label %16, label %14

14:                                               ; preds = %10
  %15 = icmp ugt i64 %11, %12
  %spec.select = sext i1 %15 to i32
  br label %16

16:                                               ; preds = %14, %10, %3
  %.0 = phi i32 [ %8, %3 ], [ 1, %10 ], [ %spec.select, %14 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #3
  ret i32 %.0
}

declare void @_ZN8koishidb5SliceC1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2

declare void @_ZN8koishidb14ExtractUserKeyERKNS_5SliceEPS0_Pm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, ptr noundef) local_unnamed_addr #2

declare noundef i32 @_ZNK8koishidb5Slice7CompareERKS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass