; LLVM IR from moarseniy/CudaFEMproject :: FEMproject/thirdparty/segyio/src/SegyIO.ll (ZN7CSegyIOD2Ev)

; 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.CSegyIO = type <{ ptr, i32, i32, i32, float, i32, [71 x i32], [27 x i32], [4 x i8], ptr, ptr, i64, %"class.std::basic_ifstream", %"class.std::basic_ofstream", %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", i8, i8, [6 x i8] }>
%"class.std::basic_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon.0 }
%union.anon.0 = type { i32 }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::basic_ofstream" = type { %"class.std::basic_ostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZTV7CSegyIO = external dso_local unnamed_addr constant { [6 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7CSegyIOD2Ev(ptr noundef nonnull align 8 dereferenceable(1546) %0) unnamed_addr #0 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, 32) ({ [6 x ptr] }, ptr @_ZTV7CSegyIO, i32 0, i32 0, i32 2), ptr %3, align 8, !tbaa !9
  %4 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 9
  %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.CSegyIO, ptr %3, i32 0, i32 9
  %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) #2
  br label %12

12:                                               ; preds = %11, %7
  %13 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 9
  store ptr null, ptr %13, align 8, !tbaa !11
  br label %14

14:                                               ; preds = %12, %1
  %15 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 10
  %16 = load ptr, ptr %15, align 8, !tbaa !29
  %17 = icmp ne ptr %16, null
  br i1 %17, label %18, label %25

18:                                               ; preds = %14
  %19 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 10
  %20 = load ptr, ptr %19, align 8, !tbaa !29
  %21 = icmp eq ptr %20, null
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @_ZdaPv(ptr noundef %20) #2
  br label %23

23:                                               ; preds = %22, %18
  %24 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 10
  store ptr null, ptr %24, align 8, !tbaa !29
  br label %25

25:                                               ; preds = %23, %14
  %26 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 15
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %26) #3
  %27 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 14
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %27) #3
  %28 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 13
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %28) #3
  %29 = getelementptr inbounds %class.CSegyIO, ptr %3, i32 0, i32 12
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %29) #3
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #1

attributes #0 = { 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 #1 = { 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 #2 = { builtin nounwind }
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 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !6, i64 424}
!12 = !{!"_ZTS7CSegyIO", !13, i64 8, !13, i64 12, !13, i64 16, !14, i64 20, !13, i64 24, !7, i64 28, !7, i64 312, !6, i64 424, !6, i64 432, !15, i64 440, !16, i64 448, !25, i64 968, !27, i64 1480, !27, i64 1512, !22, i64 1544, !22, i64 1545}
!13 = !{!"int", !7, i64 0}
!14 = !{!"float", !7, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = !{!"_ZTSSt14basic_ifstreamIcSt11char_traitsIcEE", !17, i64 0, !18, i64 16}
!17 = !{!"_ZTSSi", !15, i64 8}
!18 = !{!"_ZTSSt13basic_filebufIcSt11char_traitsIcEE", !19, i64 0, !7, i64 64, !21, i64 104, !23, i64 120, !24, i64 124, !24, i64 132, !24, i64 140, !6, i64 152, !15, i64 160, !22, i64 168, !22, i64 169, !22, i64 170, !7, i64 171, !6, i64 176, !6, i64 184, !22, i64 192, !6, i64 200, !6, i64 208, !15, i64 216, !6, i64 224, !6, i64 232}
!19 = !{!"_ZTSSt15basic_streambufIcSt11char_traitsIcEE", !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !20, i64 56}
!20 = !{!"_ZTSSt6locale", !6, i64 0}
!21 = !{!"_ZTSSt12__basic_fileIcE", !6, i64 0, !22, i64 8}
!22 = !{!"bool", !7, i64 0}
!23 = !{!"_ZTSSt13_Ios_Openmode", !7, i64 0}
!24 = !{!"_ZTS11__mbstate_t", !13, i64 0, !7, i64 4}
!25 = !{!"_ZTSSt14basic_ofstreamIcSt11char_traitsIcEE", !26, i64 0, !18, i64 8}
!26 = !{!"_ZTSSo"}
!27 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !28, i64 0, !15, i64 8, !7, i64 16}
!28 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!29 = !{!12, !6, i64 432}


; 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"

@_ZTV7CSegyIO = external dso_local unnamed_addr constant { [6 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7CSegyIOD2Ev(ptr noundef nonnull align 8 dereferenceable(1546) %0) unnamed_addr #0 align 2 {
  store ptr getelementptr inbounds inrange(-16, 32) (i8, ptr @_ZTV7CSegyIO, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 424
  %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) #2
  store ptr null, ptr %2, align 8, !tbaa !8
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 432
  %7 = load ptr, ptr %6, align 8, !tbaa !28
  %.not2 = icmp eq ptr %7, null
  br i1 %.not2, label %9, label %8

8:                                                ; preds = %5
  tail call void @_ZdaPv(ptr noundef nonnull %7) #2
  store ptr null, ptr %6, align 8, !tbaa !28
  br label %9

9:                                                ; preds = %8, %5
  %10 = getelementptr inbounds i8, ptr %0, i64 1512
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #3
  %11 = getelementptr inbounds i8, ptr %0, i64 1480
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  %12 = getelementptr inbounds i8, ptr %0, i64 968
  tail call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %12) #3
  %13 = getelementptr inbounds i8, ptr %0, i64 448
  tail call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %13) #3
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #1

attributes #0 = { 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 #1 = { 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 #2 = { builtin nounwind }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !13, i64 424}
!9 = !{!"_ZTS7CSegyIO", !10, i64 8, !10, i64 12, !10, i64 16, !12, i64 20, !10, i64 24, !11, i64 28, !11, i64 312, !13, i64 424, !13, i64 432, !14, i64 440, !15, i64 448, !24, i64 968, !26, i64 1480, !26, i64 1512, !21, i64 1544, !21, i64 1545}
!10 = !{!"int", !11, i64 0}
!11 = !{!"omnipotent char", !7, i64 0}
!12 = !{!"float", !11, i64 0}
!13 = !{!"any pointer", !11, i64 0}
!14 = !{!"long", !11, i64 0}
!15 = !{!"_ZTSSt14basic_ifstreamIcSt11char_traitsIcEE", !16, i64 0, !17, i64 16}
!16 = !{!"_ZTSSi", !14, i64 8}
!17 = !{!"_ZTSSt13basic_filebufIcSt11char_traitsIcEE", !18, i64 0, !11, i64 64, !20, i64 104, !22, i64 120, !23, i64 124, !23, i64 132, !23, i64 140, !13, i64 152, !14, i64 160, !21, i64 168, !21, i64 169, !21, i64 170, !11, i64 171, !13, i64 176, !13, i64 184, !21, i64 192, !13, i64 200, !13, i64 208, !14, i64 216, !13, i64 224, !13, i64 232}
!18 = !{!"_ZTSSt15basic_streambufIcSt11char_traitsIcEE", !13, i64 8, !13, i64 16, !13, i64 24, !13, i64 32, !13, i64 40, !13, i64 48, !19, i64 56}
!19 = !{!"_ZTSSt6locale", !13, i64 0}
!20 = !{!"_ZTSSt12__basic_fileIcE", !13, i64 0, !21, i64 8}
!21 = !{!"bool", !11, i64 0}
!22 = !{!"_ZTSSt13_Ios_Openmode", !11, i64 0}
!23 = !{!"_ZTS11__mbstate_t", !10, i64 0, !11, i64 4}
!24 = !{!"_ZTSSt14basic_ofstreamIcSt11char_traitsIcEE", !25, i64 0, !17, i64 8}
!25 = !{!"_ZTSSo"}
!26 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !27, i64 0, !14, i64 8, !11, i64 16}
!27 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !13, i64 0}
!28 = !{!9, !13, i64 432}


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