; LLVM IR from pixelsdb/mini-pixels :: pixels-core/lib/encoding/RunLenIntDecoder.ll (ZN16RunLenIntDecoderD2Ev)

; 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.RunLenIntDecoder = type <{ %class.Decoder, ptr, i8, [3 x i8], i32, i32, [4 x i8], %"class.std::shared_ptr", %class.EncodingUtils, i8, [7 x i8] }>
%class.Decoder = type { ptr }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%class.EncodingUtils = type { ptr, ptr }

@_ZTV16RunLenIntDecoder = external dso_local unnamed_addr constant { [5 x ptr] }, align 8

; Function Attrs: nounwind
declare void @_ZN13EncodingUtilsD1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN16RunLenIntDecoderD2Ev(ptr noundef nonnull align 8 dereferenceable(65) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  store ptr getelementptr inbounds inrange(-16, 24) ({ [5 x ptr] }, ptr @_ZTV16RunLenIntDecoder, i32 0, i32 0, i32 2), ptr %3, align 8, !tbaa !9
  %4 = getelementptr inbounds %class.RunLenIntDecoder, ptr %3, i32 0, i32 1
  %5 = load ptr, ptr %4, align 8, !tbaa !11
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %14

7:                                                ; preds = %1
  %8 = getelementptr inbounds %class.RunLenIntDecoder, ptr %3, i32 0, i32 1
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @_ZdaPv(ptr noundef %9) #3
  br label %12

12:                                               ; preds = %11, %7
  %13 = getelementptr inbounds %class.RunLenIntDecoder, ptr %3, i32 0, i32 1
  store ptr null, ptr %13, align 8, !tbaa !11
  br label %14

14:                                               ; preds = %12, %1
  %15 = getelementptr inbounds %class.RunLenIntDecoder, ptr %3, i32 0, i32 8
  call void @_ZN13EncodingUtilsD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %15) #4
  %16 = getelementptr inbounds %class.RunLenIntDecoder, ptr %3, i32 0, i32 7
  call void @_ZNSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %16) #4
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #2

attributes #0 = { 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 #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 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 = { builtin nounwind }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTS16RunLenIntDecoder", !13, i64 0, !6, i64 8, !14, i64 16, !15, i64 20, !15, i64 24, !16, i64 32, !19, i64 48, !14, i64 64}
!13 = !{!"_ZTS7Decoder"}
!14 = !{!"bool", !7, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!"_ZTSSt10shared_ptrI10ByteBufferE", !17, i64 0}
!17 = !{!"_ZTSSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EE", !6, i64 0, !18, i64 8}
!18 = !{!"_ZTSSt14__shared_countILN9__gnu_cxx12_Lock_policyE2EE", !6, i64 0}
!19 = !{!"_ZTS13EncodingUtils", !6, i64 0, !6, i64 8}


; 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"

@_ZTV16RunLenIntDecoder = external dso_local unnamed_addr constant { [5 x ptr] }, align 8

; Function Attrs: nounwind
declare void @_ZN13EncodingUtilsD1Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN16RunLenIntDecoderD2Ev(ptr noundef nonnull align 8 dereferenceable(65) %0) unnamed_addr #1 align 2 {
  store ptr getelementptr inbounds inrange(-16, 24) (i8, ptr @_ZTV16RunLenIntDecoder, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load ptr, ptr %2, align 8, !tbaa !8
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @_ZdaPv(ptr noundef nonnull %3) #3
  store ptr null, ptr %2, align 8, !tbaa !8
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 48
  tail call void @_ZN13EncodingUtilsD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %6) #4
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @_ZNSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %7) #4
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #2

attributes #0 = { 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 #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 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 = { builtin nounwind }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !11, i64 8}
!9 = !{!"_ZTS16RunLenIntDecoder", !10, i64 0, !11, i64 8, !13, i64 16, !14, i64 20, !14, i64 24, !15, i64 32, !18, i64 48, !13, i64 64}
!10 = !{!"_ZTS7Decoder"}
!11 = !{!"any pointer", !12, i64 0}
!12 = !{!"omnipotent char", !7, i64 0}
!13 = !{!"bool", !12, i64 0}
!14 = !{!"int", !12, i64 0}
!15 = !{!"_ZTSSt10shared_ptrI10ByteBufferE", !16, i64 0}
!16 = !{!"_ZTSSt12__shared_ptrI10ByteBufferLN9__gnu_cxx12_Lock_policyE2EE", !11, i64 0, !17, i64 8}
!17 = !{!"_ZTSSt14__shared_countILN9__gnu_cxx12_Lock_policyE2EE", !11, i64 0}
!18 = !{!"_ZTS13EncodingUtils", !11, i64 0, !11, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass